BEARING BEARING RIBBON

专利摘要:
rolling bearing tape, annular blade housing for an energy operated rotary knife. an undulating support strip for an energy-operated rotary knife providing the rolling bearing for rotation of a rotary knife blade with respect to a blade housing. the undulating support strip includes: a plurality of undulating bearings disposed in spaced relationship; and a flexible separator cage for positioning the plurality of spaced undulating bearings, the flexible separator cage including the first and second interconnected end, the first end of the separator cage including a wall defining a protruding member and the second end of the spacer cage. separator including a wall defining a receiving member, the first end protruding member and the second end receiving member being in relation to the opposite boundary and the first end protruding member extending into the second end receiving member to secure the first end to the second end and form an annular continuous undulating bearing ring.
公开号:BR112014001782B1
申请号:R112014001782-4
申请日:2012-07-13
公开日:2019-05-14
发明作者:Nicholas A. Mascari；Jeffrey A. Whited
申请人:Bettcher Industries, Inc.；
IPC主号:

专利说明:

Technical field [0001] The present disclosure relates to a rotary knife operated by energy.
Background [0002] Power operated rotary knives are widely used in meat processing facilities for meat cutting and trimming operations. Power-operated rotary knives are also used in a variety of other industries, where cutting and / or trimming operations need to be performed quickly and with less effort than would be the case if traditional cutting or trimming hand tools were used, eg, long knives, scissors, tweezers, etc.
[0003] By way of example, energy operated rotary knives can be effectively used for such diverse tasks as taxidermy and cutting and trimming elastomeric foam or urethane for a variety of applications, including vehicle seats.
[0004] Power operated rotary knives typically include a cable assembly and a head assembly attachable to the cable assembly. The head assembly includes an annular blade housing and an annular rotary knife blade supported for rotation by the blade housing. The annular rotary blade of conventional energy operated rotary knives is typically rotated by a drive assembly that includes a flexible rod drive assembly extending through an opening in the cable assembly. The rod drive assembly engages and rotates a pinion gear supported by the head assembly. THE
Petition 870190003445, of 11/01/2019, p. 18/163
2/141 flexible rod drive assembly includes a fixed outer case and a rotating inner drive shaft that is driven by a pneumatic or electric motor. The gear teeth of the pinion gear engage the matched gear teeth formed on an upper surface of the rotary knife blade.
[0005] By rotating the pinion gear through the drive shaft of the flexible rod drive assembly, the annular rotating blade rotates within the blade housing at a high RPM, in the order of 900 - 1900 RPM, depending on the structure and characteristics of the drive assembly including the motor, rod drive assembly and a diameter and number of gear teeth formed on the rotating knife blade. Conventional, energy-operated rotary knives are disclosed in U.S. Pat. US N ^s s 6,354, 949 to Barrels et al., 6,751,872 to Whited et al., 6,769,184 to Whited and 6,978,548 to Whited et al, all of which are assigned to the assignee of the present invention and all of which are incorporated herein in their respective totals by reference.
Summary [0006] In one aspect, the present disclosure relates to an energy operated rotary knife comprising: an annular rotary knife blade including a wall defining a knife blade support surface; a blade housing including a wall defining a blade housing supporting surface; and a blade support structure blade housing arranged between a knife blade support surface and a blade housing support surface, the blade support structure - blade housing
Petition 870190003445, of 11/01/2019, p. 19/163
3/141 supporting the knife blade for rotation with respect to the blade housing on a knife blade central axis, the blade support structure - blade housing including an elongated undulating support strip extending circumferentially around the axis knife blade center between a knife blade bearing surface and a blade housing bearing surface. In an exemplary embodiment, the elongated undulating support strip comprises a plurality of undulating bearings disposed in spaced relation and a flexible separator cage to position the plurality of spaced undulating bearings.
[0007] In another aspect, the present disclosure relates to a support structure for use with an energy operated rotary knife including an annular rotary knife blade rotating on a central axis and an annular blade housing, the support structure disposed between a knife blade support surface and a blade housing support surface for rotatingly fixing and supporting the knife blade with respect to the blade housing, the support structure comprising: an elongated undulating support strip having a plurality of corrugated bearings disposed in spaced relation and a flexible separator cage to position the plurality of spaced corrugated bearings, the corrugated support strip extending circumferentially between a knife blade support surface and a blade housing support surface, the separator cage forming at least a portion of a circle and each of the plurality of bearings ripples extending radially from the separator cage and adapted to contact a
Petition 870190003445, of 11/01/2019, p. 20/163
4/141 knife and blade holder support surface.
[0008] In another aspect, the present disclosure relates to a method of supporting an annular knife blade for rotation about a central axis in a blade housing of a rotary knife operated by energy, the method comprising: aligning a blade of knife and blade housing so that a knife blade bearing surface is in radial alignment with a blade housing bearing surface, a knife blade bearing surface and a blade housing bearing surface defining a passage cancel;
and routing an undulating support strip along the annular passage so that the strip extends circumferentially around the central axis of the knife blade between a knife blade bearing surface and a blade housing bearing surface forming at least a portion of a circle on a central axis.
In another aspect, the present disclosure relates to an energy-operated rotary knife comprising:
a head assembly including a gear box assembly, an annular rotary knife blade, a blade housing, and a blade support structure blade housing;
the blade housing coupled to the gearbox assembly and including an annular blade support section defining a support surface formed in an inner wall of the annular blade support section; the annular rotary knife blade including a body and a blade section extending axially from the body, the body including a first axially spaced top and bottom end and a radially spaced inner and outer wall, the
Petition 870190003445, of 11/01/2019, p. 21/163
5/141 blade section extending from the lower end of the body, the outer wall defining a knife blade support surface and a set of gear teeth, the set of gear teeth being axially spaced from the end upper body and from the knife blade support surface; the blade support structure - blade housing arranged between a knife blade support surface and a blade housing support surface; and a gearbox assembly gear kit, the gear kit including a transmission gear having a plurality of gear teeth that join with the knife blade gear teeth assembly to rotate the knife blade with respect to the blade housing.
[0010] In another aspect, the present disclosure relates to an annular rotary knife blade for rotation about a central axis in an energy operated rotary knife, the rotary knife blade comprising: an annular rotary knife blade including a body and a blade section extending axially from the body, the body including an axially spaced first upper and second lower end and a radially spaced inner and outer wall; the blade section extending from the lower end of the body; and the outer wall defining a knife blade support surface and a gear teeth assembly, the gear teeth assembly being axially spaced from the upper end of the body and axially spaced from the knife blade support surface .
[0011] In another aspect, the present disclosure refers to
Petition 870190003445, of 11/01/2019, p. 22/163
6/141 an energy-operated rotary knife comprising: a
assembly of gearbox including a housing box of gears and a gearbox; one accommodation blade attached to the box housing
gears; and an annular rotary knife blade including an upper end and a lower end
axially spaced, the lower end defining a
cutting edge of the blade, the knife blade still including
a wall defining a set of teeth gear, the gear teeth assembly being axially spaced from the top end of the blade of knife, the knife blade rotating on an axis
central with respect to the blade housing; the box
gears comprising a gear set including a gear pinion gear and a transmission gear, the gear pinion engaging and rotating the streaming and the transmission gear engaging and turning
the knife blade on the central axis; and the gear
streaming comprising a double gear including a
first gear engaging and being rotated by the pinion gear on a rotating shaft of the transmission gear and a second gear engaging the gear set
gear of the knife blade to rotate the knife blade
on the central axis, the first and second gear of the transmission gear being concentric with the rotary axis of the transmission gear.
[0012] In another aspect, the present disclosure refers to
a game of gear supported in a box housing gears of an energy-operated rotary knife to rotate one swiveling annular knife blade
Petition 870190003445, of 11/01/2019, p. 23/163
7/141 central, the gear set comprising: a pinion gear and transmission gear, characterized by the fact that the pinion gear engages and rotates the transmission gear and the transmission gear is configured to engage and rotate a blade ring rotary knife; and characterized by the fact that the transmission gear comprises a double gear including a first gear engaging and being rotated by the pinion gear on a rotary axis of the transmission gear and a second gear configured to engage an annular rotary knife blade, the first and the second gear of the transmission gear being concentric with the rotary axis of the transmission gear.
[0013] In another aspect, the present disclosure relates to an annular blade housing for an energy-operated rotary knife, the blade housing comprising: an inner wall and an outer wall, the inner wall defining a supporting surface of blade housing, the blade housing further including a cleaning port having an inlet and outlet opening, the outlet opening being on the inner wall and in fluid communication with a blade housing supporting surface.
[0014] In another aspect, the present disclosure relates to an energy operated rotary knife comprising: an annular rotary knife blade including a wall defining a knife blade support surface; an annular blade housing comprising an inner wall and an outer wall, the inner wall defining a blade housing supporting surface on the inner wall; a blade support structure - blade housing arranged between a
Petition 870190003445, of 11/01/2019, p. 24/163
8/141 knife blade support surface and a blade housing support surface, the blade support structure - blade housing supporting the knife blade for rotation with respect to the blade housing on a central blade blade axis Knife; and the blade housing further including a cleaning door extending radially between the inner wall and the outer wall, the cleaning door including an inlet and an outlet opening, the outlet opening being on the inner wall and in communication fluid with a blade housing support surface.
[0015] In another aspect, the present disclosure relates to an annular blade housing for an energy-operated rotary knife, the blade housing comprising: an inner wall and an outer wall, the inner wall defining a supporting surface of blade housing, the blade housing further including a blade housing plug opening extending between and through an inner wall and the outer wall, one end of the blade housing plug opening on the inner wall crossing a supporting surface blade housing plug to provide access to the blade housing supporting surface through the blade housing plug opening, and a blade housing plug configured to be releasably attached within the blade housing plug opening.
[0016] In another aspect, the present disclosure relates to an energy-operated rotary knife comprising: an annular rotary knife blade including a wall defining a knife blade support surface; an accommodation of
Petition 870190003445, of 11/01/2019, p. 25/163
9/141 annular blade comprising an inner wall and an outer wall, the inner wall defining a blade housing supporting surface; a blade support structure blade housing arranged between a knife blade support surface and a blade housing support surface, the blade support structure - blade housing supporting the knife blade for rotation with respect to the housing blade on a central axis of knife blade;
and characterized by the fact that the blade housing still includes a blade housing plug opening extending between and through an inner wall and the outer wall, one end of the blade housing plug opening on the inner wall crossing a surface blade housing support to provide access to the blade housing support surface through the blade housing plug opening, and a blade housing plug configured to be releasably attached within the blade housing plug opening .
In another aspect, the present disclosure relates to an annular blade housing comprising:
an inner wall and an outer wall, a section of the inner wall defining a blade housing support surface, a blade housing support surface being axially spaced from the opposing first and second ends of the inner wall, the housing of blade still including a projection on one of the first and second ends of the inner wall, the projection extending radially internally with respect to the section of the inner wall defining a support surface for the blade housing.
Petition 870190003445, of 11/01/2019, p. 26/163
10/141 [0018] In another aspect, the present disclosure relates to an energy operated rotary knife comprising: an annular rotary knife blade including a wall defining a knife blade support surface; an annular blade housing comprising an inner wall and an outer wall, the inner wall defining a blade housing supporting surface; a blade support structure blade housing arranged between a knife blade support surface and a blade housing support surface, the blade support structure - blade housing supporting the knife blade for rotation with respect to the housing blade on a central axis of knife blade; and characterized by the fact that the blade housing still includes a projection on one of the first and second ends of the inner wall, the projection extending radially internally with respect to the section of the inner wall defining a blade housing supporting surface.
[0019] In another aspect, the present disclosure relates to an undulating support strip for an energy operated rotary knife providing the rolling bearing for rotation of a rotating knife blade with respect to a blade housing, the undulating support comprising: a plurality of undulating bearings arranged in spaced relation; and a flexible separator cage for positioning the plurality of undulating bearings, the flexible separator cage including interconnected first and second ends, the first end of the separator cage including a wall defining a protruding member and the second end of the separator cage
Petition 870190003445, of 11/01/2019, p. 27/163
11/141 including a wall defining a receiving member, the first end protruding member and the second end receiving member being in relation to the opposite boundary and the first end protruding member extending on the second end receiving member to fix the first end to the second end and form a continuous ring.
[0020] In another aspect, the present disclosure relates to an undulating support strip for an energy operated rotary knife providing the rolling bearing for rotating a rotary knife blade with respect to an operated rotary knife blade housing by energy, the undulating support strip comprising: a plurality of undulating bearings disposed in spaced relation; a flexible separator cage for positioning the plurality of undulating bearings, the flexible separator cage including interconnected first and second ends, the first end of the separator cage including a wall having a projection extending transversely from the wall and the second end of the separator cage including a wall defining a slot extending radially in the wall, the first end wall and second end wall being in relation to the opposite boundary and the first end wall projection extending into the second end wall slot to attach the first end to the second end and form a continuous ring.
[0021] In another aspect, the present disclosure relates to an annular blade housing for an energy-operated rotary knife, the blade housing comprising: a wall
Petition 870190003445, of 11/01/2019, p. 28/163
12/141 inner and outer wall, the inner wall defining a blade housing support surface, the blade housing further including a blade housing plug opening extending between and through an inner wall and outer wall, one end of the blade housing plug opening on the inner wall crossing a blade housing supporting surface to provide access to the blade housing supporting surface through the blade housing plug opening, and a blade housing plug being on the axis coupled to the blade housing and classified to at least partially fit within the blade housing plug opening.
Brief description of the drawings [0022] The above and other features and advantages of the present disclosure will become apparent to one of skill in the technique to which the present disclosure relates upon consideration of the following description of the disclosure with reference to the accompanying drawings that similar reference numerals, unless otherwise described, refer to similar parts throughout the drawings and where:
[0023] Figure 1 is a schematic front perspective view of a first exemplary embodiment of an energy operated rotary knife of the present disclosure including a head assembly, a cable assembly and a drive mechanism, the head assembly including a gearbox assembly, an annular rotary knife blade, a blade housing, and a blade holder - blade housing or support structure and cable assembly
Petition 870190003445, of 11/01/2019, p. 29/163
13/141 including a handpiece and a handpiece retaining assembly;
[0024] Figure 2 is a schematic exploded perspective view of the energy operated rotating knife of Figure 1;
[0025] Figure 2A is a schematic exploded perspective view of a portion of the energy operated rotary knife head assembly of Figure 1 including the rotary knife blade, the blade housing and the blade support structure - housing blade that, in an exemplary embodiment, includes an elongated undulating support strip that securely and rotatively supports the blade of the rotary knife with respect to the blade housing;
[0026] Figure 2B is a schematic exploded perspective view of the handle assembly of the energy operated rotary knife of Figure 1 including the handpiece, the handpiece retaining assembly and a drive shaft hitch assembly supported by the assembly. manual part retention;
[0027] Figure 2C is a schematic exploded perspective view of a portion of the energy operated rotary knife head assembly of Figure 1 including the gearbox assembly, a steel assembly and a frame body, the assembly of gear box including a gear box and a gear box housing;
[0028] Figure 3 is a schematic top plan view of the energy operated rotary knife of Figure 1;
[0029] Figure 4 is a schematic bottom plan view of the energy operated rotary knife of Figure 1;
[0030] Figure 5 is a schematic front elevation view of the energy operated rotating knife of Figure 1;
Petition 870190003445, of 11/01/2019, p. 30/163
14/141 [0031] Figure 6 is a schematic rear elevation view of the energy operated rotary knife in Figure 1;
[0032] Figure 7 is a schematic right side elevation view of the energy operated rotary knife of Figure 1, as seen from a front end or blade of the energy operated rotary knife;
[0033] Figure 8 is a schematic section view taken along a longitudinal axis of the handle assembly of the energy operated rotating knife of Figure 1, as seen from a plane indicated by line 8-8 in Figure 3;
[0034] Figure 8A is a schematic enlarged section view of a portion of the cable assembly shown in Figure 8 that is within a dotted circle labeled Fig. 8A in Figure 8;
[0035] Figure 9 is a schematic perspective section view along the longitudinal axis of the handle assembly of the energy operated rotary knife of Figure 1, as seen from a plane indicated by line 8-8 in Figure 3:
[0036] Figure 10 is a schematic top plan view of an assembled combination of the rotary knife blade, the blade housing and the blade support structure the energy operated rotary knife blade housing of Figure 1;
[0037] Figure 11 is a schematic rear elevation view of the assembled combination of the rotating knife blade, blade housing and blade support structure. Figure 10 blade housing, as seen from a plane indicated by line 11- 11 in Figure 10, with a blade housing plug removed from the
Petition 870190003445, of 11/01/2019, p. 31/163
15/141 blade;
[0038] Figure 12 is a schematic side elevation view of the assembled combination of the rotating knife blade, blade housing and blade support structure, the blade housing of Figure 10, as seen from a plane indicated by line 12- 12 in Figure 10, with a blade housing plug removed from the blade housing;
[0039] Figure 13 is an enlarged schematic section view of the assembled combination of the rotary knife blade, the blade housing and the blade support structure of the energy operated rotating knife blade housing of Figure 1 as seen from a plane indicated by line 13-13 in Figure 10;
[0040] Figure 14 is a schematic perspective view of the elongated undulating support strip of the blade support structure - blade housing of the energy operated rotary knife of Figure 1;
[0041] Figure 15 is a schematic section view of the undulating support strip of Figure 14 obtained transverse to a longitudinal axis of the strip, as seen from a plane indicated by line 15-15 in Figure 14, to show a view in schematic section of an elongated separator cage of the undulating support strip in a position where no undulating bearing is located;
[0042] Figure 16 is a schematic top plan view of a short portion of the undulating support strip of Figure 14 obtained along the longitudinal axis of the strip, as seen from a plane indicated by line 16-16 in Figure 14, to show a schematic top plan view of the cage
Petition 870190003445, of 11/01/2019, p. 32/163
16/141 of elongated separator of the undulating support strip in a position where an undulating bearing is located;
[0043] Figure 17 is a schematic section view of the short portion of the wavy support strip of Figure 14, as seen from a plane indicated by line 17-17 in Figure 14, with the wavy bearing removed to show a view in schematic section of an elongated separator cage pocket;
[0044] Figure 18 is a schematic perspective view of a method of releasing the rotating knife blade reliably to the blade housing using the blade support structure - blade housing on the energy-operated rotating knife of Figure 1, showing the alignment of the elongated undulating support strip with a defined annular passage between the blade of the rotary knife and the blade housing;
[0045] Figure 19 is a schematic section view of a method of releasing the rotating knife blade reliably to the blade housing using the blade support structure blade housing on the energy operated rotating knife of Figure 1 , showing partial insertion of the elongated undulating support strip in the annular passage between the blade of the rotating knife and the blade housing;
Figure 20 is a schematic section view of a method of releasing the rotating knife blade reliably to the blade housing using the blade support structure - blade housing on the energy operated rotating knife of Figure 1, showing the completion of the insertion of the elongated undulating support strip in the
Petition 870190003445, of 11/01/2019, p. 33/163
17/141 annular passage between the knife blade and the blade housing;
[0047] Figure 21 is a schematic section view of a method of releasing the rotating knife blade reliably to the blade housing using the blade support structure - blade housing on the energy-operated rotating knife of Figure 1, showing attachment of the blade housing plug to the blade housing after the insertion of the elongated undulating support strip in the annular passage between the knife blade and the blade housing;
[0048] Figure 22 is an enlarged schematic top plan view of a portion of the annular rotary knife blade of the energy operated rotary knife of Figure 1;
[0049] Figure 23 is the schematic enlarged bottom plan view of the portion of the annular rotary knife blade of Figure 22;
[0050] Figure 24 is a schematic section view of the annular rotary knife blade in Figure 22, as seen from a plane indicated by line 24-24 in Figure 22;
[0051] Figure 25 is a schematic top plan view of the blade housing of the energy operated rotary knife of Figure 1;
[0052] Figure 26 is a schematic bottom plan view of the blade housing of Figure 25;
[0053] Figure 27 is a schematic right side elevation view of the blade housing of Figure 25;
[0054] Figure 28 is a schematic rear elevation view of the blade housing in Figure 25 showing a one-section blade housing plug opening
Petition 870190003445, of 11/01/2019, p. 34/163
18/141 mounting of the blade housing;
[0055] Figure 29 is a schematic section view of the blade housing in Figure 25 as seen from a plane indicated by line 29-29 in Figure 25;
[0056] Figure 29A is an enlarged schematic section view of a portion of the blade housing of Figure 25 that is within a dotted circle labeled Fig. 29A in Figure 29;
[0057] Figure 30 is a schematic top plan view of the blade housing plug that is removably attached to the blade housing of Figure 25;
[0058] Figure 31 is a schematic front elevation view of the blade housing plug of Figure 30 as seen from a plane indicated by line 31-31 in Figure 30;
[0059] Figure 32 is a schematic left side elevation view of the blade housing plug of Figure 30 as seen from a plane indicated by line 32-32 in Figure 30;
[0060] Figure 33 is a schematic front perspective view of the gearbox assembly of the energy operated rotary knife of Figure 1;
[0061] Figure 34 is a schematic top plan view of the gearbox assembly of Figure 33;
[0062] Figure 35 is a schematic bottom plan view of the gearbox assembly of Figure 33;
[0063] Figure 36 is a schematic front elevation view of the gearbox assembly of Figure 33;
[0064] Figure 37 is a schematic rear elevation view of the gearbox assembly of Figure 33;
Petition 870190003445, of 11/01/2019, p. 35/163
19/141 [0065] Figure 38 is a schematic right side elevation view of the gearbox assembly of Figure 33;
[0066] Figure 39 is a schematic longitudinal section view of the gearbox assembly of Figure 33, as seen from a plane indicated by line 39-39 in Figure 36;
[0067] Figure 40 is a schematic longitudinal perspective section view of the gearbox assembly of Figure 33, as seen from a plane indicated by line 39-39 in Figure 36;
[0068] Figure 41 is a schematic exploded perspective view of the gearbox assembly of Figure 33;
[0069] Figure 42 is a schematic exploded side elevation view of the gearbox assembly of Figure 33;
[0070] Figure 43 is a schematic exploded front elevation view of the gearbox assembly of Figure 33;
[0071] Figure 44 is a schematic exploded top plan view of the gearbox assembly of Figure 33;
[0072] Figure 45 is a schematic exploded rear view in perspective of the head assembly of the energy operated rotary knife of Figure 1 showing the gearbox assembly, the frame body and the mounted blade combination, blade housing and blade support structure - blade housing;
[0073] Figure 46 is a schematic rear elevation view of the gearbox housing of the power operated rotary knife gearbox assembly of Figure 1;
Petition 870190003445, of 11/01/2019, p. 36/163
20/141 [0074] Figure 47 is a schematic front bottom perspective view of the gearbox housing of Figure 46;
[0075] Figure 48 is a schematic longitudinal section view of the gearbox housing of Figure 46, as seen from a plane indicated by line 48-48 in Figure 46;
[0076] Figure 49 is a schematic rear perspective view of the frame body of the energy-operated rotary knife head assembly of Figure 1;
[0077] Figure 50 is a schematic rear elevation view of the frame body of Figure 49;
[0078] Figure 51 is a schematic bottom plan view of the frame body of Figure 49;
[0079] Figure 52 is a schematic front elevation view of the frame body of Figure 49;
[0080] Figure 53 is a schematic exploded side elevation view of the drive mechanism of the energy-operated rotary knife of Figure 1 extending from a drive motor external to the energy-operated rotary knife to the blade of the rotary knife of rotary knife operated by energy;
[0081] Figure 54 is a schematic view, partly in side elevation and partly in section, illustrating the use of the energy operated rotary knife in Figure 1 to trim a layer of material from a product using the blade of the rotary style knife. “Level blade, shown, for example, in Figure 24;
[0082] Figure 55 is a schematic enlarged view, partly in side elevation and partly in section,
Petition 870190003445, of 11/01/2019, p. 37/163
21/141 illustrating the use of the energy operated rotary knife in Figure 1 to trim a layer of material from a product using the “level blade;
[0083] Figure 56 is a schematic section view of a “hook blade style rotary knife blade and associated blade housing adapted for use in the energy operated rotary knife of Figure 1;
[0084] Figure 57 is a schematic section view of a
blade of rotating knife the “blade” style straight and accommodation associated in blade adapted to be used at operated rotary knife per energy of Figure 1; [0085] A Figure 58 is a schematic flowchart for one
method of fixing and rotatingly supporting the blade of the rotating knife with respect to the blade housing using the blade support structure - blade housing of the energy operated rotating knife of Figure 1;
[0086] Figure 59 is a schematic perspective view of a second exemplary embodiment of an elongated undulating support strip of the present disclosure suitable for use on the energy operated rotary knife of Figure 1, the elongated undulating support strip illustrated in a condition unlocked or open and including a flexible separator cage and a plurality of undulating bearings;
[0087] Figure 60 is another schematic perspective view of the elongated undulating support strip of Figure 59 illustrated in an unlocked or open condition;
[0088] Figure 61 is a schematic front elevation view of the elongated undulating support strip of Figure 59 illustrated in an unlocked or open condition, with the
Petition 870190003445, of 11/01/2019, p. 38/163
22/141 plurality of wavy bearings removed;
[0089] Figure 62 is a schematic top plan view of the elongated undulating support strip of Figure 59 illustrated in an unlocked or open condition, with the plurality of undulating bearings removed;
[0090] Figure 62A is a schematic enlarged perspective view of a portion of the elongated undulating support strip of Figure 59 that is within a dotted circle labeled Fig. 62A in Figure 62;
[0091] Figure 62B is an enlarged schematic perspective view of the portion of the elongated undulating support strip of Figure 62A;
[0092] Figure 62C is an enlarged schematic top plan view of a portion of the elongated undulating support strip of Figure 59 that is within a dotted circle labeled Fig. 62C in Figure 62;
[0093] Figure 62D is a schematic enlarged perspective view of the portion of the elongated undulating support strip of Figure 62C;
[0094] Figure 63 is a schematic perspective view of the elongated undulating support strip of Figure 59 illustrated in an unlocked annular condition, with the plurality of undulating bearings removed;
[0095] Figure 64 is another schematic perspective view of the elongated undulating support strip of Figure 59 illustrated in an unlocked annular condition, with the plurality of undulating bearings removed;
[0096] Figure 65 is a schematic front elevation view of the elongated undulating support strip of Figure 59 illustrated in an annular unlocked condition, with the
Petition 870190003445, of 11/01/2019, p. 39/163
Plurality of the wavy bearings removed;
[0097] Figure 66 is a schematic top plan view of the elongated undulating support strip of Figure 59 illustrated in an annular unlocked condition, with the plurality of undulating bearings removed;
[0098] Figure 67 is a schematic perspective view of the elongated undulating support strip of Figure 59 illustrated in a locked or continuous condition;
[0099] Figure 68 is another schematic perspective view of the elongated undulating support strip of Figure 59 illustrated in a locked or continuous condition;
[00100] Figure 69 is a schematic front elevation view of the elongated undulating support strip of Figure 59 illustrated in a locked or continuous condition;
[00101] Figure 70 is a schematic top plan view of the elongated undulating support strip of Figure 59 illustrated in a locked or continuous condition;
[00102] Figure 71 is a schematic sectional view of a portion of the elongated undulating support strip of Figure 59 as seen from a plane indicated by line 71-71 in Figure 70, with the plurality of undulating bearings removed;
[00103] Figure 72 is a schematic flowchart for a method of fixing and rotatingly supporting the blade of the rotary knife with respect to the blade housing using the blade support structure - blade housing of the energy-operated rotary knife of Figure 1 and the elongated undulating support strip of Figure 59;
[00104] Figure 73 is a schematic perspective view of a method of securely fixing
Petition 870190003445, of 11/01/2019, p. 40/163
24/141 the rotating knife blade can be released to the blade housing using the blade support structure - power operated rotary knife blade housing in Figure 1 and the elongated undulating support strip in Figure 59, showing the alignment of the elongated undulating support with a defined annular support passage between the blade of the rotary knife and the blade housing;
[00105] Figure 74 is a schematic section view of a method of releasing the rotating knife blade reliably to the blade housing using the blade support structure - blade housing of the energy-operated rotating knife of Figure 1 and the elongated undulating support strip of Figure 59, showing the partial insertion of the elongated undulating support strip in the annular support passage between the rotating knife blade and the blade housing;
[00106] Figure 75 is a schematic view of a method of securely releasing the rotary knife blade to the blade housing using the blade support structure - blade housing of the energy-operated rotating knife of Figure 1 and the elongated undulating support strip of Figure 59, showing the completion of the insertion of the elongated undulating support strip in the annular support passage between the knife blade and the blade housing; [00107] Figure 76 is a schematic section view of a method of releasing the rotating knife blade reliably to the blade housing using the blade support structure - blade housing of the energy-operated rotating knife of Figure 1 and the elongated undulating support strip of Figure 59, showing the interconnection of the
Petition 870190003445, of 11/01/2019, p. 41/163
25/141 first and second end portion of the undulating support strip to form a continuous annular support ring within the annular support passage between the knife blade and the blade housing.
[00108] Figure 77 is a schematic perspective view of a second exemplary embodiment of a blade housing of the present disclosure suitable for use on the energy operated rotary knife of Figure 1, the blade housing including a pivotable blade housing plug articulated, the blade housing plug shown in a closed position, the blade housing shown in an assembled combination of a rotary knife blade and blade support structure - the energy operated rotary knife blade housing of Figure 1;
[00109] Figure 78 is a schematic front elevation view of the blade housing in Figure 77 with the blade housing plug shown in the closed position, as seen from a plane indicated by line 78-78 in Figure 77, the blade housing shown in an assembled combination of a rotating knife blade and blade support structure - blade housing of the energy operated rotating knife of Figure 1;
[00110] Figure 79 is a schematic perspective view of the blade housing of Figure 77 with the blade housing plug shown in an open position, the blade housing shown in a mounted combination of a rotating knife blade and frame. blade support blade housing of the energy operated rotating knife of Figure 1;
[00111] Figure 80 is a front elevation view
Petition 870190003445, of 11/01/2019, p. 42/163
26/141 schematic of the blade housing in Figure 77, as seen from a plane indicated by line 80-80 in Figure 79 with the blade housing plug shown in the open position, the blade housing shown in a mounted combination of a rotating knife blade and blade support structure - blade housing of the energy operated rotating knife of Figure 1;
[00112] Figure 81 is a schematic front elevation view of the blade housing in Figure 77, with the blade housing plug removed;
[00113] Figure 82 is a schematic top plan view of the blade housing of Figure 77, as seen from a plane indicated by line 82-82 in Figure 81;
[00114] Figure 83 is a schematic horizontal section view of the blade housing in Figure 77, as seen from a plane indicated by line 83-83 in Figure 81;
[00115] Figure 83A is a schematic horizontal section view of the blade housing in Figure 77, with the blade housing plug in the closed position;
[00116] Figure 83B is a schematic horizontal section view of the blade housing of Figure 77, with the blade housing plug in the open position;
00117] Figure 84 is a schematic vertical section view of the view housing from a plane Figure 82;
[00118] Figure 85 is a schematic of the all-blade plug of Figure 77, as indicated by line 84-84 in the rear perspective view of the blade of the blade housing of Figure 77;
Petition 870190003445, of 11/01/2019, p. 43/163
27/141 [00119] Figure 86 is a schematic rear elevation view of the blade housing plug of Figure 85;
[00120] Figure 87 is a schematic top elevation view of the blade housing plug of Figure 85, as seen from a plane indicated by line 87-87 in Figure 86; and [00121] Figure 88 is a schematic vertical view of the blade housing plug of Figure 85, as seen from a plane indicated by line 88-88 in Figure 87.
Detailed Description
First exemplary achievement - 100 energy operated rotary knife
Overview [00122] The designers of energy-operated rotary knives are constantly challenged to improve the design of such knives in relation to multiple objectives. For example, there is a desire to increase the rotational speed of the rotary knife blade from an energy operated rotary knife. Generally, increasing the rotational speed of the blade reduces the operator effort required for cutting and trimming operations. There is also a desire to reduce the heat generated during the operation of the energy operated rotary knife. A source of the heat generated is the blade support interface - blade housing, that is, the heat generated at the support interface between the rotating knife blade and the fixed blade housing. Reducing the heat generated during the operation of the energy-operated rotary knife will tend to increase the service life of several knife components. Additionally, reduce the heat generated during the operation of the
Petition 870190003445, of 11/01/2019, p. 44/163
28/141 knife will tend to reduce “unwanted cooking of the product being cut or trimmed. If sufficient heat is generated in the blade support region of the rotating knife and blade housing, the dislodged parts or fragments of a product being cut or trimmed (eg, small parts or fragments of fat, cartilage or dislodged meat during trimming or cutting operations) in the vicinity of the support region can become so hot that the pieces “cook. The cooked materials tend to clog the blade and the support region of the blade housing resulting in even more undesirable heating.
[00123] There is still a desire to reduce the vibration of an energy-operated rotary knife during operation for the purposes of improved operator ergonomics and, consequently, improved operator productivity. There is also a desire to increase the service life of the components of an energy operated rotary knife. Areas of potential improvement include the design of the rotating knife blade, the blade housing, the blade support interface - blade housing or support structure that supports the knife blade for rotation in the blade housing, and the gear that rotates the blade of the rotary knife in the blade housing.
[00124] Many conventional energy operated rotary knives include a so-called split ring annular blade housing. A split ring or split annular blade housing is one that includes a split across a diameter of the blade housing. The split allows for the expansion of a circumference of the blade housing for the purpose of removing a blade from the rotating knife that needs
Petition 870190003445, of 11/01/2019, p. 45/163
29/141 be sharp or at the end of its useful life and insert a new rotary knife blade. A split ring blade housing has several inherent disadvantages.
Due to the split, a split ring blade housing is weaker than a blade housing without a split.
In addition, the split, which defines a discontinuity along the rotational path of the knife blade, is often a collection point for fragments of meat, fat, cartilage and / or bones that are created during a cutting or trimming operation. The accumulation of such a fragment or debris in the division region can generate heat and / or potentially result in increased vibration from the energy operated rotary knife, both of which are undesirable results.
[00125] Additionally, a split ring blade housing requires the operator to adjust the circumference of the blade housing as the blade of the rotating knife wears out. Considering the large loading forces applied to the blade when cutting and trimming the meat, wear will occur between the blade support structure and the corresponding support structure of the blade housing that supports the blade for rotation within the blade housing. In some energy operated rotary knives, the blade support structure - blade housing includes a portion of a radial outer surface of the rotating knife blade that serves as a blade support structure and a portion of a radial inner surface of the housing blade that serves as the matching or matched support structure of the blade housing. In such energy operated rotary knives, an outer radial surface of the blade and a corresponding inner radial surface of the
Petition 870190003445, of 11/01/2019, p. 46/163
30/141 blade will wear out over time resulting in a gradual detachment of the rotating knife blade inside the blade housing.
On certain energy operated rotary knives, the blade support structure blade housing comprises a cord extending internally from the blade housing that extends into a support groove formed on a radial outer surface of the rotating knife blade to support the blade for rotation in the blade housing.
Again, the blade support groove support cord of the blade housing will wear out over time resulting in the rotating knife blade being detached within the blade housing. As the blade of the rotary knife becomes looser within the blade housing, the energy operated rotary knife will typically experience increased vibration.
An inexperienced operator can simply accept increased vibration from the energy-operated rotary knife as a necessary part of using such a knife and will reduce his productivity when cutting or trimming at a slower pace, turning off the knife, taking additional time between cuts, etc.
An experienced operator can recognize that a potential solution to the increased vibration problem is to adjust, that is, to reduce the circumference of the blade housing,
i.e., reduce the effective diameter of the blade housing to account for blade wear and blade housing support interface. Such adjustment of the circumference of the blade housing is a trial and error technique that requires the operator to find adequate operating clearance. Operational slack can be seen as finding a balance
Petition 870190003445, of 11/01/2019, p. 47/163
31/141 suitable between providing sufficient blade support clearance blade housing, that is, having the blade housing support diameter sufficiently larger than the corresponding matched blade blade support diameter so that the knife blade freely rotates in the blade housing while, at the same time, not having much play which would cause the knife blade to overplay and / or vibrate in the blade housing.
[00128] However, even for an experienced operator adjusting the circumference of the blade housing can be problematic. If the operator fails to properly adjust the circumference of the blade housing, i.e., find an adequate operating clearance, the energy operated rotary knife may not function properly. If the operator's adjustment leads to insufficient operating clearance, the knife blade will not rotate freely in the blade housing, that is, the knife blade will tend to join in the blade housing thus generating heat and a tendency to increase the wear of the rotating knife blade, components of the blade housing and transmission gear, all unwanted results.
Depending on the degree of joining, the blade of the rotating knife may be stuck inside the housing. On the other hand, if the operator adjusts the circumference of the blade housing so that the operating clearance is very large, the knife blade will become loose in the blade housing. This can result in excessive knife blade movement within the blade housing and conductor problems from excessive vibration of the energy operated rotating knife during operation.
[00129] Furthermore, even if the operator is successful in adjusting the blade housing to a circumference
Petition 870190003445, of 11/01/2019, p. 48/163
32/141 acceptable, adjusting the circumference of the blade housing necessarily requires the operator to cease cutting / trimming operations with the energy operated rotary knife during the trial and error adjustment process. The adjustment process results in downtime and lost operator productivity. Finally, since the wear of the rotating knife blade and the blade housing support interface is in progress as the energy operated rotary knife continues to be used for cutting and trimming operations, adjusting the circumference of the blade housing undertaken by the operator is only a temporary correction as additional wear occurs.
[00130] The present disclosure relates to an energy-operated rotary knife that addresses many of the problems associated with conventional energy-operated rotary knives and design objectives of the energy-operated rotary knife. An exemplary embodiment of an energy operated rotary knife of the present disclosure is schematically shown generally at 100 in Figures 1-9. The energy operated rotary knife 100 comprises an elongated cable assembly 110 and a head assembly or head portion 111 removably coupled to an advanced end of the cable assembly 110. The cable assembly 110 includes a handpiece 200 which is attached to the head assembly 111 by a handpiece retention assembly 250.
[00131] In an exemplary embodiment, the head assembly 111 includes a continuous annular rotary knife blade generally ring-shaped 300, a continuous annular blade housing generally ring-shaped 400, and a blade holder - blade housing or structure of
Petition 870190003445, of 11/01/2019, p. 49/163
33/141 support 500. Cancel, as used herein, means generally ring-like or generally ring-shaped in configuration. Continuous ring, as used herein, means a ring-like or ring-like configuration that is continuous over the ring or circular crown, that is, the ring or circular crown does not include a split extending across a diameter of the ring or circular crown. Head assembly 111 further includes a gearbox assembly 112 and a frame or frame body 150 for attaching the rotary knife blade 300 and the blade housing 400 to the gearbox assembly 112.
[00132] The blade of the rotary knife 300 rotates in the blade housing 400 on a central axis of rotation R. In an exemplary embodiment, the blade of the rotary knife 300 includes a support surface 319 and a driven gear 328. Both the groove of support 319 and driven gear 328 are axially spaced from an upper end 306 of a body 302 of the blade 300 and the other. The rotary knife blade 300 is supported for rotation in the blade housing
400 per blade holder blade housing or support structure
500 of the present disclosure (best seen in Figures 2A blade support structure blade housing
500 advantageously supports both the rotary knife blade 300 for rotation with respect to the blade housing 400 and releasably attaches the rotary knife blade 300 to the blade housing 400.
[00133]
In an exemplary embodiment, the blade support structure - blade housing 500 includes an elongated undulating support strip 502 (Figure 14) having a plurality of spaced undulating bearings 506 supported in a cage.
Petition 870190003445, of 11/01/2019, p. 50/163
34/141 flexible separator 508. The elongated undulating support strip 502 is arranged in an annular passage 504 (Figure 13) formed between the opposing support surfaces 319, 459 of the rotary knife blade 300 and the blade housing 400, respectively. The blade support structure - blade housing 500 defines a plane of rotation RP (Figures 7 and 8) of the blade of the rotating knife 300 with respect to the blade housing 400, the rotating plane RP being substantially orthogonal to the central axis of the blade of the rotary rotary knife R.
[00134] In an exemplary embodiment, the plurality of the wavy bearings 506 comprises a plurality of the generally spherical bearings. The plurality of rolling bearings or housings 506 are in wavy contact and hold against the opposing supporting surfaces 319, 459 of the rotary knife blade 300 and the blade housing 400 to support the knife blade 300 for rotation with respect to the blade housing 400 and fix the knife blade 300 with respect to the blade housing 400. The rotating flexible separator cage 508 supports and locates the plurality of the wavy bearings 506 in spaced relation within the annular passage 504. The flexible separator cage 508 does not functions as a support structure or provides a support surface with respect to the blade of the rotating knife 300 and the blade housing 400. The function of rotatingly supporting the blade of the rotating knife 300 with respect to the blade housing 400 is exclusively provided by the corrugated roller bearing of the plurality of 506 spaced bearings. This corrugated roller bearing can be contrasted with energy-operated rotary knives
Petition 870190003445, of 11/01/2019, p. 51/163
35/141 using a sliding support structure. For example, Pat. USA No. 6,769,184 to Whited, discloses a sliding support structure comprising a blade housing having a plurality of circumferentially extending sections of radially spaced cord that extend and support against a supporting groove or groove of a knife blade US Order Published Pub. No. 2007/0283573 to Levsen, which reveals a sliding support structure comprising an annular bushing having an elongated bushing body arranged along a groove in a blade housing and in contact with the opposing support surfaces of a rotating knife blade and the blade housing.
[00135] As can be best seen in the sectional view of Figure 13, the flexible separator cage 508 is configured to travel in the annular passage 504 without substantial contact with knife blade 300 or blade housing 400 or opposite supporting surfaces 319, 459 of knife blade 300 and blade housing. In fact, it would not be desired for the flexible separator cage 508 to be in contact with or in support engagement with the rotary knife blade 300 or the blade housing 400 as this would result in undesirable sliding friction. The blade support structure blade housing 500 rotatively supports the knife blade 300 with respect to the blade housing 400 via the corrugated roller bearing provided by the plurality of bearings 506 of the corrugated support strip 502 supporting against the opposite surfaces of support 319, 459 of the rotary knife blade 300 and the blade housing 400.
[00136] The rotational speed of a specific blade of the
Petition 870190003445, of 11/01/2019, p. 52/163
36/141 rotary knife 300 on the energy operated rotary knife 100 will depend on the specific characteristics of a drive mechanism 600 (shown schematically in Figure 53) of the energy operated rotary knife 100, including an external drive motor 800, a drive assembly stem
flexible 700, a game in gear 604 and a diameter and gear gives blade gives Knife rotating 300 . Besides that, depending on gives assignment in cut or nib The to be fulfilled,
different sizes and styles of the rotating knife blades can be used in the 100 energy operated rotary knife of the present disclosure. For example, rotary knife blades in various diameters are typically offered ranging in size from about 1.4 inches in diameter to more than 7 inches in diameter. The selection of a blade diameter will depend on the task or tasks being performed.
[00137] Increasing the rotating speed of the rotary knife blade of an energy-operated rotary knife is an important goal for designers of energy-operated rotary knives. The undulating bearing structure of the blade support structure - blade housing 500 of the present disclosure results in reduced friction, less heat generated and less surface wear than would be the case with a sliding or lap support structure. Due to the reduced friction and heat resulting from an undulating bearing structure, the blade support structure - undulating blade housing 500 allows for the increased rotational speed of the rotary knife blade 300 compared to the sliding support structures revealed or used in the operated rotary knives previous energy.
Petition 870190003445, of 11/01/2019, p. 53/163
37/141 [00138] By way of example only and without limitation, the following table compares the blade rotational speed of the two energy-operated rotary knives of the present disclosure versus the previous transferee versions of those same models of the energy-operated rotary knives . Clearly, it must be appreciated that the increase in blade rotational speed will vary by model and will be dependent on the specific characteristics of each specific model and blade size.
Model Approximate Diameter % Speed Increase Blade Rotary Blade Approximate 1000/1500 5.0 inches 51% (930 RPM vs. 1,400 RPM) 620 2.0 inches 57% (1,400 RPM vs. 2,200 RPM)
[00139] There are also significant advantages when using the flexible separator cage 508 to support and locate the plurality of the wavy bearings 506, as opposed, for example, when using only a plurality of the wavy bearings, such as bearings, inserted in a gap or passage between the blade of the rotary knife and the blade housing. The flexible separator cage 508 facilitates the insertion and removal, as a group, of the plurality of corrugated bearings 506 in and from the annular passage 504. That is, it is much easier to insert the corrugated support strip 502 in the annular passage 504, as opposed to trying to insert individual undulating bearings into the annular passage 504 in sequential order one at a time, which would be time consuming and fraught with difficulty. This is especially true in a meat processing environment where a loose or lost undulating bearing could fall into a cut or trimmed meat product. Similarly, removing the plurality of 506 undulating bearings, as a group, via strip removal
Petition 870190003445, of 11/01/2019, p. 54/163
38/141 wavy support 502 is much easier and less likely to loosen or lose wavy bearings than individually removing wavy bearings from the annular passage
504.
[00140] Additionally, from the point of view of friction, the rolling bearing and cost, using plurality of the wavy bearings 506 supported in a spaced relationship predetermined by the flexible separator cage 508, is more efficient and effective than using a plurality of undulating bearings freely arranged in a gap or passage between the blade of the rotary knife and the blade housing. For example, separator cage 508 allows the plurality of corrugated bearings 506 to be adequately spaced to provide sufficient corrugated roller bearing to the blade of the rotary knife 300, considering the application and characteristics of the product or material to be cut or trimmed with the knife. energy operated rotary 100, while at the same time avoiding the need to have more undulating bearings than required for proper rotary knife blade bearing 500 and application being carried out with the 100 energy operated rotary knife.
[00141] For example, if the individual undulating bearings are tightly packed in a ratio of one adjacent to the next in annular passage 504, more undulating bearings than necessary for most applications would be provided, thus unnecessarily increasing the cost. In addition, having more undulating bearings than necessary would also increase the total friction, due to the friction between each pair of adjacent undulating bearings in contact. If, on the other hand, the individual undulating bearings are freely
Petition 870190003445, of 11/01/2019, p. 55/163
39/141 packed in ring passage 504, there is no contract on the spacing between adjacent undulating bearings. Thus, there may be instances where a large gap or space may occur between two adjacent undulating bearings resulting in insufficient bearing in a specific region of the annular passage 504, considering the cutting forces being applied to the rotating knife blade 300 during an application or specific cutting or trimming operation.
[00142] As can be better seen in Figure 2, an assembled combination 550 of the rotary knife blade 300, the blade housing 400 and blade support structure blade housing 500 is releasably fixed as a unitary structure to the assembly of gearbox 112 by the frame body 150 thus completing the head assembly 111. For brevity, the assembled combination 550 of the rotary knife blade 300, the blade housing 400 and blade support structure - blade housing 500 will hereinafter be referred to as the combination of blade housing blade 550. The cable assembly 110 is releasably attached to the head assembly 111 thus completing the energy operated rotary knife 100. As used herein, a front or distal end of the energy operated rotary knife 100 is an end of knife 100 that includes the blade combination - blade housing 550 (as seen in Figure 1), while an extreme rear or proximal end of the energy operated rotary knife 100 is an end of the knife 100 that includes the handle assembly 110, and specifically, an enlarged end 260 of an elongated center core 252 of the handpiece retaining assembly
Petition 870190003445, of 11/01/2019, p. 56/163
40/141
250 (as seen in Figure 1).
[00143] Head assembly 111 includes frame 150 and gearbox assembly 112. As best seen in Figure 2C and 33, gearbox assembly 112 includes gearbox housing 113 and a gearbox gears 602. Gearbox 602 is supported by gearbox housing 113. Gearbox 602 includes gear set 604 (Figure 41). The gear set 604 includes, in an exemplary embodiment, a pinion gear 610 and a transmission gear 650. Gear box 602 includes gear set 604, along with a rolling bearing assembly 630 that rotates the pinion gear 610 and a bearing housing 660 that rotatively supports the transmission gear 650.
[00144] The transmission gear 650 is a double gear that includes a first bevel gear 652 and a second spur gear 654, arranged in a stacked relationship, on a DGR rotation axis (Figure 8A) of the transmission gear 650. The shaft of the DRG rotation transmission gear is substantially parallel to the blade axis of the rotating knife of rotation R. The first bevel gear of transmission gear 652 joins with pinion gear 610 to rotate drive transmission gear 650 on the transmission gear shaft of the DGR rotation. The second spur gear 654 of the transmission gear engages the driven gear 328 of the rotary knife blade 300, forming a wraparound gear drive, to rotate the knife blade 300 about the axis of the rotation blade R.
Petition 870190003445, of 11/01/2019, p. 57/163
41/141 [00145]
The gear set 604 is part of the drive mechanism 600 (shown schematically in Figure 53), some of which is external to the energy operated rotary knife 100, which provides motivating energy to rotate the blade of the rotary knife 300 with respect to the housing. blade 400.
The drive mechanism 600 includes the external drive motor 800 and the flexible rod drive assembly 700, which is releasably attached to the cable assembly 110 by a drive shaft hitch assembly 275 (Figure 2B). The gear set 604 of the energy operated rotary knife 100 transmits the rotary energy from a rotary drive shaft 702 of the flexible rod drive assembly 700, through the pinion and transmission gears 610, 650, to rotate the blade of the rotating knife 300 with respect to blade housing 400.
[00146] The frame body 150 (Figures 2C and 49) of the head assembly 111 includes an arched mounting pedestal 152 at a front or forward end of the frame body 150. The arched mounting pedestal 152 defines a seating region 152a for a mounting section 402 of the blade housing 400 so that the blade housing combination 550 can be releasably attached to the frame body 150. The frame body 150 also defines a cavity or opening 155 (Figure 49) slidingly receives the gearbox housing 113, as the gearbox housing is moved in an advanced direction FW (Figures 3, 7 and 45) along the longitudinal axis LA towards the frame body 150. When gearbox housing 113 is fully inserted into frame cavity 155 and attached to frame body 150
Petition 870190003445, of 11/01/2019, p. 58/163
42/141 by a pair of threaded fasteners 192, as shown schematically in Figure 53, the transmission gear 650 of the gear set 604 engages and joins the driven gear 328 of the rotary knife blade 300 to rotate the blade 300 over its axis of rotation R.
[00147] The frame body 150 releasably couples the blade-blade housing combination 550 to the gearbox housing 113 to form the head assembly 111 of the energy operated rotary knife 100.
Handpiece 200 of cable assembly 110 is attached or mounted to head assembly 111 by handpiece retainer assembly 250 (Figure 2B) to complete the energy operated rotary knife 100. The elongated center core 252 of the handhold assembly handpiece 250 extends through a central central hole 202 of handpiece 200 and threads into gearbox housing 113 to secure handpiece 200 to gearbox housing 113.
[00148] The cable assembly 110 (Figure 2B) extends along a longitudinal axis LA (Figures 3, 7 and 8) that is substantially orthogonal to the central axis of rotation R of the rotating knife blade 300. The handpiece 200 includes an inner surface 201 that defines the central full hole 202, which extends along the longitudinal axis of the LA cable assembly. Handpiece 200 includes an external contoured handle or external clamping surface 204 which is gripped by an operator to properly handle the energy operated rotary knife 100 for trimming and cutting operations.
[00149] In an exemplary embodiment, handpiece 200 and elongated center core 252 of cable assembly 110 can be made of plastic or other material or materials
Petition 870190003445, of 11/01/2019, p. 59/163
43/141 known to have comparable properties and can be formed by molding and / or machining. Handpiece 200, for example, can be made of two or more molded plastic layers, an inner layer comprising a rigid plastic material and an outer layer or clamping surface comprised of a more flexible resilient plastic material that is more malleable and easier to pick up for the operator. The gearbox housing 113 and the frame body 150 of the head assembly 111 can be made of aluminum or stainless steel or other material or materials known to have comparable properties and can be formed / shaped by casting and / or machining. The blade and blade housing 400 can be manufactured from a degree of hardness of alloy steel or a degree of hardness of stainless steel, or other material or materials known to have comparable properties and can be formed / shaped by machining, forming, casting , forging, extrusion, metal injection molding and / or electrical discharge machining or other suitable process or combination of processes.
Rotating knife blade 300 [00150] In an exemplary embodiment and as best seen in Figures 2A and 22-24, the rotating knife blade 300 of the energy operated rotating knife 100 is a single piece continuous annular structure. As best seen in Figure 24, the rotary knife blade 300 includes body 302 and a blade section 304 extending axially from body 302. The knife blade body 302 includes an upper end 306 and an end bottom 308 axially spaced from the top end 306. The
Petition 870190003445, of 11/01/2019, p. 60/163
44/141 rotary knife blade body 302 further includes an inner wall 310 and an outer wall 312 radially spaced from the inner wall 310. A substantially vertical upper portion 340 of the outer wall of body 312 defines the blade support surface 319 knife.
In an exemplary embodiment of the energy operated rotary knife 100 and as best seen in Figures 13 and 24, the knife blade support surface 319 comprises the support groove 320 that extends radially internally to the outer wall 312. In an exemplary embodiment , the knife blade support groove 320 defines a generally concave support surface, and, more specifically, a generally arched support face 322 in a central portion 324 of the support groove 320. As can be seen in Figure 24, the knife blade support groove 320 is axially spaced from an upper end 306 of knife blade body 302. Specifically, a section 341 of the vertical portion
340 of the outer wall of the body 312 extends between the knife blade support groove 320 and the upper end 306 of the knife blade body 302. Stated otherwise, the outer wall of the knife blade body 213 includes the vertical section 341 that separates the knife blade support groove 320 from the upper end 306 of the knife blade body 302. When viewed in three dimensions, the vertical section
341 defines a cylindrical portion of uniform diameter of the outer wall of the knife blade body 312 that separates the knife blade support groove 320 from the upper end 306 of the knife blade body 302.
[00151] The outer wall 312 of the body 302 of the rotating knife blade 300 also defines the driven gear 328. The
Petition 870190003445, of 11/01/2019, p. 61/163
45/141 driven gear 328 comprises a set of spur gear teeth 330 extending radially externally in a staggered portion 331 of outer wall 312. Blade gear 330 is a spur gear which means it is a cylindrical gear with a set of gear teeth 328 which is parallel to the gear axis, ie, parallel to the axis of rotation R of the rotary knife blade 300 and a profile of each gear tooth of the gear teeth assembly 328 includes a radially external tip or surface 330a ( Figure 13) and a radially internal root or surface 330b. The cog root 330b is sometimes referred to as a lower area, while the cog tip 330a is sometimes referred to as an upper area. The root 330b is radially closer to the axis of rotation R of the blade 300, the root 330a and the tip 330a are radially spaced by a working depth plus the clearance of a gear tooth from the gear tooth assembly 330. The driven gear 328 of the rotary knife blade 300 is axially spaced and disposed below the support groove 320, that is, closer to the second lower end 308 of the knife blade body 302. The outer wall of the knife blade body 312 includes a portion vertical 340 separating the gear teeth assembly 330 from the upper end 306 of the knife blade body 302. When viewed in three dimensions, a vertical portion 340 defines a cylindrical portion in diameter
uniform of external wall of the body in blade in Knife 213 what separates the support groove in blade in Knife 320 starting gives far end superior 306 of body in blade in Knife 302 . THE gear triggered 328, in an achievement exemplary, defines
Petition 870190003445, of 11/01/2019, p. 62/163
46/141 a plurality of the spur gear teeth 332. [00152] The spur gear assembly 330 of the knife blade driven gear 328 is axially spaced from both the upper end 306 of the body 302 and the lower end 308 of the body 302 and is axially spaced from the arched support groove 320 of body 302. Additionally, driven gear 328 is also radially offset internally with respect to the upper vertical portion 340 of the outer wall of body 312 which defines the blade support groove 320. Specifically, the spur gear set 330 is arranged radially internally from an outermost extension 343 of the outer wall 312 of the knife blade body 302. As can be seen in Figures 13 and 24, an upper vertical portion 340 of the outer wall of body 312 defines the outermost extension 343 of outer wall 312. Correspondingly, an upper vertical portion 340 of the foot the outer web 312 extends radially externally over the gear tooth assembly 330 and forms a gear tooth cover 349. The gear tooth cover 349 is axially spaced and overlaps the gear tooth assembly 330 and works to further protect the gear teeth assembly 330.
[00153] This rotary knife blade configuration 300, characterized by the fact that the set of gear teeth 330 is both axially spaced from the upper end 306 of the knife blade body 302 and internally offset from the outermost extension 343 of the outer wall of the blade body 312 is sometimes referred to as a “blind cog” configuration. Advantageously, the driven gear 328
Petition 870190003445, of 11/01/2019, p. 63/163
47/141 of the rotary knife blade 300 of the present disclosure is in a relatively protected position with respect to the knife blade body 302. That is, the driven gear 328 is in a position in the knife blade body 302 where it is least likely damage to the set of gear teeth 330 when handling the blade of the rotary knife 300 and, during the operation of the rotary knife operated by energy 100, there is less ingress of the remains, such as small pieces of fat, meat, bone and cartilage generated during cutting and trimming operations in the region of the gear teeth.
[00154] Conceptually, the respective gear tips or radially external surfaces 330a of the gear teeth assembly 330, when the knife blade 300 is rotated, can be seen as forming a first imaginary cylinder 336 (shown schematically in Figure 24 ). Similarly, the respective radially internal roots or surfaces 330b of the gear teeth assembly 330, when the knife blade 300 is rotated, can be seen to form a second imaginary cylinder 337. A short portion extending radially or horizontally 342 the outer wall 312 of the blade body 302 extends between the radially outer surfaces 330a of the driven gear 328 and an upper vertical portion 340 of the outer wall 312 of the blade body. A second substantially vertical lower portion 344 of the outer wall 312 of the blade body 302 extends between a bottom surface 345 of the driven gear 328 and the lower end 308 of the blade body. As can be seen in Figure 24, a lower vertical portion 344 of the knife blade body
Petition 870190003445, of 11/01/2019, p. 64/163
48/141
302 results in a projection extending radially 348 adjacent to the lower end 308 of the blade body 302.
[00155] The axial spacing of the transmission gear 328 from the upper end 306 of the knife blade body 302 advantageously protects the set of gear teeth 330 from damage that it would otherwise be exposed to, as is the case with the conventional blades of the rotary knife, the set of gear teeth 330 is positioned at the upper end 306 of the blade body 302 of the blade of the rotary knife 300. Additionally, the debris is generated by the rotary knife operated by energy 100 during cutting operations / nib. The debris generated includes the pieces or fragments of bone, cartilage, meat and / or fat that are dislodged or broken from the product being cut or trimmed by the 100 energy operated rotary knife. The debris can also include foreign material, such as dirt , dust and the like, in or near a cutting region of the product being cut or trimmed. Advantageously, the spacing of the gear teeth assembly 330 from both axial ends 306, 308 of the knife blade body 302, prevents or mitigates the migration of such debris to the region of the knife blade driven gear 328. The debris in the region knife blade driven gear 328 can cause or contribute to numerous problems, including blade vibration, premature wear of driven gear 328 or matched transmission gear 650, and cooking of debris.
[00156] Similar advantages exist with respect to the axial spacing of the blade support groove 320 of the upper and lower ends 306, 308 of the blade body
Petition 870190003445, of 11/01/2019, p. 65/163
49/141
302. As explained below, the blade body of the rotating knife 302 and the blade housing 400 are configured to provide radially extending projections or covers that provide a type of labyrinth seal to inhibit the entry of debris into regions of the 328 knife blade driven gear and blade support structure - 500 blade housing. These labyrinth seal structures are facilitated by the axial spacing of the 328 knife blade transmission gear and the groove
of support blade 320 from the upper and lower ends bottom 306, 308 blade body 302 gives blade of the knife rotating 300. [00157] According can be better seen at Figure 24, on rotary knife blade 300, the second far end 308 of
knife blade body 302 changes radially internally between body 302 and blade section 304. The second end 308 of body 302 is defined by a step or recess extending radially internally 308a. The blade section 304 extends from the second end 308 of the body 302 and includes a blade cutting edge 350 at an inner lower end 352 of the blade section 304. As can be seen, the blade section 304 includes a wall inner 354 and a radially spaced outer wall 356. The inner and outer walls 354, 356 are substantially parallel. A bridge portion 358 at the forward end of the rotary knife blade 300 extends between the inner and outer walls 354, 356 and forms the cutting edge 350 at the intersection of the bridge portion 358 and inner wall 354. Depending on the specific configuration of the blade section 304, the bridge portion 358 can extend
Petition 870190003445, of 11/01/2019, p. 66/163
50/141 generally radially or horizontally between the inner and outer walls 354, 356 or can taper at an angle between the inner and outer walls 354, 356.
[00158] The inner wall of the rotating knife blade body 310 and the inner wall of blade section 354 together form an inner wall of the substantially continuous knife blade 360 that extends from the upper end 306 to the cutting edge 350. As may be To be seen in Figure 24, there is a hump region slightly protruding internally 346 from the inner wall 310 of the blade body 302 in the region of the support groove 320. The protruding region 346 provides an increased width or thickness of the blade body 302 in the region where the support groove 320 extends radially internally in the outer wall of the blade body 312. The inner wall of the knife blade 360 is generally frustro-conical in shape, converging in a declining direction (labeled DW in Figure 24), that is , in a direction proceeding away from driven gear 328 and towards cutting edge 350. The inner wall of knife blade 360 defines an opening of CO cut (Figures 1 and 54) of the energy operated rotating knife 100, that is, the opening defined by the rotating knife blade 300 that the material
cut, such like, a layer of cut CL1 (Figure 54), passes, according to the rotary knife operated per energy 100 trim or cut a P product.Accommodation blade 400[00159] On an exemplary achievement and according best visa in the Figures 25-29, housing in blade 400 of Knife
energy operated rotary 100 is a single piece continuous annular structure. Blade housing 400 includes the
Petition 870190003445, of 11/01/2019, p. 67/163
51/141 mounting section 402 and a blade support section 450. Blade housing 400 is continuous over its perimeter, that is, different from previous split ring annular blade housings, blade housing 400 of the present disclosure it has no division along a diameter of the housing to allow expansion of the circumference of the blade housing. The blade support or support structure - blade housing 500 of the present disclosure secures the blade of the rotating knife 300 to the blade housing 400. Correspondingly, removal of the knife blade 300 from the blade housing 400 is accomplished by removing a portion of the blade structure - blade housing 500 from the energy operated rotary knife 100. The blade support structure - blade housing 500 allows the use of the continuous annular blade housing 400, as there is no need to expand the circumference of the blade housing to remove the blade from the rotary knife 300 from the blade housing 400.
[00160] The continuous annular blade housing 400 of the present disclosure provides numerous advantages over previous split ring annular blade housings. The continuous single-piece annular structure provides greater strength and durability of blade housing 400, as compared to previous split ring annular blade housings. In addition to the increased strength and durability of the blade housing 400, the fact that a circumference of the blade housing 400 is not adjustable, eliminates the need and prevents the operator from adjusting the circumference of the blade housing 400 during the operation of the operated rotary knife by 100 energy in an attempt to
Petition 870190003445, of 11/01/2019, p. 68/163
52/141 maintain adequate operating clearance. This is a significant improvement over previous annular split ring blade housings. Advantageously, the combination of the rotary knife blade 300, the blade housing 400 and the blade support structure - blade housing 500 of the energy-operated rotary knife 100 provide adequate operating clearance of the rotary knife blade 300 with respect to the housing blade 400 over the useful life of a particular rotary knife blade.
[00161] As can be best seen in Figure 25, in the blade housing 400, the blade support section extends over the entire 360 ° (360 degrees) circumference of the blade housing 400. The mounting section 402 extends it is radially externally from the blade support section 450 and subtends at an angle of approximately 120 °. Stated differently, the blade housing assembly section 402 extends approximately 1/3 of the path around the circumference of the blade housing 400. In the region of the mounting section 402, the mounting section 402 and the 450 blade holder overlap.
[00162] Mounting section 402 is both axially thicker and radially wider than blade support section 450. Blade housing mounting section 402 includes an inner wall 404 and a radially spaced outer wall 406 and a first upper end 408 and a second axially spaced second lower end 410. At the forward ends 412, 414 of the mounting section 402, there are tapered regions 416, 418 that change between the upper end 408, lower end 410 and outer wall 406 of the mounting section and upper end
Petition 870190003445, of 11/01/2019, p. 69/163
Corresponding 53/141, lower end and outer wall of the blade support section 450.
[00163] The blade housing assembly section 402 includes two mounting inserts 420, 422 (Figure 2A) that extend between the upper and lower ends 408, 410 of the mounting section 402. The mounting inserts 420, 422 define the threaded openings 420a, 422a. The blade housing assembly section 402 is received in the seat region 152a defined by the arched mounting pedestal 152 of the frame body 150 and is attached to the frame body 150 by a pair of threaded fasteners 170, 172 (Figure 2C).
Specifically, the pair of threaded fasteners 170,172 extends through the threaded openings 160a, 162a defined in a pair of arcuate arms 160, 162 of the frame body 150 and threaded into the threaded openings 420a, 422a of the mounting inserts of the housing blade 420.422 for releasably securing blade housing 400 to frame body 150 and thereby coupling blade housing 400 to gearbox assembly 112 of head assembly 111.
[00164] The mounting section 402 further includes a gear recess 424 (Figures 25 and 28) that extends radially between the inner and outer walls 404, 406. Gear recess 424 includes an upper clearance recess 426 that does not extends the entire length to the inner wall and a wider lower opening 428 that extends between and through the inner and outer walls 404, 406. The upper clearance recess 426 provides the clearance for the pinion gear 610 and the first bevel gear axially oriented gearbox transmission gear 652
Petition 870190003445, of 11/01/2019, p. 70/163
54/141 gears 650. The lower opening 428 is classified to receive the second spur gear extending radially 654 from the transmission gear of the gear box 650 and thus provide the interface or union of the second spur gear 654 and driven gear 328 of the blade rotary knife 300 to rotate knife blade 300 with respect to blade housing 400.
[00165] The mounting section 402 of the blade housing 400 also includes a blade housing plug opening 429 extending between the inner and outer walls 404, 406. The blade housing plug opening 429 is generally in shape oval in cross section and is classified to receive a 430 blade housing plug (Figures 30-32). The blade housing plug 430 is removably attached to the blade housing 400 by two screws 432 (Figure 2A). The screws 432 pass through a pair of countersunk openings 434 that extend from the upper end 408 of the mounting section 402 to the lower portion 428 of the gear recess 424 and threadably engage a pair of aligned threaded openings 438 of the blade housing plug 430.
[00166] As can best be seen in Figure 29A, the blade support section 450 includes an inner wall 452 and a radially spaced outer wall 454 and a first upper end 456 and a second lower end axially spaced 458. The support section of blade 450 extends over the entire 360 ° circumference of blade housing 400. Blade support section 450 in a region of mounting section 402 is continuous and forms a portion of the inner wall 404 of mounting section 402. As can
Petition 870190003445, of 11/01/2019, p. 71/163
55/141 is seen in Figure 29, a portion 404a of the inner wall 404 of the mounting section 402 of the blade housing 400 within the dotted lines extending horizontally IWBS constitutes both a part of the inner wall 404 of the mounting section 402 and a part of the inner wall 452 of the blade support section 450. The dotted lines IWBS substantially correspond to an axial extension of the inner wall 452 of the blade support section 450, that is, the IWBS lines correspond to the upper end 456 and the lower end 458 of the blade support section 450. A substantially vertical portion 452a of the inner wall of the blade support section 452 adjacent the first upper end 456 defines the blade housing support surface 459. In an exemplary embodiment of the energy operated rotary knife 100 and as best seen in Figures 13 and 29A, the blade housing support surface 459 comprises a support groove 460 extending radially internally on the inner wall 452. Support groove 460 is axially spaced from the upper end 456 of the blade support section 450. In an exemplary embodiment, a central portion 462 of the support groove of blade housing 460 defines a generally concave bearing surface, and, more specifically, a generally arched bearing face 464.
[00167] In an exemplary embodiment of the energy operated rotary knife 100, the knife blade support surface 319 is concave with respect to the outer wall 312, i.e. the knife blade support surface 319 extends on the wall 312 forming the support groove 320. It should be appreciated that the knife blade support surface 319
Petition 870190003445, of 11/01/2019, p. 72/163
56/141 and / or blade housing support surface 459 may have a different configuration, e.g., in an alternative embodiment, knife blade support surface 319 and blade housing support surface 459 could, for example, be convex with respect to their respective external and internal walls
312, 452. The plurality of undulating bearings
6 of the blade support structure blade housing
500 would clearly have to be configured properly.
Although other geometric shapes can be used, the use of the arched support faces 322,
464 for the support grooves 320, 460 of both the rotating knife blade
300 and blade housing 400 is well suited for use with the energy operated knife 100 of the present disclosure. Due to the unpredictable and variable load direction, the plurality of bearings 506 and arcuate support faces 322, 464 allows the rotary knife blade 300 and blade housing 400 to be mounted in such a way as to allow working or operational clearance. This helps to maintain, as far as possible, the theoretical ideal of a single contact point of undulating bearing between a given bearing of the plurality of bearings 506 and the arched face of the rotating knife blade 322 and the theoretical ideal of a single contact point of undulating bearing between a certain bearing of the plurality of bearings 506 and the blade housing support face 464. (Clearly understanding that a single undulating bearing contact point is a theory, as the deformation between a bearing and a groove of support necessarily causes deformation of the bearing and the support groove resulting in a small contact region, as
Petition 870190003445, of 11/01/2019, p. 73/163
57/141 opposite a contact point.) Nevertheless, the support arched face configurations 322, 464 provide the reduced friction torque produced in the support region. Due to the thin cross sections of the rotary knife blade 300 and the blade housing 400 of the energy operated rotary knife 100, there is a tendency for both the inner groove or blade support groove 320 and the outer groove or outer groove of the blade 460 flex and bend while in use. An arched support groove design of the radius slightly larger than the sphere of the plurality of bearings 506 will allow the balls to move along an arc defined by the annular passage 504 and still contact the respective support grooves 320, 460 in the respective single points thus maintaining low friction even during the folding and arching of the blade of the rotary knife 300 and the blade housing 400. The arched shape of the blade and support groove of blade housings 320, 460 also helps to compensate for manufacturing irregularities within of the rotating knife blade 300 and the blade housing 400 and thus helps to maintain the theoretical ideal of the single support contact point between a bearing of the plurality of bearings 506 and the respective support grooves 320, 460, as discussed above, as well as reducing friction.
[00169] A radially internal wall 440 (Figures 2A, 30 and 31) of the blade housing plug 430 defines a support groove 442 which is a portion and is continuous with the support groove 460 of the blade housing 400. As the portion 404a of the inner wall 404 of the mounting section 402 of the blade housing 400 within the dotted lines extending horizontally IWBS, a portion of the inner wall 440 of the
Petition 870190003445, of 11/01/2019, p. 74/163
58/141 blade housing plug 430 that would be within the horizontally extending dotted lines IWBS of Figure 29 is both a part of the inner wall 440 of the blade housing plug 430 and a part of the inner wall 452 of the support section of blade 450. Thus, when the blade housing plug 430 is inserted into the blade housing plug opening 429 of the blade housing 400, the blade housing support groove 460 is substantially continuous over the entire 360 ° circumference the blade support section 450.
[00170] As can be better seen in Figure 13, when the blade is fixed and supported within the blade housing 400 by the blade support structure - blade housing 500, with the purpose of preventing the entry of meat, bone pieces and other debris on the driven gear 328 of the rotary knife blade 300, a projection or driven gear cover extending radially outwardly 466 at the lower end 458 of the blade support section 450 is axially aligned and overlaps at least a portion of the surface of bottom 345 of the knife blade driven gear cog assembly 328. The projection or driven gear cover 466 defines the lower end 458 of the blade support section 450. The driven gear cover 466 overlaps or connects a gap between the first and second imaginary cylinders 336, 337 (Figure 24) formed by the driven gear 328 of the rotating knife blade 300. As can be seen in Figure 13, due to the radial projection 348 of the knife blade body 302 and driven gear cover 466, only a small radial gap gap exists between the radially extending end
Petition 870190003445, of 11/01/2019, p. 75/163
59/141
467 of the driven gear cover 466 of the blade housing 400 and the vertical lower projection portion 344 of the outer wall 312 of the knife blade body 302. Advantageously, the combination of the radial knife blade projection 348 and the housing cover of blade 466 forms a type of labyrinth seal that inhibits the entry of debris into the regions of driven gear 328 and the supporting groove 320 of the rotating knife blade 300.
[00171] As can be best seen in Figure 13, the inner wall of the blade support section 452 of the blade housing 400 includes a first protrusion extending radially outwardly 470 which is located axially below the blade housing support groove 460. The inner wall of the blade support section 452 also includes a second protrusion extending radially externally 472 which forms an upper surface of the driven gear cover portion 466 and is axially spaced below the first protrusion extending radially outwardly 470. A first and second protrusions 470, 472 provide the seating regions for the horizontally extending portion 342 of the outer wall of the knife blade 312 and bottom surface 345 of the gear teeth assembly 330, respectively, to support the knife blade 300 when knife blade 300 is positioned in blade housing 400 from axially above ma and the undulating support strip 502 of the blade support structure - blade housing 500 has not been inserted into a passage 504 (Figure 13) between the blade of the rotating knife 300 and the blade housing 400 defined by the opposing arched faces of support 322, 464 of the knife blade support groove
Petition 870190003445, of 11/01/2019, p. 76/163
60/141
320 and the blade housing support groove 460. Clearly, it should be understood that without the insertion of the undulating support strip 502 in passage 504, if the energy operated rotary knife 100 is inverted, that is, upside down to From the orientation of the energy operated rotary knife 100 shows, for example, in Figure 7, the blade of the rotary knife 300 would fall from the blade housing 400.
[00172] As best seen in Figures 25, 27 and 29, the right tapered region 416 (as seen from the front of the rotary knife operated by energy 100, that is, looking at blade housing 400 from the perspective of an arrow labeled RW (designating a rear direction) in Figure 25) of the blade housing assembly section 402 includes a cleaning port 480 for injecting the cleaning fluid to clean the blade housing 400 and the knife blade 300 and the undulating support strip 502 during a cleaning process. Cleaning door 480 includes an inlet opening 481 on the outer wall 406 of mounting section 402 and extends through outlet opening 482 on the inner wall 404 of mounting section 402. As can best be seen in Figure 29, a portion of outlet opening 482 in the inner wall of the mounting section is congruent and opens in a region of the supporting groove 460 of the blade housing 400. outlet opening 482 in the inner wall of the mounting section 404 and a radial gap G (Figure 13) between blade 300 and blade housing 400 provides fluid communication and cleaning fluid injection in the support groove regions 320, 460 of knife blade 300 and blade housing 400, respectively, and the driven gear 328 of knife blade 300.
Petition 870190003445, of 11/01/2019, p. 77/163
61/141
Blade support structure - blade housing 500 [00173] The energy-operated rotary knife 100 includes the blade holder - blade housing or support structure 500 (best seen in Figures 2A, 13 and 14) which: a) fixes the knife blade 300 to the blade housing 400; b) supports the knife blade for rotation with respect to the blade housing on the rotary axis R; and c) defines the rotary plane RP of the knife blade. As previously noted, advantageously, the blade support structure - blade housing 500 of the present disclosure allows the use of a continuous single-piece blade 400 ring housing. Additionally, the blade support structure - blade housing 500 provides less friction between knife blade 300 and blade housing 400 compared to previous energy-operated rotary knife designs.
[00174] The lower friction provided by the blade support structure - blade housing 500 advantageously allows the energy operated rotary knife 100 of the present disclosure to be operated without the use of an applied source of lubrication by additional operator. Previous energy operated rotary knives typically included in a lubrication reservoir and bellows-type hand pump mechanism, which allowed the operator to inject edible food grade grease from the reservoir into the blade support region - blade housing for the purpose of providing additional lubrication to the support region. When cutting or trimming a meat product, lubrication in the nature of grease / grease typically occurs as a natural by-product or as a result of cutting / trimming operations, that is, as the meat product is cut or trimmed, the knife blade
Petition 870190003445, of 11/01/2019, p. 78/163
62/141 rotary cuts through grease / grease. As the cutting / trimming operations continue and the rotating knife blade rotates inside the blade housing, the fat / grease from the meat product can migrate, among other places, in the blade support region - blade housing.
[00175] In the energy operated rotary knife 100, the fat / grease may migrate in the annular passage 504 (Figure 13) defined by the opposing arched faces 322, 464 of the rotating knife blade 320 support groove and the support groove blade housing 460 as per knife 100 is used for meat cutting / trimming operations. However, on previous energy operated rotary knives, this naturally occurring lubrication would typically be supplemented by the operator when using the pump mechanism to apply additional lubrication to the blade housing region in an attempt to reduce the blade support friction - housing blade, make the blade rotate easier and reduce heat.
[00176] In an exemplary embodiment of the 100-operated rotary knife, there is no grease reservoir or hand pump mechanism to apply the grease. The elimination of the need for additional lubrication, clearly, advantageously eliminates those components associated with the supply of lubrication (grease reservoir, pump, etc.) on previous energy operated rotary knives. The elimination of components will reduce weight and / or reduce the maintenance requirements associated with the lubrication components of the 100 energy operated rotary knife. Less friction between knife blade 300 and blade housing 400 decreases the heat generated due to friction between the
Petition 870190003445, of 11/01/2019, p. 79/163
63/141 rotary knife blade 300, blade support structure blade housing 500 and blade housing 400.
Reducing the heat generated in the blade support region of the blade housing has numerous benefits including mitigating the aforementioned problem of “cooking the dislodged fragments of the trimmed meat, cartilage, fat and bone that migrated in the blade support region 504 blade housing In previous energy operated rotary knives, the frictional contact between the blade and blade housing, under certain conditions, would generate enough heat to “cook the material in the blade support region - blade housing. The “cooked” material tended to accumulate in the blade support region blade housing as one as a sticky accumulation of material, an undesirable result.
[00177] Additionally, the lower friction provided by the blade support structure - blade housing 500 of the energy operated rotary knife 100 has the additional advantage of potentially increasing the service life of one or more of the knife blade 300, the blade 400 and / or gearbox components 602. Clearly, the service life of any component of the energy operated rotary knife 100 is dependent on the proper operation and maintenance of the energy operated knife.
[00178] As can be better seen in Figures 14-17, the blade support structure - blade housing 500 comprises an elongated undulating support strip 502 which is circumferentially routed through the annular passage 504 on the axis of rotation R of the blade knife set 300. A rotary knife support assembly 552 (Figure 13) of the knife
Petition 870190003445, of 11/01/2019, p. 80/163
64/141 energy operated rotary 100 includes the combination of the blade support structure - blade housing 500, the blade housing support groove 460, the knife blade support groove 320 and the annular passage 504 defined between the themselves. In an exemplary alternative embodiment, a plurality of the elongated undulating support strips can be used, each similar to, but shorter in length than, the elongated support strips 502. Using a plurality of the shorter elongated support strips in place of the single longer elongated support strip 502 may be advantageous so that shorter elongated support strips are less difficult and less expensive to manufacture. If a plurality of the elongated support strips were used, such strips would be sequentially inserted into the annular passage 504 head to tail or in spaced relation. The plurality of the elongated support strips may include the slightly enlarged end portions so that two adjacent support strips do not travel together or to limit an overlapping length of two adjacent support strips.
In an exemplary embodiment, the central portion 462 of the blade housing support groove 460 defines, in cross section, the substantially arched support face
464. Similarly, the central portion 324 of the knife blade support groove 320 defines, in cross section, the substantially arched support face 322.
As can best be seen in Figures 14-17, the elongated undulating support strip 502, in an exemplary embodiment, comprises the plurality of spacer cage undulating bearings 506 supported for rotation in the flexible 508. In an exemplary embodiment,
Petition 870190003445, of 11/01/2019, p. 81/163
65/141 the flexible separator cage 508 comprises an elongated strip of polymer 520. The elongated strip of polymer 520 defines a longitudinal axis of SLA strip (Figure 16) and is generally rectangular when viewed in cross section. The 520 strip includes a first vertical SVA axis (Figure 15) that is orthogonal to the longitudinal axis of the SVA strip and a second horizontal SHA axis (Figure 15) orthogonal to the longitudinal axis of the SLA strip and the first vertical SVA axis. The first vertical axis of strip SVA is substantially parallel to a first inner surface 522 and a second outer surface 524 of strip 520. As can be seen in Figure 15, the first inner surface 522 and the second outer surface 524 are generally planar and parallel . The second vertical axis of the SHA strip is substantially parallel to a third surface above or above 526 and a fourth bottom or bottom surface 528 of the strip 520.
[00180] Each of the plurality of bearings 506 is supported for rotation in a respective different support pocket 530 of range 520. The support pockets 530 are spaced along the longitudinal axis of the SLA range. Each of the strip support pockets 530 defines an opening 532 extending between the first inner surface 522 and the second outer surface 524. Each of the plurality of support pockets 530 includes a pair of spaced support arms 534, 536 extending in the opening 532 to contact and rotatively support a respective bearing of the plurality of bearings 506. For each pair of the support arms 534, 536, the support arms 534, 536 are mirror images of each other. Each of the pairs of support arms 534, 536 defines a pair of boundary support surfaces generally
Petition 870190003445, of 11/01/2019, p. 82/163
Arched 66/141 which rotatively supports a bearing of the plurality of bearings 506. Each of the pairs of support arms 534, 536 includes an extension portion 538 that extends externally from the range 520 beyond the first inner planar surface 522 and an extension portion 540 that extends externally from the band 520 beyond the second outer planar surface 524.
[00181] The plurality of the bearings 506 of the elongated undulating support strip 502 are in undulating contact and provide the rolling bearing between the knife blade support groove 320 and the blade housing support groove 460. At the same time, while supporting knife blade 300 for minor friction rotation with respect to blade housing 400, the elongated undulating support strip 502 also works to secure knife blade 300 with respect to blade housing 400, that is, the support 502 prevents knife blade 300 from falling out of blade housing 400, regardless of the orientation of the energy operated rotary knife 100.
[00182] When the undulating support strip 502 and, specifically, the plurality of bearings 506 are inserted in the passage 504, the plurality of bearings 506 support the knife blade 300 with respect to the blade housing 400. In an exemplary embodiment, the The plurality of bearings 506 is rated that their radii are smaller than the respective radii of the arched bearing surfaces 464, 322. In an exemplary embodiment, the radius of each of the plurality of bearings 506 is 1 mm or approximately 0.039 inch, while the radii of the arched support surfaces 464, 322 are slightly larger, in the order of
Petition 870190003445, of 11/01/2019, p. 83/163
67/141 approximately 0.043 inch. However, it must be recognized that in other alternative embodiments, the radii of the plurality of bearings 506 may be equal to or greater than the radii of the arcuate bearing faces 464, 322. That is, the radii of the plurality of bearings 506 may be in one general variation between 0.02 inch and 0.07 inch, while the radii of the arched supporting surfaces 464, 322 can be in a general variation between 0.03 inch and 0.06 inch. As can best be seen in Figure 13, when the undulating support strip 502 is inserted into the radial annular gap G, the plurality of bearings 506 and a central portion 509a of the separator cage 508 is received at the annular passage 504 defined between the opposite surfaces support 319, 459 of the rotary knife blade 300 and the blade housing 400. The annular passage 504 comprises part of the annular gap G between the opposite outer wall 312 of the blade body of the rotary knife 302 and the inner wall 452 of the section of blade holder of the blade housing 450. In an exemplary embodiment, the annular gap G is in a range of approximately 0.04 - 0.05 inch and is disposed between the vertical inner wall portion 452a of the blade holder section 450 of the blade housing 400 and the vertical outer wall portion border 340 of the outer wall 312 of the body 302 of the knife blade 300, adjacent or in the region of the opposing supporting surfaces 3 19, 459.
[00183] As can be seen in Figure 13, the annular passage 504 is generally circular in cross section and receives the plurality of bearings 506 and a central portion 509a of the separator cage 508 of the elongated undulating support strip 502. When positioned in the passage ring 504, the range of
Petition 870190003445, of 11/01/2019, p. 84/163
68/141 elongated undulating support 502, and specifically the separator cage 508 of the undulating support strip 502, substantially forms a circle or portion of a circle within the annular passage 504 centered on an axis that is substantially congruent with the axis of the rotary knife blade of rotation R. As the separator cage 508 of the undulating support strip 502 is vertically oriented in the gap G, the cage 508 includes the upper and rear portions 509b extending from the central portion 509a. As can be seen in Figure 13, the upper and rear portions 509b of the separator cage 508 extend axially slightly above and slightly below the plurality of bearings 506. When positioned in the annular passage 504, the elongated undulating support strip 502 forms substantially a circle or portion of a circle within the annular passage 504 centered on an axis that is substantially congruent with the axis of the rotating knife blade of rotation R, while the separator cage 508 substantially forms a cylinder or portion of a cylinder with the gap G centered on the rotary knife blade axis of rotation R.
[00184] As can be seen in Figure 13, the separator cage 508, in cross section, is rectangular and is oriented in a perpendicular position within the gap G, the separator cage 508 can be seen as forming substantially a cylinder or a partial cylinder within gap G centered on the blade axis of the rotating knife of rotation R. The plurality of bearings 506 travel within the annular passage 504, which is substantially circular in cross section and is centered on the axis of the blade of rotation R.
[00185] To minimize friction, it is not desirable that the
Petition 870190003445, of 11/01/2019, p. 85/163
69/141 flexible separator cage 508 is in contact with or in support engagement with the blade of the rotary knife 300 or the blade housing 400 as this would unnecessarily generate sliding friction. What is desired for the blade of the rotary knife 300 to be supported exclusively with respect to the blade housing 400 via the undulating bearing bearing provided by the plurality of the bearings 506 of the undulating support strip 502 supporting against the opposite arched support faces 322, 464 of the rotary knife blade 300 and the blade housing 400. Correspondingly, as can best be seen in the sectional view of Figure 13, the flexible separator cage 508 is configured to travel in the annular passage 504 and in the annular gap G without contact substantial with knife blade 300 or blade housing 400 or opposite supporting surfaces 319, 459 of knife blade 300 and blade housing 400. In an exemplary embodiment, a width of the upper and lower portions 509b of the separator cage 508 is on the order of 0.03 inch and, as previously mentioned, the annular gap G is on the order of 0.04 - 0.05 inch. Thus, when the undulating support strip 502 is inserted into the annular passage 504, a gap of approximately 0.005 - 0.010 inch exists between the separator cage 508 and the vertical outer wall portion border 340 of the outer wall 312 of the blade body 302 of knife 300, adjacent to opposite supporting surfaces 319, 459. Depending on the specific length of the separator cage 508 and the circumference of the gap G, the ends 510, 512 of the separator cage 508 can be spaced slightly (as shown in Figure 14), may be in contact,
Petition 870190003445, of 11/01/2019, p. 86/163
70/141 or can be slightly overlapped.
[00186] It should be appreciated that when the blade of the rotating knife 300 is rotated by the drive set 604 at a specific desired RPM, the separator cage 508 also moves or translates into a circle along the annular gap G, although the rotational speed of the separator cage 508 within the G gap is less than the RPM of the rotary knife blade 300. Thus, when the energy operated rotary knife 100 is in operation, the elongated undulating support strip 502 passes through the annular passage 504 forming a circle on the axis of the knife blade of rotation R. Similarly, when the energy-operated rotary knife 100 is in operation, the separator cage 508, due to its movement or translation along the annular gap G over the axis of the rotating knife blade R, can be considered to form a complete cylinder within the G gap. Additionally, when the rotating knife blade 300 is rotated, the plurality of rollers both 506 rotate with respect to the separator cage 506 and also move or translate along the annular passage 504 on the axis of the knife blade of rotation R as the separator cage 508 moves or translates along the annular gap G. Upon the complete insertion of the undulating support strip 502 in the G slot, the mounted combination of blade housing 550 (Figures 9 and 10) is then ready to be fixed, as a unit, to the frame body 150 of the head assembly 111.
[00187] Corrugated support strips of suitable configuration are manufactured by KMF Germany and are available in the United States through International
Petition 870190003445, of 11/01/2019, p. 87/163
71/141
Customized Bearings, 200 Forsyth Dr., Ste. E, Charlotte, NC 28237-5815.
Attach the knife blade 300 to the blade housing 400 [00188] The blade support structure - blade housing 500 is used to either attach the blade of the rotating knife 300 to the blade housing 400 or rotate the blade 300 inside. of the blade housing 400. To insert the elongated undulating support strip 502 of the blade support structure - blade housing 500, the passage 504 formed between the radially aligned opposite arched support faces 322, 464 of the blade support groove 320 and the blade housing support groove 460, the blade housing plug 430 is removed from the blade housing plug opening 429 of the blade housing 400. Then, the undulating support strip 502 is routed between the knife blade 300 and the blade housing 400 in the annular gap G and through the passage 504. Then the blade housing plug 430 is inserted into the blade housing plug opening 429 and the plug eu 430 is fixed to the blade housing 400. The blade - blade housing combination 550 then ready to be fixed to the arched mounting pedestal 152 of the frame body 150.
[00189] As can be seen in Figures 18-21 and in the flow chart established in Figure 58, a method of fixing the blade of the rotating knife 300 to the blade housing 400 for rotation with respect to the blade housing 400 on the blade axis of the rotation R is generally shown at 900 in Figure 58. Method 900 includes the following steps. In step 902, remove the blade housing plug 430 from the blade housing plug opening 429. In step 904, position
Petition 870190003445, of 11/01/2019, p. 88/163
72/141 the rotary knife blade 300 in the blade housing 400 in a perpendicular position, so that the blade 300 is supported by the blade housing 400. Specifically, the knife blade 300 is positioned in the blade housing 400 in an orientation perpendicular so that the horizontal extension portion 342 of the outer wall 312 of the knife blade 300 and bottom surface 345 of the knife blade assembly of the gear teeth 330 is arranged on the respective first and second projections 470, 472 of the blade housing 400. In this perpendicular orientation, the blade housing support groove 460 and the knife blade support groove 320 are substantially radially aligned so that the annular passage 504 is defined between the blade housing support groove 460 and the knife blade support groove 320.
[00190] In step 906, as shown schematically in Figure 18, position the first end 510 of the flexible separator cage 508 of the undulating support strip 502 in the blade housing plug opening 429 so that the first end 510 is tangentially aligned with the gap G between the blade 300 and the blade housing 400 and the bearings 506 of the undulating support strip 502 are aligned with the annular passage 504 between the opposing arched faces 322, 464 of the blade 300 and blade housing 400 In step 908, advance the flexible separator cage 508 tangentially with respect to the gap G so that the bearings 506 of the undulating support strip 502 enter and move along the passage 504.
That is, as shown schematically in Figure 19, the separator cage 508 is advanced so that the separator cage 508 is
Petition 870190003445, of 11/01/2019, p. 89/163
73/141 effectively threaded through passage 504 and gap G. The separator cage 508 is oriented in a perpendicular position so that the cage fits in the gap G between the knife blade 300 and the blade housing 400.
[00191] In step 910, continue advancing the flexible separator cage 508 until the first and second ends 510, 512 of the separator cage 508 are substantially adjacent (Figure 20), that is, the separator cage 508 forms at least one portion of a circle within passage 504 and gap G (like the circle C formed by the separator cage 508 schematically shown in Figure 2A). A longitudinal extension of the separator cage 508 of the elongated strip 502 along the longitudinal axis of the SLA strip is sufficient so that, when the strip 502 is installed in the passage 504, the first and second end 510, 512 of the separator cage strip 508, if not in contact, are slightly spaced as shown, for example, in Figures 2A and 14. That is, the perpendicular cage 508 when installed in passageway 504 forms at least a portion of a cylinder within passageway 504 and gap G. In step 912 and as shown schematically in Figure 21, insert the blade housing plug 430 into the blade housing opening 429 and secure the blade housing plug to the blade housing 400 with the fasteners 432.
[00192] As the blade of the rotary knife 400 is rotated by the gear set 604, the elongated undulating support strip 502 will travel in a circular route or displacement path within the gap G, that is, the plurality of spaced bearings 506 move. will be in a circle through the annular passage 504. However, due to the
Petition 870190003445, of 11/01/2019, p. 90/163
74/141 individual bearings also rotating inside the separator cage 508 as the separator cage 508 moves in a circular route in the G gap, the rotational speed or angular speed of the separator cage 508 is significantly less than the rotation speed or angular speed of the blade of the rotating knife 300 with respect to the blade housing 400.
[00193] It should be appreciated that not all matched or collaborative surfaces supporting the rotary knife support assembly 552 including the plurality of bearings 506 of the elongated undulating support strip 502, the rotating knife blade support groove 320, the blade housing support groove 460 and blade housing plug support groove portion 446, as described above, are in contact at any given time, as there are necessarily working or operational gaps between the blade of the rotating knife support strip 300, blade housing 400 and blade housing plug 430 which would allow blade 300 to rotate relatively freely within blade housing 400.
[00194] These working or operational clearances cause the blade of the rotating knife 300 to act in some way related to a seesaw within the blade housing 400, that is, as a region of the blade 300 is rotated or moved upward within the blade housing 400 during a cutting or trimming operation, the diametrically opposite portion of the blade (180 ° away) is generally rotated or moved downward within the blade housing. Correspondingly, the matched support surfaces specific to the rotary blade support assembly 552 in
Petition 870190003445, of 11/01/2019, p. 91/163
75/141 contact at any specific location on the rotating knife blade 300, the blade housing 400 or the elongated support strip 502 will change and, at any given time, will be determined, at least partially, by the forces applied to the rotating knife blade 300 when using the energy operated rotary knife 100. Thus, for any specific portion or region of a support surface of the rotary blade support assembly 552, there may be periods of non-contact or intermittent contact with a matched support surface. .
[00195] Removing the blade from the rotating knife 300 from the blade housing 400 involves the reverse of the procedure discussed above. That is, the blade housing plug 430 is removed from the blade housing 400. The blade of the rotary knife 300 is rotated with respect to the blade housing 400 until the adjacent ends 510, 512 of the separator cage 508 are visible within the opening. blade housing plug 429. A small instrument, such as a small screwdriver, is used to contact and direct or force one end of the separator cage 508, say, the first end 510 of the separator cage 508, tangentially away from gap G. Rotation of the blade of the rotary knife 300 is continued until a sufficient length of the separator cage 508 is extending tangentially away from the gap G and through the blade housing plug opening 429 so that the end 510 of separator cage 508 can be gripped by the operator's fingers. The separator cage 508 is then pulled from the gap G. Once the cage 508 has been completely removed from the gap G between the blade of the
Petition 870190003445, of 11/01/2019, p. 92/163
76/141 rotary knife 300 and blade housing 400, blade housing 400 is inverted and the blade of rotating knife 300 will fall from blade housing 400.
“Cutting profile of the blade combination - blade housing 550 [00196] The friction or drag experienced by the operator according to the rotary knife operated by energy 100 is manipulated by the operator to move through a product P, as schematically illustrated in Figures 54 and 55, is dependent, among other things, on the cross section shape or configuration of the blade combination - blade housing 550 in a CR cut region of the assembled combination 550. As can be best seen in Figure 3, the CR cut region of the blade combination - blade housing 550 is approximately 240 ° from the entire 360 ° periphery of the combination. The cutting region CR excludes approximately 120 ° from the periphery of the blade - blade housing combination 550 occupied by the mounting section 402 of the blade housing 400.
[00197] As can be better seen in Figures 54 and 55, the combination of blade - blade housing 550 is configured and contoured to be regular and continuous as a practice. As can best be seen in Figure 54, an L1 layer of the material is cut or trimmed from a product P being processed (for example, a layer of fabric, for example, a layer of meat or fat trimmed from a carcass by moving the energy operated rotary knife 100 in a cutting direction CD so that the rotary knife blade 300 and blade housing 400 move along and through the product P to cut or trim the
Petition 870190003445, of 11/01/2019, p. 93/163
77/141 layer of material L1. As the energy operated rotary knife 100 is moved by the operator, the blade edge 350 cuts through layer L1 forming a cutting portion CL1 from layer L1. The cutting portion CL1 moves along a path of displacement of cut or trimmed material PT through the CO cutting opening of the blade combination blade housing 550 as the energy operated rotary knife 100 advances through product P.
[00198] A new outer NS layer (Figure 55) formed as layer L1 is cut from product P. The cutting portion CL1 of layer L1 slides along the inner wall 360 of the rotating knife blade 300, while the new outer surface layer NS slides along respective outer walls 356, 454 of blade section 350 of knife blade 300 and blade support section 404 of blade housing 400.
[00199] A smooth transition between the outer wall of the blade section 356 of the knife blade 300 and the outer wall of the blade support section 454 of the blade housing 400 is provided by the actuated gear cap portion extending radially short 466 of the blade housing 400 and the recess extending radially 308a from the lower end 308 of the rotary knife blade body 302. The proximity of the radially extending end 467 to the driven gear cover portion 466 provides a labyrinth seal for prevent foreign material from entering the knife blade driven gear region 328 and the blade support structure region - blade housing 500. Finally, the blade combination - blade housing 550 in the CR cutting region is adjusted to the extent possible for
Petition 870190003445, of 11/01/2019, p. 94/163
78/141 reduce the drag and friction experienced by the operator when handling the energy-operated rotary knife when performing cutting or trimming operations.
Gear set 604 [00200] The drive mechanism 600 of the energy operated rotary knife 100 includes certain components and assemblies internal to the energy operated rotary knife 100 including gear set 604 and driven gear 328 of the rotary knife blade 300 and certain components and assemblies external to the energy operated rotary knife 100 including the drive motor 800 and the flexible rod drive assembly 700, which is releasably coupled to the knife 100, via the drive shaft hitch assembly 275.
[00201] Within the energy operated rotary knife 100, the drive mechanism 600 includes gearbox 602 comprising gear set 604. In an exemplary embodiment, gear set 604 includes pinion gear 610 and gear gear transmission 650. The transmission gear 650, in turn, engages the driven gear 328 of the rotary knife blade 300 to rotate the knife blade 300. As previously noted, the transmission gear of the gearbox 650, in an exemplary embodiment , is a double gear that includes a vertically or axially oriented upper bevel gear 652 and a horizontally or radially oriented lower bevel gear 654. The upper bevel gear of the transmission gear 652 engages and is rotatably driven by pinion gear 610. A lower spur gear of transmission gear 654 defines a plurality of
Petition 870190003445, of 11/01/2019, p. 95/163
79/141 driven gear teeth 656 that are mated to the engaging gear teeth that join with the engaging gear teeth 332 of the driven knife blade rotary gear 328 to rotate the rotary knife blade 300. This combination of gear between the transmission gear 650 and the rotary knife blade 300 define a gear drive surrounding the straight gear 658 (Figure 8A) to rotate the rotary knife blade 300.
[00202] In the engaging gear drive, the profiles of the rotating knife gear teeth 332 of the rotary knife blade 300 and the gear teeth 656 of the straight gear 654 of the transmission gear 650 are wrapped in a circle and the contact between any the gear teeth occur at a substantially single instant. The rotation of the transmission gear 650 and the knife blade driven gear 328 cause the location of the contact point to move through the respective tooth surfaces. The movement through the respective gear tooth faces is an undulating type of contact, with substantially no slip involved. The surrounding tooth shape of the rotary knife blade gear teeth 332 and the spur gear teeth 656 result in very little wear of the respective joint gear teeth 332, 656 versus a gear structure, characterized by the fact that the connecting gear teeth contact with a sliding movement. The path traced by the contact point is known as the line of action. A property of the surrounding tooth shape is that if the gears are connected correctly, the line of action is straight and passes through the step point of the
Petition 870190003445, of 11/01/2019, p. 96/163
80/141 gears. In addition, the wraparound gear drive 658 is also a spur gear drive which means that a DGR rotation axis (shown in Figures 8 and 8A) of the transmission gear 650 is substantially parallel to the rotation axis R of the knife blade 300. Such a straight drive with parallel axes of rotation DGR, R is very efficient in transmitting the driving forces. The straight drive gear arrangement of the rotary knife blade gear teeth 332 and the straight gear drive teeth 656 also advantageously contribute to reducing the wear of the coupling gears 332, 656 compared to other more complex gear arrangements.
[00203] Pinion gear 610 comprises an input rod 612 and a gear head 614 that extends radially externally from the input rod 612 and defines a set of tapered gear teeth 616. The input rod 612 extends in a rear RW direction along the longitudinal axis of the LA cable assembly and includes a central opening 618 extending in a forward direction FW from a rear end 629 (Figure 41) to a forward end 628 of the rod inlet 612, the central opening 618 ending in the gear head 614. An inner surface 620 of the inlet rod 612 defines a cross-shaped female socket or connection 622 (Figures 37 and 40) that receive a married male drive connection 714 (Figure 53) of the rod drive assembly 700 to rotate the pinion gear 610 on an axis of rotation PGR that is substantially congruent with the longitudinal axis of the assembly of LA cable and
Petition 870190003445, of 11/01/2019, p. 97/163
81/141 crosses the knife blade axis of rotation R.
[00204] The pinion gear 610 is supported for rotation on the PGR rotation pinion gear axis (Figures 8 and 8A) by the bearing assembly 630, which, in an exemplary embodiment, includes a larger sleeve bushing 632 and a smaller sleeve bushing 640 (Figure 42). As can best be seen in Figure 41, an advanced boundary surface 624 of the gear head 614 of the pinion gear 610 includes a central recess 626 which is substantially circular in cross section and is centered on the pinion gear axis of the PGR rotation. The central recess of pinion gear 626 receives a cylindrical reward portion 642 from the smallest sleeve bushing 640. The smallest sleeve bushing 640 functions as a thrust bearing and includes an enlarged annular head 644 providing a support surface for the pinion gear gear 614 and limiting the travel of pinion gear 610 in the forward direction FW, i.e., pinion gear travel 610 along the pinion gear axis of rotation PGR, in the forward direction FW.
[00205] Sleeve bushing 640 is supported on a hub 158b (Figures 49 and 50) of the frame body 150. Specifically, hub 158b extends at the rear from an internal surface 158a of an advanced wall 154a of a central cylindrical region 154 of the frame body 150. The hub 158b of the central cylindrical region of the frame body 154 includes a smooth surface 158c that interacts with a smooth surface 648 (Figure 2C) formed in a central opening 646 of the sleeve bushing 640 to prevent rotation of the sleeve bushing 640 as the pinion gear 610 rotates on its axis of rotation PGR.
Petition 870190003445, of 11/01/2019, p. 98/163
82/141 [00206] In an exemplary embodiment, the gear head 614 of the pinion gear 610 includes 25 tapered gear teeth and, on the forward boundary surface 624, has an outside diameter of approximately 0.84 inch (measured through the gear from the top of the gear teeth) and a root diameter of approximately 0.72 inch (measured through a base of the teeth). Bevel gear teeth 616 taper from a larger diameter on the front boundary surface 624 to a smaller diameter away from the front boundary surface 624.
[00207] The largest sleeve bushing 632 of the pinion gear bearing housing assembly 630 includes a central opening 634 that rotatively receives and supports the pinion gear inlet rod 612. The largest sleeve bushing 632 includes a enlarged forward head 636 and a cylindrical rear body 637. The cylindrical rear body 637 of the largest sleeve bushing 632 is supported within a forming cavity 129 (Figures 39 and 48) of the inverted U-shaped forward section 118 of the housing gearbox 113, while the extended forward head 636 of the sleeve bushing 632 fits into an advanced forming cavity 126 of the U-shaped forward section 118 of the gearbox housing 113.
[00208] A smooth surface 638 (Figure 41) of the extended forward head 636 of the largest sleeve bushing 632 interacts with a smooth surface 128 of the U-shaped forward section 118 of the gearbox housing 113 to prevent rotation of the sleeve bushing 632 inside the gearbox housing 113. The cylindrical body 639 of the largest sleeve bushing 632 defining the central opening
Petition 870190003445, of 11/01/2019, p. 99/163
83/141
634 provides the radial roller bearing for pinion gear 610. The enlarged head 636 of sleeve bushing 632 also provides a thrust bearing surface for the rear collar 627 of gear head 614 to prevent axial movement of the pinion 610 in the rear direction RW, that is, the path of pinion gear 610 along the pinion gear axis of rotation PGR in the rear direction RW. Alternatively, instead of a pair of sleeve bushes 632, 640, the bearing housing assembly 630 for pinion gear 610 may comprise one or more roller or bearing assemblies or a combination of roller / bearing assemblies and roller bearings. mango.
[00209] The transmission gear 650, in an exemplary embodiment, is a double gear with axially aligned gears including the first bevel gear 652 and the second spur gear 654, both rotating on an axis of the transmission gear of the DGR rotation (Figure 8 and 8A). The axis of the transmission gear of the DGR rotation is substantially orthogonal and crosses an axis of the pinion gear of the PGR rotation. In addition, the axis of rotation of the DGR transmission gear is substantially parallel to the axis of the knife blade of rotation R. The first gear 652 is a bevel gear and includes a set of 653 gear taper teeth that mate with the gear set. taper gear teeth 616 of gear head 614 of pinion gear 610. As the pinion gear 610 is rotated by the rod drive assembly 700, the taper gear teeth 616 of pinion gear 610, in turn, engage the taper gear teeth 653 from
Petition 870190003445, of 11/01/2019, p. 100/163
84/141 first gear 652 to turn transmission gear 650.
[00210] The second gear 654 comprises a spur gear including a set of gear teeth 656. Spur gear 654 engages and drives the driven gear 328 of the knife blade 300 to rotate the knife blade about its axis of rotation R. Due to the straight gear 654 of gearbox 602 and driven gear 328 of knife blade 300 having axes of rotation
DGR, R which are parallel (ie a spur gear drive) and due to the gears
654,
328 comprise a 658 wraparound gear drive, there is less wear on the respective gear teeth
656, 332 than in other gear drives, characterized by the fact that the axes of rotation are not parallel and characterized by the fact that a non-enveloping gear drive is used. In an exemplary embodiment, the first gear 652 includes 28 tapered gear teeth and has an outside diameter of approximately 0.92 inch and an internal diameter of approximately 0.66 inch and the second gear 654 includes 58 spur gear teeth and has a outer diameter of approximately 1.25 inches and a root diameter of approximately 1.16 inches.
[00211] The transmission gear 650 is supported for rotation by mounting bearing 660 (Figures 3943). The bearing housing assembly 660, in an exemplary embodiment, comprises a bearing assembly 662 that supports the transmission gear 650 for rotation on the rotating axis of the transmission gear DGR. The assembly of
Petition 870190003445, of 11/01/2019, p. 101/163
85/141 transmission gear bearing housing 660 is attached to a projection extending downwards 142 (Figures 47 and 48) of the forward U-shaped section 118 of the gearbox housing 113. As can be seen in Figure 39, bearing assembly 662 includes a plurality of bearings 666 between an inner groove 664 and an outer groove 668.
The outer groove 668 is attached to the transmission gear 650 and is received in a central opening 670 of the transmission gear
650.
The internal groove 664 is supported by the fastener 672.
A threaded end portion of the fastener
672 and screws in a threaded opening
140 (Figures and 47) defined in a trunk 143 of the projection extending downwards 142 of the inverted U-shaped forward section
118 of the gearbox housing 113. The fastener
672 fixes bearing assembly
662 to gearbox housing
113.
Alternatively, instead of a bearing assembly, the 660 bearing housing assembly may comprise one or more sleeve bearings or bushings.
Gearbox housing 113
As best seen in Figures 2C, and 33-44, gearbox assembly
112 includes gearbox housing 113 and gearbox 602.
As can best be seen in Figures 41-48, gearbox housing
113 includes a generally cylindrical rear section
116 (towards the rear)
RW away from blade housing 400), an advanced inverted U-shaped section
118 (in the forward direction FW towards the blade housing 400) and a generally rectangular base section 120 arranged axially
Petition 870190003445, of 11/01/2019, p. 102/163
86/141 below the advanced section 118. The gearbox housing 113 includes the cavity or opening of the gearbox 114 that defines a complete orifice 115 extending through the gearbox housing 113 from one end at the rear 122 to an advanced end 124. The full hole 115 generally extends along the longitudinal axis of the LA cable assembly. The advanced inverted U-section 118 and the cylindrical rear section 116 combine to define an upper surface 130 of the gearbox housing 113.
[00213] The gearbox housing 113 also includes a generally rectangular shaped base 120 that extends downwardly from the forward U-shaped section 118, ie, away from the top surface 130. The rectangular base 120 includes a front wall 120a and rear wall 120b, as well as a bottom wall 120c and an upper wall 120d, all of which are generally planar. As best seen in Figures 47 and 48, extending radially internally in the front wall 120a of the rectangular base 120 there are the first and second arched recesses 120e, 120f. The first arcuate recess 120e is an upper recess, that is, the upper recess 120e is adjacent to a lower portion 141 of the forward U-shaped section 118 and, as best seen in Figure 43, is offset slightly below the upper wall 120d rectangular base 120. The second arcuate recess 120f is a lower recess and extends through the bottom wall 120c of rectangular base 120.
[00214] The lower portion 141 of the advanced section in format
Petition 870190003445, of 11/01/2019, p. 103/163
87/141 of inverted U 118 includes a projection extending downwards 142 (Figure 47). The downwardly extending projection 142 includes a cylindrical stem portion 143 and defines a threaded opening 140 extending through the projection 142. A central axis through the threaded opening 140 defines and coincides with the axis of rotation DGR of the transmission gear. 650 transmission.
The upper and lower arched recesses
120e,
120f are centered on the axis of the transmission gear of the rotation DGR and the central axis of the threaded opening 140.
[00215] The full hole 115 of the gearbox housing 113 provides a receptacle for the pinion gear 610 and its associated bearing housing assembly
630 while the upper and lower arched recesses 120e, 120f provide the clearance for the transmission gear 650 and its associated bearing housing 660 assembly. Specifically, with respect to the bearing housing assembly 630, the cylindrical body 637 of the largest bearing bushing sleeve 632 fits inside the cylindrical cavity 129 of the forward section in an inverted U shape 118. The extended forward head 636 of the sleeve bushing 632 fits within the advanced cavity 126 of the forward section 118. The cylindrical cavity 129 and the cavity 126 of the advanced U-shaped section 118 are both part of the full orifice 115.
[00216] With respect to the upper and lower arched recesses 120e, 120f, the upper recess 120e provides the clearance for the first bevel gear 652 of the transmission gear 650 as the transmission gear 650 rotates on its axis of rotation DGR through the first gear
Petition 870190003445, of 11/01/2019, p. 104/163
88/141 conical 652 being driven by pinion gear 610. The wider lower recess 120f provides clearance for second gear 654 of transmission gear 650 as straight gear 654 collaborates with driven gear 328 to rotate the rotary knife blade 300 on its axis of rotation R. As best seen in Figures 39 and 40, the projections extending downwards 142 and trunk 143 provide the seating surfaces for the 662 bearing assembly, which support the transmission gear 650 for rotation within the rectangular base 120 of the gearbox housing 113. A cleaning door 136 (Figures 47 and 48) extends through the lower portion 141 of the forward U-shaped section 118 and a portion of the base 120 of the housing of gearbox 113 to allow the flow of cleaning fluid injected into the complete orifice 115 of the gearbox housing 113 from the proximal end 122 of the gearbox housing 113 to flow to the upper and lower arched recesses 120e, 120f for the purpose of cleaning the transmission gear 650.
[00217] As can be seen in Figures 39 and 40, an internal surface 145 of the section at the cylindrical rear 116 of the gearbox housing 113 defines a threaded region 149, adjacent to the proximal end 122 of the gearbox housing 113. A threaded region 149 of the gearbox housing 113 receives a matched threaded portion 262 (Figure 2B) of the elongated center core 252 of the handpiece retention assembly 250 to secure the handpiece 200 to the gearbox housing 113. As seen in Figures 38-44, an outer surface
Petition 870190003445, of 11/01/2019, p. 105/163
89/141
146 of the cylindrical rear section 116 of the gearbox housing 113 defines a first portion 148 adjacent the proximal end 122 and a second portion of larger diameter 147 arranged ahead or in an FW forward direction of the first portion 148. The first portion 148 of the The outer surface 146 of the cylindrical rear portion 116 of the gearbox housing 113 includes a plurality of axially extending keys 148a. The plurality of keys 148a accept and inter-adjust with four ribs 216 (Figure 2B) formed on an internal surface 201 of a distal end portion 210 of handpiece 200. The plurality of collaboration of keys 148a of gearbox housing 113 and the four ribs 216 of handpiece 200 allow handpiece 200 to be oriented in any desired rotational position with respect to gearbox housing 113.
[00218] The second larger diameter portion 147 of the outer surface 146 of the section at the cylindrical rear 116 of the gearbox housing 113 is configured to receive a spacer ring 290 (Figure 2B) of the handpiece retaining assembly 250. According to can be seen in Figure 8A, spacer ring 290 finds and supports against a stepped recess 147a defined between the cylindrical rear section 116 and the inverted U-shaped section 118 of the gearbox housing 113. That is, a upper portion 134 of the inverted U-shaped section 118 is slightly radially above a corresponding upper portion 132 of the section at the cylindrical rear 116 of the gearbox housing 113. A bottom or proximal surface 292 (Figure 2B) of the ring spacer 290
Petition 870190003445, of 11/01/2019, p. 106/163
90/141 acts as a stop for an axially stepped collar 214 of the distal end portion 210 of handpiece 200 when handpiece 200 is attached to the gearbox housing
113 by the elongated central core
252 of the handpiece retention assembly 250.
[00219] The second larger diameter portion 147 of the outer surface
146 also includes a plurality of braces (seen in
Figures 41 and 46).
plurality of second portion braces 147 is used with respect to an optional thumb support (not shown) that can be used in place of the spacer ring
290. The thumb support provides an externally angled extending support surface for the operator's thumb. The plurality of keys in the second portion 149 is used with respect to the optional thumb support to allow the operator to select a desired rotational orientation of the thumb support with respect to the gearbox housing 113 just in accordance with the plurality of keys 148a of the first portion 148 allows the operator to select a desired rotational orientation of handpiece 200 with respect to gearbox housing 113.
Frame body 150 [00220] Also part of the head assembly 111 is the frame or frame body 150, best seen in Figures 45 and 49-52. The frame body 150 receives and removably supports both the gearbox assembly 112 and the blade combination - blade housing 550. In this way, the frame body 150 reliably and operatively couples the gearbox assembly 112 to the blade combination - blade housing 550 so that the set of
Petition 870190003445, of 11/01/2019, p. 107/163
91/141 gear 604 of gearbox assembly 112 operatively engages driven gear 328 of rotary knife blade 300 to rotate knife blade 300 with respect to blade housing 400 on the axis of rotation R.
[00221] The frame body 150 includes the arched mounting pedestal 152 arranged in an forward portion 151 (Figure 2C) of the frame 150, the central cylindrical region 154 and a rectangular base 180 (Figure 48) arranged below the central cylindrical region 154 The arched mounting pedestal 152 of the frame body defines the seating region
152a (Figures 22C and 51) to receive the mounting section 402 of the blade housing 400 and fix the blade housing combination 550 to the frame body 150. The central cylindrical region 154 and the rectangular base 180 of the frame body 150 define a cavity
155 (Figures 45 and 49) that receives the gearbox housing 113 in a sliding way.
The frame cavity body 155 is comprised of an upper socket 156 defined by the central cylindrical region 154 and a horizontally extending lower opening 190 defined by and extending through the central rectangular base 180.
[00222] The central rectangular base 180 of the frame body 150 includes a bottom wall 182 and a pair of side walls 184 that extend upwardly from bottom wall 182. As is best seen in Figures 49 and 50, a pair of hubs 186 extends internally from the pair of side walls 184. The boundary surfaces at the rear 187 of the pair of hubs 186 each include a threaded opening 188. The horizontally extending bottom opening 190 defined by the rectangular base 180 includes two parts: one
Petition 870190003445, of 11/01/2019, p. 108/163
92/141 generally rectangular portion 190a extending at the rear from the pair of cube surfaces 187; and an advanced portion 190b extending through the rectangular base 180 to the seat region 152a of the frame body 150.
[00223] To fix the gearbox assembly 112 to the frame body 150, the gearbox assembly 112 is aligned and moved towards a proximal end 157 of the frame body 150. As can best be seen in Figure 45 , the socket 156 defined by the central cylindrical region 154 of the frame body 150 is configured to slidably receive the inverted U-shaped forward section of the gearbox housing 113 and the rectangular portion 190a of the opening extending horizontally 190 of the rectangular base 180 is configured to slidably receive the rectangular base 120 of the gearbox housing 113. The upper surface 130 of the gearbox housing 113 is received slidably within the inner surface 158 of the central cylindrical region 154 of the body frame 150.
[00224] When the gearbox assembly 112 is fully inserted into the frame body 150, the front wall 120a of the base 120 of the gearbox housing 113 meets the boundary surfaces at the rear 187 of the pair of hubs 186 of the rectangular base 180 of the frame body 150. In addition, the horizontally extending openings 121 of the gearbox housing base 120 are aligned with the horizontally threaded extending openings 188 of the pair of hubs 186 of the rectangular base of the frame body 180. A pair of threaded fasteners 192 (Figure 45) passes through the openings 121 of the box housing base
Petition 870190003445, of 11/01/2019, p. 109/163
93/141 gears 120 and thread into the threaded openings 188 of the pair of hubs 186 of the rectangular base of the frame body 180 to releasably secure the gearbox assembly 112 to the frame body 150. The openings 121 of the base of gearbox housing 180 is partially threaded to prevent fasteners 192 from falling out of openings 121 when gearbox housing 113 is not coupled to frame body 150.
[00225] The openings 121 of the gearbox housing base 120 include countersunk end portions 121a (Figure 45) for receiving the extended heads of the pair of threaded fasteners 192 so that the extended heads of the fasteners 192, when tightened on the frame body 150, are flush with the rear wall 120b of the base 120. The threaded fasteners 192 include the narrow body portions relative to the extended heads and larger threaded portions in diameter so that the fasteners 192 remain captured within their respective openings. gearbox housing 121 when gearbox housing 113 is not coupled to the frame body 150. The relative movement between the gearbox assembly 112 and the frame body 150 is restricted by the threaded interconnection of the gearbox housing gears 113 to the frame body 150 via the threaded fasteners 192 and the border surfaces of the base and rectangular 120 of the gearbox housing 113 and rectangular base 180 of the frame body 150.
[00226] Additionally, the frame body 150 reliably receives the blade combination - blade housing 550 and thus operatively couples the blade combination Petition 870190003445, of 11/01/2019, pg. 110/163
94/141 blade housing 550 to gearbox assembly 112. As can be seen best in Figures 51 and 52, the arched pair 160, 162 of the frame body 150 defines the arched mounting pedestal 152. The assembly 152, in turn, defines the seat region 152a that reliably receives the mounting section 402 of the blade housing 400. Specifically, the arched mounting pedestal 152 includes an inner wall 174, an upper wall 176 extending radially in the forward direction FW from an upper end of the inner wall 174, and a lower wall or protrusion 178 extending radially in an advanced direction FW from a lower end of the inner wall 174.
[00227] When the blade housing assembly section 402 is correctly aligned and moved in engagement with the arched mounting pedestal of the frame body 152: 1) the outer wall 406 of the blade housing assembly section 402 supports against the inner wall of mounting pedestal 174 of frame body 150; 2) the first upper end 408 of the blade housing assembly section 402 supports against the upper wall of the mounting pedestal 170 of the frame body 150; and 3) a radially internally staggered portion 406a of the outer wall 406 of the blade housing assembly section 402 supports against an upper face and an advanced face of the radially externally projecting mounting pedestal 178 of the frame body 150.
[00228] The respective threaded fasteners 170, 172 of the frame body 150 are threaded into the threaded openings 420a, 422a of the mounting inserts 420, 422 of the section
Petition 870190003445, of 11/01/2019, p. 111/163
95/141 blade housing assembly 402 to secure the blade combination - blade housing 550 to the frame body 150. Assuming that the gearbox assembly 112 is coupled to the frame body 150, when the blade combination - blade housing 550 is attached to the frame body 150, the second straight gear 654 of the transmission gear 650 of the gearbox assembly 112 engages and joins with the driven gear 328 of the rotary knife blade 300 of the blade combination - blade housing 550. Thus, when gearbox assembly 112 and blade combination - blade housing 550 are attached to frame body 150, gear set 604 of gearbox assembly 112 is operatively engaged with driven gear 328 of the rotary knife blade 300 to rotatively drive the blade 300 into the blade housing 400 on the blade axis of rotation R. As the threaded fasteners 192 of the gearbox housing 113 that fasten the gearbox housing 113 to the frame body 150, the threaded fasteners 170, 172 of the frame body 150 include narrow bodies and larger threaded portions in diameter so that the fasteners remain captured in the partially threaded openings 160a, 162a of the arcuate arms 160, 162.
[00229] To remove the blade - blade housing combination 550 from the frame body 150, the pair of threaded fasteners 170, 172 of the frame body 150 are unscrewed from the threaded openings 420a, 420b of the mounting inserts of the blade housing 420 , 422. Then, the blade combination - blade housing 550 is moved in the direction
Petition 870190003445, of 11/01/2019, p. 112/163
96/141 advanced FW with respect to frame body 150 to detach the blade combination - blade housing 550
of the assembly in head 111. [00230] One wall advanced 154a Of region cylindrical central 154 of body frame 150 includes a 198 projection that supports a steel assembly 199 (Figure 2C). The assembly
steel 199 includes a support body 199a, inclined spring actuator 199b and a rod 199c with a steel member 199d affixed to a lower part of the rod 199c. The support body of the steel assembly 199a is attached to the projection 198. When the driver 199b is pressed by the operator, the rod 199c moves downwards and the steel member 199d engages the blade edge 350 of the knife blade 300 to straighten blade edge 350.
Handpiece 200 and handpiece retaining assembly 250 [00231] Cable assembly 110 includes handpiece 200 and handpiece retaining assembly 250. As can be seen in Figure 2B, handpiece 200 includes the inner surface 201 and the external clamping surface 204. The internal surface 201 of the handpiece 200 defines the central opening extending axially or complete hole 202. The external clamping surface 204 of the handpiece 200 extends between an enlarged proximal end portion 206 and the distal end portion 210. A front face or wall 212 of the handpiece 200 includes an axially staggered collar 214 that is spaced at the rear and serves as a reinforcing surface for a spacer ring 290 from the handpiece retaining assembly 250. A internal surface 201 of handpiece 200 defines the four ribs 216, as previously described, which allows handpiece 200 to be oriented in
Petition 870190003445, of 11/01/2019, p. 113/163
97/141 any desired rotational position with respect to the gearbox housing 113. A notched radial opening 220 on the front face 212 of the handpiece 200 receives an optional drive lever (not shown). The optional drive lever, if used, allows the operator to drive the energy-operated rotary knife 100 by rotating the lever towards the clamping surface 204 thereby engaging the drive mechanism 600 to rotate the blade of the rotary knife 300.
[00232]
The handpiece retention assembly 250, best seen in Figures 2 and
2B, releasably secures handpiece 200 to the gearbox housing
113. Handpiece retaining assembly
250 includes the elongated central core
252 that extends through the central opening
202 of the handpiece
200. The elongated core
252 is threaded into the threaded opening
149 (Figure 48) at the proximal end or at the rear
122 of the gearbox housing 113 to secure the handpiece
200 to the gearbox housing 113.
[00233] Handpiece retaining assembly 250 also includes spacer ring 290 (Figure 2B). When handpiece 200 is being attached to the gearbox housing 113, the spacer ring 290 is positioned on the second cylindrical portion 147 (Figure 48) of the outer surface 146 of the section at the cylindrical rear 116 of the gearbox housing 113. Spacer ring 290 is positioned to meet the stepped recess 147a defined between the second largest portion 147 of the outer surface 146 of the portion at the cylindrical rear 116 and the forward U-shaped section 118 of the housing
Petition 870190003445, of 11/01/2019, p. 114/163
98/141 of gears 113. When the handpiece 200 is attached to the gearbox housing 113 by the elongated central core 252, the spacer ring 290 is sandwiched between the handpiece 200 and the stepped recess 147a of the gearbox housing 113.
[00234] As can best be seen in Figure 2B and 8, the elongated central core 252 of the handpiece retention assembly 250 includes an inner surface 254 and an outer surface 256 extending between a distal reduced diameter end portion or forward 264 and the proximal or rear end portion 260. The inner surface 254 of the elongated central core 252 defines a complete orifice 258 extending along the longitudinal axis LA of the cable assembly 110. The elongated central core 252 also includes a threaded portion 262 on the outer surface 256 at the advanced reduced diameter end portion 264. The outer surface 256 of the elongated core 252 includes an radially externally staggered recess 265.
[00235] When the elongated central core 252 is inserted through the central full hole 202 and the threaded portion 262 of the core 252 is threaded into the threaded opening 149 of the gearbox housing 113, the handpiece 200 is attached to the gearbox housing gears 113. Specifically, handpiece 200 is prevented from moving in the forward axial direction FW along the longitudinal axis of the LA cable assembly by the spacer ring 290. The bottom surface 292 of the spacer ring 290 acts as a stop for the axially stepped collar 214 of the distal end portion 210 of the handpiece 200 to prevent
Petition 870190003445, of 11/01/2019, p. 115/163
99/141 movement of handpiece 200 in the forward direction FW. Handpiece 200 is prevented from moving in the axial direction at the rear RW along the longitudinal axis of the LA cable assembly by the radially externally staggered recess 265 of the elongated central core 252.
[00236] As can be seen in Figure 8, the stepped recess 265 of the elongated central core 252 holds against a corresponding internally stepped recess 218 of handpiece 200 to prevent movement of handpiece 200 in the rear RW direction. As previously mentioned, spacer ring 290 can be replaced with an optional operator thumb support. In addition, a strap attachment clamp (not shown) may be arranged between the spacer ring 290 and the gearbox housing 113. The strap attachment clamp, if used, provides an attachment point for a wrist strap optional operator (not shown).
Drive shaft hitch assembly 275
[00237] O central core elongated 252 of Assembly in retention in handpiece 250 includes the portion of far end proximal or at the rear extended 260. A portion in
widened end 260 supports a drive shaft hitch assembly 275 that engages a first coupling 710 (Figures 1 and 53) of an outer case 704 of the stem drive assembly 700 to secure the outer case 704 of the stem drive assembly 700 to the cable assembly 110 and thus guarantee the operative engagement of a first male connection 714 of the internal drive shaft 702 inside the female socket 622 of the pinion gear input rod 612. The inner surface 254 of the central core
Petition 870190003445, of 11/01/2019, p. 116/163
Elongated 100/141 252 also includes an internally stepped recess 266 (Figure 8) which provides a stop for a distal portion 711 of the first coupling 710 of the rod drive assembly 700.
[00238] As best seen in Figure 2B, the extended rear end portion 260 of the elongated central core 252 of the handpiece retention assembly 250 defines a generally U-shaped slot 268 that extends partially through the end portion 260 in a direction orthogonal to the longitudinal axis LA of the cable assembly 110. The rear end portion 260 also defines a central opening 270 (Figure 8) which is aligned and part of the complete hole 258 of the elongated central core 252. The central opening 270 ends at the internally stepped recess 266. An end wall 272 of the rear end portion 260 of the elongated central core 252 includes a peripheral cutout 274. The peripheral cutout 274 is best seen in Figures 2, 2B and 6.
[00239] Arranged in the U-shaped slot 268 of the elongated central core 252 there is a drive shaft hitch assembly 275 (best seen in the schematic exploded view in Figure 2B) that releasably engages or engages the stem drive assembly 700 to the cable assembly 110. The drive shaft hitch assembly 275 includes a smooth surface hitch 276 and a pair of inclined springs 278 inserted into slot 268. The smooth surface hitch 276 of the drive shaft hitch assembly 275 includes a central opening 280 which is substantially equal to the size of the opening 270 of the enlarged end portion 260 of the elongated central core 252.
Petition 870190003445, of 11/01/2019, p. 117/163
101/141 [00240] The coupling 276 is movable between two positions in a direction orthogonal to the longitudinal axis LA of the cable assembly 110: 1) a first locking position, in which the opening 280 of the coupling 276 is compensated from the opening 270 defined by the enlarged end portion 260 of the elongated central core 252; and 2) a second release position in which the opening 280 of the engagement 276 is aligned with the opening 270 defined by the enlarged end portion 260 of the elongated central core 252. The inclined springs 278, which are trapped between the peripheral recesses 281 in a lower portion 282 of the engagement 276 and the enlarged end portion 260 of the elongated central core 252, inclines the engagement 276 to the first locking position.
[00241] When the latch 276 is in the first locking position, a lower portion 286 of the latch 276 adjacent to the latch opening 280 extends into the opening 270 of the extended end portion 260 of the core 252. This can be seen schematically, for example example, in Figure 6. The movement of the coupling 276 with respect to the enlarged end portion 260 is limited by the engagement of a retaining pin 284 extending through a radially extending channel 283 formed in the coupling 276. The retaining pin 284 connects the U-shaped slot 268 of the extended end portion 260 and extends through channel 283. Channel 283 restricts and limits an extent of radial movement of the engagement 276 with respect to the extended end portion 260 of the elongated central core 252.
Drive mechanism 600 [00242] As best seen in the schematic illustration of Figure 53, knife blade 300 is
Petition 870190003445, of 11/01/2019, p. 118/163
102/141 rotary shape in blade housing 400 by drive mechanism 600. Within the power operated rotary knife 100, drive mechanism 600 includes gearbox 602 supported by gearbox housing 113. Gearbox 602 , in turn, is driven by the flexible rod drive assembly 700 and the drive motor 800 which are operatively coupled to gearbox 602. The flexible rod drive assembly 700 is coupled to the cable assembly 110 by the hitch assembly drive shaft 275. A portion of the flexible rod drive assembly 700 extends through the elongated center core 252 of the handpiece retaining assembly 250 and engages the pinion gear 610 to rotate the pinion gear about its axis rotation PGR and thus rotate the blade of the rotary knife 300 on its axis of rotation R.
[00243] As can be best seen in Figures 1 and 53, the drive mechanism 600 includes the flexible rod drive assembly 700 and the drive motor 800. The rod drive assembly 700 includes an internal drive shaft 702 and an outer case 704, the inner drive shaft 702 being rotatable with respect to the outer case 704. Attached to one end 706 of the outer case 704 is the first coupling 710 which is adapted to be releasably attached to the end portion at the extended rear 260 of the elongated center core 252 of the handpiece retention assembly 250. Attached to an opposite end 708 of the outer case 704 is a second coupling 712 that is adapted to be releasably attached to a coupling 802 of the drive motor
Petition 870190003445, of 11/01/2019, p. 119/163
103/141
800.
[00244] When the first coupling 710 of the rod drive assembly 700 is affixed to the handpiece 200, the first male drive connection 714 arranged at one end 716 of the internal drive shaft 702 engages the female socket or connection 622 of the driving rod pinion gear inlet 612 to rotate pinion gear 610 on the PGR rotation pinion gear shaft. The rotation of the pinion gear 610 rotates the transmission gear 650 which, in turn, rotates the blade of the rotating knife 300 on its axis of rotation R. When the second coupling 712 of the rod drive assembly 700 is received and affixed to the coupling drive motor 802, a second drive connection 718 disposed at an opposite end 720 of the internal drive shaft 702 engages a matched socket or connection 804 (shown in dotted line in Figure 53) of the drive motor 800. The engagement of the second drive connection 718 of internal drive shaft 702 and connection of drive motor 804 provides rotation of internal drive shaft 702 by drive motor 800.
[00245] In the first locking position of the coupling 276 of the drive shaft coupling assembly 275, the lower portion 286 of the coupling 276 extends in the opening 270 of the extended end portion 260 of the elongated central core 252 engages the first coupling 710 from the stem drive assembly 700 to secure the stem drive assembly 700 to the cable assembly 110 and ensure the matched engagement of the first male drive coupling 714 of the drive shaft 702 to the female socket or connection 622 of the
Petition 870190003445, of 11/01/2019, p. 120/163
104/141 pinion gear inlet rod 612. In the second release position, the coupling 276 is moved radially so that the opening 280 of the coupling 276 is aligned and coextensive with the opening 270 of the extended end portion 260 of the central core elongated 252, thus allowing removal of the first coupling 710 from the rod drive assembly 700 of the handpiece 200.
[00246] The drive motor 800 provides the motivating energy to rotate the knife blade 300 with respect to the blade housing 400 on the axis of rotation R via a drive transmission that includes the internal drive shaft 702 of the shaft assembly. drive 700 and gear set 604 of gearbox 602. The drive motor 800 can be an electric motor or a pneumatic motor.
[00247] Alternatively, the rod drive assembly 700 can be eliminated and the gear set 604 of gearbox 602 can be directly driven by an air / air motor or an electric motor arranged in the complete hole 258 of the elongated central core 252 of the handpiece retention assembly 250 or in the full hole 202 of the handpiece 200, if a different handpiece retention structure is used. A suitable pneumatic / air motor classified to fit within a hand piece of a rotary knife operated by energy is revealed in U.S. Patent Application No. Serial No. 13 / 073,207, filed March 28, 2011, called Energy-operated Rotating Knife with Disposable Blade Holder Assembly, inventors Jeffrey Alan Whited, David Curtis Ross, Dennis R. Seguin, Jr. and Geoffrey D. Rapp (proxy protocol BET-019432 US PRI). The request for
Petition 870190003445, of 11/01/2019, p. 121/163
105/141 not Provisional Patent Serial ^Nos 13 / 073,207 is incorporated herein in its entirety by reference.
"Attaching the stem drive assembly 700 to the cable assembly 110 [00248] To attach the stem drive assembly 700 to the handpiece 200, the operator axially aligns the first coupling 710 of the drive shaft assembly 700 along the axis longitudinal LA of the cable assembly 110 adjacent to the opening 270 defined by the extended end portion 260 of the elongated central core 252 of the handpiece retention assembly 250. The operator places his thumb on the portion 288 of the coupling 276 accessible through the peripheral cutout 274 of the enlarged end portion 260 and slides engagement 276 radially internally to the second release position. When the coupling 276 is in the release position, the operator moves an advanced portion 711 (Figure 53) of the first coupling 710 into the complete hole 258 of the elongated central core 252.
[00249] After the forward portion 711 of the first coupling 710 is received in the elongated central core 252 of the handpiece retention assembly 250, the operator then releases the coupling 276 and continues to move the first coupling 710 still in the full hole 258 of the core central 252 until the coupling 276 (which is radially inclined externally by the inclined springs 278) fix by pressure in a radial fixing groove 722 formed on an external surface of the first coupling 710 of the rod drive assembly 700. When the coupling 276 extends if in the fixing groove 722 of the first coupling 710, the first coupling 710 is attached to the elongated central cable mounting core 252 and the
Petition 870190003445, of 11/01/2019, p. 122/163
106/141 first male drive connection 714 of the internal drive shaft 702 is in operative engagement with the female socket or connection 622 of the pinion gear input rod 612.
[00250] To release the stem drive assembly 700 from the elongated central cable assembly core 252, the operator positions his thumb on the portion 288 of the engagement 276 accessible through the peripheral cutout 274 of the extended end portion 260 of the elongated central core 252 and slides the engagement 276 radially internally to the second release position. This action disengages the engagement 276 from the fixing groove 722 of the first coupling 710 of the drive shaft assembly 700. At the same time, the operator moves the first coupling 710 in the direction in the axial rear RW out of the full hole 258 of the elongated central core 252 and away from the cable assembly 110. This will result in the first male drive connection 714 of the drive shaft 702 being disengaged from the female connection 622 of the 612 pinion gear input rod. Rotating knife blade styles [00251] According previously mentioned, depending on the cutting or trimming task to be performed, different sizes and styles of the blades of the rotating knife can be used in the 100 energy operated rotary knife of the present disclosure. Likewise, as previously mentioned, rotating knife blades in various diameters are typically offered ranging in size from about 1.2 inches in diameter to more than 7 inches in diameter. The selection of a blade diameter will depend on the task or tasks being performed. Additionally,
Petition 870190003445, of 11/01/2019, p. 123/163
107/141 different styles or configurations of the rotating knife blades are also offered. For example, the blade style of the rotating knife 300 schematically illustrated in
Figures 1-53 and discussed above is sometimes referred to as a "level blade" rotating knife blade. The term “smooth surface” refers to the profile of the blade section 304 and, specifically, to a cutting angle
CA (Figure 24) of the blade section
304 with respect to a plan
CEP which is congruent with a cutting edge 350 of the blade 300. The CA angle of the blade section
304 with respect to the CEP cutting edge plane is relatively large. As can be seen in Figure 24, the cut angle
AC, that is, the angle between the blade section 304 and the plane
CEP, as measured against the inner section of the blade section
354 is an obtuse angle, greater than 90 °. This large obtuse AC cutting angle is referred to as a “shallow blade cutting profile
As can be seen in Figure 55, internal wall
360 is in a generally smooth frustro-conical shape.
As product P is being trimmed or cut by the leveled blade 300, the layer of cut material CL1 moves easily along the inner wall 360 of the leveled blade 300. The leveled blade 300 is specifically useful for trimming thicker layers of the cutting material. a product, for example, trimming a thicker layer of fat or meat tissue from a piece of meat, as the rotary knife operated by energy 100 is moved over the product in a sweeping motion. This is true because even the thickest layers of the cut or trimmed material will flow with minimal drag or friction on the inner wall 360 of the leveled blade 300.
Petition 870190003445, of 11/01/2019, p. 124/163
108/141 [00252] Another blade profile is shown on the “hook blade style rotary knife blade which is schematically illustrated in 1000 in Figure 56. Here, the CA cutting angle with respect to the CEP plane defined by the cutting edge 1050, can be the same or slightly greater or less than the AC cutting angle of the rotating knife blade 300 (see Figure 24). However, the internal profile of the hook blade 1000 is less planar and more V-shaped than the internal profile of the leveled blade 300. That is, as the internal surface of the blade curves radially internally as it moves from the section blade 1004 to body section 1002. This internal curvature of the inner surface of the hook blade 1000 results in a less smooth and more curved travel path for the cut or trimmed material, as compared to the leveled blade 300. Thus, the blade hook cutter 1000 is specifically useful for trimming relatively thin layers of material from a product, for example, trimming a thin layer of fat or meat tissue from a relatively large flat piece of meat, as the energy operated rotary knife 100 is moved over the product in a sweeping motion. To trim the thicker layers of material from a product, the hook blade 1000 would not be as efficient, as the curved displacement path of the cut or trimmed material layer would result in the energy-operated rotary knife 100 experiencing more drag and resistance during the cutting or trimming. In this way, more effort would be required by the operator to move and manipulate the energy operated rotary knife 100 to make the desired cuts or shavings.
Petition 870190003445, of 11/01/2019, p. 125/163
109/141 [00253] As can also be seen, the shape of the blade body of the rotary knife 1002 is also different than the body 302 of the level blade of the rotary knife 300. Correspondingly, the shape of a support section of blade 1450 of a blade housing 1400 is also modified correspondingly to the shape of the blade holder section 450 of the blade housing 400 when used on the energy-operated rotary knife 100. That is, the shape of a specific rotary knife blade selected to be used on the 100 energy operated rotary knife will sometimes require modification of the associated blade housing to the 100 energy operated rotary knife. However, the blade support structure - blade housing 500 and gear set 604, as discussed above, are used to support and drive the blade 1000. Additionally, as discussed above, the driven gear 1030 of the knife blade 1000 is spaced axially below the supporting groove 1020.
[00254] A more aggressive blade profile is shown on the “straight blade style rotating knife blade which is schematically illustrated in 1500 in Figure 57. The cutting angle CA is less than the cutting angles of the blades of the rotating knife 300 and 1000. In fact, the AC cutting angle of the knife blade 1500 is an acute angle less than 90 ° with respect to the CEP plane defined by the cutting edge 1550. The AC cutting angle of the straight blade 1500 is very “pronounced and more aggressive than level blade 300 or hook blade 1000. A straight blade is specifically useful when making deep or sharp cuts on a product, ie making a deep cut on a meat product for the purpose of removing connective tissue / cartilage adjacent to
Petition 870190003445, of 11/01/2019, p. 126/163
110/141 a bone.
[00255] As can also be seen, the shape of the knife blade body 1502 is also different from that of the body 302 of the smooth-surface rotary knife blade 300. Correspondingly, the shape of a 1950 blade holder section of a blade housing 1900 is also modified correspondingly to the shape of the blade support section 450 of the blade housing 400 when used on the 100 energy operated rotary knife. However, the blade support structure - blade housing 500 and gear set 604, as discussed above, are used to support and drive blade 1000. Additionally, as discussed above, driven gear 1530 of knife blade 1500 is spaced axially below the supporting groove 1520.
[00256] Other styles, configurations and blade sizes of the rotating knife exist and can also be used with the 100 energy operated rotary knife. The blade housing blade structure 500 of the present disclosure and the other features, characteristics and attributes, as described above, the energy operated rotary knife 100 can be used with a variety of styles, configurations and blade sizes of the rotary knife and corresponding blade housings. The aforementioned examples are typical blade styles (smooth surface, hook and straight), however numerous other styles and blade combinations of blade styles can be used, with an appropriate blade housing, on the 100 energy operated rotary knife. present revelation, as would be understood by one with skill in the technique. It is the intention of this application to cover all such styles and blade sizes of the rotating knife,
Petition 870190003445, of 11/01/2019, p. 127/163
111/141 together with the corresponding blade housings, which can be used on the 100 energy operated rotary knife.
Second exemplary embodiment - elongated undulating support strip 2502 [00257] A second exemplary embodiment of an undulating support structure - 2500 slide housing comprises an elongated undulating support strip, as generally shown in 2502 in Figures 59-71. The elongated undulating support strip 2502 of the present disclosure is suitable for use on the energy operated rotary knife 100 in place of the elongated undulating support strip 502 of the blade - blade housing support structure 500. Unlike the undulating support strip 502, the undulating support strip 2502 includes the interconnected ends or end portions 2562 which allows the undulating support strip to be configured in a locked condition within the annular support passage 504 defined by the opposing supporting boundary surfaces 319, 459 of the rotary knife blade 300 and blade housing 400. When in a locked condition (Figures 67-71), the elongated undulating support strip 2502 defines a continuous annular rolling bearing ring 2560 within the support passage or support region 504. Except for the interconnected portions of end 2562, the elongated undulating support strip is similar in structure and function to the undulating support strip along 502 previously described.
[00258] The undulating support strip 2502 comprises an elongated flexible separator cage 2508 and a plurality of spaced undulating bearings 2506, such as a plurality of bearings. The separator cage 2508, in an exemplary embodiment, comprises an elongated strip of
Petition 870190003445, of 11/01/2019, p. 128/163
112/141 polymer 2520 defining a plurality of spaced corrugated bearing receiving pockets 2530, similar in structure and function to the pockets 530 of the elongated polymer strip 520 of the separator cage 508 of the corrugated support strip 502. Each of the plurality of the pockets 2530 of the separator cage 2508 is defined by an opening 2532, for receiving a corrugated bearing 2506, and a pair of support arms 2534, 2536, such as the support arms 534, 536 of the separator cage 508, which is fixed and rotatable supports an undulating bearing, such as a bearing 2506 within opening 2532. The extension portions of the support arms 2534, 2536 of the support arms 2534, 2536 extend radially away from a first inner surface 2522 of the separator cage 2508 and radially away from a second outer surface 2524 of the separator cage, as described with respect to the undulating support strip 502. The separator cage 2508 includes a first upper surface 2526 and a second lower surface 2528, as described with respect to the separator cage 508 of the undulating support strip 502.
[00259] With the exception of the blade housing plug 430 shown as not being inserted into the blade housing plug opening 429 and affixed to the blade housing 400, a mounted combination of the rotary knife blade 300, the blade housing 400 and blade support structure blade housing 2500 is generally shown at 2550 in Figure 76. Except for the differences between the elongated undulating support strip 2502 and the elongated undulating support strip 502, the assembled combination 2550 is substantially identical in structure and function to the rotary knife mounted combination 550
Petition 870190003445, of 11/01/2019, p. 129/163
113/141 operated by energy 100.
[00260] Advantageously, the undulating support strip 2504 includes the interconnected end portions 2546 of the separator cage 2508, which, when locked or coupled together, as described below, results in the annular undulating bearing ring 2560 within the passage 504. The locked condition of the undulating support strip 2502 is accomplished by coupling or locking a first end or end portion 2564 and a second inter-adjusting end or end portion 2566 of the separator cage 2508 when the undulating support strip 2502 is inserted into the annular passage 504 for fixing and supporting the blade of the rotating knife 300 for rotation with respect to the blade housing 400. In an exemplary embodiment, the interconnected end portions 2546 include the protruding member 2572 of the first end portion 2564 that fits into one receiving member 2582 of the second end portion 2566, when the support strip the corrugator is inserted and mounted in the annular passage 504. In an exemplary embodiment, the first protruding member of end portion 2572 comprises a protruding flap 2573, while the second receiving member of end portion 2582 comprises a slit or opening in an oval shape 2583.
[00261]
As was the case with the separator cage 508 of the undulating support strip 504, the separator cage 2508 of the undulating support strip 2502 is not configured to be or desired to be a support member or provide support surfaces with respect to the rotary knife blade 300 and blade housing 400. The plurality of bearings
Petition 870190003445, of 11/01/2019, p. 130/163
Undulating 114/141 2506 is designed to provide the undulating rolling bearing between the bearing surface 319 of the rotary knife blade 300 and the bearing surface 459 of the blade housing 400. The separator cage 2508 travels in the annular passage 504 and is configured not to hold or contact the rotary knife blade 300, the rotary knife blade support surface 319, the blade housing 400 or the blade housing support surface 459. As such, the first and second end portions 2564, 2566 are narrower in width than the rest of the separator cage 2508 so that when end portions 2546, 2566 are in the locked condition, contact of the rotating knife blade 300 and blade housing 400 is completely avoided or reduced to rare incident contact.
[00262] Advantageously, when inserted in the annular passage 504, the annular annular bearing ring 2560 defined by the undulating support strip 2502 of the present disclosure, provides significant advantages over an undulating support strip having any of the following configurations: 1) ends that are spaced apart (eg, the configuration shown in Figures 14 and 20); or 2) ends that are overlapping. First, with respect to a wavy support strip with spaced ends, any gap between the ends of the wavy support strip can serve as an undesirable collection region for the remains, such as small fragments of fat, cartilage and meat, particles of bone, etc., which are generated during cutting or meat trimming operations and move in the blade support region - blade housing, that is, the annular passage 504. The remains in the support region 504
Petition 870190003445, of 11/01/2019, p. 131/163
115/141 will tend to collect in any circumferential gap between the ends of the undulating support strip. Such trapped debris will undesirably increase the heat in the blade support region - blade housing 504 and may lead to “unwanted cooking of the debris. Advantageously, elongated undulating support strip 2502, when inserted in a locked condition in the annular passage 504, there is no gap between the end portions 2464,
2566 in which the remains are likely to be collected.
[00263]
Second, with respect to an undulating support strip with overlapping ends, the elongated undulating support strip
2502 again has a significant advantage.
As previously explained, when the rotating knife blade
300 is driven by the drive mechanism 600 to rotate with respect to the blade housing 400, the undulating support strip 2502 rotates within the annular passage 504 in the same direction as the blade of the rotary knife 300, albeit at a lower rotational speed than the rotating knife blade 300. In a situation where the undulating support strip has overlapping ends, one end is necessarily a “main end with respect to the rotating direction of the undulating support strip and rotating knife blade 300. According to the undulating support strip rotates, the main end will find the debris within the support region 504 and the debris will tend to accumulate or collect at the main end of the undulating support strip. Such accumulated debris again will undesirably increase the heat in the blade support region - blade housing 504. Advantageously, the separator cage 2508 includes a 2586 protrusion and ball room configuration
Petition 870190003445, of 11/01/2019, p. 132/163
Protruding 116/141 2592
2566 with functions collected in one adjacent to the second end portion as a funnel to minimize debris main or distal end 2578 of the first end portion 2564 as the undulating support strip 2502 rotates in the direction of the DR rotation (Figures 69 and 75- 76).
[00264] A third situation in which the ends of an undulating support strip are in contact, but not overlapping, while theoretically possible, is not realistic from a manufacturing perspective. Manufacturing tolerances and variation in terms of the circumferential length of the undulating support strip and a circumferential length of the annular passage 504 will result in a situation where there is a gap between the ends of the undulating support strip or there is an overlap of the ends of the support strip undulating. Advantageously, the undulating support strip 2502 is configured so that the receiving member 2582 of the separator cage 2508, which in an exemplary embodiment is a slot 2583 passing through a wall 2580 of the second end portion, has a longitudinal extension or circumferential length that is greater than a longitudinal extension or corresponding circumferential length of the protruding member 2572. In this way, manufacturing variations in the longitudinal extension or circumferential length of the separator cage 2508 are advantageously considered, as the slit
2583 has a longer circumferential length than the protruding member 2572 which interjusts in slot 2583 to achieve the locked condition. Thus, if the circumferential length of the 2508 separator cage is slightly
Petition 870190003445, of 11/01/2019, p. 133/163
117/141 greater or slightly less than a desired nominal value, protruding member 2572 will still fit into slot 2583.
[00265] A smooth unlocked condition of undulating support strip 2502 is schematically illustrated in Figures 59 62. In Figures 63-66, undulating support strip 2502 is schematically shown in an annular unlocked condition. In Figures 67-71, the undulating support strip 2502 is schematically illustrated in the annular locked condition within the annular support passage 504. Figure 72 is the schematic flowchart for a method of fixing and rotatingly supporting the blade of the rotating knife 300 with respect to the blade housing 400 using the undulating support strip 2502 of the present disclosure. Figures 73-76 illustrate the views in a schematic perspective section showing various stages of the method of releasing the blade of the rotating knife 300 reliably to the blade housing 400 using the undulating support strip 2502. More specifically, the method includes the steps of insert the undulating support strip 2502 into the annular passage 504 and lock the first and second end portion 2564, 2566 to achieve the locked condition of the undulating support strip 2502. In Figure 76, the undulating support strip 2502 is schematically illustrated in condition locked in passage 504, while Figures 73-75 schematically illustrate the insertion of the undulating support strip 2502 in the annular passage 504 of the blade support structure - blade housing 2500.
[00266] As can be seen in the Figures, the undulating support strip 2502 includes a central line extending
Petition 870190003445, of 11/01/2019, p. 134/163
118/141 longitudinally BSCL (Figures 59, 61 and 62) which substantially extends through a center of the separator cage 2508 and substantially extends through the centers of each of the plurality of bearings 2506. When the undulating support strip 2502 is in a smooth unlocked condition, as shown schematically in Figures 59-62, the RSCL center line is substantially congruent with a BSLA longitudinal axis of the 2502 range. -71, the BSLA longitudinal axis essentially becomes a BSAA annular axis of the undulating support strip 2502.
“End portions 2564, 2566 of undulating support strip 2502 [00267] The interconnected end portions 2562 of separator cage 2508 of undulating support strip 2502 comprise the first end portion 2564 and second end portion 2566. The first portion end cap 2564, as previously explained, includes a protruding member 2572 which, in an exemplary embodiment, comprises a protruding flap 2573. Protruding flap 2573 extends transversely from a first planar side 2571 (Figure 62A) of a wall 2570 of the first end portion 2564. As can best be seen in Figure 71, the first planar side 2571 is substantially parallel and congruent with the BSCL centerline, the BSAA annular axis and the BSLA longitudinal axis of the undulating support strip 2502. exemplary realization, the protruding flap 2573 is substantially oval in shape in axial cross section and, in the axial direction, extends along the BSCL axis of the
Petition 870190003445, of 11/01/2019, p. 135/163
119/141 undulating support strip 2502 and, in the radial direction, extends orthogonal to the first planar side 2571 and is substantially orthogonal to the BSCL centerline of undulating support strip 2502.
[00268] As can be best seen in Figure 62B, a second opposite side
2574 of the first end portion wall 2570 defines a circumferentially raised strand 2575 extending radially externally from a planar portion 2574a of the second side 2774 of wall 2570. An outer surface of the strand 2575 is substantially arcuate in shape radial cross section. A proximal end of the 2575 cord ends in a quarter of a 2575a sphere. A substantially planar distal end 2577 of wall 2570 defines a distal or terminal end 2578 of the first end portion 2564.
[00269] The first end portion 2564 also includes a protrusion 2576 extending transversely away from the first planar side 2571 of wall 2570. The protrusion 2576 defines a front face of a quarter of sphere 2590 protecting radially away from the outer surface 2524 of the separator cage 2508. The ball room 2590 extending from the projection 2576 is substantially radially aligned with the ball room 2575a of the strand 2575, that is, both are approximately at an equal axial distance away from the terminal end 2578 of the first end portion 2564.
[00270] A 2590 sphere radius with respect to the BSCL undulating support strip center line is labeled as FEQSR (first sphere quarter radius of
Petition 870190003445, of 11/01/2019, p. 136/163
120/141 end). Advantageously, the FEQSR ball quarter radius is smaller than the bearing radius of the plurality of bearings 2506 in order to mitigate any inadvertent contact between ball room 2590 and the bearing surface 459 of the blade housing 400. similarly, a 2575 bead radius with respect to the BSCL undulating support strip center line is labeled FEBR (first end bead radius). Advantageously, the FEBR bead radius is smaller than the bearing radius of the plurality of bearings 2506 in order to mitigate any inadvertent contact between the bead 2575 and the bearing surface 319 of the rotating knife blade 300. Finally, a diameter of FEROSD outer radial surface (Figure 71) of the first end portion 2564, as defined by the FEQSR ball quarter radius of the 2590 ball room plus the FEBR bead radius of the 2575 bead, is less than a bearing diameter of the plurality of bearings 2506 for the purpose of mitigating any inadvertent contact between the 2575 bead and the bearing surface 319 of the rotary knife blade 300 or quarter ball 2590 and bearing surface 459 of the blade housing 400.
[00271] The second end portion 2566, as previously explained, includes a receiving member 2582 which, in an exemplary embodiment, comprises a slit 2583. Slit 2583, in an exemplary embodiment, extends transversely from a wall 2580 (Figures 62C & 62D) of the second end portion 2566. Specifically, Slit 2583 extends from a first planar side 2571 of a wall 2580 through a second side opposite 2584 from wall 2580. As can be seen best in the figure
Petition 870190003445, of 11/01/2019, p. 137/163
121/141
71, the first 2581 planar side is substantially parallel and congruent with the BSCL centerline, the BSAA annular axis and the BSLA longitudinal axis of the undulating support strip 2502. In an exemplary embodiment, the 2573 slot is substantially oval in cross section axial and, in the axial direction, extends along the BSCL centerline of the undulating support strip 2502 and, in the radial direction, extends orthogonally through a wall 2580 and is substantially orthogonal to the BSCL centerline of the strip undulating support 2502.
[00272] As can be best seen in Figure 62C, the second opposite side
2584 of the second end portion wall 2580 defines a circumferentially raised strand 2585 extending radially externally from a planar portion 2584a of the second side 2784 of wall 2580. An outer surface of the strand 2585 is substantially arcuate in shape radial cross section. A proximal end of the 2585 cord ends in a quarter of a 2585a sphere. A substantially planar distal end 2587 of wall 2580 defines a distal or terminal end 2588 of the second end portion 2566.
[00273] The second end portion 2566 also includes a protrusion 2586 extending transversely away from the first planar side 2581 of the wall 2580. The protrusion 2586 defines a front face of a quarter ball 2592 protecting radially away from the surface inner 2522 of the separator cage 2508. The ball room 2592 extending from the projection 2586 is substantially radially aligned with the room ball
Petition 870190003445, of 11/01/2019, p. 138/163
122/141
2585a of strand 2585, i.e., both are approximately at an equal axial distance away from terminal end 2588 of the second end portion 2566.
[00274] A 2592 sphere radius with respect to the BSCL undulating support strip center line is labeled SEQSR (second end sphere quarter radius). Advantageously, the radius of the SEQSR quarter-ball is smaller than the radius of the bearings of the plurality of bearings 2506 in order to mitigate any inadvertent contact between the quarter 2592 ball and the bearing surface 319 of the rotating knife blade 300. similarly, a radius of the 2585 cord with respect to the BSCL undulating support strip center line is labeled SEBR (second end cord radius). Advantageously, the SEBR bead radius is smaller than the bearing radius of the plurality of bearings 2506 in order to mitigate any inadvertent contact between the 2585 bead and the bearing surface 459 of the blade housing 400. Finally, a surface diameter outer radial SEROSD (Figure 71) of the second end portion 2566, as defined by the SEQSR ball quarter radius of the 2592 ball room plus the SEBR bead radius of the 2585 bead, is less than a bearing diameter of the plurality of bearings 2506 for the purpose of mitigating any inadvertent contact between the ball room 2592 and the bearing surface 319 of the rotary knife blade 300 or the cord 2585 and the bearing surface 459 of the blade housing 400.
[00275] As previously mentioned and as can best be seen schematically in Figure 71, an axial extension or circumferential length of the slit 2583 along
Petition 870190003445, of 11/01/2019, p. 139/163
123/141 the annular axis of the wavy support strip RSAA exceeds an axial extension or circumferential length of protruding flap 2573 to allow interconnection of the first and second end portions 2564, 2566 by fully inserting the protruding flap 2573 of the first end portion 2564 in the receiving slot 2583 of the second end portion 2566, even if an axial length of the separator cage 2508 is at either end of the manufacturing tolerance range for the permissible axial length of the separator cage 2508. Likewise, the extra length of the slit 2583 as compared to the protruding flap 2573 advantageously allows the expansion and contraction of the axial length of the separator cage 2508 within the annular passage 504 that necessarily occurs according to the corrugated bearing strip 2508 heats and cools during the periods of use and not using rotary knife operated by energy 100 without loss of condition tr width of the undulating support strip 2502. As can also be better seen schematically in Figure 71, a radial extension of protruding flap 2573 (extending radially externally from the BSCL center line) is equal to or slightly less than a radial depth of the slot 2583 so that no portion of protruding flap 2573 extends externally beyond a radial outer surface of the cord 2585 of the second end portion wall 2580.
[00276] As can be better seen in Figure 71, the fourth quarter 2590 of the first end portion 2564 is axially aligned and essentially continues the strand 2585 of the second end portion 2566 in order to minimize ingress of debris between the first and second portions of
Petition 870190003445, of 11/01/2019, p. 140/163
124/141 end 2564, 2566 during rotation of the undulating support strip 2502 within the annular support passage 504 during operation of the energy operated rotary knife 100. Similarly, the 2592 ball quarter of the second end portion 2566 is axially aligned and essentially continues the cord 2575 of the first end portion 2564 in order to minimize the ingress of debris between the first and second end portion 2564, 2566 during the rotation of the undulating support strip 2502 within the annular support passage 504 during operation of the energy operated rotary knife 100. When in a locked condition within the annular support passage 504, the undulating support strip appears as shown in Figures 69, 71 and 76. As can be seen, the first planar side 2571 the wall 2570 of the first end portion 2564 is in relation to the opposite boundary with the first planar side 2581 of the wall 2580 of the second portion end plate 2566. This planar surface contact between the opposite sides 2571, 2581 minimizes ingress of debris between the first and second end portions 2564, 2566.
[00277] Suitable bearings 2506 for the undulating support strip 2502 can be purchased from McMaster-Carr Supply Co., 200 Aurora Industrial Pkwy., Aurora, OH 44202-8087 (www.mcmaster.com). The specific size of the 2506 bearings used in the 2502 undulating support range will clearly depend on several factors, including, but not limited to, the size of the energy operated rotary knife
100, the diameter of the annular passage 504 and the desired width of the G-gap. In an exemplary embodiment of the undulating support strip 2502, suitable stainless steel bearings
Petition 870190003445, of 11/01/2019, p. 141/163
125/141 having a diameter of 2 mm can be purchased from McMasterCarr Supply Co., as Part No. 1598K18.
[00278] It is desired that the separator cage 2508 of the undulating support strip 2502 is flexible, durable, capable of tolerating high temperature operating conditions, and has a low coefficient of thermal expansion. The separator cage 2508 can be comprised, for example, of a plastic composition and can be manufactured, for example, by extrusion, molding or other plastic fabrication techniques, as would be understood by those skilled in the art. Alternatively, the separator cage 2508 can be made of metal or metal alloys and can be formed in a desired configuration, for example, by machining a metal strip or by forming / shaping a metal strip of appropriate configuration by forming , casting, forging, extrusion, metal injection molding and / or electrical discharge machining or other suitable process or combination of metal forming processes.
Method of inserting and locking the undulating support strip 2502 [00279] As can be seen in Figures 73-76 and in the flow chart set out in Figure 72, a method of inserting and locking the undulating support strip 2502 within the annular support passage 504 for the purpose of securing the rotary knife blade 300 to the blade housing 400 for rotation with respect to the blade housing 400 on the blade axis of rotation R, it is generally shown at 2600 in Figure 72. Method 2600 includes the following steps . In step 2602, remove the blade housing plug 430 from the blade housing plug opening 429. In step 2604, position the rotary knife blade 300 in the blade housing 400 at
Petition 870190003445, of 11/01/2019, p. 142/163
126/141 a perpendicular position so that the blade 300 is supported by the blade housing 400. Specifically, the knife blade 300 is positioned in the blade housing 400 in a perpendicular orientation so that the horizontal extension portion 342 of the outer wall 312 of the knife blade 300 and bottom surface 345 of the knife blade assembly of the gear teeth 330 are arranged on the respective first and second projections 470, 472 of the blade housing 400. In this perpendicular orientation, the support groove of blade 460 and the knife blade support groove 320 are substantially radially aligned so that the annular passage 504 is defined between the blade housing support groove 460 and the knife blade support groove 320.
[00280] In step 2606, as shown schematically in Figure 73, position the first end portion 2564 of the flexible separator cage 2508 of the undulating support strip 2502 in the blade housing plug opening 429 so that the first portion of end 2510 is tangentially aligned with the gap G between the blade 300 and the blade housing 400 and the bearings 2506 of the undulating support strip 2502 are aligned with the annular passage 504 between the opposite arched support faces 322, 464 of the blade 300 and blade housing 400. In step 2608, advance the flexible separator cage 2508 tangentially with respect to the G gap so that the bearings 2506 of the undulating support strip 2502 enter and move along the passage 504. That is, as shown schematically in Figure 74, the separator cage 2508 is advanced so that the separator cage 508 is effectively threaded through
Petition 870190003445, of 11/01/2019, p. 143/163
127/141 of passage 504 and gap G. The separator cage 508 is oriented in a perpendicular position so that the cage fits in the gap G between the knife blade 300 and the blade housing 400.
[00281] In step 2610, continue to advance the flexible separator cage 2508 until the first and second end portions 2564, 2566 of the separator cage 2508 are overlapped with the slot 2583 of the second end portion 2566 radially aligned with the protruding flap 2573 of the first end portion 2564 with respect to the blade axis of the rotating knife of rotation R, as seen in Figure 75. In step 2612 and as shown schematically in Figure 76, move the second end portion 2566 towards the first portion of end 2546 so that protruding flap 2573 is received in slot 2583 thus reaching the locked position of the undulating support strip 2502 and forming a continuous undulating bearing ring 2560 within the passage 504. In step 2614, insert the blade housing plug 430 at the blade housing opening 429 and secure the blade housing plug to the blade housing 400 with the res 432.
[00282] Depending on where the interconnected end portions 2562 of the undulating support strip 2502 are circumferentially positioned within the annular support passage 2502, removal of the rotary knife blade 300 from the blade housing 400 will involve: a) pulling in a portion of the separator cage 2508 radially externally from the annular passage 504 thereby causing the separator cage to separate and then remove the undulating support strip 2502 from the annular passage 504; or b) pull on a portion of the
Petition 870190003445, of 11/01/2019, p. 144/163
128/141 separator cage 2508 radially externally from annular passage 504 thus causing the first and second interconnected end portions 2564, 2566 of separator cage 2508 to become circumferentially separated (moved to an unlocked condition) within the passage annul 504 and then remove the undulating support strip 2502 from the annular passage 504.
[00283] First, the blade housing plug 430 is removed from the blade housing plug opening 429 of the blade housing 400. Then, a small hook-end instrument, ie, a small head screwdriver smooth with the distal end folded in a right angled configuration (not shown), can be used to capture and remove the undulating support strip 2502 from annular passage 504. The instrument is inserted into the blade housing plug opening 429 and the hook end of the instrument is manipulated to capture behind the inner surface 2522 of the separator cage 2508. The instrument is then pulled in a direction away from the annular passage 504 generally parallel to the rotating plane RP of the rotating knife blade 300. Depending on where the interconnected end portions 2562 are positioned within the annular passage 504 with respect to the separator cage portion 2 508 that is captured by the instrument, pulling the instrument away from the passage 502 will result in: a) separating the separator cage 2508 at some point other than the interconnected end portions 2562; or b) result in an uncoupling and circumferential separation of the first and second end portions 2564, 2566. In any case, after
Petition 870190003445, of 11/01/2019, p. 145/163
129/141 separating or uncoupling, the undulating support strip 2502 can then be pulled from the annular passage 504. Once the undulating support strip 2502 has been completely removed from the annular passage 504, the blade housing 400 can be inverted and the blade of the rotating knife 300 will fall from the blade housing 400.
Second exemplary embodiment - blade housing 3400 [00284] A second exemplary embodiment of a blade housing of the present disclosure is shown schematically at 3400 in Figures 77 - 84. The 3400 blade housing is configured to be used on the energy operated rotary knife 100 and, correspondingly, has a configuration and function similar to the blade housing 400, discussed previously. Advantageously, the blade housing 3400 includes a blade housing plug 3430 that is hinged to a mounting section 3402 of the blade housing 3400, rather than being removable like the blade housing plug 430 of the blade housing 400. A central connection or coupling between the blade housing plug 3430 and the blade housing 3400 avoids the need to remove the blade housing plug 3430 from the blade housing 3400 during insertion or removal of the undulating support strip 502 from the support structure blade - blade housing 500. Instead, the blade housing plug 3430 rotates between a closed position (Figures 77, 78 and 83A) and an open position (Figures 79, 80 and 83B). The articulated connection between the blade housing plug 3430 and the blade housing 3400 mitigates the potential problem of wasting or losing the blade housing plug 430 when replacing the undulating support strip
Petition 870190003445, of 11/01/2019, p. 146/163
130/141
502. Remember that, in blade housing 400, blade housing plug 430 must be removed from the blade housing plug opening 429 for insertion or removal of undulating support strip 502 from annular passage 504 .
[00285] Additionally, because the 3430 blade housing plug is articulated to the 3400 blade housing, only a single 3432 fastener or screw is required to secure the 3430 blade housing plug with respect to the 3400 blade housing, as opposed to a pair of screws 432 used to secure the blade housing plug 430 to the blade housing 400. Furthermore, when the support surface 3459 of the blade housing 3400 is formed, for example, by machining an inner wall 3452 of a blade support section 3450 of the blade housing 3400 to form a support surface 3459 (similar to the supporting surface 459 of the blade housing 400), the blade housing plug 3430 is held in the closed position with respect to the housing blade 3400. In this way, an inner wall 3443 of the blade housing plug 3430 is machined simultaneously with the inner wall 3452 of the blade support section the blade housing 3450. This ensures that the configuration and alignment of a support surface 3446 formed on the inner wall 3443 of the blade housing plug 3430 is essentially identical to the configuration and alignment of the support surface 3459 of the blade support section of the blade housing 3450.
[00286] As was the case with blade housing 400, blade housing 3400, in an exemplary embodiment, is
Petition 870190003445, of 11/01/2019, p. 147/163
131/141 a single piece continuous annular structure. The blade housing 3400 includes the mounting section 3402 and the blade support section 3450. As was the case with the blade housing 400, in the blade housing 3400, the blade support section 3450 extends around the entire 360 ° circumference (360 degrees) of the blade housing
3400. Mounting section 3402 extends radially externally from the blade support section 3450 and subtends at an angle of approximately 120 °.
[00287] As can be seen in Figures 82 and 84, the mounting section 3402 is both axially thicker and radially wider than the blade support section 3450. The blade housing mounting section 3402 includes an inner wall 3404 and a radially spaced outer wall 3406 and a first upper end 3408 and a second axially spaced lower end 3410. At the forward ends 3412, 3414 of mounting section 3402, there are tapered regions 3416, 3418 that change between the upper end 3408, end bottom 3410 and outer wall 3406 of mounting section 3402 and the corresponding top end 3456, bottom end 3458 and outer wall 3454 of the blade support section 3450.
[00288] The outer wall 3406 of the blade housing assembly section 3402 includes a radially internally staggered portion 3406a, similar in structure and function to the internally staggered portion 406a of the outer wall 406 of the mounting section 402 of the blade housing 400. A blade housing assembly section 3402 further includes two mounting inserts 3420, 3422 (Figure 77), as the mounting inserts 420, 422 of the housing
Petition 870190003445, of 11/01/2019, p. 148/163
132/141 blade 400, extending between the upper and lower ends 3408, 3410 of the mounting section 3402. The blade housing assembly section 3402 is received in the seat region 152a defined by the arched mounting pedestal 152 of the body frame 150 and is attached to the frame body 150 by a pair of threaded fasteners 170, 172 (Figure 2C).
[00289] The mounting section 3402 also includes a gear recess and opening 3424 (Figures 77, 81 and 82) that extend radially between the inner and outer walls 3404, 3406. The gear recess 3424 includes an upper clearance recess 3424a of the recess and opening 3424 which provides clearance for the gear head 614 of the pinion gear 610 of the gear set 604 when the rotary knife blade combination combination 3550, the blade housing 3400 and the blade support structure - blade housing 500 are attached to the gearbox assembly 112 by the frame body 150 to complete the head assembly 111. The gear and opening recess 3424 further includes a central clearance recess 3424b that provides clearance for the bevel gear axially oriented gear 652 of gear set 650 of gear set 604. The gear recess and opening 3424 also includes a lower recess and opening 3424c. The lower recess and opening 3424c includes an opening 3424d (Figure 84) that extends through an inner wall 3404 of the blade housing assembly section 3402. The lower recess and opening 3424c provides clearance for the spur gear 654 of the transmission gear 650 of gear set 604 and opening 3424d allows the interface or union of straight gear 654 and driven gear 328 of the rotary knife blade
Petition 870190003445, of 11/01/2019, p. 149/163
133/141
300 to rotate the knife blade 300 with respect to the blade housing 3400.
[00290] The blade housing assembly section 3402 includes a cleaning port 3480 (Figures 82, 83, 83A and 83B) for injecting the cleaning fluid to clean the blade housing 3400, knife blade 300 and band undulating support frame 502 of the blade support structure - blade housing 500 during a cleaning process. In an exemplary embodiment, the cleaning door 3480 includes an entrance opening in the outer wall 3406 of the mounting section 3402 and extends through the exit opening in the inner wall 3404 of the mounting section 402.
[00291] The mounting section 3402 of the blade housing 3400 includes a blade housing plug opening 3428 extends between the inner and outer walls 3404, 3406 of the blade housing mounting section 3402. As best seen in Figures 81, 83, 83A, 83B and
84, the blade housing plug opening 3428 is an opening defined by generally parallel top and bottom walls 3429a, 3429b, a radially extending L-shaped left-hand wall 3429c and an angled right-hand wall 3429d. The right angled side wall 3429d of the blade housing plug opening 3428 includes an angled portion 3445a that is closed to the inner wall 3404 of the blade housing mounting section 3402 and a stepped portion 3445b that is closest to the outer wall 3406 of the blade housing assembly section 3402. The blade housing plug opening 3428 generally decreases in cross section when moving from the outer wall 3406 to the inner wall 3404.
Petition 870190003445, of 11/01/2019, p. 150/163
134/141
Advantageously, the blade housing plug 3430 is on the axis pivoted to the mounting section 3402 of the blade housing 3400 by a hinge pin 3436 that extends through a hole vertically extending 3439 in the blade housing plug 3430 and an aligned hole 3425 in the mounting section 3402. The aligned hole 3425 extends from the upper end 3408 of the mounting section 3402 to the blade housing plug opening 3428 and receives the hinge pin 3436.
[00292] As can best be seen in Figures 81, 82, 83 and 84, the blade support section 3450 of the blade housing 3400 includes an inner wall 3452 and the radially spaced outer wall 3454 and a first upper end 3456 and a axially spaced second lower end 3458. The blade support section 3450 extends over the entire 360 ° circumference of the blade housing 3400. The blade support section 3450 in a region of the mounting section 3402 is continuous and forms a portion of the inner wall 3404 of the mounting section 3402, as explained with respect to blade housing 400. A substantially vertical portion 3452a (Figure 84) of the inner wall of the blade support section 3452 adjacent the first upper end 3456 defines the surface of blade housing support 3459. In an exemplary embodiment of the 100-operated rotary knife, the blade housing support surface 3459 comprises a support groove 3460 which extends radially internally on the inner wall 3452. The support groove 3460 is axially spaced from the upper end 3456 of the blade support section 3450. In an exemplary embodiment, a central portion 3462 of the groove
Petition 870190003445, of 11/01/2019, p. 151/163
Blade housing support 135/141 3460 defines a generally concave support surface, and, more specifically, a generally arched support face 3464.
BLADE HOUSING PLUG 3430 [00293] The blade housing plug 3430 rotates between an open position (Figures 79, 80 and 83B) and a closed position (Figures 77, 78 and 83A). In the open position of the blade housing plug 3430, an inner wall opening portion 3428a of the blade housing plug opening 3428 that crosses and is flush with the inner wall 3404 of the blade housing mounting section 3404 is accessible to from the outer wall 3406 of the mounting section 3404. Access to the inner portion 3428a of the blade housing plug opening 3428 provides access to the annular passage 504 of the blade support structure - blade housing 500 and allows insertion and removal of the corrugated support strip 502 (or corrugated support strip 2502 of the blade support structure - blade housing 2500) in and from annular passage 504, as previously described. In the closed position of the blade housing plug 3430, the radial inner wall 3443 of the blade housing plug 3430 blocks and seals the inner wall opening 3428a defined by the blade housing plug opening 3428. In other words, the inner wall of the blade housing 3443 conforms, continues and seals the radial inner wall 3404 of the mounting section 3402 of the blade housing 3400 when the blade housing plug 3430 is in the closed position.
[00294] Additionally, a support surface portion 3446 (Figures 85, 86 and 88) of the internal wall 3443 of the plug
Petition 870190003445, of 11/01/2019, p. 152/163
136/141 of the blade housing 3440 defines a support surface that continues the support surface 3459 of the blade support section 3450 of the blade housing 3400, just according to the portion 446 of the radial inner wall 447 of the blade housing plug 430 defined a support surface and continued the support surface 459 of the blade support section 450 of the blade housing 400. Thus, when the blade housing plug 3430 is in the closed position (Figure 83A) at the plug opening blade housing 3428 of the blade housing assembly section 3402, the blade housing support groove 3460 is substantially continuous over the entire 360 ° circumference of the blade support section 3450.
[00295] The 3430 blade housing plug is held in the closed position within the 3428 blade housing plug opening by a single fastener which, in an exemplary embodiment, is a threaded fastener or 3432 screw that passes through a threaded opening 3438 extending vertically or axially through the blade housing plug 3430. The threaded fastener 3432 also passes through the first and second axially aligned upper and lower clearance opening 3426, 3427 in the mounting section 3402 of the blade housing 3400. The upper clearance opening 3426 extends from the upper end 3408 of the mounting section 3402 to the blade housing plug opening 3428, while the lower clearance opening 3427 extends from the blade housing plug opening 3428 through the bottom end 3410 of the mounting section. The upper gap opening 3426 is countersunk so that when the threaded fastener 3432 is
Petition 870190003445, of 11/01/2019, p. 153/163
137/141 inserted through the aligned openings 3438, 3426, 3427, an upper end of the 3432 threaded fastener is substantially flush with the upper end 3408 of the mounting section 3402. When the 3432 threaded fastener is removed from the 3400 blade housing and plug blade housing 3430, the blade housing plug is free to rotate on the 3436 hinge pin.
[00296] As can be best seen in Figure 83A, the 3430 blade housing plug is configured so that, when in the closed position, the 3430 plug occupies most of the 3428 blade housing plug opening. There is a cavity generally V-shaped 3448 extending between the blade housing plug 3430 and the right angled wall 3429d defining the opening of the blade housing plug 3428. The V-shaped cavity 3448 advantageously allows the insertion of a small instrument, such as the working end of a small screwdriver (not shown) to turn the blade housing plug 3420 from the closed position to the open position after the threaded fastener or screw 3432 has been removed from the blade housing 3400 and 3430 blade housing plug.
[00297] As can best be seen in Figures 85-88, the blade housing plug 3430 is defined by upper and lower surfaces generally parallel 3440, 3441 and an outer wall 3442 and the inner wall 3443. As best seen in Figure 78, when the blade housing plug 3430 is in the closed position, the upper and lower surfaces 3440, 3441 are parallel and in proximity to the upper and lower walls 3429a, 3429b,
Petition 870190003445, of 11/01/2019, p. 154/163
138/141 respectively, defining the blade housing plug opening 3428. As best seen in Figure 83A, when the blade housing plug 3430 is in the closed position, the inner wall plug of the blade housing 3443 continues and is flush with the radial inner wall 3404 of the mounting section 3402 in the region of the inner portion 3428a of the blade housing plug opening 3428. As best seen in Figure 87, the inner wall 3443 of the blade housing plug is slightly arched to conform to a radius of curvature of the inner wall 3404 of the mounting section 3402 and inner wall 3452 of the blade support section 3450 of the blade housing 3400. The inner wall plug of the blade housing 3443 also defines the portion of support surface 3446, as previously discussed, which is aligned and continues the support groove 3460 of the blade support section 3450 of the blade housing 34 00. [00298] As can be seen in Figure 83A, the blade housing plug 3430 also includes a left side wall 3444 and a right side wall 3445. When the blade housing plug 3430 is in the closed position, a inner portion 3444a of the left side wall 3444 of the blade housing plug 3430 is against a corresponding inner portion 3429e of the left L-shaped wall 3429c defining the blade housing plug opening 3428. Similarly, the right side wall 3445 of the blade housing plug 3430 includes an angled inner portion 3445a that meets an inner portion 3429f of the right angled wall 3429d defining the blade housing plug opening 3428. The stepped portion 3445b of the right side wall
Petition 870190003445, of 11/01/2019, p. 155/163
139/141
3445 is spaced from an outer portion of the angled right-hand wall 3429d thus forming the previously discussed V-shaped cavity 3448. The 3448 V-shaped cavity makes it easy to insert a small tool to force the 3430 blade housing plug from the closed position to the open position after the 3432 threaded fastener has been removed from the 3402 blade housing mounting section. stepped portion 3445b of the right side wall 3445 includes an outer protrusion extending peripherally 3445c (Figures 83B, 85, 86 and 87) that extends the outer wall 3442 of the blade housing plug 3430 and provides a convenient surface for spying the plug blade holder 3430 to the open position with the working end of a small screwdriver or the like.
[00299] Advantageously, the close fit between the respective border or opposite walls defining the blade housing plug opening 3428 and the walls defining the blade housing plug 3430 and the close fit between the inner wall 3443 of the housing plug blade 3430 and inner wall opening 3428a of the blade housing plug opening 3428 effectively provides a seal between the blade housing plug 3430 and the blade housing plug opening 3428. That seal between the blade housing plug 3430 and the blade housing walls defining a 3428 blade housing plug opening prevent the entry of meat, bone and other debris that can reach the 3428 blade housing plug opening from an exterior of the 3400 blade housing to move through the
Petition 870190003445, of 11/01/2019, p. 156/163
140/141 blade housing plug opening 3428 and in the blade support structure - blade housing 500 and / or driven gear 328 of the rotary knife blade 300. Additionally, as previously explained with regard to blade housing 400 and the rotating knife blade 300, the combination of the radial knife blade projection 348 and a driven projection or gear cover 3466 (Figure 84) defining a lower end portion 3458 of the blade support section 3450 forms a type of labyrinth seal what
inhibits the ticket of the remains in the regions gear triggered 328 and the support groove 320 of blade of Knife rotating 300. [00300] As < used here, the terms of guidance and / or direction, such as, front, rear, advanced, at rear, distal proximal, distally, so mode proximal, higher , bottom, inside, to out,
internally, externally, horizontally, horizontally, vertically, vertically, axially, radially, longitudinally, axially, radially, longitudinally, etc., are provided for convenience and are generally related to the orientation shown in the Figures and / or discussed in the Detailed Description .
Such guidance / direction terms are not intended to limit the scope of the present disclosure, this application and / or the invention or inventions described therein and / or any of the claims attached hereto. In addition, as used herein, the terms understands, understands and understands must specify the presence of the declared resources, elements, integers, steps or components, however they do not prevent the presence or addition of one or more resources, elements, integers, steps or
Petition 870190003445, of 11/01/2019, p. 157/163
141/141 components.
[00301] What has been described above are the examples of the present disclosure / invention. It is clearly not possible to describe each conceivable combination of components, assemblies or methodologies for the purposes of describing the present disclosure / invention, but one of ordinary skill in the art will recognize that many additional combinations and permutations of the present disclosure / invention are possible. Correspondingly, the present disclosure / invention is intended to admit all such changes, modifications and variations that are within the spirit and scope of the attached claims.

权利要求:
Claims (12)
[1]
1. Rolling bearing tape, for an energy operated rotary knife (100) providing a bearing support for rotating a rotating knife blade (300) in relation to a blade housing (400), the bearing tape bearing (2502) comprising:
a plurality of rolling bearings (2506) arranged in spaced relation;
a flexible separator cage (2508) positioning, fixing rotationally supporting the plurality of rolling bearings (2506), the flexible separator cage (2508) including first and second interconnected ends (2564, 2566), the bearing bearing tape ( 2502) including a longitudinally extending center line (BSCL) that extends through a center of the flexible separator cage (2508), the first end portion (2564) of the separator cage (2508) including a wall (2570) defining a protruding member (2572) and the second end portion (2566) of the separator cage (2508) including a wall (2570) extending along the longitudinally extending center line (BSCL) of the rolling bearing tape (2502 ) and defining a protruding member (2572) extending transversely from the wall (2570), and the second end portion (2566) of the separator cage (2508) including a wall (2580) defining a receiving member imento (2582), the protruding member (2572) and the receiving member (2582) arranged in opposite opposite relationship and the protruding member (2572) extending in the receiving member (2582) to fix the first portion of
Petition 870190003445, of 11/01/2019, p. 159/163
[2]
2/4 end (2564) to the second end portion (2566) and form a continuous undulating bearing ring (2560), characterized by the wall (2570) of the first end portion (2564) of the separator cage (2508) ) include a circumferentially protruding cord extending (2575) extending from the wall (2570) in a direction away from the protruding member (2572), an outer circumferentially protruding cord extending (2575) being substantially arched in radial cross section.
2. Tape according to claim 1, characterized in that the respective overlapping portions facing the wall (2570) of the first end portion (2564) and the wall (2580) of the second end portion (2566) are substantially flat .
[3]
Tape according to claim 1 or 2, characterized in that the protruding member (2572) comprises a protruding flap (2573) extending transversely from the wall (2570) of the first end portion (2564) receiving member (2582) ) comprise a slot (2583) extending radially in the wall (2580) of the second end portion (2566).
[4]
4. Tape according to claim 3, characterized in that the protruding flap (2573) extends substantially across the flat portion of the wall (2570) of the first end portion (2564) and the slit (2583) extends orthogonally, substantially, to a flat portion of the wall (2580) of the second end portion (2566).
[5]
5. Tape according to claim 3 or 4,
Petition 870190003445, of 11/01/2019, p. 160/163
3/4 characterized by the fact that the protruding flap (2573) is substantially oval in shape in the axial cross section and extends along the center line (BSCL) of the rolling bearing tape (2502) and the protruding flap (2573) is substantially oval in shape in the axial cross section and
extend to the long center line (BSCL) of ribbon in rolling bearing ( 2502). 6. Tape, of a deal with at claims 3, 4 or 5, characterized fur fact in an axial extension gives tab protruding ( 2573) be smaller than an extension axial gives slit (2583).7. Tape, of wake up with at claims 3, 4, 5 or 6, characterized fur fact in a radial extension gives tab protruding ( 2573) away the wall (2570) of the first
end portion (2564) is substantially equal to a radial extension of the slot (2583).
[6]
8. Tape according to any one of claims 1 to 7, characterized in that the cord (2575) extends circumferentially along the center line (BSCL) of the rolling bearing tape (2502).
[7]
9. Tape according to claim 8, characterized in that a radial external surface of the cord (2575) over the first end portion (2564) defines a diameter in relation to the center line (BSCL) of the bearing bearing tape (2502) which is less than an outside diameter of each of the rolling bearings (2506) of the plurality of rolling bearings (2506) relative to the center line (BSCL) of the rolling bearing tape (2502).
[8]
10. Tape according to any one of claims 1 to 9, characterized in that the separator cage (2508)
Petition 870190003445, of 11/01/2019, p. 161/163
4/4 be elongated and the rolling bearing tape (2502) arranged so that it is flat when in an unlocked condition.
[9]
11. Tape according to any one of claims 1 to 10, characterized in that the separator cage (2508) has a plurality of spaced bearing receiving pockets (2530), and spaced bearing receiving pockets ( 2530) being, respectively, defined by an opening (2532) to receive one of the bearing housings (2506) and a pair of support arms (2534.2536) which securely and rotatably support the bearing housings (2506) inside opening (2532).
[10]
12. Tape according to any one of claims 1 to 11, characterized in that the roller bearings (2506) are ball bearings.
[11]
13. Tape according to any one of claims 1 to 12, characterized in that an opposite side of the wall (2580) of the second end portion (2566) of the separator cage (2508) defines a circumferentially raised cord extending ( 2585) which is substantially arcuate in radial cross section.
[12]
14. Tape according to claim 13, characterized in that a radial outer surface of the cord (2575) over the second end portion (2566) defines a diameter in relation to the center line (BSCL) of the bearing bearing tape (2502) which is less than an outside diameter of each of the rolling bearings (2506) of the plurality of rolling bearings (2506) relative to the center line (BSCL) of the rolling bearing tape (2502).

类似技术:

---

公开号 | 公开日 | 专利标题

---

BR112014001782B1|2019-05-14|BEARING BEARING RIBBON

---

BR112014001915B1|2020-10-27|annular rotary knife blade and energy operated rotary knife

---

BR112014001912A2|2019-11-12|energy operated rotary knife

---

BR112014001910B1|2019-10-15|ENERGY AND METHOD ACTIVATED ROTARY KNIFE TO SUPPORT A RING ROTARY KNIFE BLADE

---

BR112014001911B1|2019-11-26|rotary knife and annular rotary knife blade

---

AU2017251690B2|2019-05-09|Power operated rotary knife

同族专利:

---

公开号 | 公开日

---

EP2736346B1|2018-05-02|

---

EP2736346A1|2014-06-04|

---

US9211650B2|2015-12-15|

---

AU2012287285A1|2014-02-06|

---

US20130025134A1|2013-01-31|

---

US9873207B2|2018-01-23|

---

AU2012287285B2|2017-10-19|

---

BR112014001782A2|2017-02-21|

---

CN104080581B|2016-10-26|

---

US8739416B2|2014-06-03|

---

CN104080581A|2014-10-01|

---

US20160082612A1|2016-03-24|

---

EP2736346A4|2015-08-05|

---

US20140259698A1|2014-09-18|

---

WO2013016020A1|2013-01-31|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

USRE25947E|1965-12-14|Trimming and slicing device |

---

US1374988A|1921-04-19|Necticut |

---

US678772A|1900-11-05|1901-07-16|Joseph H Brandt|Ball-bearing.|

---

US676772A|1901-02-15|1901-06-18|Charles F Ruschaupt|Fluid-package filler.|

---

US1229345A|1915-03-11|1917-06-12|Railroad Supply Company|Directional trolley-contactor.|

---

US1220345A|1915-06-04|1917-03-27|Reginald Jacob Koster|Antifriction-bearing.|

---

US1476345A|1922-09-28|1923-12-04|Frank R Mcgee|Thrust bearing|

---

US1966266A|1931-08-06|1934-07-10|Fafnir Bearing Co|Cage for antifriction bearings|

---

US2266888A|1939-08-29|1941-12-23|Oscar S Mccurdy|Antifriction bearing|

---

US2566421A|1948-11-23|1951-09-04|Donald H Lapointe|Antifriction bearing-retaining strip|

---

US2827657A|1954-04-09|1958-03-25|Bettcher Industries|Boning knife|

---

US2883244A|1954-06-02|1959-04-21|Elizabeth Alma Pauline Berger|Bearing devices|

---

FR1216947A|1958-08-06|1960-04-29|Bettcher Industries|Meat cutting tool|

---

DE1849526U|1962-01-27|1962-04-05|Star Kugelhalter Ges M B H Deu|BALL HOLDER MADE OF PLASTIC.|

---

US3150409A|1963-04-10|1964-09-29|Frederick F Wilcox|Dehairing and skinning device|

---

US3269010A|1964-04-28|1966-08-30|Bettcher Industries|Trimming, slicing and boning device|

---

US3494684A|1967-04-26|1970-02-10|Torrington Co|Retainer|

---

US3472567A|1967-08-09|1969-10-14|Trw Inc|Filament wound bearing cage|

---

US3592519A|1969-10-29|1971-07-13|Textron Inc|Split antifriction-bearing construction|

---

US3816875A|1971-05-26|1974-06-18|Duncan Creations Inc|Meat cutting and slicing method and apparatus|

---

US4082232A|1977-03-03|1978-04-04|Garbalizer Corporation Of America|Shredder structure|

---

US4178683A|1978-07-17|1979-12-18|Bettcher Industries, Inc.|Knife with removable blade|

---

US4170063A|1978-07-17|1979-10-09|Bettcher Industries, Inc.|Knife with removable blade housing|

---

US4198750A|1978-10-16|1980-04-22|Bettcher Industries, Inc.|Ring blade knife having wear plate|

---

DE2906128A1|1979-02-17|1980-08-28|Schaeffler Ohg Industriewerk|Four point ball bearing cage segment - has rectangular shape with thickened portions forming guides each side of ball|

---

EP0016880B1|1979-03-28|1982-05-26|The Torrington Company Limited|Improvements in or relating to rolling bearings|

---

US4239304A|1979-03-28|1980-12-16|The Torrington Company|Bearing split cage|

---

US4267759A|1979-07-27|1981-05-19|Kimball International, Inc.|Tool safety lock ring|

---

US4236531A|1979-07-30|1980-12-02|Mccullough Timothy J|Rotary blade holder|

---

US4326361A|1980-06-27|1982-04-27|Union Carbide Corporation|Adjustable hub mount for circular saw blade|

---

US4363170A|1980-11-03|1982-12-14|Mccullough Timothy J|Blade holder for meat trimming knife|

---

DE3041860A1|1980-11-06|1982-06-03|Industriewerk Schaeffler Ohg, 8522 Herzogenaurach|PLASTIC CAGE FOR ROLLER BEARING|

---

US4418591A|1981-08-24|1983-12-06|Tri Tool Inc.|Pipe end preparation and cutoff tool|

---

US4439924A|1981-11-05|1984-04-03|Bettcher Industries, Inc.|Rotary hand knife|

---

US4516323A|1983-04-18|1985-05-14|Bettcher Industries, Inc.|Rotary hand knife and parts therefor|

---

US4637140A|1981-12-14|1987-01-20|Bettcher Industries, Inc.|Boning and trimming knife|

---

US4509261A|1981-12-14|1985-04-09|Bettcher Industries, Inc.|Boning and trimming knife and housing|

---

US4494311A|1982-10-13|1985-01-22|Mccullough Timothy J|Meat trimming knife|

---

DE3339558A1|1982-11-13|1985-05-09|Peters, Albert, 4000 Düsseldorf|WINNING DEVICE WITH TURN-TIP CHISEL AND CLOSED CHISEL BAG|

---

DE3327623C2|1983-07-30|1992-03-12|Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt, De|

---

US4575938A|1984-07-12|1986-03-18|Mccullough Timothy J|Meat trimming knife|

---

US4575937A|1984-10-22|1986-03-18|Mccullough Timothy J|Depth control gauge for meat trimming knife|

---

US4958943A|1985-10-25|1990-09-25|C.S.U. Ltd|Ball bearing|

---

US4829860A|1987-04-03|1989-05-16|Tri Tool Inc.|Segmented sliding bearing arrangement for portable lathe|

---

US4854046A|1987-10-07|1989-08-08|Bettcher Industries, Inc.|Rotary hand trimming knife|

---

US4865473A|1988-09-06|1989-09-12|The Torrington Company|Single split cage locking tab|

---

DE3911671A1|1989-04-10|1990-10-11|Schaeffler Waelzlager Kg|ROLLING BEARING CAGE|

---

US4942665A|1989-09-19|1990-07-24|Mccullough Timothy J|Meat trimming knife and drive system therefore|

---

DE3939279C1|1989-11-28|1991-01-31|Franke & Heydrich Kg, 7080 Aalen, De|

---

US5099721A|1990-09-28|1992-03-31|Bettcher Industries, Inc.|Steeling apparatus for annular rotary knife blades|

---

DE4038444A1|1990-12-01|1992-06-04|Schaeffler Waelzlager Kg|SLOTED ROD BODY|

---

DE4142801A1|1991-12-23|1993-06-24|Skf Gmbh|Needle bearing cage for machine assembly - has linking ends of cage with self locating claws with automatic alignment|

---

JP2502324Y2|1993-06-02|1996-06-19|株式会社石井超硬工具製作所|Rotary blade for tile cutter|

---

JPH07127646A|1993-10-29|1995-05-16|Ntn Corp|Retainer for roller bearing|

---

US5419619A|1993-12-17|1995-05-30|Wear And Tear, Inc.|Hubless wheel|

---

US5522142A|1994-06-30|1996-06-04|Bettcher Industries, Inc.|Rotary knife and slicing gauge|

---

US5630669A|1994-07-12|1997-05-20|Craft Bearing Company, Inc.|Split bearing, cage for split or non-split bearing and method of cutting a member of a split bearing|

---

US5529532A|1995-07-26|1996-06-25|Desrosiers; Marc|Minature motorized annular hand held dental saw|

---

DE29602481U1|1996-02-13|1996-03-28|Fag Oem & Handel Ag|Plastic comb cage for ball bearings|

---

US5664332A|1996-02-14|1997-09-09|Bettcher Industries, Inc.|Hand knife with cover|

---

US5692307A|1996-06-28|1997-12-02|Bettcher Industries, Inc.|Rotary knife blade|

---

US5761817A|1996-10-17|1998-06-09|Bettcher Industries, Inc.|Rotary hand knife|

---

WO1999006740A1|1997-07-31|1999-02-11|Thk Co., Ltd.|Ball screw device|

---

US5971413A|1997-09-18|1999-10-26|Meritor Heavy Vehicle Systems, Llc|Trunnion mount|

---

US6364086B1|1998-05-29|2002-04-02|Rexroth Star Gmbh|Chain of rolling elements chain arrangement|

---

US6769184B1|1998-07-22|2004-08-03|Bettcher Industries, Inc.|Low friction rotary knife|

---

DE19856024B4|1998-12-04|2006-05-24|Schaeffler Kg|Rolling bearing cage|

---

US6247847B1|1999-01-30|2001-06-19|Harken, Inc.|Flexible bearing cage|

---

JP4062574B2|1999-09-07|2008-03-19|Ｔｈｋ株式会社|Manufacturing method of rolling element assembly|

---

US6751872B1|1999-10-06|2004-06-22|Bettcher Industries, Inc.|Power operated rotary knife|

---

DE19958802C2|1999-12-07|2003-04-30|Fraunhofer Ges Forschung|Receiving and driving device for a rotary knife|

---

US6354949B1|2000-03-15|2002-03-12|Bettcher Industries, Inc.|Maintenance free flexible shaft drive transmission assembly|

---

DE10065169A1|2000-12-23|2002-07-04|Fag Ind Bearings Ag|Sheet metal cage for rolling bearings|

---

US6604288B2|2001-01-24|2003-08-12|Bettcher Industries, Inc.|Rotary knife|

---

US6665940B2|2001-02-26|2003-12-23|Electrolux Home Products, Inc.|Trimmer with output shaft locking mechanism|

---

JP2003013964A|2001-06-27|2003-01-15|Ntn Corp|Super-thin-walled rolling bearing and its retainer|

---

US6694649B2|2001-11-07|2004-02-24|Bettcher Industries, Inc.|Motor driven knife including depth limiting device|

---

US6615494B2|2002-01-15|2003-09-09|John W. Long|Boning and defatting rotary knife|

---

US6662452B2|2002-04-22|2003-12-16|Bettcher Industries, Inc.|Power operated rotary knife|

---

US6857191B2|2002-11-07|2005-02-22|Bettcher Industries, Inc.|Rotary knife having vacuum attachment|

---

US7178982B2|2003-11-13|2007-02-20|Hiwin Mikrosystem Corp.|Retaining device for rolling-element|

---

US7004633B2|2003-12-01|2006-02-28|Hiwin Technologies Corp.|Rolling element retainer|

---

CA2568631C|2004-05-21|2014-07-15|Wrh Walter Reist Holding Ag|Roller element|

---

JP4453465B2|2004-07-08|2010-04-21|株式会社ジェイテクト|Ball bearing cage and ball bearing|

---

US7207114B2|2004-08-19|2007-04-24|Bettcher Industries, Inc.|Rotary knife with improved drive transmission|

---

EP1801435A3|2004-11-11|2008-05-14|NSK Ltd.|Linear guide device and rolling element accomodating belt for the same|

---

US20060211966A1|2005-03-14|2006-09-21|Hatton Dale L|Knee joint for orthosis|

---

EP1953399B1|2005-11-01|2011-07-13|Thk Co., Ltd.|Movement guiding device|

---

US20080168667A1|2005-11-02|2008-07-17|David Spinato|Portable cutting device with guiding guard|

---

TWI273185B|2005-11-11|2007-02-11|Chieftech Prec Co Ltd|Ball chain|

---

CN101305193B|2005-11-18|2011-07-20|日本精工株式会社|Resin retainer and rolling bearing|

---

DE102006012623A1|2006-03-20|2007-09-27|Schaeffler Kg|A roller chain|

---

US8037611B2|2006-06-09|2011-10-18|Hantover, Inc.|Rotary knife with blade bushing|

---

US20070283573A1|2006-06-09|2007-12-13|Hantover, Inc.|Rotary knife with blade bushing|

---

US8661692B2|2006-10-27|2014-03-04|Bettcher Industries, Inc.|Split blade housing for power operated rotary knife|

---

US7563029B2|2006-11-01|2009-07-21|Precision Motion Industries, Inc.|Rolling element chain|

---

DE102007009811A1|2007-02-28|2008-09-04|Schaeffler Kg|Multiple component axial cage for a large rolling bearing comprises a metal band formed as a plate-like flat band cage and a window provided with sealing elements on its end lying opposite a guide rim |

---

DE102007012287A1|2007-03-08|2008-09-11|Forschungs- und Entwicklungsgesellschaft für technische Produkte mbH & Co. KG|Cutting knife, in particular for cutting food|

---

US7632018B2|2007-03-08|2009-12-15|Hiwin Technologies Corp.|Synchronous chain for a linear guideway|

---

TWM320616U|2007-04-13|2007-10-11|Ome Technology Co Ltd|Improved structure of ball retainer|

---

CH714655B1|2008-03-04|2019-08-15|Suhner Intertrade Ag|Apparatus for cutting, boning and degreasing slaughter animals.|

---

DE102009009005A1|2009-02-16|2010-08-19|Robert Bosch Gmbh|Linear motion device with step-free return passage|

---

US8057100B2|2009-02-20|2011-11-15|Hiwin Technologies Corp.|Roller holder for motion guide device|

---

US8448340B2|2010-02-01|2013-05-28|Bettcher Industries, Inc.|Large diameter notched blade and blade housing for power operated rotary knife|

---

US8756819B2|2010-04-12|2014-06-24|Bettcher Industries, Inc.|Power operated rotary knife with disposable blade support assembly|

---

CN101849568B|2010-06-12|2012-05-02|青岛骏辉畜禽屠宰设备有限公司|Push type belly washer|

---

US8926190B2|2010-12-27|2015-01-06|The Timken Company|Segmented bearing retainer|

---

US8739416B2|2011-07-25|2014-06-03|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8726524B2|2011-07-25|2014-05-20|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8745881B2|2011-07-25|2014-06-10|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8950076B2|2011-07-25|2015-02-10|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8806761B2|2011-07-25|2014-08-19|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8695222B2|2011-07-25|2014-04-15|Bettcher Industries, Inc.|Power operated rotary knife|

---

DE102011082809B4|2011-09-16|2013-04-18|Aktiebolaget Skf|Connection concept for a split bearing cage|

---

DE102011089078B4|2011-12-19|2014-11-27|Aktiebolaget Skf|Bearing cage and method for producing the same|

---

US8967873B2|2012-04-10|2015-03-03|Schaeffler Technologies Gmbh & Co Kg|Flexible bearing cage|

---

DE102012206450A1|2012-04-19|2013-10-24|Schaeffler Technologies AG & Co. KG|Wälzkörperführungskäfig and method for producing the same|

---

JP2013242018A|2012-05-22|2013-12-05|Jtekt Corp|Split cage for rolling bearing and rolling bearing using the same|

---

DE102012222799A1|2012-12-11|2014-06-12|Schaeffler Technologies Gmbh & Co. Kg|Two-piece bearing cage with retaining claws and ball bearings, comprising such a two-part bearing cage|

---

WO2014200125A1|2013-06-11|2014-12-18|세고스|Ball retainer, slide apparatus comprising same and mold for manufacturing same|US6769184B1|1998-07-22|2004-08-03|Bettcher Industries, Inc.|Low friction rotary knife|

---

US8726524B2|2011-07-25|2014-05-20|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8695222B2|2011-07-25|2014-04-15|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8806761B2|2011-07-25|2014-08-19|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8950076B2|2011-07-25|2015-02-10|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8745881B2|2011-07-25|2014-06-10|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8739416B2|2011-07-25|2014-06-03|Bettcher Industries, Inc.|Power operated rotary knife|

---

US8752299B2|2012-02-29|2014-06-17|Bettcher Industries, Inc.|Blade guide assembly for power operated rotary knife|

---

US10039567B2|2012-09-07|2018-08-07|Exsurco Medical, Inc.|Power operated dermatome with shielded rotary knife blade|

---

US9186171B2|2012-09-07|2015-11-17|Exsurco Medical, Inc.|Power operated debridement tool with disk knife blade|

---

US9592076B2|2012-09-07|2017-03-14|Exsurco Medical, Inc.|Power operated dermatome with rotary knife blade|

---

USD907205S1|2012-09-07|2021-01-05|Exsurco Medical, Inc.|Power operated rotary excision tool|

---

US9522473B2|2013-03-14|2016-12-20|Bettcher Industries, Inc.|Moveable lubrication assembly for power operated rotary knife|

---

GB2517536B|2014-04-11|2015-07-01|Hydra Ring Ltd|A connection system|

---

US10576649B2|2014-04-22|2020-03-03|Hantover, Inc.|Rotary knife blade with double beveled inside surface|

---

US10537356B2|2014-06-16|2020-01-21|Exsurco Medical, Inc.|Power operated rotary excision tool|

---

US10022146B2|2015-05-29|2018-07-17|Exsurco Medical, Inc.|Power operated rotary excision tool|

---

US9833919B2|2015-10-02|2017-12-05|Bettcher Industries, Inc.|Power operated rotary knife|

---

US10040211B2|2016-12-09|2018-08-07|Bettcher Industries, Inc.|Power operated rotary knife|

---

US10471614B2|2016-12-09|2019-11-12|Bettcher Industries, Inc.|Cam-actuated split blade housing for power operated rotary knife|

---

US10124500B2|2016-12-09|2018-11-13|Bettcher Industries, Inc.|Cam-actuated split blade housing for power operated rotary knife|

---

US10569441B2|2017-10-16|2020-02-25|Hantover, Inc.|Rotary knife providing material removal via suction|

---

CN108705572A|2018-05-28|2018-10-26|威宁县蒋凤明苦荞系列食品厂|cutter|

---

CN109707730B|2018-12-25|2020-02-28|人本集团有限公司|Open type double-row four-point angular contact ball bearing|

---

USD912489S1|2019-06-13|2021-03-09|Bettcher Industries, Inc.|Housing for a power operated rotary knife|

---

US11077571B2|2019-10-02|2021-08-03|Bettcher Industries, Inc.|Split blade housing with expansion sleeve assembly for power operated rotary knife|

法律状态:
2018-09-25| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

---

2018-10-16| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|

---

2019-04-16| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

---

2019-05-14| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/07/2012, OBSERVADAS AS CONDICOES LEGAIS. (CO) 20 (VINTE) ANOS CONTADOS A PARTIR DE 13/07/2012, OBSERVADAS AS CONDICOES LEGAIS |

优先权:

---

申请号 | 申请日 | 专利标题

---

US13/189,951|2011-07-25|

---

US13/189,951|US8806761B2|2011-07-25|2011-07-25|Power operated rotary knife|

---

US13/420,039|2012-03-14|

---

US13/420,039|US8739416B2|2011-07-25|2012-03-14|Power operated rotary knife|

---

PCT/US2012/046591|WO2013016020A1|2011-07-25|2012-07-13|Power operated rotary knife|

---