• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Retaining bolt (1) for a socket pipe connection (2) with a substantially circular arc-shaped locking body (3), wherein the locking body (3) in a cross-sectional plane in the radial direction transversely to its circular arc longitudinal extent (L) has a bolt cross-section (4), wherein the locking body (3) has a bent portion (5), wherein the locking body (3) along the bending portion (5) has a - seen in the radial direction - relative to the cross-section (4) reduced cross-section (6).
    公开号:AT512900A4
    申请号:T1065/2012
    申请日:2012-10-02
    公开日:2013-12-15
    发明作者:
    申请人:Duktus S A；
    IPC主号:
    专利说明:

    * 72344 30 / gb 1
    The invention relates to a retaining bolt for a socket pipe connection with a substantially circular arc-shaped locking body, wherein the locking body has a cross-section in the transverse direction in the radial direction transversely to its arcuate longitudinal extension of a cross-section.
    Such retaining bolts are already known and are used in sleeve pipe connections for train control. For example, EP 1 046 854 A2 shows the use of two generic retaining bolts for a socket pipe connection from a pipe end of a first pipe designed as a socket with a pipe end or insertion end of a second pipe to be inserted into the socket. The tube end of the first tube designed as a sleeve usually has a radially inwardly projecting circumferential limiting collar, which has one or more recesses in the direction of rotation which correspond approximately to the longitudinal extension of a hatch or are slightly larger, so that the retaining tabs engage over the recesses in FIG the socket connection can be introduced. The tube end of the second tube to be introduced into the sleeve typically has a circumferential abutment collar, which is designed, for example, as a welding bead.
    In order to produce a socket pipe connection, the pipe parts (sleeve and insertion end) are usually first joined together. Subsequently, for example, two mirror-image arcuate retaining bolts are introduced via a recess of the peripheral boundary collar on the sleeve in the interior of the sleeve until they rest against the bearing collar at the insertion of the second tube and then radially to the left or, shifted to the right, until a projection of the retaining bolt rests against one edge of the boundary collar. To hold the retaining bars in this position, a spacer - which may be made of a flexible plastic - can be placed between the retaining bars. In mounting position, the retaining bolts are located between the boundary collar of the sleeve and the bearing collar of the second tube. By means of a retaining latch on the left and on the right side, a uniform securing against tensile forces can be achieved on the whole.
    Such socket pipe connections of pipes or pipe fittings are used in particular in pipe systems in drinking water and wastewater. In such pipe systems, the pipes can be exposed to operating pressures of up to 100 bar or more, which can also affect high Längszugkräfte on the pipes.
    The pipes in such pipe systems typically have nominal widths of DN 80 to DN 1000. The sleeve ends formed as a sleeve are usually equipped with a peripheral sealing chamber and a trained in the end region of the sleeve, all-round Schubsicherungskammer. In the sealing chamber can be arranged to seal the socket pipe connection a sealing ring sealingly abuts in the mounting position both on the inner wall of the sealing chamber and on the outer wall of the inserted into the sleeve pipe end of the second tube. The thrust securing chamber has, in the direction of the sleeve end, a peripheral limiting collar, which comprises a peripheral thrust surface extending obliquely to the axial extent of the sleeve. In this boundary collar recesses are formed in the circumferential direction to introduce the retaining bar in the sleeve can. The inserted into the sleeve pipe end of a second tube has a circumferential bearing collar on which rest the retaining bolt in mounting position.
    The Längszugsicherung takes place in such Muffenrohrverbindungen characterized in that acting longitudinal tensile forces are derived via the abutment collar of the second pipe end to the retaining bolt and in further consequence on the circumferential boundary collar or its circumferential thrust surface in the thrust backup chamber of the sleeve. Depending on the nominal diameter of the pipes, a generic socket pipe connection is suitable for operating pressures of over 100 bar or permissible tensile forces of up to 200 kN. The bending radii of the tubes and the holding bar are optimally aligned for optimum traction control with the lowest possible component load. Ideally, the tube outer radius of the tube end to be inserted into the sleeve essentially corresponds to the inside of the locking bar of a retaining bolt and the outside radius of the latch bolt or its outer surface essentially corresponds to the inside radius of the limiting collar or its thrust surface.
    However, since the pipes or pipe fittings to be joined are subject to manufacturing tolerances, the bending radii of the components in the mounting position can exert strong bending forces on the retaining bolts, which in extreme cases can even lead to breakage of a retaining bolt. In particular pipes or socket pipes made of ductile cast iron - which are often used in pipe systems in drinking water and wastewater - have due to their production by a centrifugal casting process with a shaping rotating mold corresponding manufacturing fluctuations.
    The object of the invention is to avoid the disadvantages described above and to provide a comparison with the prior art improved retaining bolt. In particular, the retaining bolt should be more robust to manufacturing variations of the components of a socket pipe connection.
    This object is achieved by the features of claim 1. Advantageous embodiments of the invention are specified in the dependent claims.
    According to the invention, it is thus provided that the locking body has a bending section, wherein the locking body has a reduced cross-section with respect to the locking cross-section along the bending section as viewed in the radial direction.
    By providing a reduced cross-section of the locking body in the region of a bending section, the retaining bolt can readily absorb bending forces acting on it, since the retaining bolt can be bent essentially in the manner of a film hinge in the region of the bending section.
    This bendability is particularly advantageous when the retaining bolt at least partially, preferably substantially completely, consists of a plastic. Since a retaining bolt occurs in the assembly position as a connecting element between the two pipes to be connected, the use of a retaining bolt made of plastic is particularly advantageous or necessary where the interruption of the electrical conductivity of the pipes to be connected is required. This is the case in particular in installation situations in which unwanted leakage currents can occur without such an interruption of the electrical conductivity, for example when the pipes to be connected are water pipes which are laid in the region of tram rails in the ground.
    However, where conventional retaining bolts made of ductile cast iron due to their material have a relatively high ductility, in particular due to the lower ductility of the material used in retaining plastic latches increased flexibility of the retaining bolt by a bent portion with a reduced cross section of advantage. Due to the increased bendability of the retaining bolt due to the bending section with the reduced bolt cross-section can also very pressure-resistant plastics as a material for the retaining seat! are used, which are often very brittle. These are often reinforced with at least 40% glass fiber reinforced materials, which do not show great creep properties even under constant pressure load. In addition, retaining bolts made of plastic compared to retaining bolts made of cast iron can be produced more cost-effective, in particular retaining bolt for pipes up to about 16 bar operating pressure.
    The plastic materials used for the holding bars are, for example, the glass-reinforced plastics SCANAMID 6 B12A F45 from Polykemi AB or Grivory XE 5041 from EMS-Grivory. In particular, in the use of brittle and / or pressure-resistant plastics, the stretching of the rest of the bolt body by existing radius differences of sleeve of the first tube and insertion of the second tube can be kept within limits by the bending section that in the mounting position under pressure no cracks in the region of the internal locking radius occur on the retaining bolt.
    According to a preferred embodiment of the invention it can be provided that the minimum cross-section is 50% to 80%, preferably 60% to 70%, particularly preferably about 66%, of the cross-section of the bar. It can preferably be provided that a length of the bending section is at least 10%, preferably at least 15%, of the longitudinal extent of the locking body.
    In order to be able to bring the retaining bolt into a suitable end position when inserted into a sleeve pipe connection, it can be preferably provided that a projection is arranged on the bolt body, wherein the projection protrudes from the bolt body, preferably in a direction perpendicular to the circular plane of the arcuate bolt body. It can preferably be provided that the projection is arranged at one end of the locking body.
    It has proven to be particularly advantageous when the bending section is arranged in the region of the projection. This is particularly advantageous if the insertion end of the second tube aulweist has a tube outer radius, which is greater than the inner locking radius of the retaining bolt. In such a case, in particular, the ends of the retaining bolt are exposed to heavy loads, since they represent the contact points of a bend of the retaining bolt, wherein the bend causes an expansion of the locking inner radius of the retaining bolt in the direction of the tube outer radius of the insertion end.
    Particularly advantageous is that embodiment of the invention in which a transition from the cross-section of the cross-section to the cross-section along the longitudinal extent is substantially arcuate. In such a not abrupt but essentially continuous transition, the breaking strength of the transition point can be increased.
    Protection is also desired for a socket pipe connection according to claim 9, comprising - a first pipe end of a first pipe designed as a sleeve, the sleeve having at least in regions a radially inwardly projecting circumferential boundary collar, - a second pipe end of a second pipe to be inserted into the socket wherein the second tube end at least partially has a circumferential bearing collar, - at least one retaining bolt according to one of claims 1 to 8, wherein the retaining bolt between the Begrenzungsbund and the Anlagebund is arranged.
    In a preferred embodiment, at least one clamping device may be provided, comprising a first retaining bolt, a second retaining bolt formed in mirror image relative to the first retaining bolt, and a spacer, wherein, in the mounting position of the spacer in the circumferential direction with respect to the circular plane, the arcuate retaining bolt is arranged between the first retaining bolt and the second retaining bolt , preferably between mutually facing projections of the two retaining bolts.
    For larger pipe diameters, for example with nominal diameters from DN 300 to DN 500, several clamping devices can be provided. For example, two clamping devices for a socket pipe connection can be provided, which thus comprise a total of two identical first retaining bolts and two similar, second retaining bolts designed mirror-inverted to the first retaining bolts.
    Further details and advantages of the present invention will be explained with reference to the following description of the figures. It shows or show:
    1 a is a plan view of a proposed Halterieget with respect to a circular plane of the retaining bolt,
    1b is a cross-sectional view of the retaining bolt of Figure 1a according to the radial section plane A-A in Figure 1a,
    Fig. 1c is a cross-sectional view in the region of the bending portion of
    Retaining bolt of Figure 1a according to the radial section plane B-B in Figure 1a,
    2 is a side view of a retaining bolt according to another embodiment of the invention,
    3a is a perspective view of the retaining bolt of Figure 2,
    3b is another perspective view of the retaining bolt of Figure 2,
    4 shows a proposed socket pipe connection during assembly,
    5 is a proposed socket pipe connection in a partially broken view,
    Fig. 6a is a front view along the tube axis to a proposed socket pipe connection and
    Fig. 6b is an enlarged detail of a portion of Fig. 6a.
    1a shows a plan view of a proposed holding bar 1 with a view towards a circle plane K of the holding bar 1. The holding bar 1 has an arcuate locking body 3, wherein the locking bar 3 has an inner bar inner radius R, and an outer bar outer radius Ra in the radial direction. The locking body 3 has a longitudinal extent L along its arcuate extent. At one end 3a of the locking body 3, a projection 7 extending substantially perpendicular to the circular plane is arranged. In the area of the projection 7, the locking body 3 has a bending section 5, which has a reduced cross-section 6 (see FIG. 1c) which is smaller in the radial direction than the locking cross-section 4 (see FIG. 1b). The transition 8 from the bolt cross section 4 to the lower cross sections is formed arcuate or rounded, whereby the breaking strength of the transition point can be increased. Along the arcuate extent of the locking body 3, the bending portion 5 has a length LB. Viewed in the radial direction, the thickness D of the locking body 3 at its widest point, for example, 24 mm, whereas the radial thickness Db of the bending portion 5 may be at its widest point, for example, 16 mm. 4 «* · ·· ··· *
    FIG. 1b shows a cross-sectional illustration of the retaining bolt 1 of FIG. 1a according to the radial sectional plane A-A in FIG. 1a. In this illustration, the tube end 11a of a second tube 11 is additionally indicated by dashed lines, which has a circumferential bearing collar 12 in the form of a weld bead with respect to its tube axis X. The locking body 3 has a locking cross-section 4 and a collar abutment surface 16 adapted to the contour of the abutment collar 12, so that the retaining bolt 1 can be applied to the abutment collar 12 essentially in a form-fitting manner. The second tube 11 has a tube outer radius Rr. The circle plane K of the retaining bolt 1 is substantially perpendicular to the pipe axis X and the internal bolt radius R, corresponds approximately to the pipe outer radius Rr of the second tube 11, so that the retaining bolt 1 are applied with its pipe abutment surface 15 substantially form-fitting manner to the outer surface of the second tube 11 can. In this illustration, the lower cross-section 6 of the bending section 5 is already indicated by dashed lines. In this figure, not shown is the surrounding the retaining latch 1 sleeve 9a of the first tube 9 of a socket pipe connection 2. Such a sleeve 9a usually has at the socket end a circumferential boundary collar 10, which extends obliquely to the axial extent of the sleeve 9a and the tube axis X. , peripheral thrust surface 10a shows. In the mounting position, the sleeve bearing surface 17 of the locking element 3, which likewise extends obliquely to the tube axis X and correspondingly to the arcuate configuration of the locking element 3, rests against this thrust surface 10a of the sleeve 9a. A Längszugsicherung can be done by the fact that acting longitudinal tensile forces on the abutment collar 12 of the second tube end 11a on the retaining bars 1 and in the subsequent sequence on the peripheral boundary collar 10 and its peripheral thrust surface 10a are derived in the thrust backup chamber of the sleeve 9a.
    1c shows a cross-sectional view in the region of the bending section 5 of the retaining bolt 1 of FIG. 1a according to the radial sectional plane B-B in FIG. 1a. The retaining bolt 1 is located in the mounting position as in FIG. 1b, whereby also the pipe end 11a of the second pipe 11 is indicated by dashed lines in the mounting position. As can be seen in comparison with FIG. 1b, in the region of the bending section 5, the holding bar 1 has a reduced diameter with respect to the cross-section 4 ♦ ················································································. «T •••• ··« «* ·» ·· *. * · * ♦ · *% e • * * * I · »t # * 9 *
    Low cross section 6 on. Also, the bending portion 5 and the projection 7, in contrast to the rest of the locking body 3 is not on the outer surface of the second tube 11 at. By the minor cross section 6 of the bending section 5 and the given radial clearance S, for example, about 1 mm to about 4 mm between the bending section 5 and projection 7 and the outer jacket of the second tube 11, the bending section 5 can bend in the manner of a film hinge to the Retaining plate 1 despite prevailing tolerance variations with respect to the tube outer radius Rr of the second tube 11 to the second tube 11 to create.
    Fig. 2 shows a side view of a retaining bolt 1 according to a further embodiment of the invention with a view towards the radially outer sleeve bearing surface 17 of the locking body 3 and Fig. 3a and 3b show perspective views of the retaining bolt of Fig. 2. In mounting position which is in relation to the Pipe axis X inclined sleeve bearing surface 17 on a not shown here circumferential thrust surface 10a of a peripheral boundary collar 10 of a sleeve 9a designed as the first pipe end of a first tube 9 at. Dashed lines indicate concealed in this line of sight collar abutment surface 16, which is formed according to the formation of an abutment collar 12 at the tube end 11a of the second tube 11 (see Fig. 1b). The protrusion 7 formed at the end 3a of the locking body 3 has a recess 18 and a nose 7a, whereby a retaining bolt 1b formed between the recesses 18 of the two retaining bolts 1a, 1b in the context of a socket pipe connection 2 forms a second mirror image with respect to a first retaining bolt 1a a spacer 14 can be arranged and held in position (see Fig. 4).
    Fig. 4 shows a socket pipe connection 2 during assembly in a perspective view. In this example, the socket pipe connection 2 comprises a pipe end of a first pipe 9 designed as a sleeve 9a, a second pipe end 11a of a second pipe 11 to be inserted into the sleeve 9a, and a total of two clamping devices 13. A clamping device 13 consists of a first retaining bolt 1a, a mirror image to the first retaining jaw 1a formed second retaining bolt 1b and a to be arranged between the retaining bars 1a, 1b spacer 14th
    To produce the socket pipe connection 2, the pipe end 11a of the second pipe 11 is introduced into the sleeve end 9a of the first pipe 9 in a known manner until it abuts the end face of a corresponding stop within the sleeve 9a. As a result of the collar recesses 19 on the limiting collar 10 of the sleeve 9a, two mirror-inverted retaining clips 1a, 1b can subsequently be inserted successively into the sleeve 9a until their respective collar abutment surface 16 bears against the abutment collar 12 of the pipe end 11a. The first retaining latch 1a is then displaced counterclockwise relative to its insertion direction along the abutment collar 12 until its projection 7 abuts against the limiting collar 10 at one end of the collar recess 19. Likewise, after its insertion, the second retaining bolt 1b is displaced clockwise relative to its insertion direction along the abutment collar 12 until its projection 7 rests against the limiting collar 10 at the other end of the collar recess 19. Between the projections 7 of the two retaining seals 1a, 1b, a spacer 14 is subsequently arranged in order to fix the retaining seals 1a, 1b in a positionally stable manner.
    In the example shown, a total of two clamping devices 13 are provided for the socket pipe connection 2. Depending on the pipe diameter, only one or more than two such clamping devices 13 can be arranged along the circumference of a socket pipe connection 2.
    Fig. 5 shows a side view of the socket pipe connection 2 of Fig. 4, wherein the sleeve 9a of the first tube 9 is partially broken. Tensile forces acting along the tube axis X can be applied to the collar 12 of the second tube 11, the collar abutment surface 16 of the retaining clips 1a, 1b, the sleeve abutment surface 17 of the retaining clips 1a, 1b, and the thrust surface abutting on a traction effect in such a sleeve joint 2 10a of the sleeve 9a of the first tube 9 are derived in the sleeve 9a.
    FIG. 6a shows a front view of the connected socket pipe connection 2 according to FIG. 4 in a viewing direction along the pipe axis X, and FIG. 6b shows an enlarged one
    Detailed representation of the marked area A of FIG. 6a. By the bent portion 5 with its relative to the cross-section 4 cross-section reduced cross-section 6 in the region of the end 3a of the locking body 3 of a retaining bolt 1a, 1b of the respective locking body 3 in the manner of a film hinge is bendable. As a result, in particular bending forces acting on the holding bars 1a, 1b due to manufacturing variations of the components of the socket pipe connection 2 - in particular fluctuating internal bolt radius Rj of a holding bolt 1a, 1b, pipe outer radius Rr of the second pipe 11, sleeve bearing surface 17 of a holding bolt 1a, 1b and thrust surface 10a of the sleeve 9a - be well received.
    Innsbruck, on October 1, 2012
    权利要求:
    Claims (10)
    [1]
    ·· ·· ** ·· ······················ * t · · ···· ♦ ·. 1. a sleeve pipe connection (2) with a substantially circular arc-shaped locking body (3), wherein the locking body (3) in a cross-sectional plane in the radial direction transversely to its circular arc longitudinal extent (L) has a bolt cross-section (4), characterized in that the locking body (3 ) Has a bending section (5), wherein the locking body (3) along the bending section (5) has a - seen in the radial direction - compared to the cross-section of the cross-section (4) reduced cross-section (6).
    [2]
    2. retaining bolt according to claim 1, characterized in that the minor cross section (6) 50% to 80%, preferably 60% to 70%, more preferably about 66%, of the cross-section of the bolt (4).
    [3]
    3. retaining bolt according to claim 1 or 2, characterized in that a length (Lb) of the bending portion (5) at least 10%, preferably at least 15%, of the longitudinal extent (L) of the locking body (3).
    [4]
    4. retaining bolt according to one of claims 1 to 3, characterized in that on the locking body (3) a projection (7) is arranged, wherein the projection (7) from the locking body (3) protrudes, preferably in a direction perpendicular to the circle plane (K ) of the circular-arc lock body (3).
    [5]
    5. retaining bolt according to claim 4, characterized in that the projection (7) at one end (3a) of the locking body (3) is arranged.
    [6]
    6. retaining bolt according to claim 4 or 5, characterized in that the bending portion (5) in the region of the projection (7) is arranged
    [7]
    7. retaining bolt according to one of claims 1 to 6, characterized in that a transition (8) from the bolt cross section (4) on the lower cross-section (6) along the longitudinal extent (L) is substantially arcuate.
    [8]
    8. retaining bolt according to one of claims 1 to 7, characterized in that the retaining bolt (1) at least partially, preferably substantially completely, consists of a plastic.
    [9]
    9. socket joint connection (2) comprising - as a sleeve (9a) formed first pipe end of a first tube (9), wherein the sleeve (9a) in the interior at least partially has a radially inwardly projecting circumferential boundary collar (10), - in the Muff (9a) to be introduced second pipe end (11a) of a second tube (11), wherein the second pipe end (11a) at least partially a circumferential bearing collar (12), - at least one retaining bolt (1) according to one of claims 1 to 8, wherein the retaining bolt (1) is arranged between the limiting collar (10) and the abutment collar (12).
    [10]
    10. Socket pipe connection according to claim 9, characterized in that at least one clamping device (13) comprising a first retaining bolt (1a), a mirror image of the first retaining bolt (1a) formed second retaining bolt (1b) and a spacer (14) is provided, wherein in Mounting position of the spacers (14) in the circumferential direction with respect to the circular plane of the arcuate retaining bolt (1a, 1b) between the first retaining bolt (1a) and the second retaining bolt (1b) is arranged, preferably between mutually facing projections (7) of the two retaining bolt (1a, 1b). Innsbruck, on 1, October 2012
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2035736B1|2012-11-28|Spigot-and-socket joint
    EP2394087B1|2018-04-25|Fitting for thick walled pipes and method for producing same
    DE102010013412B4|2014-05-22|Exhaust pipe for a motor vehicle and exhaust system
    DE19651817C2|1999-05-12|Pipe press coupling
    EP2904301B1|2017-11-08|Retaining catch for a socket pipe connection
    EP2322831B1|2013-05-29|Pipe press coupling, in particular for swaging multi-layer tubing and method for applying a pipe press coupling
    DE102015000341A1|2016-07-21|Joint arrangement for pipelines
    EP1184572B1|2008-06-11|High pressure seal
    EP2196716A1|2010-06-16|Hose coupling
    EP2019246A2|2009-01-28|Assembly for fixing a cable with a profiled external diameter and assembly method
    EP1657372A2|2006-05-17|Pipe connector with variable angle
    EP1046854A2|2000-10-25|Socket connector for joining two pipes and a locking device for a socket connector
    DE10146674A1|2002-04-18|Sealing ring for connection between main pipe and second pipe has lip fitting against main pipe and upper and lower lips fitting against second pipe, saw-tooth ridges pressing lower lip against second pipe
    EP0950846B1|2008-03-26|Piping system
    DE3146272A1|1983-06-01|"DEVICE FOR ATTACHING A HOSE TO A CONNECTING PIECE"
    EP3165804B1|2017-11-29|Connection of two pipe break seal ring and sealing assembly
    DE19542335C3|2003-12-18|Flexible house entry for a gas pipe
    DE19851162A1|2000-05-31|Restrained push-in socket
    DE10002974B4|2010-07-15|Pipe coupling with tolerance compensation
    DE102017011647A1|2019-06-19|Pipe coupling for pressing by means of rubber rings for pipes, in particular made of plastic
    DE8433831U1|1985-02-14|PIPE CONNECTOR FOR THE END OF TWO PIPES MADE OF METAL MATERIAL
    DE102016223744A1|2018-05-30|Brake system with a connecting element
    DE102016223745A1|2018-05-30|Connecting element for a brake system and brake system with a connecting element
    DE202017100138U1|2017-03-27|Connecting element for a brake system and brake system with a connecting element
    DE102008049497A1|2010-04-01|Flexible conducting element has metal bellow or metal corrugated hose, which is surrounded by network, where bend protection elements are arranged externally at conducting element
    同族专利:
    公开号 | 公开日
    US10359136B2|2019-07-23|
    WO2014053216A1|2014-04-10|
    US20150204469A1|2015-07-23|
    AT512900B1|2013-12-15|
    EP2904301B1|2017-11-08|
    EP2904301A1|2015-08-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1046854A2|1999-04-24|2000-10-25|Tiroler Röhren- und Metallwerke Aktiengesellschaft|Socket connector for joining two pipes and a locking device for a socket connector|
    DE102006031582A1|2006-06-30|2008-01-03|Tiroler Röhren- und Metallwerke AG|socket connection|
    US3480302A|1966-02-24|1969-11-25|Mcwane Cast Iron Pipe Co|Internal lock ring bell and spigot joint|
    US3751078A|1971-08-26|1973-08-07|Brian J O|Pipe joints|
    FR2288929B1|1974-07-05|1977-06-24|Pont A Mousson|
    JP4190502B2|2005-01-19|2008-12-03|東京都|Pipe connection structure|
    US8967209B2|2012-03-29|2015-03-03|Superior Power Tool Co., Ltd.|Adapter structure for a gas fuel bottle|
    WO2015089313A1|2013-12-12|2015-06-18|United States Pipe And Foundry Company, Llc|Separation-resistant pipe joint|WO2015089313A1|2013-12-12|2015-06-18|United States Pipe And Foundry Company, Llc|Separation-resistant pipe joint|
    JP6689762B2|2017-01-11|2020-04-28|愛三工業株式会社|Evaporative fuel processor|
    法律状态:
    2016-06-15| PC| Change of the owner|Owner name: DUKTUS ROHRSYSTEME WETZLAR GMBH, DE Effective date: 20160415 |
    2017-01-15| HC| Change of the firm name or firm address|Owner name: DUKTUS (PRODUCTION) GMBH, DE Effective date: 20161129 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1065/2012A|AT512900B1|2012-10-02|2012-10-02|Retaining bolt for a socket pipe connection|ATA1065/2012A| AT512900B1|2012-10-02|2012-10-02|Retaining bolt for a socket pipe connection|
    EP13795154.7A| EP2904301B1|2012-10-02|2013-09-18|Retaining catch for a socket pipe connection|
    PCT/EP2013/002802| WO2014053216A1|2012-10-02|2013-09-18|Retaining catch for a socket pipe connection|
    US14/675,941| US10359136B2|2012-10-02|2015-04-01|Retaining catch for a socket pipe connection|
    [返回顶部]