• 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:
    The box comprises a base (10) with a hinged lid (20) and a tray (40) carrying fiber splitting and splicing means (AF, EF) and output adapters (AS). A side opening (13) in the base (10) is closed by a sealing stopper (30) and a front face (42) of the tray (40) includes a side anchoring element (45) that is provided with anchoring cutouts (45b) and that can be seated on the sealing stopper (30). The side anchoring element (45) receives a sealing element (50) with front slots (51) designed to receive a terminal cable (CT). The lid (20) has a rear edge (22a) with an extension seated against the sealing element (50) and another extension forcing a terminal cable (CT) into an anchoring cutout (45b).
    公开号:ES2891399A2
    申请号:ES202290003
    申请日:2020-07-08
    公开日:2022-01-27
    发明作者:Vieira Thiago Deconto
    申请人:Furukawa Electric LatAm SA；
    IPC主号:
    专利说明:

    [0004] field of invention
    [0005] [001] The present invention relates to a termination and branch (splice) box for optical cables, normally called a "termination box", which is applied to aerial fiber optic networks called FTTH ("optical fiber to the home"). ") to protect an optical splice ("splitter") between an optical fiber of a multifiber distribution cable received in the box and multiple terminating optical cables ("drop" cables), generally in the form of compact ("low-friction" ") and/or optical splices by fusion between one or more optical fibers of the distribution cable and a respective optical branch cable (multifiber optical continuation cable).
    [0007] Background of the invention
    [0008] [2] Fiber optic networks require the provision of splice points and terminal points, for user activation, which are protected by termination and/or distribution boxes generally installed externally and aerially and fixed to a secure cable, on a pole or the facade of a building.
    [0009] [3] At a splice point, for example, one or more fibers of a distribution cable received in a termination/distribution box are fusion spliced to the corresponding fibers of a drop cable exiting said box to reach a new splice point or a user activation endpoint.
    [0010] [4] However, at a user activation point, one of the optical drop cable fibers, arriving at an aerial termination box, may pass through a "splitter" to provide termination cables directed to air end users. network. The fibers of the optical drop cable, which arrive at a termination box, but which are not connected to a respective termination cable ("drop" cable), can pass through the box, without changes or splices to a new cable extension. , to continue to a new splice point or user activation point.
    [0011] [5] These termination boxes must be built to receive at least one multifiber distribution cable and to allow the exit of one or more drop cables and even a plurality of compact termination ("drop") cables, which requires space internal for fusion splices in the "splitter" and for drop cables.
    [0012] [6] A problem raised by these boxes is the risk of causing damage to the compact terminal cables that are already installed in network maintenance operations when the installer needs to move the internal fiber housing elements in the box, often causing undue bending of the compact optical termination cables and even damaging the connection adapters of these termination cables, which need to be disconnected from the adapters so that the installer has access to the fusion areas of the fibers.
    [0013] [7] To reduce these risks, termination boxes have been proposed with the internal housing elements of the compact termination cables physically separated from the internal housing elements of the multi-fiber drop cables, taking into account that the installers of drop cables multifiber taps are responsible for the fiber fusion operations, while compact termination cable installers are responsible for connecting these cables to the respective adapters provided inside the box and to the "splitter". With the physical separation of said elements hosting, each installer has their respective work area separate from the other's work area, reducing the chance of one team damaging the other's work.
    [0014] [8] Despite minimizing the risks of causing the aforementioned damages and reducing the number of costly maintenance calls/attendances for multi-fiber drop cable network or compact termination cables, this well-known solution of physical separation of the cable housing elements is complex and expensive.
    [0015] [9] Another deficiency of the termination or diversion boxes is related to the sealing solutions used, which must be of a high degree of sealing, which adds to their constructive complexity and the consequent production costs. In some solutions, the simplification in construction leads to deficiencies in the degree of tightness of the sealing rings (grommets) at the cable entries and exits, allowing moisture and insects to enter the interior of the box. In other solutions, the increase in the degree of tightness is achieved with high construction complexity and undesirable production costs.
    [0016] [10] Known termination boxes have yet another drawback resulting from the fact that they allow the lid to close even if the installer has not properly anchored the compact cable termination ("drop" cable), in that case allowing the compact cable and, therefore, the data transmission network is susceptible to undesirable and even unacceptable movements by current regulations.
    [0017] [11] Examples of termination boxes of the type considered here can be found in US36,226,434 and US9,310,579.
    [0018] [13] As a consequence of the aforementioned drawbacks, in its patent application BR 102018005815 0, the depositor proposed a termination and derivation box for optical access networks, for aerial installation, which presents a relatively simple construction, with a reduced number of parts, easy and safe handling of the fiber splicing elements by the respective team of installers, without interference with the elements of connection of the termination cables that must be handled by another team of installers, this box being also equipped with a high degree of tightness and a double sealing system, which acts on the distribution cables, on the branch cables (continuation ) and on the termination cables allowing to contain large amounts of water in a first stage and even small droplets and insects in a second stage, with drainage between the two stages.
    [0019] [14] It so happens that said box, object of patent application BR 102018 005815-0, is designed to be mounted only in a horizontal position, with the cable entry and exit openings placed on opposite sides of a box base , on whose lower horizontal edge there is a hinged lid. This previous embodiment does not allow the box to be mounted in a vertical position.
    [0020] [15] Another particular aspect of the form of embodiment of the applicant's preceding box is related to the high number of elastomeric sealing elements, of relatively complex and expensive construction, to provide sealing, at the individual and dual level, of the passage of each distribution or branch cable (continuation) through the respective side opening of the box and a pair of sealing elements for the exit of 4 termination ("drop") cables on each side of the optical box.
    [0022] Description of the invention
    [0023] [16] Considering the preceding statement, the present invention aims to provide a termination and tapping box for optical access networks, for aerial installation, with a simple and versatile construction and with a substantially lower cost than similar boxes, a reduced number of sealing elements to obtain the desired degree of tightness and that allows its installation in a horizontal or vertical position on the securing cable or on the wall of a building or even in a vertical position, directly against a post, which guarantees a easy and safe handling of the fiber splicing elements by the respective team of installers, without interfering with the connection elements of the termination cables that must be handled by another team of installers, regardless of the installation position of the box.
    [0024] [17] Yet another objective of the invention is to provide a termination and optical shunt box for aerial installation, as stated above, which guarantees the correct anchoring of the termination cables ("drop" cables) when the lid is closed.
    [0025] [18] The junction and termination box in question is of the type comprising: a base with a rear wall and a front edge defined by peripheral walls; a lid having a top wall and a rear edge defined by peripheral walls that can be moved between a closed position, supported and locked against the base, and an open position; and a tray articulated to the base that has a rear face that has means for housing fiber sections and for splicing and dividing fibers ("splitters"), and a front face that has output adapters connected to fiber sections and to them. respective connectors of a terminal cable, the tray being angularly movable between a first position, with its rear face resting on the base, and a second position with its rear face exposed to the installer.
    [0026] [19] According to the invention, a peripheral wall of the base, not hinged to the lid, is provided with a single lateral opening, defining a lowered extension of the front edge of the base and with its cross section, not occupied by a optical cable, closed by an elastomeric sealing plate and with a recessed anterior region.
    [0027] [20] The tray incorporates, on its front face and in a single piece, a lateral anchoring element, in the form of a gutter, with the front edges provided with anchoring cutouts and the rear edges resting on the sealing plate, in the interior of the lowered front region, when the tray moves to the first position resting on the base, receiving the lateral anchoring element, on its front side, a sealing element, made of elastomer and provided with front grooves aligned with the cutouts of anchoring of the lateral anchoring element, each anterior slot and each pair of anchoring cutouts, aligned with each other, snugly receive a terminal cable as an extension of the rear edge of a peripheral wall of the lid, resting against the sealing element, compresses to the latter, around a respective terminal cable, said peripheral wall of the cover presents another extension of the rear edge, more internal and forces the terminal cable towards the inte rior of the opposite anchor cutout, when closing the lid.
    [0028] [21] The embodiment summarized above is simple, versatile and low cost, and can be installed horizontally or vertically, also guaranteeing easy and safe handling of the fiber splicing elements by the different teams of installers and ensuring a correct anchoring of the termination cables ("drop" cables) when the cover is closed.
    [0030] Brief description of the drawings
    [0031] [22] Next, the invention will be described on the basis of the attached drawings, which constitute an example of an embodiment of the invention and in which:
    [0032] [23] Figure 1 is a perspective view of the termination and bypass box of the invention, with its cover closed on the base and with a lateral opening of the latter housing a sealing plate provided with two pairs of transverse holes for the watertight or sealed passage of a corresponding distribution or branch cable;
    [0033] [24] Figure 2 is a perspective view of the box of figure 1, when viewed from the lower side of the base which is provided with a concave cradle for fixing the box, in a vertical position, on a post;
    [0034] [25] Figure 3 is a perspective view of the box of figures 1 and 2 in a horizontal mounting condition, for example, on a safety cable, with the lid open and the tray resting on the base and having its front face that presents, on a side opposite to that of the lateral opening of the base, two superimposed sets of eight angularly retractable adapters, for the connection of termination cables (drop cables);
    [0035] [26] Figure 4 is a perspective view of the box of figure 3, with the lid open and the tray angularly displaced to a position in which it exposes, to the installer, its rear face, which has means for housing sections of fiber and fiber splicing and splitting ("splitters") and a termination cable; Figure 5 is an expanded perspective view of a first group of components of the termination and tap box, associated with the base and lid ;
    [0036] [27] Figure 5A is an expanded perspective view of a second group of components of the termination and branch box, associated with the tray;
    [0037] [28] Figure 6 represents a plan view of the rear face of the tray;
    [0038] [29] Figure 7 represents a cross-sectional view of the closed termination box;
    [0039] [30] Figure 8 represents a partial and enlarged longitudinal section view of the termination and branch box, closed and illustrating the sealing plate that acts on a distribution or branch cable and also the anchoring element that acts on a cable. of termination.
    [0041] Description of the invention
    [0042] [31] As illustrated in the preceding drawings, the optical termination and junction box in question comprises a base 10 and a cover 20 hinged to the base 10, both made of an electrically non-conductive material, with a base 10 that it incorporates, in one piece, a rear wall 11 (figures 2, 4 and 5) and peripheral walls 12 defining at least one leading edge 12a, preferably multiple leading edges 12a, which define, among themselves, a channel 12b. One of the peripheral walls 12, not hinged to the cover 20, is provided with a single lateral opening 13 (figure 5), defining a recessed extension of the front edge 12a of the base 10, for the passage of multifiber optical cables CO, which may be defined by a multifiber distribution cable or by one or more multifiber drop cables . A cross section of the lateral opening 13, not occupied by a CO multifiber optical cable, passing through said opening, is closed by a sealing plate 30, made of elastomer, anchored in said lateral opening 13 and presenting a lowered anterior region 31 , whose function will be described later.
    [0043] [32] According to the illustrated embodiment, the sealing plate 30 is provided in its middle and rear position with a groove 32 (figure 8) in which a built-in projection 15 is housed, longitudinally and medially, along of at least part of the lowered section of the leading edge 12a of the base 10, which defines the lateral opening 13. In this way, the sealing plate 30 is firmly fixed to the leading edge 12a of the base 10.
    [0044] [33] According to the invention, the sealing plate 30 is provided with the transverse holes 33, 34 having one or more diametrical patterns, while the transverse holes 33,34, of different patterns in the illustrated example, have one. of the ends closed by a respective collapsible side wall portion 35 of the sealing plate 30 (figure 7). Thus, it suffices that said collapsible side wall portion 35 be easily removed, to allow the passage of a multifiber optical cable CO through the respective transverse hole 33, 34, to enter or exit the box.
    [0045] [34] In order to guarantee an adequate degree of sealing between the sealing plate 30 and each multifiber optical cable CO, which passes through the sealing plate 30, each transverse hole 33, 34 presents at least part of its extension with a smaller diameter than the CO multifiber optical cable.
    [0046] [35] Lid 20 has a top wall 21 and peripheral walls 22 that define at least one and preferably multiple rear edges 22a, which define between them, a lid channel 22b, lid 20 being hinged to base 10, preferably on the peripheral wall 12 of the latter, devoid of the lateral opening 13, to be able to move between an open position (figures 3 and 4), with its rear edge 22a away from the front edge 12a of the base 10, to allow access inside the box by the fiber optic network operator/installer, and a closed position (figures 1, 2, 7 and 8), anchored to the base 10 in which the front and rear edges 12, 22a, of the base 10 and of the lid 20, in the region devoid of the lateral opening 13, are supported by each other and, preferably, anchored to each other forming a sealing labyrinth.
    [0047] [38] In the illustrated embodiment, the rear edge 22a of the lid 20 is in the form of a small channel into which a sealing gasket 24 is inserted (figures 3, 4, 7 and 8), in the form of a cord of elastomeric material to provide sealing in the support region between the base 10 and the cover 20.
    [0048] [39] The optical termination box also comprises a tray 40 that has an edge hinged to the base 10 and that has a rear face 41 and a front face 42, the tray 40 being angularly movable between a first position, with its rear face 41 resting on the base 10, on the lateral opening 13 and exposing the front 42 to the multifiber optical cable installer CO, and a second position in which the rear face 41 is exposed to the terminal cable installer CT.
    [0049] [40] The tray 40 incorporates, on its front face 42 and in a single piece, a lateral anchoring element 45 in the form of a gutter that has the front edges 45a provided with the anchoring cutouts 45b and the rear edges 45c resting on the sealing plate 30 inside the lowered anterior region 31 thereof when the tray 40 is brought to the first position resting on the base 10. The lateral anchoring element 45 receives an elastomeric sealing element 50 provided with anterior cutouts 51 aligned with the anchoring cutouts 45b of the lateral anchoring element 45. The front cutouts 51 extend from a lateral face of the sealing element 50, towards the outside of the box, to an opposite and collapsible side wall 52 that closes the adjacent end of the set of front cutouts 51. When placing a terminal cable CT in one of said front cutouts 51, the respective portion of the opposite side wall 52 is broken and removed. ada. This arrangement ensures the sealing of previous or used cuttings.
    [0050] [41] According to the previous embodiment, each anterior groove 51 of the sealing element 50 and each pair of anchoring cutouts 45b, aligned with each other, tightly receive a terminal cable CT, promoting an adequate axial retention of the latter and also a tightness between each terminal wire in the sealing element 50.
    [0051] [42] According to the preceding embodiment, an extension of the rear edge 22a of the peripheral wall 22 of the cover 20 bears against the sealing element 50, compressing the latter around a respective terminal cable CT, and the wall peripheral 22 of the cover 20 presents another extension of the rear edge 22a, more internal and that forces said terminal cable CT towards the interior of the opposite anchoring cutout 45b, when the cover 20 is closed. This construction guarantees the correct anchoring of the cables CT termination when lid is closed. The tray 40 incorporates, on its rear face 41, means for housing the sections of fibers AF, means for splicing fiber EF, a splitter element ("splitter") for fiber SF and the connectors C that receive the divided optical fibers FO from a fiber derived from a CO multifiber optical cable. The front face 42 of the tray 40 carries the adapters for outlet AS, angularly retractable, each to receive a respective connector C of a terminal cable CT.
    [0052] [43] With the provision of a single tray 40 hinged to the base 10, it is possible for an installation team to perform fusion splices and also fiber optic splits using the rear face 41 of the tray 40 which may define a kind of table horizontal, when the box is mounted on a guy wire or building, with the lid hinge horizontally. However, by mounting the box with the hinge axis of the lid in a vertical position, the rear face 41 of the tray remains in a vertical plane when the tray is moved to its second position illustrated in Figure 4. In such a case , the splicing or splitting team can simply move the tray 40 to its second position and work on the rear face 41, without the risk of damaging the connections of the terminal cables CT arranged on the front face 42 of the tray 40.
    [0053] [44] To facilitate the task on the rear face 41 of the tray 40 with the box installed in a vertical position, the base 10 incorporates, in the region of its peripheral wall 12 for articulation of the lid 20, a pair of coupling means 16 (figures 4, 5 and 8) where a corresponding pair of hinge wings 46 (figures 5A and 6) incorporated in an edge of the tray 40 adjacent to the hinge axis of the tray are hinged, in a removable manner and by elastic deformation. cover 20. In this way, it is possible for the operator/installer to move the tray 40 from the base 10, to work on one or the other face of the tray 40 on a work platform mounted, elevated, next to a guarantor cable, to a wall of a building or even to a. This feature is particularly useful when the box is mounted vertically.
    [0054] [46] As illustrated in Figures 1, 23, and 4, the rear wall 11 of the base 10 is usually arranged in a vertical mounting plane to remain mounted to a guy wire (not shown) by means of hooks. suspension 18, removably fastened to the base 10 and that can take different forms, such as the one illustrated by way of example.
    [0055] [47] However, the suspension hooks 18 can be eliminated when the external face of the rear wall 11 of the base 10 is fixed directly to the wall of a building, with the axis of articulation vertical or horizontal, by means of, for example, of screws (not illustrated) that go through the lateral flanges 17 incorporated laterally and externally to the base 10, or even against a post with the articulation axis of the cover 20 arranged vertically.
    [0056] [48] When mounting the box on a pole, a concave cradle 60 illustrated in figures 2, 7 is provided externally and fixed with the ability to be disassembled to the rear wall 11, of the base 10, by screws 61, arranged in watertight housings provided on said rear wall 11, or by other suitable detachable fastening means, with the cradle concave 60 provided with pairs of lateral openings 62, opposite each other, for the passage of straps (not shown) in order to fix the box to a post.
    [0057] [49] Particularly when mounting the box with the hinge axis of the lid 20 horizontally, the tray 40 can be stabilized in its second position by means of its partial bearing against a region of the peripheral wall 22 of the lid 20, adjacent to its hinge to the base 10, the lid 20 being in an open position coplanar to the base 10 and hanging from the latter.
    [0058] [50] In the illustrated configuration example, the tray 40 has its rear face 41 covered by a film 70, made of flexible polymeric material, in order to protect the fiber optic splices, while the front face 42 of the tray 40 mounts a complementary cover 47 that partially covers the output adapters AS and a reserve region of fiber optic sections derived from the fiber splitter SF ("pig tails") and connected to the output adapters AS. Between the front face 42 of the tray 40 and the cover 20, a sealing tape 80 is provided, made of elastomer, flexible or not, for the protection of the connections of the connectors of the terminal cables CT to the respective output adapters AS, as illustrated in figure 5.
    [0059] [51] According to the previous embodiment, the base 10 incorporates, internally, a locking tab 19, elastically deformable from an operative position, in which it locks the tray 40 in its first position resting on the base 10, to a position non-operative, in which the angular displacement of the tray 40 from the first position to the second position is released.
    [0060] [52] In a specific embodiment of the invention, the lid 20 is locked to the base 10 by a T-lock mounted on a peripheral wall 12 of the base 10, opposite that of the hinge of the lid 20 to the base. 10 and movable between an open position and a closed position, in which it locks opposite peripheral walls 12 of base 10 and lid 20 together. It should be understood that lock T may also be hingedly mounted to peripheral wall 22. of the cover 20, to act against the base 10, when closing the optical termination box.
    [0061] [053] Although only one configuration of the optical termination and bypass box of the invention has been illustrated, it should be understood that changes in shape and arrangement of the components can be introduced, without departing from the constructive concept defined in the claims that accompany the present memory.
    one
    权利要求:
    Claims (12)
    [1]
    Claims 1. An optical branch and termination box, comprising: a base (10) having a rear wall (11) and a front edge (12a) defined by peripheral walls (12); a lid (20) having a top wall (21) and a rear edge (22a) defined by peripheral walls (22) that can move between a closed position, supported and locked against the base (10), and an open position; and a tray (40) hinged to the base that has a rear face (41) where means for housing fiber sections (AF) and fiber splicing and division (SF) ("splitters") are mounted, and a anterior (42) where output adapters (AS) are mounted, connected to fiber sections (EF) and to the respective connectors (C) of a terminal cable (CT), the tray (40) being angularly movable between a first position, with its rear face resting on the base (10), and a second position with its rear face (41) exposed to the installer, the box being characterized in that a peripheral wall (12) of the base (10), not hinged to the lid (20), is provided with a single lateral opening (13), defining a lowered extension of the front edge (12a) of the base (10) and with its cross section, not occupied by an optical cable (CO), closed by a sealing plate (30) of elastomer and presenting a lowered anterior region (31), while the tray (40) incorporates, in its face a front (42) and in a single piece, a lateral anchoring element (45), in the form of a gutter, with the front edges (45a) provided with anchoring cutouts (45b) and the rear edges (45c) resting on the sealing plate (30), inside the lowered front region (31), when the tray (40) is brought to the first position resting on the base (10), the lateral anchoring element (45) receives an element sealing (50), made of elastomer and provided with front cutouts (51) aligned with the anchor cutouts (45b) of the lateral anchor element (45), each front groove (51) and each pair of anchor cutouts (45b) , aligned with each other, tightly receive a terminal cable (CT) and an extension of the rear edge of a peripheral wall of the cover (20), resting against the sealing element (50), compressing it around a respective terminal cable (CT) , said peripheral wall of the lid (20) has another rear edge extension (22a), more internal and q This forces said terminal cable (CT) into the opposite anchor cutout (45b), when the cover (20) is closed.
    [2]
    2. The box, according to claim 1, characterized in that the sealing plate (30) is provided in its middle and rear position with a groove (32) which houses a built-in projection (15), longitudinally and in position intermediate, in the recessed extension of the front edge (12a) of the base (10), which defines the lateral opening (13).
    [3]
    3. The box, according to claim 2, characterized in that the sealing plate (30) is provided with transverse holes (33,34), which have one or more diametrical patterns and which have one of the ends originally closed by the respective collapsible side wall portion (35) of the sealing plate (30).
    [4]
    4. The box, according to any of claims 2 or 3, characterized in that each transverse hole (33,34) of the sealing plate (30) has at least part of its extension with a diameter smaller than the optical cable multifiber (CO) that will pass through each respective transverse hole (33,34).
    [5]
    5. The box, according to any of claims 1 to 4, characterized in that the front cutouts (51) of the sealing element (50) extend from a lateral face thereof, in the opposite direction to the box, to a wall lateral (52), opposite and collapsible and that closes the adjacent end of the set of previous cutouts (51).
    [6]
    6. The box, according to any of claims 1 to 5, characterized in that the base (10) incorporates, in the region of its peripheral wall (12) for articulating the lid (20), a pair of coupling means (16) where a corresponding pair of articulation wings (46) incorporated in an edge of the tray (40), adjacent to the articulation axis of the lid (20) are hinged, in a removable manner and by elastic deformation.
    [7]
    7. The box, according to any of claims 1 to 6, characterized in that it is mounted on a securing cable, in a position with the articulation axis of the lid (20) horizontal, by means of a pair of hooks suspension (18), detachably fastened to the base (10).
    [8]
    8. The box, according to any of claims 1 to 6, characterized in that it further comprises an external concave cradle (60) and fixed with the ability to be disassembled to the rear wall (11) of the base (10) and provided with the pairs of side openings (62), opposite each other, for the passage of straps to fix the box to a post.
    [9]
    9. The box, according to any of claims 1 to 8, characterized in that the tray (40) has its rear face (41) covered by a film (70), of flexible polymeric material, which protects the fusions from the fiber optic, both on the face (42) of the tray (40) a complementary cover (47) is mounted that partially covers the output adapters (AS) and a reserve region of fiber optic sections derived from the fiber splitter (SF) ("tails of pig") and connected to the output adapters (AS).
    [10]
    10. The box, according to any of claims 1 to 9, characterized in that it is provided with an elastomeric sealing tape (80), arranged between the front face (42) of the tray (40) and the lid (20). ), covering the connections of the terminal cable connectors (CT) to the respective output adapters (AS).
    [11]
    11. The box, according to any of claims 1 to 10, characterized in that the base (10) incorporates, internally, a locking tab (19), elastically deformable from an operative position, in which it locks the tray (40). ) in its first position resting on the base (10), to a non-operative position, in which the angular movement of the tray (40) from the first position to the second position is released.
    [12]
    12. The box, according to any of claims 1 to 11, characterized in that it is provided with a lock (T) mounted on a peripheral wall (12) of the base (10), opposite that of the hinge of the lid (20) to the base (10) and movable between an open position and a closed position, in which the opposite peripheral walls (12, 22) of the base (10) and of the lid (20) lock together. .
    one
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    WO2016205340A1|2015-06-19|2016-12-22|Commscope Technologies Llc|Optical termination enclosure|
    EP3433653A1|2016-03-23|2019-01-30|CommScope Connectivity Belgium BVBA|Module and enclosure for use therein|
    US9575279B1|2016-04-14|2017-02-21|Furukawa Industrial S.A. Produtos Elétricos|Optic termination box|
    BR102018005815A2|2018-03-23|2019-10-08|Furukawa Electric Latam S.A.|OPTICAL TERMINATION BOX|
    法律状态:
    2022-01-27| BA2A| Patent application published|Ref document number: 2891399 Country of ref document: ES Kind code of ref document: A2 Effective date: 20220127 |
    优先权:
    申请号 | 申请日 | 专利标题
    BR102019014363-0A|BR102019014363A2|2019-07-11|2019-07-11|termination box and optical branch|
    PCT/BR2020/050251|WO2021003544A1|2019-07-11|2020-07-08|Optical branching and termination box|
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