• 专利附录
  • 专利说明
  • 权利要求
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    • 专利摘要:
    CABLE SEALING UNIT WITH MULTIPLE SEALING MODULES. It is a sealing unit (28) that fits within the sealing unit opening (26) of a housing 22. The sealing unit (28) includes a sealing arrangement (32) that defines a plurality of doors cable (30). The sealing arrangement is also configured to provide a peripheral seal between the housing (22) and the sealing unit (28). The sealing unit (28) includes an actuation arrangement (31) to pressurize the sealing arrangement (32) within the sealing unit opening (26). The sealing arrangement (32) includes a plurality of sealing modules (33a to 33e), each dimensioned to form only a portion of the pressure-actuated actuation arrangement (32).
    公开号:BR112014032744B1
    申请号:R112014032744-0
    申请日:2013-06-27
    公开日:2021-03-02
    发明作者:Mohamed Aznag；Diederik Houben；Philippe Coenegracht；Pieter Doultremont；Maddy Nadine Frederickx；Maarten Michiels；Paul Joseph Claes；Dirk Jozef G. Van De Weyer；Eddy Maes；Geert Van Genechten；Emilie De Groe
    申请人:Tyco Electronics Raychem Bvba；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [0001] This description relates, in general, to sets of procedures for entry points for enclosure sealing cable in telecommunication systems. BACKGROUND
    [0002] Telecommunications systems typically employ a network of telecommunications cables with the ability to transmit large volumes of voice and data signals over relatively long distances. Telecommunication cables can include fiber optic cables, electrical cables or combinations of electrical or fiber optic cables. A typical telecommunications network also includes a plurality of telecommunications housings integrated through the telecommunications cable network. The telecommunications enclosures are adapted to house and protect telecommunications components such as splices, termination panels, power dividers and wavelength division multiplexers. It is often preferred for telecommunications enclosures to be reentrable. The term "reentrable" means that telecommunications enclosures can be reopened to allow access to the telecommunications components housed within them without requiring removal and destruction of the telecommunications enclosures. For example, certain telecommunications enclosures may include separate access panels that can be opened to access the interior of the enclosures and then closed to reseal the enclosures. Other telecommunications enclosures take the form of elongated sleeves formed by surrounding covers or half linings that have longitudinal edges that are joined by clamps or other retainers. Still other telecommunications enclosures include two half pieces that are joined together by means of clamps, wedges or other structures. Telecommunications enclosures are typically sealed to inhibit the intrusion of moisture or other contaminants. Pressurized gel-type seals were used to effectively seal the locations where telecommunications cables enter and exit the telecommunications enclosures. Exemplary pressurized gel type seals are disclosed by EP 0442941 B1 and EP 0587616 B1. Both of these documents reveal gel-type cable seals that are pressurized through the use of threaded actuators. US 6,046,406 discloses a cable seal that is pressurized through the use of an actuator that includes a cam lever. Although pressurized cable seals have proven to be generally effective, improvements in this area are still needed. SUMMARY
    [0003] Aspects of the present description allow a pressure-driven cable sealing unit to be readily adapted in the field or at the factory to accommodate cables of different numbers and sizes. In certain embodiments, the sealing unit can include a plurality of separately identifiable sealing modules that can be independently installed and independently removed from the sealing unit. In certain embodiments, the design is cost-effective and efficient as the sealing unit does not need to use a separate actuation arrangement to separately pressurize each sealing module, however, instead, all cable sealing modules can be prescribed -surmised concurrently using the same actuation disposition. In certain embodiments, the sealing modules may have longer axial connection / sealing gel lengths within the modules compared to the axial connection / sealing length on the peripheries of the cable sealing modules. This is advantageous due to the fact that cables often have scratches or inconsistencies on their outer surfaces caused by handling and handling during installation. Therefore, the longer gel seal length on the cable for insertion interface helps to ensure that a proper seal is provided around the cable. The peripheries of the cable sealing modules will typically come in contact with gel from adjacent cable sealing modules or with the inner surface of a housing opening that receives the sealing unit and, therefore, will be able to provide a suitable seal with a length gel seal length shorter than the gel seal surface length required to ensure a proper seal around a cable. By varying the lengths of the internal and external sealing surfaces of the cable sealing modules, the overall amount of sealant used in the modules can be conserved and modules can each have a compact and cost-efficient design.
    [0004] One aspect of the present description relates to an enclosure that includes a housing that defines a housing opening that extends along a central geometric axis of opening. The enclosure additionally includes a sealing unit which can be inserted along the central geometric axis of the opening in the housing opening. The sealing unit can include a sealing ring that surrounds the central opening geometry axis when the sealing unit is positioned inside the opening. The sealing unit can include an actuation arrangement that can have internal and external axial pressurizing structures between which the sealing ring can be axially pressurized. The sealing ring can form an external radial seal with an inner housing surface that defines the housing opening. The sealing ring can form an internal radial seal with an axial extension facing outward from the internal pressurization structure. The actuation arrangement may also include an actuator that can be accessed from outside the housing. The actuator may include an actuator shaft that engages the axial extension facing outward from the internal pressurization structure.
    [0005] Another aspect of the present description relates to a sealing unit that includes a sealing ring and internal and external axial pressurizing structures to pressurize the sealing ring. The sealing unit can additionally include an actuator to force the internal and external axial pressurizing structures together to pressurize the sealing ring. The actuator can include a threaded shaft and a handle assembly that threads onto the threaded shaft to press the internal and external pressurizing structures together. The handle assembly may include a handle that is universally movable in an articulated manner with respect to the threaded shaft.
    [0006] A variety of additional aspects of the invention will be presented in the description that follows. Aspects of the invention can refer to individual features and combinations of features. It should be understood that both the previous general description and the following detailed description are exemplary and explanatory only and are not restrictive of the broad inventions and concepts of the invention on which the modalities disclosed in this document are based. BRIEF DESCRIPTION OF THE DRAWINGS
    [0007] Figure 1 is a perspective view of a telecommunications housing in accordance with the principles of the present description, the housing has a dome-style cover and a base attached together by a clamp;
    [0008] Figure 2 shows the telecommunications enclosure of Figure 1 with the dome-style cover of the enclosure removed from the base of the enclosure;
    [0009] Figure 3 shows a frame and a sealing unit of the housing of Figures 1 and 2, the sealing unit is shown in a non-actuated position;
    [00010] Figure 4 is an exploded view of the sealing unit of Figure 3 showing cable sealing modules of the sealing unit and also showing an actuation arrangement of the sealing unit;
    [00011] Figure 5 is a cross-sectional view showing an exemplary type of actuation arrangement that can be used to pressurize the sealing unit of Figure 4;
    [00012] Figure 6 is an exploded view of a portion of the sealing unit of Figures 3 and 4;
    [00013] Figure 7 shows the sealing unit of Figures 3 and 4 with an external pressurization structure removed to better show sealing modules of the sealing unit;
    [00014] Figure 8 shows the pressurization arrangement of the sealing unit of Figures 3 and 4 with the cable sealing modules removed;
    [00015] Figure 9 shows the sealing modules of the sealing unit of Figures 3 and 4 in an assembled configuration with the actuation arrangement removed;
    [00016] Figure 10 shows a two door cable seal module of the cable seal unit of Figures 3 and 4;
    [00017] Figure 11 shows a four door cable seal module of the cable seal unit of Figures 3 and 4;
    [00018] Figure 12 shows a six door cable seal module of the cable seal unit of Figures 3 and 4;
    [00019] Figure 13 shows an eight port cable seal module of the cable seal unit of Figures 3 and 4;
    [00020] Figure 14 shows a two door cable seal module of the cable seal unit of Figures 3 and 4 in which the ports are configured to receive and seal flat drop cables;
    [00021] Figure 15 is an exploded view of the cable seal module of Figure 13;
    [00022] Figure 16 shows the sealing unit of Figure 3 in an actuated position;
    [00023] Figure 17 is an exploded view of another telecommunications casing in accordance with the principles of the present description;
    [00024] Figure 18 is an exploded view of a sealing unit for the telecommunications enclosure of Figure 17;
    [00025] Figure 19 is a top view of the sealing unit of Figure 18;
    [00026] Figure 20 is an axial internal perspective view of a base of the telecommunications enclosure of Figure 17 with the sealing unit of Figure 18 partially inserted in the base and with a sealing unit retainer in a non-position. retention;
    [00027] Figure 21 shows the base and sealing unit of Figure 20 with the sealing unit fully inserted in the base and with the sealing unit retainer in a holding position;
    [00028] Figure 22 is a cross-sectional view taken along the cut line 22-22 of Figure 19;
    [00029] Figure 23 is a partial cross-sectional view of the sealing unit of Figure 18 done along a horizontal cross-sectional plane in general;
    [00030] Figure 24 is a cross-sectional view of another sealing unit in accordance with the principles of the present description, the threaded sealing shaft being made of a polymeric material;
    [00031] Figure 25 is a top view of yet another sealing unit in accordance with the principles of the present description, the sealing unit having an actuator handle assembly that has a universal articulation arrangement; and
    [00032] Figure 26 is a cross-sectional view of the sealing unit of Figure 25. DETAILED DESCRIPTION
    [00033] Figures 1 to 3 show a telecommunications enclosure 20 in accordance with the principles of the present description. The housing 20 includes a housing 22 having an end 24 that defines a sealing unit opening 26. The sealing unit opening 26 is defined by a base 27 of the housing 20. The base 27 has a hollow sleeve configuration. A dome-style cover 29 is secured to the base 27 by a channel clamp 25. The housing 20 also includes a sealing unit 28 (see Figures 3 and 4) that fits within the sealing unit opening 26. Sealing unit 28 includes a sealing arrangement 32 (see Figure 9) that defines a plurality of cable ports 30. When pressurized, sealing arrangement 32 is configured to provide ventilation around structures (for example, cables, plugs, etc.) routed through cable ports 30 and is also configured to provide a peripheral seal between housing 22 and seal unit 28. Enclosure 20 additionally includes an actuation arrangement 31 (see Figures 5 and 9) to pressurize the sealing arrangement 32 within the sealing unit opening 26. The actuation arrangement 31 is shown including an actuator 35 that has a lever arm 36. The sealing arrangement 32 is pressurized as the actuator 35 is moved a non-triggered position P1 (see Figure 3) in the direction of a triggered position P2 (see Figure 16). In other modalities, actuation arrangements that have alternative types of actuators (for example, screw type, threaded actuators) can be used.
    [00034] Referring to Figure 5, the actuation arrangement 31 includes internal and external pressure structures 60, 62 (for example, plates, members, bodies, etc.). As shown in Figure 3, a frame 190 that supports a plurality of optical components 192 (for example, splice trays, optical splitter trays, splices, splitters, wavelength division multiplexers, loose cable storage devices, coils , etc.) is attached to the internal pressurization structure 60 and transported with the sealing unit 28. The sealing arrangement 32 is positioned between the internal and external pressurization structures 60, 62. Actuator 35 includes a spring 52 to transfer a force of sealing pressurization of the lever arm 36 for the sealing arrangement 32. When the lever arm 36 is moved in the direction of the actuated positions, the lever arm 36 generates a pressurizing force that presses the sealing arrangement 32 between the first and second pressurizing structures 60, 62. More specifically, a pressurizing force of the lever arm 36 is transferred from the lever cam surface 64 through spring springs 52 and through axis 170 for internal and external pressurization structures 60, 62. In this way, the first and second pressurization plates 60, 62 are inclined by spring towards each other so that a spring pressure be applied to the sealing arrangement 32 to pressurize the sealing arrangement 32 to keep the seals in for an extended period of time. In other modalities, different performance configurations can be used. For example, as shown in Figures 4 and 8, the cam surface of the lever arm can act against a sleeve coupled to the external pressurization structure, and the spring can be captured between an inner end of the shaft and the internal pressurization structure.
    [00035] Referring to Figure 8, the sealing arrangement 32 includes multiple separately identifiable cable sealing modules 33 that are collectively pressurized by the actuation arrangement 31. When the actuation arrangement 31 is actuated, the cable sealing modules 33 are all axially pressurized between the internal and external pressurization structures 60, 62. As the cable seal modules 33 are pressurized, sealing portions of the cable seal modules 33 flow / deform to fill voids within the unit opening seal 26 to form the peripheral seal with housing 22, and to form seals around any cable or inserts positioned within cable ports 30.
    [00036] Aspects of the present description refer to sets of procedures to allow the sealing arrangement 32 to be readily reconfigured to accommodate cables of different sizes, shapes / cross-sections and numbers. In this regard, housing 20 can be sold as a kit with multiple cable seal modules that have different port configurations. The cable seal modules 33 can have different door counts, different door sizes and different door shapes. By selecting certain modules from the cable seal modules 33, the cable seal unit 28 can be standardized to meet the needs of a given customer or application. In the case of a kit, an installer can select and install desired cable seal modules 33 in the field to standardize the enclosure 20 for a particular use and can store cable seal modules 33 for later use to reconfigure the enclosure 20 as needed. The housing 20 can also be assembled at the factory. When assembled at the factory, the ability to select cable seal modules 33 that have different configurations allows an actuation arrangement style 31 to be used to provide many different door configurations. This assists in manufacturing efficiency due to the fact that many different door configurations can be provided without requiring different models of actuation arrangements 31 to be designed or stacked.
    [00037] Referring to Figure 9, the cable sealing arrangement 32 is shown including cable sealing modules 33a, 33b, 33c, 33d and 33e. The cable sealing modules 33a each define a relatively large cable port 30a adapted to receive a trunk cable or main distribution cable. The main distribution cable can loop or pass through the casing 20 so that a portion of the cable enters the casing 20 through one of the cable ports 30a and another portion of the cable exits the casing 20 through the other cable port 30a. Inside the enclosure 20, optical fibers of the distribution cable can be evaluated to splice drop-type cables or to connect to an optical splitter. The cable seal module 33b (see Figures 9 and 10) defines two cable ports 30b. The cable seal module 33c (see Figures 9 and 11) defines four cable ports 30c. The cable seal module 33d (see Figures 9 and 12) defines six cable ports 30d. The cable seal module 33e (see Figures 9 and 13) defines eight cable ports 30e. In other modalities, a cable sealing module 33f (see Figure 14) that includes ports 30f adapted to receive flat drop cables can also be used. In addition to the specifically pictured inserts, it should be noted that inserts that have different numbers of cable openings, different shapes of cable openings and different sizes of cable openings can also be used to accommodate different types of cable.
    [00038] As shown in Figure 9, the sealing arrangement 32 is elongated along a major geometry axis 41. It should be noted that the major geometry axis 41 corresponds to a major geometry axis of the sealing unit opening 26. The modules cable seals 33a are separated from each other along the main geometry axis 41 and are positioned at opposite side ends of the sealing arrangement 32. The cable sealing modules 33b to 33e are mounted along the main geometry axis 41 between the modules cable seal 33a. The cable sealing modules 33b, 33e form a first row of cable ports positioned on one side of the main geometry axis 41 (for example, on top of the main geometry axis) and the cable sealing modules 33c, 33d form a second row of cable ports positioned on the opposite side of the main geometry axis 41 (for example, under the main geometry axis 41). The rows are parallel to the main geometric axis 41 and extend between the cable sealing modules 33a.
    [00039] Referring to Figures 13 and 15, the cable sealing module 33e is pictured. It should be noted that, with the exception of the size, shape and number of ports provided, the cable seal modules 33b-33d and 33f may have similar constructions. Therefore, the description that belongs to the cable seal module 33e is applicable to other cable seal modules 33b, 33c, 33d and 33f as well.
    [00040] Referring to Figures 13 and 15, the cable sealing module 33e includes a body 90 having a total axial length L which extends between the first and second axial ends 70, 72 of the body 90 over a central geometric axis 91. The body 90 may have a composite construction that includes a seal volume 74 contained at least partially axially between the first and second axial retaining structures 76, 78. The first and second axial retaining structures 76, 78 are respectively positioned adjacent the first and second ends 70, 72 of the body 90 and form axial end caps of the body 90. The first and second axial retaining structures 76, 78 can be fixed (for example, connected) in ends of the seal volume 74. In other embodiments, the containment structures 76, 78 may not be attached to the seal volume 74, but when mounted within the actuation arrangement 31 they can be held in position relative to the o to the volume of seal 74.
    [00041] The first and second axial retaining structures 76, 78 are preferably constructed of a material that has a greater hardness and is less dispersible than the sealing material that constitutes the seal volume 74. Therefore, when the seal volume 74 is pressurized to provide cable sealing, the first and second axial retaining structures 76, 78 assist in containing the seal volume 74 between the axial ends 70, 72 to limit the amount of seal volume 74 that is forced out of the sealing unit 28.
    [00042] As shown in Figures 7 and 9, the seal volumes 74 of the various cable seal modules 33a to 33e are in fluid communication with each other when assembled together to form the seal arrangement 32 and are pressurized between the first and second pressurization structures 60, 62 when the actuation arrangement 31 is activated. Outer portions of the seal volumes 74 of modules 33a to 33e are adapted to bring the interior of the base 27 to form the peripheral seal in contact with the base 27 when the actuation arrangement 31 is actuated.
    [00043] The harder material of the containment structures 76, 78 does not extend the total axial length L of the body 90. Instead, only the seal volume 74 of the body 90 is located between the containment structures 76, 78. Therefore, the containment structures 76, 78 can move axially with respect to each other as the seal volume 74 is axially compressed. For example, the containment structures 76, 78 can be moved axially with the first and second pressurization structures 60, 62 to assist in providing axial pressurization of the seal volumes 74 when the actuation arrangement 31 is actuated. In certain embodiments, the body 90 does not have any axial reinforcing structure that extends along the seal volume 74 and that interconnects containment structures 76, 78. Instead, the containment structures 76, 78 are connected together only by the volume sealant 74. As shown in Figure 15, containment structures 76, 78 can include truncated conical parts 79 that project into sealant volume 74 in alignment with cable ports 30e that extend axially through the volume of sealant seal 74.
    [00044] The body 90 defines the plurality of reduced size cable ports 30e that extend axially through the seal volume 74. The seal volume 74 includes cable sealing surfaces 80 that define the size cable ports reduced 30e. The cable sealing surfaces 80 each have a first axial length L1 (see Figures 15 and 22) that extends axially between the first and second axial retaining structures 76, 78. The seal volume 74 also includes an exposed outer sealing surface 84 that surrounds a periphery of the body 90 and extending around the central geometry axis 91. The outer sealing surface 84 has a second axial length L2 (see Figures 15 and 22) that extends axially between the first and second retaining structures 76, 78. The first axial length L1 is longer than the second axial length L2 to provide effective sealing around cables routed through the cable ports 30e. The first and second containment structures 76, 78 define openings 94 that align with the cable ports 30e.
    [00045] In certain embodiments, the first and second containment structures 76, 78 of the cable sealing module 33e interface with the pressurization structures 60, 62 so that the pressurization structures 60, 62 apply pressure axially through of the first and second axial retaining structures 76, 78 in the seal volume 74 when the actuation arrangement 31 is activated. In certain embodiments, hitch portions 96 (for example, ribs, tongues, flanges, etc.) of the pressurizing structures 60, 62 overlap the first and second containment structures 76, 78 so that the body 90 is captured axially between the pressurization structures 60, 62. In certain embodiments, the pressurization structures 60, 62 join, lock or connect to the containment structures 76, 78. For example, the hitch portions 96 (for example, projections) pressurizing structures 60, 62 can fit into receptacles 102 defined by containment structures 76, 78 (see Figure 6).
    [00046] To load the cable seal modules 33 between the pressurizing structures 60, 62, the cable seal modules 33 are manually compressed in an axial direction (that is, the first and second containment structures 76, 78 are manually compressed together) to provide free space to allow the cable seal modules 33 to fit between the pressurizing structures 60, 62. Referring to Figure 6, when the cable seal modules 33 are not axially compressed , receptacles 102 define an axial spacing S1. The engagement portions 96 of the pressurizing structures 60, 62 define an axial spacing S2. In one example, the actuation arrangement 31 is configured so that the axial spacing S2 is always less than the axial spacing S1 defined by the cable seal modules 33 when the cable seal modules 33 are not axially compressed, even when the actuation arrangement 31 is in a fully expanded position. In this way, the cable seal modules 33 are positively retained between the pressurization structures 60, 62 by an interference fit so that the cable seal modules 33 do not fall unintentionally between the pressurization structures 60, 62 when the actuation arrangement 31 is completely deactivated. To remove one of the cable seal modules 33 between the pressurizing structures 60, 62, the cable seal module 33 is manually compressed in an axial direction until the axial spacing S1 is less than the spacing S2 and then the the cable seal 33 can be manually pulled between the pressurization structures 60, 62. Similarly, to insert one of the cable seal modules 33 between the pressurization structures 60, 62, the cable seal module 33 is manually compressed in an axial direction until the axial spacing S1 is less than the spacing S2 and then the cable seal module 33 can be manually inserted between the pressurizing structures 60, 62 and then allowed to expand to lock the module between the structures of pressurization 60, 62.
    [00047] Referring back to Figures 13 and 15, the body 90 is portrayed as rectangular, the outer sealing surface 84 forms an outer sealing band between the first and second containment structures 76, 78. In certain embodiments, the body 90 has a surrounding configuration to allow cables to be inserted laterally into the cable port 30e. As shown in Figure 15, the surrounding configuration is provided by making the volume of seal 74 into two parts 74a, 74b which allows the body 90 to be moved between a closed configuration and an open configuration. Parts 74a, 74b each define portions (e.g., half portions) of each of the cable ports 30e. Similarly, the first and second containment structures 76, 78, each, include two parts 76a, 76b; 78a, 78b corresponding respectively to parts 74a, 74b and defining portions (e.g., half portions) of the openings 94.
    [00048] To route a cable through the sealing unit 28, the sealing unit 28 is first deactivated and then removed from housing 22. Parts 74a, 76a, 78a are then removed from the actuation arrangement 31 to expose the cable ports 30e. The fiber optic cables 106 are then loaded into ports 30e. The parts 74a, 76a, 78a are then reinstalled in the actuation arrangement 31 and the sealing unit 28 is reinstalled in the housing 22 and the actuation arrangement 31 is actuated to compress the sealing arrangement 32 to provide seals around fiber optic cables 106 routed through the sealing unit 28 and to provide the peripheral seal of the base 27 of the housing 22.
    [00049] Figure 17 illustrates another telecommunications enclosure 320 in accordance with the principles of the present description. The telecommunications enclosure 320 includes a housing 322 that has a dome 324 that connects to a base 326. The telecommunications enclosure 320 also includes an insert assembly 328 that fits within the housing 322. Insert assembly 328 includes a unit seal 330 that fits within base 326 and defines a plurality of cable ports 332 (see Figure 18). Insert assembly 328 also includes a frame 334 attached to the sealing unit 330 and one or more telecommunications components 336 (for example, optical splice trays, splice trays, optical power dividers, optical power divider trays, multiplexers wavelength splitters, fiber managers, loose cable fiber storage devices and / or other structures) mounted on frame 334. Frame 334 is housed within dome 324 when sealing unit 330 is fitted within the base 326. The telecommunications enclosure 320 additionally includes a mounting bracket 338 for mounting housing 322 in a desired mounting location (for example, on a wall, on a pole, on a handle or any other location) by means of fasteners .
    [00050] The base 326 of the housing 322 has a hollow configuration similar to a sleeve and defines a main opening 340 that extends through the base 326 from an outer end 342 of the base 326 to an inner end 344 of the base 326. The inner end 344 base 326 connects to an open end 346 of dome 324 at the sealed interface. The latches 348 are used to lock the dome 324 on the base 326. The main opening 340 defines a central geometric axis of opening 341 that extends through the main opening 340. Insert assembly 328 is inserted into the base 326 and through it to the along the central geometry axis 341. In other examples, the base 326 can be eliminated and the sealing unit 330 can be mounted directly on the open end 346 of the dome 324 or any other type of cable access opening defined by a housing.
    [00051] Referring to Figures 18 and 19, the sealing unit 330 of the telecommunications housing 320 includes a sealing ring 350 (for example, gel, rubber, silicone rubber or similar materials) that defines the cable ports 332. The sealing ring 350 is formed by a plurality of cable sealing modules 33 of the type previously described. The cable seal modules 33 are positioned within the seal unit 330 so that the seal volumes 74 of adjacent cable seal modules 33 come into contact with each other. In this way, the seal volumes 74 cooperate to define the continuous seal ring 350. The seal unit 330 also includes an actuation arrangement 352 to pressurize the seal ring 350 causing the seal ring 350 to thus form seals around of cables routed through cable ports 332.
    [00052] The actuation arrangement 352 includes internal and external axial pressurizing structures 354, 356 between which the sealing ring 350 is positioned. The axial retaining structures 76, 78 of the cable sealing modules 33 lock the inner and outer axial pressurizing structures 354, 356 or engage with them in another way so that the inner and outer axial pressurizing structures 354, 356 and the axial retaining structures 76, 78 work together to pressurize the seal volumes 74 that form the seal ring 350. Specifically, the cable seal modules 33 are axially captured between the portions of the internal axial pressurizing structures and outer axles 354, 356 with the first axial retaining structures 76 engaging the outer axial pressurizing structure 356 and the second axial retaining structures 78 engaging the inner axial pressurizing structures 354. The engagement portions 96 of the outer axial pressurizing structure 356 fit into the receptacles 102 of the first axial retaining structures 76 and the engagement portions 96 of the pressure structure internal axial ization 354 fit into receptacles 102 of the second containment structures 78. The sealing pressure force is transferred axially from the internal and external axial pressure structures 354, 356 through the axial containment structures 76, 78 for the seal volumes 74 that form the seal ring 350. The first axial containment structures 76 correspond to the external axial pressurization structure 356 and can be referred to as external axial containment structures. The second axial containment structures 78 correspond to the internal axial pressurization structure 354 and can be referred to as internal axial containment structures.
    [00053] The actuation arrangement 352 also includes an actuator 358 to force the inner and outer axial pressurizing structures 354, 356 together to pressurize the sealing ring 350. When the sealing unit 330 is fitted within the base 326, an inner side axial 360 (see Figures 22 and 23) of the sealing ring 350 is facing towards the dome 324 and an axial outer side 362 of the sealing ring 350 is facing away from the dome 324. The second axial retaining structures 78 are opposite to the side axial inner 360 of the sealing ring 350 and the first axial retaining structures 76 are opposed to the axial outer side 362 of the sealing ring 350. The internal pressurizing structure 354 restricts axial movement into the second axial retaining structures 78 and the pressurizing structure - external use 356 restricts axial movement outward from the first axial retaining structures 76. The cable ports 332 extend axially through the sealing ring 350 along the the central geometric axis 341 of the main opening 340 so that cables can be routed through the base 326 and to the dome 324 by routing the cables through the cable ports 332. When the sealing ring 350 is pressurized by the actuation arrangement 352, an outer radial surface 349 of the seal ring 350 forms an outer radial seal 351 with the inside of the base 326 and an inner radial surface 347 of the seal ring 350 forms an inner radial seal 353 with an outer surface of a centrally located outer axial extension 355 ( see Figures 22 and 23) of the internal pressurization structure 354. The internal and external radial seals 351, 353 extend continuously around the central geometric axis 341. In the depicted mode, the external axial extension 355 is hollow in order to define an open chamber 357 around which the sealing ring 350 extends. By providing a seal-free region that extends through the seal ring 350 and which is defined by the internal axial pressurizing structure 354, the volume of seal 74 used by the seal unit 330 can be reduced.
    [00054] Referring to Figures 22 and 23, actuator 358 includes a handle 366 that is threaded onto a threaded actuator shaft 368. An inner end 370 of threaded actuator shaft 368 is attached to the outer axial extension 355 of the internal pressurization 354 at an anchorage location 371. Anchorage location 371 is positioned axially in the direction of the inner and outer radial seals 351, 353 and the general configuration is arranged so that a seal is not required around the axis of threaded actuator 368. The threaded actuator shaft 368 is mounted so as not to rotate with respect to the internal pressurizing structure 354. The actuator 358 additionally includes a spring 372 positioned axially between the handle 366 and the external pressurizing structure 356. Spring 372 is positioned around threaded actuator shaft 368. By screwing handle 366 in a first direction around threaded actuator shaft 368, handle 366 compresses spring 372 in axial fashion ial against the axial outer side 362 of the outer pressurizing structure 356, thereby causing the inner and outer pressurizing structures 354, 356 to be forced together so that the sealing ring 350 between the inner and outer pressurizing structures 354, 356 is pressurized. By screwing handle 366 in a second direction around threaded actuator shaft 368, spring 372 is decompressed, thereby depressurizing seal ring 350. Although actuator 358 is pictured including handle 366 on a threaded actuator shaft 368, it should be noted that other actuation configurations such as cam lever actuation devices that have non-threaded actuator shafts or other structures can be used.
    [00055] Referring to Figure 22, actuator 358 also includes a locking structure such as a fixed nut 373 anchored in a fixed axial location on the threaded actuator shaft 368. The fixed nut 373 limits the distance that handle 366 can be retracted axially on the threaded actuator shaft 368 when the handle 366 is rotated in the second direction around the threaded actuator shaft 368. The position of the fixed nut 373 is selected so that the axial spacing S2 never exceeds the axial spacing S1.
    [00056] The anchoring location 371 may include a slot defined by the internal pressurizing structure 354 that receives the inner end 370 of the threaded actuator shaft 368. The threaded actuator shaft 368 may include an anti-rotation element that fits and includes one or more planes that oppose corresponding planes so that the threaded actuator shaft 368 is prevented from rotating with respect to the internal pressurizing structure 354. In the example of Figures 22 and 23, the threaded actuator shaft 368 can be of metal and the internal pressurizing structure 354 can be plastic. Figure 24 shows an example that has a plastic threaded actuator shaft 368 'that engages the internal axial pressurizing structure 354.
    [00057] Insert assembly 328 additionally includes an outer cable anchor structure 374. The outer cable anchor structure 374 is configured to allow cables to be anchored in insert assembly 328 in a position outside housing 322. In As shown, the outer cable anchor structure 374 includes two parallel cable anchor plates 376 interconnected by a bridge plate 378. The threaded actuator shaft 368 and the handle 366 extend between the cable anchor plates 376 The cable anchor plates 376 include a plurality of cable tie locations 380 that include openings for routing cable ties used to secure cable sheaths routed to housing 322 in the outer cable anchor structure 374. The anchor structure of outer cable 374 is positioned facing outside the external pressurization structure 356 and is fixed in relation to the internal pressurization structure rna 354. For example, the bridge plate 378 can be attached to the outer fastening sections 382 that form part of the external axial extension 355 of the internal axial pressurizing structure 354 and which extend axially through the external pressurizing structure 356. The outer fastening sections 382 are secured to the bridge plate 378 of the outer cable anchor structure 374 to secure the outer cable anchor structure 374 to the inner pressurizing structure 354.
    [00058] Insert assembly 328 may also include an inner cable anchoring structure 339 positioned on or near frame 334. The inner cable anchoring structure 339 can include fasteners, clamps, posts or other structures to hold the resistance members (for example, Kevlar members, fiber-reinforced polymer rods or other structures) of the cables rotated through the cable ports 332 to the frame 334. The frame 334 is preferably connected to the internal pressurization structure 354 so that movement between the frame 334 and the internal pressurization structure 354 is not allowed. In this way, the cables can be fixed in relation to the internal pressurization structure 354 at locations both inside and outside housing 322 of telecommunications enclosure 320.
    [00059] Insert assembly 328 is configured to be inserted into housing 322 through outer end 352 of base 326. For example, insert assembly 328 is inserted through base 326 along central geometry axis 341 that extends through of the main opening 340 of the base 326. Insert assembly 328 is inserted into the base 326 until the sealing unit 330 is completely housed within the base 326. Since the sealing unit 330 is completely housed within the base 326, the internal pressure structure 354 is anchored (for example, fixed) in relation to the base 326. For example, a retainer 384 (see Figures 20 and 21) can be used to fix the internal pressure structure 354 in relation to the base 326. Retainer 384 can be a U-shaped retainer that is slidably mounted on base 326. In one example, retainer 384 is not removable from base 326. Retainer 384 is movable relative to base 326 between a position from n non-holding (see Figure 20) and a holding position (see Figure 21). In the non-retention position, the retainer 384 is disengaged from the internal pressurization structure 354 so that the internal pressurization structure 354 can be moved relative to the base 326. In addition, when the retainer 384 is in the non-retention position of the Figure 20, retainer 384 interferes with the ability to fit dome 324 to base 326. Therefore, retainer 384 prevents a technician from mounting dome 324 to base 326 before internal pressurizing structure 354 has been attached to the base 326. When retainer 384 is slid in relation to base 326 to the retaining position of Figure 21 at the same time that sealing unit 330 is fully inserted into base 326, retainer 384 slides into slots (see Figure 23) defined by the internal pressurization structure 354 so that the internal pressurization structure 354 is prevented from moving along the central geometric axis 341 by the retainer 384.
    [00060] To load insert assembly 328 into housing 322, insert assembly 328 is initially inserted through base 326 until sealing unit 330 is housed within base 326. Then, retainer 384 is moved from the non-holding position of Figure 20 to the holding position of Figure 21 so that the internal pressurizing structure 354 of the actuation arrangement 352 is fixed in relation to the base 326. Thereafter, the handle 366 can be screwed into the first direction around the threaded actuator shaft 368 to pressurize the seal ring 350 forming seals, thus around the cables routed through the cable ports 332 and forming the inner and outer radial seals 351, 353. The dome 324 can be, then, seated in base 326 and held in place by latches 348. As configured, frame 334 and telecommunications components 336 are positioned inside dome 324. Telecommunications housing 320 can be reentered o without disturbing the sealing unit 330 by unlocking the latches 348 and removing the dome 324 from the base 326. A technician can then access the telecommunications components 336 in the frame 334 to perform services, maintenance, upgrades or other needs of service. If desired, the retainer 384 can be removed to the non-retaining position and the inert assembly 328 can be pulled out of the outer end 342 of the base 326.
    [00061] Figures 25 and 26 show another sealing unit 430 according to the principles of the present description. The sealing unit 430 includes a sealing ring 450 which can be of the type previously described in this document. The sealing unit 430 includes an actuation arrangement 452 to pressurize the sealing ring 450, thereby causing the sealing ring 450 to form seals around cables routed through cable ports defined by the sealing ring 450. The actuation arrangement 452 includes internal and external axial pressurizing structures 454, 456 between which the sealing ring 450 is positioned. The internal and external axial pressurization structures 454, 456 can be of the type previously described in this document. The actuation arrangement 452 includes an actuator 458 to force the internal and external axial pressurization structures 454, 456 together to pressurize the sealing ring 450. The actuator 458 includes a handle assembly 490 which is mounted on a threaded shaft 468. An inner end 470 of the threaded shaft 468 is attached to an outer axial extension 455 of the inner axial pressurized structure 454 at an anchoring location 471. The threaded shaft 468 is mounted so as not to rotate with respect to the internal pressurizing structure 454. Handle assembly 490 includes a base 491 that is screwed onto threaded shaft 468 and a handle 466 that can be hinged universally with respect to base 491. Handle 466 is pivotally connected to an intermediate link 492 on a first axis articulation geometry 493. Intermediate link 492 is pivotally connected to base 491 on a second articulation geometry axis 494. The first and second geometry axes of articulation tion 493, 494 are perpendicular to each other. In this way, the handle 466 can be universally articulated with respect to the base 491 and the threaded shaft 468 to which the base 491 is screwed. A spring 472 is positioned axially between the base 491 and the external pressurizing structure 456. The spring 472 is positioned around the threaded shaft 468. By manually turning the handle 466 in a first rotational direction around its central geometric axis, the base 491 is screwed on the threaded axis 468 causing the base 491 to compress the spring 472 axially against the external axial side of the external axial pressurizing structure 456 thus making the axial pressurizing structures internal and external 454, 456 are forced together so that the sealing ring 450 between the internal and external axial pressurizing structures 454, 456 is pressurized. By turning the handle 466 around its central longitudinal geometric axis in a second rotational direction, the base 491 is unscrewed from the threaded axis 468, thus allowing the spring 472 to decompress the sealing ring 450. The ability to articulate universally handle 466 is particularly advantageous when many cables have been routed in the housing, thereby making access to handle 466 difficult. The universal hinge allows handle 466 to be pivoted out of cables routed to the housing, thereby providing access to handle 466 and allowing actuation arrangement 452 to be easily pressurized and / or depressurized. In certain examples, the handle 466 can be detached from the intermediate link 492 by removing a hinge pin that extends along the first geometric axis of articulation 493. Typically, the handle 466 would be disconnected from the intermediate link 492 after the actuation arrangement. 452 have been completely pressurized. In this way, the general assembly takes up less space. In addition, the absence of the 466 handle prevents an unauthorized individual from depressurizing the sealing unit 430.
    [00062] It should be noted that several materials can be used to form the sealing arrangement. Exemplary materials include elastomers, including natural or synthetic rubbers (for example, EPDM rubber or silicone rubber). In other embodiments, polymeric foam (for example, open cell or closed cell) such as silicone foam can be used. In still other embodiments, the sealing members may comprise gel and / or gel combined with another material such as an elastomer. The gel may comprise, for example, silicone gel, urea gel, urethral gel, thermoplastic gel or any suitable gel or ice-sealing material. Gels are normally substantially incompressible when placed under compressive force and normally flow and conform to their surroundings, thus forming sealed contact with other surfaces. Exemplary gels include oil-extended polymers. The polymer can comprise, for example, an elastomer, or a block copolymer that has relatively hard blocks and relatively elastomeric blocks. Exemplary copolymers include two-block or three-block copolymers of styrene-butadiene or styrene-isoprene. In still other embodiments, the gel polymer can include one or more styrene-ethylene-propylene-styrene block copolymers. Exemplary extender oils in exemplary gels can be, for example, hydrocarbon oils (for example, paraffinic or naphthalenic oils or mixtures thereof). The sealing members can also include additives such as hydration absorbers, antioxidants, tackiness enhancers, pigments and / or fungicides. In certain embodiments, the sealing members according to the principles of the present description have final elongations greater than 100 percent with substantially elastic deformation for an elongation of at least 100 percent. In other embodiments, the sealing members according to the principles of the present description have final elongations of at least 200 percent, or at least 500 percent, or at least 1,000 percent. The final elongation can be determined by the test protocol presented in ASTM D412.
    [00063] From the previous detailed description, it will be evident that modifications and variations can be made without separating from the spirit and scope of the description. NUMERICAL REFERENCE LISTING AND COLOR RESPONDING RESOURCES 20 housing 22 housing 24 end 25 clamp 26 opening sealing unit 27 base 28 sealing unit 29 cover 30 cable doors 30a-30f cable doors 31 actuation arrangement 32 sealing arrangement 33a- 33f cable sealing modules 35 actuator 36 lever arms 41 main geometric axis 52 spring 60 internal pressurization structure 62 external pressurization structure 64 cam surfaces 70 first axial end 72 second axial end 74 seal volume 74a, 74b half parts seal 76 first axial containment structure 76a, 76b first half parts of axial containment structure 78 second axial containment structure 78a, 78b second half parts of axial containment structure 79 conical parts 80 cable sealing surfaces 84 external sealing surface 90 body 91 body geometry axis 94 openings 96 hitch portions 102 receptacles 106 fiber optic cables ca 170 actuator shaft 190 frame 192 optical components 320 telecommunications housing 322 housing 324 dome 326 base 328 insert assembly 330 sealing unit 332 plurality of cable ports 334 frame 336 telecommunication components 338 mounting bracket 339 cable anchoring structure inner 340 main opening 341 central geometric axis 342 outer end 344 inner end 346 open end 347 inner radial surface 348 latches 349 outer radial surface 350 sealing ring 351 outer radial seal 352 actuation 353 inner radial seal 354 inner axial pressurizing structures 355 extension outer axial 356 outer axial pressurizing structures 357 open chamber 358 actuator 360 axial inner side 362 axial outer side 366 handle 368 threaded actuator shaft 370 inner end 371 anchorage location 372 spring 373 fixed nut 374 outer cable anchor structure 376 cable anchor plates 378 bridge plate 380 cable lashing locations 382 outer fastening sections 384 retainer 430 sealing unit 450 sealing ring 452 actuation arrangement 454 internal axial pressurizing structure 455 external axial extension 456 external axial pressurizing structure 458 artist 466 handle 468 threaded shaft 470 spring end 472 anchoring location 471 anchoring location 472 anchoring location 472 anchoring location 472 anchoring position 471 anchoring position 472 anchoring position 472 anchorage points 472 anchorage points 472 positioning anchor 471 positioning anchor 471 positioning anchor 472 positioning anchor 471 positioning anchors 472 positioning anchors 472 locator anchors knob 491 base 492 intermediate link 493 first articulation axis 494 second articulation axis L total axial length L1 first axial length L2 second axial length P1 not driven position P2 driven position S1 axial spacing S2 axial spacing
    权利要求:
    Claims (15)
    [0001]
    1. Housing (20) characterized by the fact that it comprises: a housing (22) that has an end (24) that defines an opening of the sealing unit (26); a sealing unit (28) that fits inside the opening sealing unit (26), the sealing unit (28) including a sealing arrangement (32) defining a plurality of cable ports (30), the sealing arrangement also being configured to provide a peripheral seal between the housing (22) and the sealing unit (28), the sealing unit (28) also including an actuation arrangement (31) to pressurize the sealing arrangement (32) inside the sealing unit opening (26), being that the actuation arrangement (31) includes internal and external pressure structures (60, 62) among which the sealing arrangement (32) is positioned, and the actuation arrangement (31) includes a spring (52) for apply a pressurizing force that causes the sealing arrangement (32) to be pressurized then re the internal and external pressurization structures (60, 62) when the actuation arrangement (31) is activated, in which the sealing arrangement (32) includes a plurality of sealing modules (33a to 33e), each dimensioned to form only a portion of the pressure-actuated actuation arrangement (32), the sealing modules (33a to 33e) being individually installable between the internal and external pressurizing structures (60, 62) and are individually removable from between the internal and external pressurization structures (60, 62), in which each sealing module (33a to 33e) has a total axial length (L) that extends between the first and second axial ends (70, 72) of the sealing module (33a to 33e) along a central geometric axis (91) of the sealing module (33a to 33e), wherein the sealing modules (33a to 33e) each include a sealing volume (74) contained at least partially between the first and second axial retaining structures (76, 78), without than the first and second axial retaining structures (76, 78) form the first and second axial ends (70, 72) of the sealing modules (33a to 33e), with the sealing modules (33a to 33e) each one, define at least one of the cable ports (30), the cable ports (30) extending axially through the sealing volume (74), the sealing volumes (74) including cable sealing surfaces (80 ) that extend around the cable ports (30), the sealing volumes (74) each also including exposed external sealing surfaces (84) that surround the peripheries of the sealing modules (33a to 33e ), wherein the sealing arrangement (32) includes at least three of the sealing modules (33); and that the sealing volumes (74) of the sealing modules (33a to 33e) include at least one first and second sealing parts (74a, 74b) that can be separated to allow lateral insertion of the cable in the sealing modules (33a to 33e), and where the first and second axial containment structures (76, 78) of the sealing modules (33a to 33e) each include first and second containment parts (76a, 76b, 78a, 78b) corresponding to the first and second sealing parts (74a, 74b); and in which portions of the exposed external sealing surfaces (84) cooperate to form the peripheral seal between the housing (22) and the sealing unit (28).
    [0002]
    2. Housing according to claim 1, characterized by the fact that the sealing arrangement (32) includes at least four, five or six of the sealing modules (33).
    [0003]
    3. Enclosure according to claim 1 or 2, characterized in that the first and second axial retaining structures (76, 78) of the cable sealing modules (33a to 33e) define retaining structure openings ( 94) that line up with the cable ports (30).
    [0004]
    4. Enclosure according to any one of claims 1 to 3, characterized in that the first and second axial retaining structures (76, 78) are configured to lock respectively with the internal and external pressurizing structures (60, 62 ) of the provision of action (31).
    [0005]
    5. Housing according to any one of claims 1 to 4, characterized by the fact that the first and second axial retaining structures (76, 78) define receptacles (102) to receive corresponding projections (96) provided in the pressure structures internal and external use (60, 62) of the actuation provision (31).
    [0006]
    6. Housing according to any one of claims 1 to 5, characterized in that the engagement portions (96) of the internal and external pressurizing structures (60, 62) overlap the first and second axial retaining structures (76 , 78) of the sealing modules (33a to 33e).
    [0007]
    7. Housing according to any one of claims 1 to 6, characterized in that the first and second axial retaining structures (76, 78) are attached to the sealing volumes (74).
    [0008]
    Casing according to any one of claims 1 to 7, characterized in that the cable sealing surfaces (80) have first axial lengths (L1) that extend between the first and the second axial containment structures ( 76, 78), where the outer sealing surfaces (84) have second axial lengths (L2) that extend between the first and second axial retaining structures (76, 78) and where the first axial lengths (L1) are longer than the second axial lengths (L2).
    [0009]
    9. Housing according to any one of claims 1 to 8, characterized by the fact that the sealing volumes (74) include gel, and in which the peripheries of the cable sealing modules (33a to 33e) will contact the gel from the adjacent cable seal modules (33a to 33e).
    [0010]
    10. Housing according to any one of claims 1 to 9, characterized in that the first and second axial containment structures (76, 78) are configured to match the internal and external pressurization structures (60, 62) of the actuation disposition (31).
    [0011]
    11. Casing according to any one of claims 1 to 10, characterized by the fact that the first and second axial containment structures (76, 78) interface with the internal and external pressurization structures (60, 62), in accordance with so that the internal and external pressurization structures (60, 62) apply pressure axially through the first and second axial containment structures (76, 78) to the sealing volumes (74) when the actuation arrangement (31) is activated.
    [0012]
    12. Enclosure according to claim 11, characterized by the fact that the sealing volumes (74) of the sealing modules (33a to 33e) are in contact with each other when assembled together and are pressurized simultaneously and collectively between the structures of internal and external pressurization (60, 62) when the actuation arrangement (31) is activated.
    [0013]
    13. Housing, according to claim 12, characterized by the fact that the actuation arrangement (31) includes a screw-type screw actuator.
    [0014]
    14. Housing according to claim 12 or 13, characterized by the fact that the actuation arrangement (31) includes an axis (170) centrally located in the sealing unit (28).
    [0015]
    15. Enclosure according to any one of claims 1 to 14, characterized in that the sealing arrangement (32) can be reconfigured to accommodate cables of different sizes, shapes / profiles of cross section and numbers.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP2867962B1|2017-03-01|
    ES2790699T3|2020-10-28|
    US10680426B2|2020-06-09|
    NZ703751A|2016-10-28|
    RU2632929C2|2017-10-11|
    HUE049716T2|2020-10-28|
    HUE034399T2|2018-02-28|
    RU2015103148A|2016-08-20|
    ECSP15001562A|2016-01-29|
    US20150137461A1|2015-05-21|
    AR091642A1|2015-02-18|
    PH12014502884A1|2015-02-23|
    ZA201500693B|2016-01-27|
    AU2013286141A1|2015-01-22|
    US20210313789A1|2021-10-07|
    AU2013286141B2|2017-03-30|
    AU2013286141A2|2015-02-12|
    MX2014015750A|2015-06-17|
    PE20150307A1|2015-03-03|
    EP3176890A3|2017-08-23|
    US20180248350A1|2018-08-30|
    MX342790B|2016-10-12|
    KR20150037967A|2015-04-08|
    EP3176890B1|2020-03-11|
    CL2014003552A1|2015-08-14|
    DK2867962T3|2017-06-12|
    WO2014005916A2|2014-01-09|
    EP2867962A2|2015-05-06|
    WO2014005916A3|2014-03-27|
    PL3176890T3|2020-08-24|
    CN104641524A|2015-05-20|
    US9948082B2|2018-04-17|
    BR112014032744A2|2017-06-27|
    EP3176890A2|2017-06-07|
    CN104641524B|2017-09-26|
    AU2013286141A8|2015-08-27|
    CA2876961A1|2014-01-09|
    AU2017203743B2|2018-08-09|
    AU2017203743A1|2017-06-22|
    CO7240363A2|2015-04-17|
    US20200389007A1|2020-12-10|
    DE202013012385U1|2016-08-09|
    ES2630828T3|2017-08-24|
    DE202013012284U1|2016-01-18|
    PL2867962T3|2017-08-31|
    KR102184478B1|2020-12-01|
    DK3176890T3|2020-05-18|
    US20160204592A1|2016-07-14|
    US9685776B2|2017-06-20|
    PH12014502884B1|2015-02-23|
    AP2014008148A0|2014-12-31|
    DE202013012190U1|2015-10-16|
    US10951017B2|2021-03-16|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-12-24| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-29| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-02| 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 27/06/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201261667326P| true| 2012-07-02|2012-07-02|
    US61/667,326|2012-07-02|
    US201361766523P| true| 2013-02-19|2013-02-19|
    US61/766,523|2013-02-19|
    PCT/EP2013/063486|WO2014005916A2|2012-07-02|2013-06-27|Cable sealing unit with multiple sealing modules|
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