摘要:
A device for forming a seal around an elongate member, such as a wire, is provided. A device includes a first housing part and a second housing part movably connected to the first part. Sealing material such as a gel is positioned in the first housing part and provides a surface onto which the elongate member may be placed. A first member is positioned in the second housing part so as to displace the elongate member substantially laterally into the sealing material on movement of the second housing part relative to the first housing part. A device for applying a force to the sealing material on relative movement of the housing parts is also provided.
摘要:
A compression-expandable plug provides lateral expansion of an elastomeric gasket to seal around mini-tubes within an optical fiber duct, the mini-tubes containing optical fibers. The compression-expandable plug includes an elastomeric gasket having longitudinal passages configured to be positioned around optical-fiber-containing mini-tubes in an optical fiber duct and means for longitudinally compressing the gasket thereby laterally expanding it to exert sealing pressure around the mini-tubes and between the mini-tubes and the duct. A means for limiting the longitudinal compression applied to the gasket to limit the sealing pressure to a level selected to limit damage to the optical fibers may be provided.
摘要:
A device for environmental protection of an electrical component on a mount, e.g. a circuit board, includes: a first housing part; a second housing part which together with the first housing part provides a substantially closed housing; a mount (e.g. a circuit board) for an electrical component that may be movably secured with respect to the first housing part; and a sealing material positioned between the mount and a surface of the first housing part; such that the mount can be moved with respect to the first housing part to put the sealing material under compression. The device can also include a maintenance termination unit for a telecommunications network.
摘要:
A branch-off region at an end of a sleeve (2), enclosing for example a branch in a telecommunications cable, is sealed by positioning at the end of the sleeve (2) a clip (1) or a filling piece that forms terminal conduits (3), positioning a heat-activatable adhesive (5) in the end, and activating the adhesive by a heater such as an electrical heater.
摘要:
Apparatus (1) for sealing an optical fibre guide tube or duct (11) from which an optical fibre cable (10) emerges comprises a resilient sleeve (2) having in its unexpanded state an inner diameter smaller than the outer diameter of the optical fibre guide tube (11), and a clamping member (3) for sealingly clamping part of the resilient sleeve (2) around the optical fibre cable (10). The resilient sleeve is preferably made of a thermoplastic elastomer. Resilient sealing material may be introduced into the sleeve while resisting introduction of the sealing material into the interior of the tube or duct.
摘要:
A sealing arrangement is provided including a first housing and a second housing and a sealing member positioned therebetween. In various embodiments, one housing includes a channel shaped portion and the other housing includes a tongue shaped portion movable in an axial direction into the channel shaped portion to compress the sealing member therebetween in a transverse direction relative to the axial direction. In further embodiments, both housings include a channel shaped portion and the sealing member extends into each channel shaped portion and is compressed within each channel shaped portion in a transverse direction.
摘要:
A closure is provided including a casing part having at least one opening configured to receive an elongate object within the casing part. A sealing chamber defined by the casing part is positioned adjacent the opening so as to receive the elongate object in the sealing chamber and a sealant material is positioned in the sealing chamber. A relatively displaceable wall part of the casing part in provided in various embodiments which communicatively contacts the sealant material and is coupled to another part of the casing part by a flexible hinge part so as to allow movement of the relatively displaceable wall part relative to the other part of the casing. A compression means may be provided for applying a compressive force to the sealant material through the relatively displaceable wall part. In further embodiments a displaceable plunger is provided defining a wall of the sealing chamber and an externally operable shaft threadably engages the plunger so as to displace the plunger to adjust a volume of the sealant chamber.
摘要:
A cable connector housing (11) for surrounding and sealing a coaxial cable connection, the housing (11) comprising two elongate body portions (12) (13) that surround the cable (51) and connector (52). One end of the housing (11) has a smaller part or opening (14) for accommodating the cable and the other end of the housing has a larger opening (15) for accommodating a connector. The one end of the housing (11) is shaped preferably frusto-conically, to force sealing gel within the housing (11) towards the other end of the housing when the two body portions are assembled around the connection.
摘要:
Two optical fibres are spliced together, and the splice and a loop of fibre organized in an organizer, for example by securing the splice in a projection (11) and accommodating the loop in a tray (12). The organizer also comprises an engagement means for example cylindrical extensions (13) into engagement with which a heat recoverable sleeve (not shown) surrounding the organizer and splice can be recovered to enclose the splice.
摘要:
A branch-off region at an end of a sleeve (2), enclosing for example a branch in a telecommunications cable, is sealed by a method which includes positioning at the end of the sleeve (2) some means for example a clip (1) or a filling piece that forms terminal conduits (3), positioning a heat-activatable adhesive (5) in the end, and activating the adhesive by a heating means such as an electrical heater.