Communication cable having water blocking strength members
First Claim
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1. A communications cable, comprising:
- a core having a longitudinal axis and comprising at least one communications medium;
a jacket which comprises a plastic material and which encloses said core; and
a longitudinally extending, relatively supple strength member system for the cable which is disposed between said core and said jacket, said strength member system having a relatively high modulus to provide suitable strength characteristics for said cable and including means for blocking water flow within said cable.
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Abstract
A communications cable (20) comprising a core (22) of at least one transmission media and a plastic jacket (34) includes provisions for preventing the movement of water within the cable. The cable includes a strength system (32) including longitudinally extending fibrous strength members (32-33) having a relatively high modulus and having water blocking provisions. In one embodiment, each fibrous strength member is treated with a superabsorbent liquid material which when dry fills interstices and covers portions of the exterior thereof. In another embodiment, a filamentary strand material comprising a water swellable fibrous material is wrapped about each fibrous strength member.
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Citations
24 Claims
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1. A communications cable, comprising:
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a core having a longitudinal axis and comprising at least one communications medium; a jacket which comprises a plastic material and which encloses said core; and a longitudinally extending, relatively supple strength member system for the cable which is disposed between said core and said jacket, said strength member system having a relatively high modulus to provide suitable strength characteristics for said cable and including means for blocking water flow within said cable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification