EP0351100A2
Expired / Lapsed
EP
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Communication cable
Assignee: AT&T Inc
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Filing: 1989-06-29
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Granted: —
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Expires: 2009-06-29
Abstract
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 (33-33) 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.
Inventors
- 👤 Candido John Arroyo
- 👤 Jill Batchelor Fluevog
- 👤 Krishnaswamy Kathiresan
- 👤 Parbhubhai D. Patel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 21:55
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4429; G02B6/44384; G02B6/4415; G02B6/4416; G02B6/443; G02B6/4432; H; H01; H01B; H01B7/00; H01B7/17; H01B7/28; H01B7/282; H01B7/285; H01B7/288
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
81 words
A communication cable, comprising a core (22) having a longitudinal axis (21) and comprising at least one communications medium (26) and a jacket (34) which comprises a plastic material and which encloses said core, said cable being characterized in that: a longitudinally extending, relatively supple strength member system (32) 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 being provided with water blocking provisions.
Claim 2
Dependent Claim
81 words
A communication cable, comprising a core (22) having a longitudinal axis (21) and comprising at least one communications medium (26) and a jacket (34) which comprises a plastic material and which encloses said core, said cable being characterized in that: a longitudinally extending, relatively supple strength member system (32) 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 being provided with water blocking provisions.
Claim 3
Dependent Claim
25 words
The communications cable of claim 1, wherein said relatively supple strength member system (32) includes fibrous material which has been treated with a superabsorbent material.
Claim 4
Dependent Claim
26 words
The communications cable of claim 1, wherein said relatively supple system includes fibrous material (64) about which has been wrapped a filamentary water blocking material (66).
Claim 5
Dependent Claim
28 words
The communications cable of claim 1, wherein said core comprises a plurality of optical fibers (26) which have been arrayed about a longitudinally extending, centrally disposed member (25).
Claim 6
Dependent Claim
39 words
The communications cable of claim 1, wherein said core is enclosed by a strength member system (32) which includes a plurality of fibrous strength members each having a relatively high modulus and which is provided with water blocking provisions.
Claim 7
Dependent Claim
19 words
The communications cable of claim 5, wherein said fibrous strength member system has been treated with a superabsorbent material.
Claim 8
Dependent Claim
31 words
The communications cable of claim 5, wherein said fibrous strength member system includes a plurality of fibrous members about each of which has been wrapped a filamentary water blocking fibrous material.
Claim 9
Dependent Claim
51 words
The cable of claim 1, wherein said cable includes a centrally disposed member, a plurality of optical fiber components disposed about said centrally disposed member, a strength member system and a plastic jacket and wherein longitudinally extending supplementary water blocking members are disposed between said strength member system and said core.
Claim 10
Dependent Claim
34 words
The cable of claim 8, wherein said plurality of optical fiber components are enclosed by a strength member system which comprises a plurality of relatively supple fibrous strength members and by said plastic jacket.
Claim 11
Dependent Claim
38 words
The cable of claim 8, wherein each of said optical fiber components includes an optical fiber, at least one layer of a coating material, a layer of relatively supple fibrous strength members (28) and a plastic jacket (29).
References Cited (Backward Citations)
No citation records indexed.
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