US4767183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength, heavy walled cable construction
Assignee: Westinghouse Electric Corp
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Filing: 1986-05-12
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Granted: 1988-08-30
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Expires: 2006-05-12
Abstract
Abstract An optical fiber is surrounded by a protective cladding of a liquid crystal material and fabricated by passing the optical fiber through a die member which operates to deposit relatively thin individual high-strength layers built up to a desired thickness. In another embodiment, the desired thickness is achieved by surrounding the optical fiber or fibers with a plurality of individual high-strength strands of liquid crystal polymer collectively compressed about the optical fiber(s).
Inventors
- 👤 Frank E. Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:04
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/88; B29C43/00; B29C43/22; B29C43/224; B29C48/00; B29C48/03; B29C48/09; B29C48/15; B29C48/156; B29C48/16; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29C48/336; B29C48/3363; B29C48/34; B29D; B29D11/00; B29D11/00663; G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4429; G02B6/443; G02B6/4479; G02B6/4486; B29C48/05; B29K; B29K2105/00; B29K2105/0079; B29L; B29L2011/00; B29L2011/0075; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
100 words
A high strength protected cable comprising: (A) an elongated core member for conduction of energy; (B) an outer protective jacket for said core member; (C) said outer protective jacket being of a liquid crystal polymer of the type which is thermoplastic and which forms rigid rod-like molecular aggregates in an overlapping orientable fashion at a point in its melt cycle, said rod-like aggregates being oriented in the direction of elongation of said core member; (D) said protective jacket being formed of a plurality of individual layers of said liquid crystal polymer collectively surrounding said core member to a desired thickness.
Claim 2
Dependent Claim
100 words
A high strength protected cable comprising: (A) an elongated core member for conduction of energy; (B) an outer protective jacket for said core member; (C) said outer protective jacket being of a liquid crystal polymer of the type which is thermoplastic and which forms rigid rod-like molecular aggregates in an overlapping orientable fashion at a point in its melt cycle, said rod-like aggregates being oriented in the direction of elongation of said core member; (D) said protective jacket being formed of a plurality of individual layers of said liquid crystal polymer collectively surrounding said core member to a desired thickness.
Claim 3
Dependent Claim
14 words
Apparatus according to claim 1 wherein: (A) said core member is an optical fiber.
Claim 4
Dependent Claim
15 words
Apparatus according to claim 2 wherein: (A) said optical fiber includes a surrounding elastomeric buffer.
Claim 5
Dependent Claim
16 words
Apparatus according to claim 1 wherein: (A) said layers are constituted by successively deposited concentric sheaths.
Claim 6
Dependent Claim
23 words
Apparatus according to claim 1 wherein: (A) said layers are constituted by strands compressed about said core member in an essentially void-free manner.
Claim 7
Dependent Claim
19 words
Apparatus according to claim 5 wherein: (A) said strands are parallel to one another and to said core member.
Claim 8
Dependent Claim
19 words
Apparatus according to claim 1 which includes: (A) a plurality of said core members surrounded by said protective jacket.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |