Patent US4093342A successfully refreshed from Google Patents.
US4093342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber cable
Assignee: Nortel Networks Ltd
•
Filing: 1976-11-17
•
Granted: 1978-06-06
•
Expires: 1996-11-17
Abstract
Abstract An optical fiber cable in which elongation under longitudinal tension is reduced by the use of a molecularly oriented plastic reinforcement member extending along the neutral axis of the cable.
Inventors
- 👤 Stanley G. Foord
- 👤 Walter E. Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:42
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4429; G02B6/4434; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; G02B6/441; G02B6/4413; B29C48/06; B29C48/09; B29C48/11; B29C48/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
An optical fiber cable comprising: a plurality of optical fibers disposed lengthwise around a high elastic modulus strength reinforcement member extending along the neutral axis of the cable; said reinforcement member consisting of a prestretched molecularly oriented plastic; a plastic tape wrapped about said fibers on said reinforement member; an extruded plastic sheath surrounding said tape on said reinforcement member; and said plastic tape being of a material different than said sheath and being contiguous with said sheath, said plastic tape providing a heat shield for said reinforcement member so that shrinkage of said reinforcement member will not occur during extrusion of said plastic sheath.
Claim 2
Dependent Claim
105 words
An optical fiber cable comprising: a plurality of optical fibers disposed lengthwise around a high elastic modulus strength reinforcement member extending along the neutral axis of the cable; said reinforcement member consisting of a prestretched molecularly oriented plastic; a plastic tape wrapped about said fibers on said reinforement member; an extruded plastic sheath surrounding said tape on said reinforcement member; and said plastic tape being of a material different than said sheath and being contiguous with said sheath, said plastic tape providing a heat shield for said reinforcement member so that shrinkage of said reinforcement member will not occur during extrusion of said plastic sheath.
References Cited (Backward Citations)
US3564835A
Cited
US3962153A
Cited
US3699950A
Cited
US3766307A
Cited
US3865466A
Cited
US3883218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |