US4765711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater fiber optic cable weighted with metal particles
Assignee: Corning Research and Development Corp
•
Filing: 1983-09-16
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Granted: 1988-08-23
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Expires: 2003-09-16
Abstract
Abstract A fiber optic cable adapted for underwater duty comprising a core of optical fibers circumferentially surrounded by jacket, the jacket being composed of metal particles suspended or embedded in a plastic.
Inventors
- 👤 Donald L. Obst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:35
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4415; G02B6/4427
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
44 words
A fiber optic cable comprising: (a) a core comprising a strength member and a plurality of optical fibers; (b) a jacket circumscribing and spaced apart from said core defining a volume; and, (c) said volume occupied by a mixture of metal particles and plastic.
Claim 2
Dependent Claim
44 words
A fiber optic cable comprising: (a) a core comprising a strength member and a plurality of optical fibers; (b) a jacket circumscribing and spaced apart from said core defining a volume; and, (c) said volume occupied by a mixture of metal particles and plastic.
Claim 3
Dependent Claim
31 words
The fiber optic cable of claim 1 wherein said jacket is composed of a material selected from the group consisting essentially of rubber, polyamide, polyurethane, polyvinyl chloride, polyolefin, and mixtures thereof.
Claim 4
Dependent Claim
30 words
The fiber optic cable of claim 1 wherein said metal particles are either ferrous or nonferrous metals or mixtures thereof and at least some of which are spherical in shape.
Claim 5
Dependent Claim
23 words
The fiber optic cable of claim 1 wherein said metal particles are steel and have a particle size between 0.02 and 0.04 inches.
Claim 6
Dependent Claim
18 words
The fiber optic cable of claim 1 wherein the metal particles occupy 25% to 75% of the volume.
Claim 7
Dependent Claim
20 words
The fiber optic cable of claim 1 wherein the plastic occupying volume is between 25% and 75% of the volume.
Claim 8
Dependent Claim
30 words
The fiber optic cable of claim 1 wherein the plastic occupying the volume is selected from the group consisting essentially of rubber, polyolefin, polyvinyl chloride, polyamide, polyurethane, and mixtures thereof.
Claim 9
Dependent Claim
29 words
The fiber optic cable of claim 1 wherein the particle size of said metal particles is such that it will pass a screen having screen openings of 0.0394 inches.
Claim 10
Dependent Claim
26 words
The fiber optic cable of claim 1 wherein said strength member is made from materials selected from the group comprising steel, iron, polyamide, aramide and graphite.
References Cited (Backward Citations)
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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) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |