US4079190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submarine coaxial cable
Assignee: International Standard Electric Corp
•
Filing: 1977-02-03
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Granted: 1978-03-14
•
Expires: 1997-02-03
Abstract
Abstract The electrical screening characteristics of a submarine coaxial cable are significantly improved by increasing the overlap between the longitudinal edges of the tape return conductor to at least 10% of the return conductor circumferential length.
Inventors
- 👤 Stephen Robert Jones
- 👤 John Robert Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:27
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/14; H01B11/00; H01B11/18; H01B11/1808; H01B11/1826
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
46 words
A submarine coaxial cable having an outer return conductor formed from a longitudinally-applied strip of conductive material with overlapping longitudinal edges wherein the improvement comprises: the amount of overlap of said edges being in the range 10-20% of the return conductor circumferential length in radial cross-section.
Claim 2
Dependent Claim
46 words
A submarine coaxial cable having an outer return conductor formed from a longitudinally-applied strip of conductive material with overlapping longitudinal edges wherein the improvement comprises: the amount of overlap of said edges being in the range 10-20% of the return conductor circumferential length in radial cross-section.
Claim 3
Dependent Claim
20 words
A cable as set forth in claim 1 wherein: said overlap lies in the range 14-18% of said circumferential length.
Claim 4
Dependent Claim
16 words
A cable as set forth in claim 1 wherein: said return conductor comprises a copper tape.
Claim 5
Dependent Claim
21 words
A cable as set forth in claim 1 wherein: the thickness of said return conductor is between 0.020 and 0.025 inch.
Claim 6
Dependent Claim
100 words
A submarine cable system comprising: a coaxial cable having an outer return conductor formed from a longitudinally applied strip of conductive material with overlapping longitudinal edges; said cable having a first lengthwise portion intended for deeper water and a second lengthwise portion intended for shallow water or land; the amount of overlap of said edges being less than 10% of the return conductor circumferential length in radial cross-section for said first portion of the cable; and the amount of overlap of said edges being in the range 10-20% of the return conductor perimeter for said second portion of the cable.
Claim 7
Dependent Claim
100 words
A submarine cable system comprising: a coaxial cable having an outer return conductor formed from a longitudinally applied strip of conductive material with overlapping longitudinal edges; said cable having a first lengthwise portion intended for deeper water and a second lengthwise portion intended for shallow water or land; the amount of overlap of said edges being less than 10% of the return conductor circumferential length in radial cross-section for said first portion of the cable; and the amount of overlap of said edges being in the range 10-20% of the return conductor perimeter for said second portion of the cable.
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) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |