Patent US4496796A successfully refreshed from Google Patents.
US4496796A
Expired / Lapsed
US
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Buoyant cable
Assignee: Nokia Oyj
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Filing: 1982-10-21
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Granted: 1985-01-29
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Expires: 2002-10-21
Abstract
Abstract The invention relates to a buoyant cable. The cable sheath (3) is divided into two portions (4 and 5) whereby the cable conductor (1) is placed in one (4) of the portions and the cable float (2) in the other portion (5). Thus, the cable conductor is substantially in communication with the surrounding water only through the conductor insulation (14) and the cable sheath (3).
Inventors
- 👤 Keijo E. Matikainen
- 👤 Raimo M. Jarvinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:19
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/17; H01B7/18; H01B7/182; H01B7/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
74 words
A buoyant cable comprising: (a) a conductor; (b) a float for buoyantly supporting said conductor in water, said float being separate from said conductor; and (c) a cable sheath having connected sheath portions for said conductor and said float, said cable sheath surrounding said conductor and said float in said connected sheath portions to form a buoyant cable wherein heat is transmitted from said conductor into surrounding water substantially without passing through said float.
Claim 2
Dependent Claim
74 words
A buoyant cable comprising: (a) a conductor; (b) a float for buoyantly supporting said conductor in water, said float being separate from said conductor; and (c) a cable sheath having connected sheath portions for said conductor and said float, said cable sheath surrounding said conductor and said float in said connected sheath portions to form a buoyant cable wherein heat is transmitted from said conductor into surrounding water substantially without passing through said float.
Claim 3
Dependent Claim
37 words
A buoyant cable according to claim 1, wherein said cable sheath is formed with a figure eight cross-section having two loops, said conductor being positioned in one loop and said float being positioned in the other loop.
Claim 4
Dependent Claim
25 words
A buoyant cable according to claim 1 or 2, wherein a wire for taking up tensile forces applied to said cable extends through said float.
Claim 5
Dependent Claim
26 words
A buoyant cable according to claim 3, wherein wires for taking up tensile forces applied to said cable are positioned at the periphery of said float.
Claim 6
Dependent Claim
14 words
A buoyant cable according to claim 4, wherein said wires are aromatic polyamide fibers.
Claim 7
Dependent Claim
20 words
A buoyant cable according to claims 1 or 2 wherein said float is made of foamed polyethylene having closed pores.
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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) | 1988-01-29 | 1988-07-30 | 1989-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-29 | 1992-07-30 | 1993-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-29 | 1996-07-30 | 1997-01-29 | $7700.00 | Window Closed / Lapsed |