US4092485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas insulated electrical high or very high voltage cable
Assignee: WANSER GERHARD AH
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Filing: 1976-11-02
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Granted: 1978-05-30
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Expires: 1996-11-02
Abstract
Abstract The inner conductor of a gas filled high voltage cable is of composite construction in that a core of alkali-metal, an alloy thereof or two or more alkali-metals, are arranged in a thermoplastic or elastomeric cover which, in turn, is contained in a corrugated metal tube. The outer conductor and spacers are conventional.
Inventors
- 👤 Gerhard A. H. Wanser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:32
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/06; H01B9/0638; H01B7/00; H01B7/0009; H01B7/0036; Y; Y10; Y10S; Y10S174/00; Y10S174/07
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
82 words
Gas insulated electrical high or ultrahigh voltage cable for transmitting high currents and including a current conducting, inner conductor and an outer tube spaced from the inner conductor in coaxial relation, the improvement comprising: the inner conductor including a core of alkali-metal, an alloy thereof or two or more alkali-metals, being arranged within an adjoining protective cover made of thermoplastic or elastomeric material, said inner conductor further including a metal envelope enclosing the cover and being comprised of a corrugated metal tube.
Claim 2
Dependent Claim
82 words
Gas insulated electrical high or ultrahigh voltage cable for transmitting high currents and including a current conducting, inner conductor and an outer tube spaced from the inner conductor in coaxial relation, the improvement comprising: the inner conductor including a core of alkali-metal, an alloy thereof or two or more alkali-metals, being arranged within an adjoining protective cover made of thermoplastic or elastomeric material, said inner conductor further including a metal envelope enclosing the cover and being comprised of a corrugated metal tube.
Claim 3
Dependent Claim
39 words
Cable in accordance with claim 1, wherein the metal tube is comprised of a longitudinally paid metal strip formed into a tube, welded at the endges, and subsequently corrugated, the strip being preferably comprised of copper or an alloy.
Claim 4
Dependent Claim
24 words
Cable in accordance with claim 1, wherein the cover sits tightly on the core, but the metal tube sits only loosely on the cover.
Claim 5
Dependent Claim
20 words
Cable as in claim 3, wherein the space between the cover and the envelope is filled with an inert gas.
Claim 6
Dependent Claim
19 words
Cable as in claim 1, wherein the protective cover contains additives increasing the thermal conductivity and/or the electrical conductivity.
Claim 7
Dependent Claim
26 words
Cable as in claim 1, wherein the protective cover as insulating the inner conductor is covered with an additional, conductive layer serving as an outer shield.
Claim 8
Dependent Claim
21 words
Cable as in claim 1, wherein the corrugation valleys of the corrugated tube sit on the insulating or conductive layer underneath.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |