US3735018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercooled electric cable
Assignee: KM Kabelmetal AG
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Filing: 1971-08-30
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Granted: 1973-05-22
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Expires: 1991-08-30
Abstract
Abstract A supercooled electric cable having a conductor element centrally disposed within a tubular sheath for passing a coolant such as liquid helium therethrough, spacer elements being provided for locating the conductor element relative to the tubular sheath; the spacer elements being of a configuration such as to maintain the conductor element in a selected position relative to the sheath during the installation of the cable as well as at operating temperatures.
Inventors
- 👤 W Griesinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:12
CPC Classifications
H; H01; H01B; H01B12/00; H01B12/14; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/887
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
A supercooled electric cable comprising an elongated superconductive element, a tubular member and spacer means for locating said element within said tubular member, said spacer means comprising a disc member having a peripheral portion engageable with an inner surface portion of said tubular member and a hub portion formed with a slot for receiving and engaging a portion of said superconductive element, the slot in said disc member being located to dispose the engaged portion of said superconductive element in eccentric relation to the longitudinal axis of said tubular member.
Claim 2
Dependent Claim
90 words
A supercooled electric cable comprising an elongated superconductive element, a tubular member and spacer means for locating said element within said tubular member, said spacer means comprising a disc member having a peripheral portion engageable with an inner surface portion of said tubular member and a hub portion formed with a slot for receiving and engaging a portion of said superconductive element, the slot in said disc member being located to dispose the engaged portion of said superconductive element in eccentric relation to the longitudinal axis of said tubular member.
Claim 3
Dependent Claim
29 words
A cable as in claim 1, wherein said disc member comprises a part circular circumferential rib portion and radial arm portions connecting said rib portion with said hub portion.
Claim 4
Dependent Claim
31 words
A cable as in claim 2, wherein said tubular member is helically corrugated, the rib portion of said disc member being received in a helical groove portion of said tubular member.
Claim 5
Dependent Claim
42 words
A cable as in claim 1 wherein said spacer means comprises a plurality of longitudinally spaced disc members, the engaged portions of the superconductive element in successive disc members being respectively on opposite sides of the longitudinal axis of said tubular member.
Claim 6
Dependent Claim
30 words
A cable as in claim 1 wherein said slot is slightly smaller then the cross section of said superconductive element whereby said element has a snap fit in said slot.
Claim 7
Dependent Claim
20 words
A cable as in claim 1 wherein said spacer member is formed of a synthetic resin of low heat conductivity.
Claim 8
Dependent Claim
19 words
A cable as in claim 2, wherein said circumferential rib portion has a circumferential extent somewhat greater then 180*.
Claim 9
Dependent Claim
24 words
A cable as in claim 4, wherein the slots in successive disc members are in displaced relationship by an angle of about 180* .
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |