Patent US450552A successfully refreshed from Google Patents.
Patent US2178258A successfully refreshed from Google Patents.
Patent US3604833A successfully refreshed from Google Patents.
US3604833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction for cryogenic cables
Assignee: KM Kabelmetal AG
•
Filing: 1969-11-28
•
Granted: 1971-09-14
•
Expires: 1989-11-28
Abstract
Abstract Superconductive strings are stranded with insulating strings to form a rope which is inserted in a pipe otherwise filled with or passed through by coolant to obtain cryogenic conditions.
Inventors
- 👤 August Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:47
CPC Classifications
H; H01; H01B; H01B12/00; H01B12/02; H01B12/08; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/885; Y10S505/886
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
74 words
Construction for cryogenic cables which includes a pipe as enclosure for superconductive means, comprising a first plurality of individual superconductive strings in the pipe, and a second plurality of insulating strings stranded with the individual strings of the first plurAlity so that some of the strings of the second plurality separate the individual strings of the first plurality and are stranded therewith at similar twist to form a ropelike construction disposed in the pipe.
Claim 2
Dependent Claim
74 words
Construction for cryogenic cables which includes a pipe as enclosure for superconductive means, comprising a first plurality of individual superconductive strings in the pipe, and a second plurality of insulating strings stranded with the individual strings of the first plurAlity so that some of the strings of the second plurality separate the individual strings of the first plurality and are stranded therewith at similar twist to form a ropelike construction disposed in the pipe.
Claim 3
Dependent Claim
24 words
Cable construction as in claim 1, including a core, supporting a layer of stranded strings which includes strings of the first and second pluralities.
Claim 4
Dependent Claim
24 words
Cable construction as in claim 1, including a stranded string core, and a layer of stranded strings thereon which includes strings of the pluralities.
Claim 5
Dependent Claim
16 words
Cable construction as in claim 1, at least some strings of the pluralities having solid section.
Claim 6
Dependent Claim
16 words
Cable construction as in claim 1, at least some strings of the pluralities having tubular section.
Claim 7
Dependent Claim
27 words
Cable construction as in claim 1, at least some strings of the first plurality including a tubular carrier of nonsuperconductive material with a layer of superconductive material.
Claim 8
Dependent Claim
39 words
Cable construction as in claim 1, the rope including a core, the core being comprised of a tube, there being at least one layer of stranded strings on the core, the strings pertaining to the first and second pluralities.
Claim 9
Dependent Claim
16 words
Cable construction as in claim 7, the tube having apertures to permit passage of cryogenic liquid.
Claim 10
Dependent Claim
34 words
Cable construction as in claim 1, the strings of the first plurality pertaining to a layer of strings which includes spacer strings of the second plurality, the strings of the layer having similar twist.
Claim 11
Dependent Claim
22 words
Cable construction as in claim 9, the spacer strings having diameter similar to the diameter of the strings of the first plurality.
Claim 12
Dependent Claim
15 words
Cable construction as in claim 9, there being insulated string wound helically upon the layer.
Claim 13
Dependent Claim
37 words
Cable construction as in claim 1, the strings of the pluralities stranded in several layers, one layer thereof including the strings of the first plurality with spacer strings of the second plurality interposed in the same layer.
Claim 14
Dependent Claim
15 words
Cable construction as in claim 12, the strings of adjacent layers stranded with opposite twist.
Claim 15
Dependent Claim
28 words
Cable construction as in claim 1, at least some strings of the first plurality including a tubular solid carrier of nonsuperconductive material with a layer of superconductive material.
References Cited (Backward Citations)
US2879317A
Cited
US3106600A
Cited
US3187235A
Cited
US3293009A
Cited
US3444307A
Cited
US3448222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |