Patent FR833532A successfully refreshed from Google Patents.
US3292016A
Expired / Lapsed
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Superconducting three-phase current cable
Assignee: Siemens Schuckertwerke AG
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Filing: 1963-09-23
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Granted: 1966-12-13
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Kafka Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:27
CPC Classifications
H; H01; H01B; H01B12/00; H10; H10N; H10N60/00; H10N60/20; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/885; Y10S505/886
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A MULTI-PHASE CABLE ARRANGEMENT FOR USE BETWEEN A SOURCE AND A LOAD, COMPRISING LEAD MEANS FOR EACH PHASE, EACH OF SAID LEAD MEANS HAVING SPACED OPPOSITE ENDS AND INCLUDING TWO CONCENTRICALLY-ARRANGED MUTUALLYINSULATED SUPERCONDUCTING TUBES POSITIONED AS INNER AND OUTER CONDUCTORS, LOAD CIRCUIT MEANS FOR CONNECTING EACH LOAD PHASE BETWEEN THE INNER AND OUTER ONES OF THE CONDUCTORS OF THE CORRESPONDING LEAD MEANS, SOURCE CIRCUIT MEANS FOR CONNECTING EACH PHASE OF THE SOURCE ACROSS THE TUBES OF SAID RESPECTIVE LEAD MEANS, NETWORK MEANS FOR INTERCONNECTING SAID LEAD MEANS IN MULTI-PHASE ARRANGEMENT AT ONLY ONE END OF SAID LEAD MEANS, EACH OF SAID INNER TUBES HAVING AN INTERIOR METALLIC LAYER AND AN OUTER LAYER OF SUPERCONDUCTING MATERIAL, LIQUID HELIUM FILLING SAID INNER TUBE, EACH OF SAID OUTER TUBES HAVING A SUPERCONDUCTING LAYER AND TWO INSULATING LAYERS JACKETING SAID SUPERCONDUCTING LAYER ON EACH SIDE, HEAT-INSULATING MEANS EMBRACING A NUMBER OF SAID LEAD MEANS COLLECTIVELY AND FORMING A COOLING SPACE BETWEEN SAID HEATINSULATING MEANS AND SAID LEAD MEANS, SAID COOLING SPACE BEING FILLED WITH LIQUID HELIUM, PORT MEANS IN SAID LEAD MEANS FOR CONNECTING THE INTERIOR OF THE INNER TUBE WITH THE COOLING SPACE, AND PUMP MEANS CONNECTED TO SAID COOLING SPACED FOR CIRCULATING THE LIQUID HELIUM THROUGH THE COOLING SPACE AND THE INTERIOR OF THE INNER TUBE.
Claim 2
Dependent Claim
214 words
A MULTI-PHASE CABLE ARRANGEMENT FOR USE BETWEEN A SOURCE AND A LOAD, COMPRISING LEAD MEANS FOR EACH PHASE, EACH OF SAID LEAD MEANS HAVING SPACED OPPOSITE ENDS AND INCLUDING TWO CONCENTRICALLY-ARRANGED MUTUALLYINSULATED SUPERCONDUCTING TUBES POSITIONED AS INNER AND OUTER CONDUCTORS, LOAD CIRCUIT MEANS FOR CONNECTING EACH LOAD PHASE BETWEEN THE INNER AND OUTER ONES OF THE CONDUCTORS OF THE CORRESPONDING LEAD MEANS, SOURCE CIRCUIT MEANS FOR CONNECTING EACH PHASE OF THE SOURCE ACROSS THE TUBES OF SAID RESPECTIVE LEAD MEANS, NETWORK MEANS FOR INTERCONNECTING SAID LEAD MEANS IN MULTI-PHASE ARRANGEMENT AT ONLY ONE END OF SAID LEAD MEANS, EACH OF SAID INNER TUBES HAVING AN INTERIOR METALLIC LAYER AND AN OUTER LAYER OF SUPERCONDUCTING MATERIAL, LIQUID HELIUM FILLING SAID INNER TUBE, EACH OF SAID OUTER TUBES HAVING A SUPERCONDUCTING LAYER AND TWO INSULATING LAYERS JACKETING SAID SUPERCONDUCTING LAYER ON EACH SIDE, HEAT-INSULATING MEANS EMBRACING A NUMBER OF SAID LEAD MEANS COLLECTIVELY AND FORMING A COOLING SPACE BETWEEN SAID HEATINSULATING MEANS AND SAID LEAD MEANS, SAID COOLING SPACE BEING FILLED WITH LIQUID HELIUM, PORT MEANS IN SAID LEAD MEANS FOR CONNECTING THE INTERIOR OF THE INNER TUBE WITH THE COOLING SPACE, AND PUMP MEANS CONNECTED TO SAID COOLING SPACED FOR CIRCULATING THE LIQUID HELIUM THROUGH THE COOLING SPACE AND THE INTERIOR OF THE INNER TUBE.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |