US3243871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making ductile superconductors
Assignee: National Research Corp
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Filing: 1963-08-12
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Granted: 1966-04-05
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Expires: 1983-08-12
Abstract
No abstract record available.
Inventors
- 👤 Eugen J Saur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:44
CPC Classifications
H; H10; H10N; H10N60/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/80; Y10S505/812; Y10S505/813; Y10S505/815; Y10S505/818; Y10S505/825; Y10S505/912; Y10S505/913; Y10S505/915; Y10S505/917; Y10S505/918; Y10S505/919; Y10S505/921; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T29/4998; Y10T29/49988; Y10T428/00; Y10T428/12; Y10T428/12486
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A METHOD OF MAKING DUCTILE SUPERCONDUCTORS PROVIDING HIGH CURRENT DENSITIES THROUGH AN INTERNAL LAYER OF AN INTERMETALLIC ALLOY HARD SUPERCONDUCTOR COMPRISING THE STEPS OF PLACING A TUBE MADE OF A HIGHER MELTING COMPONENT OF THE ALLOY IN A NON-OXIDIZING ATMOSPHERE AND ANNEALING IT, MAINTAINING THE LOWER MELTING POINT COMPONENT OF THE ALLOY IN A NON-OXIDIZING ATMOSPHERE IN MOLTEN STATE TO DEGAS IT, POURING THE MOLTEN METAL INTO THE TUBE WHILE MAINTAINING THEIR TEMPERATURES BELOW THE REACTION TEMPERATURE AT WHICH THEIR BRITTLE INTERMETALLIC ALLOYS ARE FORMED, COOLING THE TUBE, COLD WORKING THE TUBE DOWN TO WIRE SIZE TO EXTEND THE INTERFACE BETWEEN THE CORE AND SHEATH THEREBY MAKING THE SHEATH READILY WETTABLE BY THE CORE MATERIALS, COLD ROLLING THEWIRE TO FLATTEN IT TO RIBBON FORM AND TO FURTHER REDUCE ITS CROSS SECTION THICKNESS AFTER FLATTENING THE WIRE TO RIBBON FORM, AND THEN HEATING THE RIBBON AT THE REACTION TEMPERATURE TO FROM THE DESIRED INTERMETALLIC, HARD SUPERCONDUCTOR ALLOY AS A DIFFUSION LAYER INSIDE THE RIBBON.
Claim 2
Independent Claim
163 words
A METHOD OF MAKING DUCTILE SUPERCONDUCTORS PROVIDING HIGH CURRENT DENSITIES THROUGH AN INTERNAL LAYER OF AN INTERMETALLIC ALLOY HARD SUPERCONDUCTOR COMPRISING THE STEPS OF PLACING A TUBE MADE OF A HIGHER MELTING COMPONENT OF THE ALLOY IN A NON-OXIDIZING ATMOSPHERE AND ANNEALING IT, MAINTAINING THE LOWER MELTING POINT COMPONENT OF THE ALLOY IN A NON-OXIDIZING ATMOSPHERE IN MOLTEN STATE TO DEGAS IT, POURING THE MOLTEN METAL INTO THE TUBE WHILE MAINTAINING THEIR TEMPERATURES BELOW THE REACTION TEMPERATURE AT WHICH THEIR BRITTLE INTERMETALLIC ALLOYS ARE FORMED, COOLING THE TUBE, COLD WORKING THE TUBE DOWN TO WIRE SIZE TO EXTEND THE INTERFACE BETWEEN THE CORE AND SHEATH THEREBY MAKING THE SHEATH READILY WETTABLE BY THE CORE MATERIALS, COLD ROLLING THEWIRE TO FLATTEN IT TO RIBBON FORM AND TO FURTHER REDUCE ITS CROSS SECTION THICKNESS AFTER FLATTENING THE WIRE TO RIBBON FORM, AND THEN HEATING THE RIBBON AT THE REACTION TEMPERATURE TO FROM THE DESIRED INTERMETALLIC, HARD SUPERCONDUCTOR ALLOY AS A DIFFUSION LAYER INSIDE THE RIBBON.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |