Patent US3262187A successfully refreshed from Google Patents.
US3262187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making superconductive wires
Assignee: National Research Corp
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Filing: 1963-09-25
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Granted: 1966-07-26
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Expires: 1983-09-25
Abstract
No abstract record available.
Inventors
- 👤 Lloyd R Allen
- 👤 Lewis R Koller
- 👤 Anton E Van Arkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:30
CPC Classifications
C; C23; C23C; C23C26/00; H; H10; H10N; H10N60/00; H10N60/01; H10N60/0184; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/80; Y10S505/812; Y10S505/813; Y10S505/815; Y10S505/818; Y10S505/825; Y10S505/917; Y10S505/918; Y10S505/919; Y10S505/921; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T29/4998; Y10T29/49988; Y10T29/49991; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12674; Y10T428/12701; Y10T428/12708; Y10T428/12771; Y10T428/12806; Y10T428/12819
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
163 words
A METHOD OF MAKING SUPERCONDUCTORS COMPRISING THE STEPS OF PREPARING A FOIL OF A FIRST METAL SELECTED FROM GROUP VB OF THE PERIODIC TABLE, PREPARING A FILM OF BRITTLE INTERSTITIAL ALLOY OF THE FIRST METAL AT THE FOIL SURFACE, THE FILM HAVING A THICKNESS BETWEEN .00001" AND .0001", COATING THE SAID FOIL WITH A SECOND METAL SELECTED FROM GROUPS III A AND IV A OF THE PERIODIC TABLE, COLD WORKING THE FOIL TO REDUCE ITS THICKNESS IN EXCESS OF 50% TO MAKE A CLAD AND DISPERSE THE BRITTLE ALLOY AND OTHER RESIDUAL BRITTLE CONTAMINANTS WHEREBY THE FOIL SURFACE IS RENDERED WETTABLE BY THE SECOND METAL AT ELEVATED TEMPERATURES, HEATING THE FOIL TO DISSOCIATE THE INTERSTITIAL COMPOUND AND DIFFUSE THE DISPERSED INTERSTITIAL ELEMENT INTO THE FOIL WHEREBY THE FOIL IS STRENGTHENED AND HEATING THE COATED FOIL TO DIFFUSE THE SECOND METAL INTO THE SURFACE OF THE FOIL TO FORM A DIFFUSION LAYER OF SUPERCONDUCTIVE ALLOY HAVING A HIGHER CRITICAL TEMPERATURE THAN THE FIRST METAL.
Claim 2
Independent Claim
163 words
A METHOD OF MAKING SUPERCONDUCTORS COMPRISING THE STEPS OF PREPARING A FOIL OF A FIRST METAL SELECTED FROM GROUP VB OF THE PERIODIC TABLE, PREPARING A FILM OF BRITTLE INTERSTITIAL ALLOY OF THE FIRST METAL AT THE FOIL SURFACE, THE FILM HAVING A THICKNESS BETWEEN .00001" AND .0001", COATING THE SAID FOIL WITH A SECOND METAL SELECTED FROM GROUPS III A AND IV A OF THE PERIODIC TABLE, COLD WORKING THE FOIL TO REDUCE ITS THICKNESS IN EXCESS OF 50% TO MAKE A CLAD AND DISPERSE THE BRITTLE ALLOY AND OTHER RESIDUAL BRITTLE CONTAMINANTS WHEREBY THE FOIL SURFACE IS RENDERED WETTABLE BY THE SECOND METAL AT ELEVATED TEMPERATURES, HEATING THE FOIL TO DISSOCIATE THE INTERSTITIAL COMPOUND AND DIFFUSE THE DISPERSED INTERSTITIAL ELEMENT INTO THE FOIL WHEREBY THE FOIL IS STRENGTHENED AND HEATING THE COATED FOIL TO DIFFUSE THE SECOND METAL INTO THE SURFACE OF THE FOIL TO FORM A DIFFUSION LAYER OF SUPERCONDUCTIVE ALLOY HAVING A HIGHER CRITICAL TEMPERATURE THAN THE FIRST METAL.
Claim 3
Dependent Claim
78 words
AN IMPROVED METHOD OF CLADDING WHEREBY INTERSTITIAL STRENGTHENING IS INTRODUCED COMPRISING THE STEPS OF FORMING A FILM OF INTERSTITIAL COMPOUND ON A FIRST METAL FOIL, CLADDING WITH A SECOND FOIL IN A MECHANICAL WORKING OPERATION WHEREBY THE INTERSTITIAL COMPOUND FILM IS DISPERSED ALONG THE FIRST METAL FOIL AND THEN HEATING THE CLAD TO DISSOCIATE THE INTERSTITIAL COMPOUND, DIFFUSE THE INTERSTITIAL ELEMENT INTO THE FIRST METAL FOIL, AND DIFFUSION BONDING THE SECOND METAL FOIL TO THE FIRST METAL FOIL.
Claim 4
Dependent Claim
78 words
AN IMPROVED METHOD OF CLADDING WHEREBY INTERSTITIAL STRENGTHENING IS INTRODUCED COMPRISING THE STEPS OF FORMING A FILM OF INTERSTITIAL COMPOUND ON A FIRST METAL FOIL, CLADDING WITH A SECOND FOIL IN A MECHANICAL WORKING OPERATION WHEREBY THE INTERSTITIAL COMPOUND FILM IS DISPERSED ALONG THE FIRST METAL FOIL AND THEN HEATING THE CLAD TO DISSOCIATE THE INTERSTITIAL COMPOUND, DIFFUSE THE INTERSTITIAL ELEMENT INTO THE FIRST METAL FOIL, AND DIFFUSION BONDING THE SECOND METAL FOIL TO THE FIRST METAL FOIL.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |