US3145466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diffusion bonding of metal members
Assignee: Westinghouse Electric Corp
•
Filing: 1959-11-27
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Granted: 1964-08-25
•
Expires: 1979-11-27
Abstract
No abstract record available.
Inventors
- 👤 Feduska William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:50
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K20/00; B23K20/02; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12729
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A DIFFUSION BONDING PROCESS FOR JOINING ALLOY MEMBERS INTO A STRUCTURE SUITABLE FOR USE AT ELEVATED TEMPERATURES, THE FAYING SURFACES OF THE MEMBERS TO BE JOINED BEING CLEAN AND CLOSELY CONFORMING TO EACH OTHER, THE STEPS COMPRISING PLACING A THIN SUBSTANTIALLY CONTINUOUS LAYER OF BERYLLIUM ON AT LEAST ONE OF SAID SURFACES, POSITIONING SAID MEMBERS IN POSITIVE ENGAGEMENT FOR JOINING WITH THE FAYING SURFACES IN INTIMATE FACE-TO-FACE RELATION AND THE BERYLLIUM LAYER THEREBETWEEN, AND HEATING SAID MEMBERS TO A TEMPERATURE OF AT LEAST 1,000*C. FOR A PERIOD OF AT LEAST 20 SECONDS IN VACUUM, THEREBY PROVIDING A BOND HAVING ESSENTIALLY THE COMPOSITION OF THE ALLOY MEMBERS AND CHARACTERIZED BY GRAIN GROWTH ACROSS THE INTERFACE OF THE MEMBERS.
Claim 2
Dependent Claim
117 words
A DIFFUSION BONDING PROCESS FOR JOINING ALLOY MEMBERS INTO A STRUCTURE SUITABLE FOR USE AT ELEVATED TEMPERATURES, THE FAYING SURFACES OF THE MEMBERS TO BE JOINED BEING CLEAN AND CLOSELY CONFORMING TO EACH OTHER, THE STEPS COMPRISING PLACING A THIN SUBSTANTIALLY CONTINUOUS LAYER OF BERYLLIUM ON AT LEAST ONE OF SAID SURFACES, POSITIONING SAID MEMBERS IN POSITIVE ENGAGEMENT FOR JOINING WITH THE FAYING SURFACES IN INTIMATE FACE-TO-FACE RELATION AND THE BERYLLIUM LAYER THEREBETWEEN, AND HEATING SAID MEMBERS TO A TEMPERATURE OF AT LEAST 1,000*C. FOR A PERIOD OF AT LEAST 20 SECONDS IN VACUUM, THEREBY PROVIDING A BOND HAVING ESSENTIALLY THE COMPOSITION OF THE ALLOY MEMBERS AND CHARACTERIZED BY GRAIN GROWTH ACROSS THE INTERFACE OF THE MEMBERS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |