US2795040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joining metals having high temperature melting points
Assignee: Westinghouse Electric Corp
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Filing: 1953-08-20
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Granted: 1957-06-11
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Expires: 1973-08-20
Abstract
No abstract record available.
Inventors
- 👤 Damon C Antel
- 👤 Herbert E Ricks
- 👤 August P Colaiaco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:08
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/3046; B23K35/3033; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/936; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN THE PROCESS OF JOINING METAL MEMBERS HAVING A MELTING POINT GREATER THAN 1400*C., THE STEPS COMPRISING DEPOSITING FROM AN AQUEOUS SOLUTION IN A UNIFORM THIN METAL PHOSPHIDE COATING OF A METAL SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF COBALT AND NICKEL ON AT LEAST ONE OF THE MEMBERS IN THE AREA WHERE THE MEMBERS ARE TO BE JOINED, THE PHOSPHORUS COMPRISING LESS THAN 15% OF THE WEIGHT OF THE METAL PHOSPHIDE, AND HEATING THE MEMBERS AT A TEMPERATURE OF FROM 800*C. TO 1400*C. IN A PROTECTIVE ATMOSPHERE FOR A PERIOD OF TIME SUFFICIENT TO CAUSE THE COATING TO FLOW, AND WHILE THE MEMBERS ARE IN CONTACT WITH ONE ANOTHER IN THE POSITION IN WHICH THEY ARE TO BE JOINED, THE HEATING IN THE PROTECTIVE
Claim 2
Dependent Claim
128 words
IN THE PROCESS OF JOINING METAL MEMBERS HAVING A MELTING POINT GREATER THAN 1400*C., THE STEPS COMPRISING DEPOSITING FROM AN AQUEOUS SOLUTION IN A UNIFORM THIN METAL PHOSPHIDE COATING OF A METAL SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF COBALT AND NICKEL ON AT LEAST ONE OF THE MEMBERS IN THE AREA WHERE THE MEMBERS ARE TO BE JOINED, THE PHOSPHORUS COMPRISING LESS THAN 15% OF THE WEIGHT OF THE METAL PHOSPHIDE, AND HEATING THE MEMBERS AT A TEMPERATURE OF FROM 800*C. TO 1400*C. IN A PROTECTIVE ATMOSPHERE FOR A PERIOD OF TIME SUFFICIENT TO CAUSE THE COATING TO FLOW, AND WHILE THE MEMBERS ARE IN CONTACT WITH ONE ANOTHER IN THE POSITION IN WHICH THEY ARE TO BE JOINED, THE HEATING IN THE PROTECTIVE
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) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |