US2633633A
Expired / Lapsed
US
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Brazing of austenitic ferrous metals
Assignee: Ford Motor Co
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Filing: 1946-12-28
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Granted: 1953-04-07
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Expires: 1966-12-28
Abstract
No abstract record available.
Inventors
- 👤 Harold N Bogart
- 👤 Donald C Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/19; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49298; Y10T29/49314
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE PROCESS OF BRAZING AUSTENITIC FERROUS ALLOYS WITH A COPPER BASE BRAZING METAL COMPRISING SECURING TOGETHER THE PARTS TO BE JOINED, PLACING AT OR NEAR THE JOINT A SUPPLY OF COPPER BASE BRAZING METAL, HEATING THE ASSEMBLY IN A DRY, NEUTRAL OR REDUCING ATMOSPHERE TO 1850 TO 2300 DEGREES F. AND HOLDING IN A SIMILAR PROTECTIVE ATMOSPHERE AT SUCH AN ELEVATED TEMPERATURE UNTIL SUBSTANTIALLY ALL OF THE BRAZING METAL HAS BEEN ABSORBED INTO THE AUSTENITIC METAL.
Claim 2
Dependent Claim
76 words
THE PROCESS OF BRAZING AUSTENITIC FERROUS ALLOYS WITH A COPPER BASE BRAZING METAL COMPRISING SECURING TOGETHER THE PARTS TO BE JOINED, PLACING AT OR NEAR THE JOINT A SUPPLY OF COPPER BASE BRAZING METAL, HEATING THE ASSEMBLY IN A DRY, NEUTRAL OR REDUCING ATMOSPHERE TO 1850 TO 2300 DEGREES F. AND HOLDING IN A SIMILAR PROTECTIVE ATMOSPHERE AT SUCH AN ELEVATED TEMPERATURE UNTIL SUBSTANTIALLY ALL OF THE BRAZING METAL HAS BEEN ABSORBED INTO THE AUSTENITIC METAL.
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) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |