US3091029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing alloy application method
Assignee: North American Aviation Corp
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Filing: 1960-07-13
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Granted: 1963-05-28
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Expires: 1980-07-13
Abstract
No abstract record available.
Inventors
- 👤 Charles L Davis
- 👤 James R Blanchard
- 👤 Chester S Shira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:38
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/02; B23K35/0222; B23K35/0244; B23K35/025; B23K1/00; B23K1/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A METHOD OF BRAZING TWO ARTICLES TOGETHER, EACH HAVING A METAL-CONTAINING SURFACE AREA, THE METHOD COMPRISING THE STEPS OF SPRAYING A BRAZING COMPOSITION UPON SAID SURFACE AREA OF ONE OF SAID ARTICLES TO FORM A DEPOSIT OF A THICKNESS FROM 0.1 MIL TO ABOUT 15 MILS, SAID COMPOSITION CONSISTING ESSENTIALLY OF ONE PART BRAZING ALLOY PARTICLES OF A SIZE RANGE WHICH WILL PAS STHROUGH FROM ABOUT A 40 TO ABOUT A 200 MESH SCREEN, FROM 0 TO ABOUT 20 PARTS FLUX, AND FROM 1 TO ABOUT 20 PARTS OF A LIQUID CARRIER VEHICLE HAVING A VISCOSITY, OF SUBSTANTIALLY NOT IN EXCESS OF ABOUT 3 CENTIPOISES, SAID COMPOSITION HAVING A VISCOSITY NOT IN EXCESS OF ABOUT 3,000 CENTIPOISES AND SAID PARTICLES BEING SETTLEABLE IN SAD COMPOSITION, SAID SPRAYING STEP BEING EFFECTED WITH A FORCE SUFFICIENT TO CAUSE AT LEAST A PORTION OF SAID ALLOY PARTICLES TO CONTACT SAID ONE ARTICLE; HEATING SAID DEPOSIT TO A TEMPERATURE SUFFICIENT TO MELT SAID PARTICLES, THEREBY FORMING A FILM OF BRAZING ALLOY; AD CONTACTING THE OTHER OF SAID ARTICLES WITH SAID FILM TO BRAZE SAID ARTICLE TOGETHER.
Claim 2
Independent Claim
182 words
A METHOD OF BRAZING TWO ARTICLES TOGETHER, EACH HAVING A METAL-CONTAINING SURFACE AREA, THE METHOD COMPRISING THE STEPS OF SPRAYING A BRAZING COMPOSITION UPON SAID SURFACE AREA OF ONE OF SAID ARTICLES TO FORM A DEPOSIT OF A THICKNESS FROM 0.1 MIL TO ABOUT 15 MILS, SAID COMPOSITION CONSISTING ESSENTIALLY OF ONE PART BRAZING ALLOY PARTICLES OF A SIZE RANGE WHICH WILL PAS STHROUGH FROM ABOUT A 40 TO ABOUT A 200 MESH SCREEN, FROM 0 TO ABOUT 20 PARTS FLUX, AND FROM 1 TO ABOUT 20 PARTS OF A LIQUID CARRIER VEHICLE HAVING A VISCOSITY, OF SUBSTANTIALLY NOT IN EXCESS OF ABOUT 3 CENTIPOISES, SAID COMPOSITION HAVING A VISCOSITY NOT IN EXCESS OF ABOUT 3,000 CENTIPOISES AND SAID PARTICLES BEING SETTLEABLE IN SAD COMPOSITION, SAID SPRAYING STEP BEING EFFECTED WITH A FORCE SUFFICIENT TO CAUSE AT LEAST A PORTION OF SAID ALLOY PARTICLES TO CONTACT SAID ONE ARTICLE; HEATING SAID DEPOSIT TO A TEMPERATURE SUFFICIENT TO MELT SAID PARTICLES, THEREBY FORMING A FILM OF BRAZING ALLOY; AD CONTACTING THE OTHER OF SAID ARTICLES WITH SAID FILM TO BRAZE SAID ARTICLE TOGETHER.
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |