US2809423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salt flux and method for brazing aluminum parts therewith
Assignee: Motors Liquidation Co
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Filing: 1953-03-30
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Granted: 1957-10-15
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Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Dean K Hanink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:56
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3603
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
A METHOD OF BRAZING PARTS HAVING METALLIC SURFACES SELECTED FROM THE CLASS CONSISTING OF ALUMINUM AND ALUMINUM BASE ALLOYS WHICH COMPRISES ASSEMLBLING A THIN SHEET FORMED OF A MEMBER CONSISTING OF ALUMINUM AND ALUMINUM BASE ALLOYS BETWEEN THE SURFACES OF SAID PARTS AND, WHILE SO ASSEMBLED, IMMERSING SAID PARTS AND SHEET IN A FUSED SALT BATH MAINTAINED AT A TEMPERATURE BETWEEN 1110* F. AND 1150*F., SAID SALT BATH CONSISTING ESSENTIALLY OF, BY WEIGHT, 15% TO 20% SODIUM CHLORIDE, 20% TO 30% POTASSIUM CHLORIDE, 30% TO 48% BARIUM CHLORIDE, 8% TO 12% CRYOLITE AND 2% TO 10% ALUMINUM FLUORIDE.
References Cited (Backward Citations)
US1968984A
Cited
US2101553A
Cited
US2258681A
Cited
US2299166A
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US2327065A
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US2396604A
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US2403109A
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US2443574A
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US2417662A
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US2498199A
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US2497539A
Cited
US2544670A
Cited
US2569097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |