Patent US3456331A successfully refreshed from Google Patents.
US3456331A
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Method for brazing aluminum radiators
Assignee: Individual
•
Filing: 1966-11-09
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Granted: 1969-07-22
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Expires: 1986-11-09
Abstract
No abstract record available.
Inventors
- 👤 Artemas F Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:24
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/005; B23K1/008; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49393
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
THE MEDHOD OF BRAZING ALUMINUM PARTS TOGETHER AS ASSEMBLED WITH OTHER PARTS OF SUBSTANTIALLY VARYING WALL THICKNESS, SUCH AS EMPLOYED IN AN ALUMINUM AUTOMOTIVE RADIATOR ASSEMBLY, COMPRISING PRECLADDING THE ALUMINUM MATERIAL OF CERTAIN OF THE ADJACENT PARTS TO BE BRAZED WITH A SUITABLE BRAZING MATERIAL; APPLYING A SUITABLE FLUXING MATERIAL, AND SUBJECTING PARTS OF RELATIVELY LIGHTER GUAGE WALL THICKNESS TO A RADIANT HEAT SOURCE SUFFICIENT FOR BRAZING SAID ALUMINUM PARTS WHILE SUPPLYING COOLING AIR ADJACENT PARTS OF RELATIVELY HEAVY WALL THICKNESS.
Claim 2
Dependent Claim
81 words
THE MEDHOD OF BRAZING ALUMINUM PARTS TOGETHER AS ASSEMBLED WITH OTHER PARTS OF SUBSTANTIALLY VARYING WALL THICKNESS, SUCH AS EMPLOYED IN AN ALUMINUM AUTOMOTIVE RADIATOR ASSEMBLY, COMPRISING PRECLADDING THE ALUMINUM MATERIAL OF CERTAIN OF THE ADJACENT PARTS TO BE BRAZED WITH A SUITABLE BRAZING MATERIAL; APPLYING A SUITABLE FLUXING MATERIAL, AND SUBJECTING PARTS OF RELATIVELY LIGHTER GUAGE WALL THICKNESS TO A RADIANT HEAT SOURCE SUFFICIENT FOR BRAZING SAID ALUMINUM PARTS WHILE SUPPLYING COOLING AIR ADJACENT PARTS OF RELATIVELY HEAVY WALL THICKNESS.
References Cited (Backward Citations)
US2294413A
Cited
US2414312A
Cited
US3046649A
Cited
US3094775A
Cited
US3106016A
Cited
US3386152A
Cited
US3375570A
Cited
US3370343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |