Patent US2612682A successfully refreshed from Google Patents.
US2612682A
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Method of cladding a copper-base metal to an aluminum core
Assignee: Reynolds Metals Co
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Filing: 1946-04-05
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Granted: 1952-10-07
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Expires: 1966-04-05
Abstract
No abstract record available.
Inventors
- 👤 Harry B Burrack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:24
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/233; B23K20/2333; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN THE CLADDING OF A COPPER-BASE METAL TO AN ALUMINUM CORE THE METHOD WHICH COMPRISES HEATING THE COPPER-BASE METAL TO A TEMPERATURE OF FROM 300* F. TO 425* F. AND ROLLING ALUMINUM FOIL THEREON WHILE HOT TO FORM A MECHANICAL BOND THEREBETWEEN, HEATING THE COPPER-BASE METAL WITH THE FOIL ATTACHED AND THE ALUMINUM CORE TO A HOT ROLLING TEMPERATURE OF AT LEAST 750* F., AND SUBJECTING THE HEATED METALS WHILE AT A TEMPERATURE WHICH FACILITATES ROLL REDUCTION THEREOF TO A ROLLING OPERATION TO EFFECT A SUBSTANTHEREOF TO A ROLLING OPERATION TO EFFECT A SUBSTANTIAL OVERALL REDUCTION, THEREBY FIRMLY BONDING THE COOPER-BASE METAL TO THE ALUMINUM.
Claim 2
Dependent Claim
105 words
IN THE CLADDING OF A COPPER-BASE METAL TO AN ALUMINUM CORE THE METHOD WHICH COMPRISES HEATING THE COPPER-BASE METAL TO A TEMPERATURE OF FROM 300* F. TO 425* F. AND ROLLING ALUMINUM FOIL THEREON WHILE HOT TO FORM A MECHANICAL BOND THEREBETWEEN, HEATING THE COPPER-BASE METAL WITH THE FOIL ATTACHED AND THE ALUMINUM CORE TO A HOT ROLLING TEMPERATURE OF AT LEAST 750* F., AND SUBJECTING THE HEATED METALS WHILE AT A TEMPERATURE WHICH FACILITATES ROLL REDUCTION THEREOF TO A ROLLING OPERATION TO EFFECT A SUBSTANTHEREOF TO A ROLLING OPERATION TO EFFECT A SUBSTANTIAL OVERALL REDUCTION, THEREBY FIRMLY BONDING THE COOPER-BASE METAL TO THE ALUMINUM.
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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) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |