Patent US3436804A successfully refreshed from Google Patents.
US3436804A
Expired / Lapsed
US
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Process for forming composite aluminum alloy
Assignee: Olin Corp
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Filing: 1968-04-23
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Granted: 1969-04-08
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Expires: 1988-04-23
Abstract
No abstract record available.
Inventors
- 👤 Irwin Broverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:45
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/017; C; C22; C22C; C22C21/00; C22C21/06; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/927; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE METHOD OF FORMING A COMPOSITE WHICH COMPRISES: PROVIDING A CORE MATERIAL CONTAINING FROM 2 TO 10% MAGNESIUM, BALANCE ESSENTIALLY ALUMINUM; CLEANING SAID CORE, FORMING AN ASSEMBLY BY SUPERIMPOSING THEREON A DISSIMILAR CLEANED CLADDING CONTAINING UP TO 2.5% MAGNESIUM, BALANCE ESSENTIALLY ALUMINUM; PERIPHERALLY INTEGRATING SAID ASSEMBLY BY FUSION-WELDING, LEAVING AN UNINTERGRATING PERIPHERAL PORTION IN THE POSTERIOR PORTION OF SAID ASSEMBLY; HOT ROLLING SAID ASSEMBLY AT A TEMPERATURE OF FROM 450 TO 950*F., THEREBY VENTING THE AIR AT THE INTERFACE; AND INTEGRATING SAID CORE AND CLADDING TO FORM A COMPOSITE WHEREIN THE CLADDING IS FROM 5 TO 20% OF THE THICKNESS OF THE COMPOSITE.
Claim 2
Independent Claim
103 words
THE METHOD OF FORMING A COMPOSITE WHICH COMPRISES: PROVIDING A CORE MATERIAL CONTAINING FROM 2 TO 10% MAGNESIUM, BALANCE ESSENTIALLY ALUMINUM; CLEANING SAID CORE, FORMING AN ASSEMBLY BY SUPERIMPOSING THEREON A DISSIMILAR CLEANED CLADDING CONTAINING UP TO 2.5% MAGNESIUM, BALANCE ESSENTIALLY ALUMINUM; PERIPHERALLY INTEGRATING SAID ASSEMBLY BY FUSION-WELDING, LEAVING AN UNINTERGRATING PERIPHERAL PORTION IN THE POSTERIOR PORTION OF SAID ASSEMBLY; HOT ROLLING SAID ASSEMBLY AT A TEMPERATURE OF FROM 450 TO 950*F., THEREBY VENTING THE AIR AT THE INTERFACE; AND INTEGRATING SAID CORE AND CLADDING TO FORM A COMPOSITE WHEREIN THE CLADDING IS FROM 5 TO 20% OF THE THICKNESS OF THE COMPOSITE.
References Cited (Backward Citations)
CA618129A
Cited
US2468206A
Cited
US2937435A
Cited
US3001059A
Cited
US3150445A
Cited
US3228103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |