Patent US3564585A successfully refreshed from Google Patents.
US3564585A
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Method for making stainless steel clad aluminum
Assignee: Composite Metal Products Inc
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Filing: 1968-08-19
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Granted: 1971-02-16
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Expires: 1988-08-19
Abstract
Abstract ALUMINUM IS CLAD WITH STAINLESS STEEL BY MECHANICALLY CLEANING THE ALUMINUM, HEATING THE METAL SURFACES, IN A HEATING ZONE, TO A TEMPERATURE ABOVE THE RECRYSTALLIZATION TEMPERATURE OF THE ALUMINUM, BRINGING THE CLEANED SURFACE ON CONTACT WITH THE STAINLESS STEEL SURFACE UNDER A PRESSURE TO EFFECT A TWO-STEP REDUCTION OF 5% TO 35% IN EACH OF THE METALS. A 0.25% TO 2.0% REDUCTION IS ACCOMPLISHED IN THE FIRST STAGE, OUTSIDE THE HEATING ZONE, WHILE THE METALS ARE ABOVE THE RECYRSTALLIZATION TEMPERATURE WITH THE REMAINDER IN THE SECOND STAGE. A DIFFUSION BOND IS FORMED AND THE BONDED METALS ARE ANNEALED AT 700*F. TO 900%F.
Inventors
- 👤 William C Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:47
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/2275; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972; Y10T428/12979
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |