Patent US3485316A successfully refreshed from Google Patents.
Patent US3587972A successfully refreshed from Google Patents.
Patent US2987814A successfully refreshed from Google Patents.
US2987814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and product of zinc and aluminum lamination
Assignee: Reynolds Metals Co
•
Filing: 1957-01-25
•
Granted: 1961-06-13
•
Expires: 1977-01-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Ogle R Singleton
- 👤 George E Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:28
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/04; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/12771; Y10T428/12785; Y10T428/12792
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
113 words
THE METHOD OF CLADDING ZINC TO AN ALUMINUM CORE WHICH COMPRISES HEATING A ZINC PLATE IN CONTACT WITH AN ALUMINUM INGOT TO A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 650*F. TO ABOUT 750*F., LIGHTLY ROLLING THE HEATED COMPOSITE TO ADHERE THE ZINC PLATE TO THE ALUMINUM INGOT, AND THEN HOT ROLLING THE ADHERED COMPOSITE UNDER PRESSURE TO REDUCE THE THICKNESS OF THE COMPOSITE AND TO BOND THE ZINC PLATE TO THE ALUMINUM INGOT, SAID ZINC PLATE CONTAINING NOT MORE THAN A MINOR PROPORTION BY WEIGHT OF ALLOYING METALS HAVING A MELTING POINT HIGHER THAN ZINC, LESS THAN ABOUT 1% OF METALS HAVING A MELTING POINT LOWER THAN ZINC, THE BALANCE BEING ZINC.
Claim 2
Independent Claim
113 words
THE METHOD OF CLADDING ZINC TO AN ALUMINUM CORE WHICH COMPRISES HEATING A ZINC PLATE IN CONTACT WITH AN ALUMINUM INGOT TO A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 650*F. TO ABOUT 750*F., LIGHTLY ROLLING THE HEATED COMPOSITE TO ADHERE THE ZINC PLATE TO THE ALUMINUM INGOT, AND THEN HOT ROLLING THE ADHERED COMPOSITE UNDER PRESSURE TO REDUCE THE THICKNESS OF THE COMPOSITE AND TO BOND THE ZINC PLATE TO THE ALUMINUM INGOT, SAID ZINC PLATE CONTAINING NOT MORE THAN A MINOR PROPORTION BY WEIGHT OF ALLOYING METALS HAVING A MELTING POINT HIGHER THAN ZINC, LESS THAN ABOUT 1% OF METALS HAVING A MELTING POINT LOWER THAN ZINC, THE BALANCE BEING ZINC.
Claim 3
Dependent Claim
12 words
A ZINC CLAD ALUMINUM ARTICLE PRODUCED BY THE METHOD OF CLAIM 1.
References Cited (Backward Citations)
US2707323A
Cited
US1554097A
Cited
US2100256A
Cited
US2151302A
Cited
US2454312A
Cited
US2443870A
Cited
GB637945A
Cited
US2753623A
Cited
US2746134A
Cited
US2850798A
Cited
US2879587A
Cited
GB762817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |