Patent US2613572A successfully refreshed from Google Patents.
US2763058A
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Process of producing steel-aluminum bi-metal strip
Assignee: Bohn Aluminum and Brass Corp
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Filing: 1952-01-07
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Granted: 1956-09-18
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Expires: 1972-01-07
Abstract
No abstract record available.
Inventors
- 👤 William E Mccullough
- 👤 Wilbur E Wyatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:37
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/2275; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/14; F16C2223/00; F16C2223/02; F16C2223/08; F16C2223/30; F16C2223/32; F16C2223/70; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/94; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49671; Y10T29/49673; Y10T29/49675
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE PROCESS OF PRODUCING A BI-METAL STRIP OF STEEL AND ALUMINUM ALLOY SUITABLE FOR BEING SUBSEQUENTLY FABRICATED INTO BEARINGS, SAID PROCESS COMPRISING: PLATING ONE SIDE OF A STEEL WITH A THIN LAYER OF NICKEL, MECHANICALLY CLEANING ONE SIDE OF A STRIP OF ALUMINUM ALLOY COMPRISING A SMALL AMOUNT OF A HARDENING AGENT AND A SMALL AMOUNT OF A LUBRICITY AGENT, PRE-HEATING THE TWO STRIPS IN A PROTECTIVE ATMOSPHERE SUBSTANTIALLY FREE OF MOISTURE, OXYGEN OR CARBON, BRINGING THE HEATING STRIPS TOGETHER WITH THE STRIP OF ALUMINUM ALLOY IN CONTACT WITH THE NICKELPLATED SIDE OF THE STEEL STRIP, AND BONDING THE TWO HEATED STRIPS TO EACH OTHER BY PRESSURE WHICH CAUSES A REDUCTION OF BETWEEN 33% TO 40% IN THE THICKNESS OF THE ALUMINUM STRIP.
Claim 2
Dependent Claim
123 words
THE PROCESS OF PRODUCING A BI-METAL STRIP OF STEEL AND ALUMINUM ALLOY SUITABLE FOR BEING SUBSEQUENTLY FABRICATED INTO BEARINGS, SAID PROCESS COMPRISING: PLATING ONE SIDE OF A STEEL WITH A THIN LAYER OF NICKEL, MECHANICALLY CLEANING ONE SIDE OF A STRIP OF ALUMINUM ALLOY COMPRISING A SMALL AMOUNT OF A HARDENING AGENT AND A SMALL AMOUNT OF A LUBRICITY AGENT, PRE-HEATING THE TWO STRIPS IN A PROTECTIVE ATMOSPHERE SUBSTANTIALLY FREE OF MOISTURE, OXYGEN OR CARBON, BRINGING THE HEATING STRIPS TOGETHER WITH THE STRIP OF ALUMINUM ALLOY IN CONTACT WITH THE NICKELPLATED SIDE OF THE STEEL STRIP, AND BONDING THE TWO HEATED STRIPS TO EACH OTHER BY PRESSURE WHICH CAUSES A REDUCTION OF BETWEEN 33% TO 40% IN THE THICKNESS OF THE ALUMINUM STRIP.
References Cited (Backward Citations)
US1577171A
Cited
US1667787A
Cited
US1637033A
Cited
US2197622A
Cited
US2539246A
Cited
US2490543A
Cited
US2490549A
Cited
US2539247A
Cited
US2539248A
Cited
GB628197A
Cited
US2473888A
Cited
US2629922A
Cited
US2687565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |