US2809422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a composite article
Assignee: Motors Liquidation Co
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Filing: 1954-05-21
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Granted: 1957-10-15
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Expires: 1974-05-21
Abstract
No abstract record available.
Inventors
- 👤 Harold W Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:26
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/22; B23K20/227; B23K20/2275; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN A METHOD FOR MAKING COMPOSITE ARTICLES ADAPTED TO BE SUBSEQUENTLY FORMED INTO SEMICYLINDRICAL BEARINGS AND THE LIKE, THE STEPS OF; PROVIDING A STEEL BACKING MEMBER, PLATING ONE SURFACE OF SAID BACKING MEMBER WITH COPPER IN A THICKNESS OF NOT MORE THAN .00002", PROVIDING AN ALUMINUM MEMBER TO BE SUBSEQUENTLY BONDED TO SAID STRONG METAL BACKING, HEATING THE BACKING MEMBER AND THE ALUMINUM MEMBER UNDER NON-OXIDIZING CONDITIONS TO A TEMPERATURE OF BETWEEN 800*F. AND 1010*F., THEN ROLLING THE HEATED ALUMINUM MEMBER UPON THE PLATED SURFACE OF THE STEEL UNDER PRESSURES SUFFICIENT TO CAUSE THE ALUMINUM MEMBER ONLY TO BE REDUCED IN THICKNESS TO FROM 65% TO 80% ACCORDING TO THE TEMPERATURE FOR COMPLETELY DIFFUSING THE COPPER AND FOR SIMULTANEOUSLY METALLURGICALLY DIRECTLY BONDING THE ALUMINUM MEMBER COEXTENSIXELY TO THE BACKING MEMBER WHEREIN THE BOND IS FREE FROM A BRITTLE IRON-ALUMINUM INTERLAYER WITHOUT APPRECIABLY CHANGING THE THICKNESS OF THE STEEL, AND FINALLY COOLING THE COMPOSITE ARTICLE SO FORMED.
Claim 2
Dependent Claim
156 words
IN A METHOD FOR MAKING COMPOSITE ARTICLES ADAPTED TO BE SUBSEQUENTLY FORMED INTO SEMICYLINDRICAL BEARINGS AND THE LIKE, THE STEPS OF; PROVIDING A STEEL BACKING MEMBER, PLATING ONE SURFACE OF SAID BACKING MEMBER WITH COPPER IN A THICKNESS OF NOT MORE THAN .00002", PROVIDING AN ALUMINUM MEMBER TO BE SUBSEQUENTLY BONDED TO SAID STRONG METAL BACKING, HEATING THE BACKING MEMBER AND THE ALUMINUM MEMBER UNDER NON-OXIDIZING CONDITIONS TO A TEMPERATURE OF BETWEEN 800*F. AND 1010*F., THEN ROLLING THE HEATED ALUMINUM MEMBER UPON THE PLATED SURFACE OF THE STEEL UNDER PRESSURES SUFFICIENT TO CAUSE THE ALUMINUM MEMBER ONLY TO BE REDUCED IN THICKNESS TO FROM 65% TO 80% ACCORDING TO THE TEMPERATURE FOR COMPLETELY DIFFUSING THE COPPER AND FOR SIMULTANEOUSLY METALLURGICALLY DIRECTLY BONDING THE ALUMINUM MEMBER COEXTENSIXELY TO THE BACKING MEMBER WHEREIN THE BOND IS FREE FROM A BRITTLE IRON-ALUMINUM INTERLAYER WITHOUT APPRECIABLY CHANGING THE THICKNESS OF THE STEEL, AND FINALLY COOLING THE COMPOSITE ARTICLE SO FORMED.
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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) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |