US2790656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum-dissimilar metal joint and method of making same
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1953-03-31
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Granted: 1957-04-30
•
Expires: 1973-03-31
Abstract
No abstract record available.
Inventors
- 👤 Lloyd A Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:34
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/23; B23K9/232; B23K35/00; B23K35/001; B23K35/002; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T403/00; Y10T403/47; Y10T403/477; Y10T428/00; Y10T428/12; Y10T428/12347; Y10T428/12451; Y10T428/12493; Y10T428/12639; Y10T428/12736; Y10T428/1275; Y10T428/12764; Y10T428/12771; Y10T428/12861; Y10T428/12896
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
A JOINT BETWEEN ALUMINUM AND A METAL DISSIMILAR TO ALUMINUM WHICH IS NORMALLY INCAPABLE OF BEING FUSION BONDED TO ALUMINUM TO PRODUCE A JOINT POSSESSING LOW ELECTRICAL RESISTANCE AND HIGH MECHANICAL PROPERTIES, SAID JOINT COMPRISING AN ALUMINUM MEMBER AND A DISSIMILAR METAL MEMBER IN INTEGRAL BONDED RATION, THE BOND COMPRISING A FACING OF BUFFER METAL ON SAID DISSIMILAR METAL IN THE AREA OF THE BOND AND AT LEAST ONE ALUMINUM WELD METAL FILLET CONNECTING SAID FACING TO SAID ALUMINUM MEMBER, SAID FACING BEING IN ALLOY BOND RELATION WITH SAID DISSIMILAR METAL AND SAID WELD FILLET.
Claim 2
Dependent Claim
95 words
A JOINT BETWEEN ALUMINUM AND A METAL DISSIMILAR TO ALUMINUM WHICH IS NORMALLY INCAPABLE OF BEING FUSION BONDED TO ALUMINUM TO PRODUCE A JOINT POSSESSING LOW ELECTRICAL RESISTANCE AND HIGH MECHANICAL PROPERTIES, SAID JOINT COMPRISING AN ALUMINUM MEMBER AND A DISSIMILAR METAL MEMBER IN INTEGRAL BONDED RATION, THE BOND COMPRISING A FACING OF BUFFER METAL ON SAID DISSIMILAR METAL IN THE AREA OF THE BOND AND AT LEAST ONE ALUMINUM WELD METAL FILLET CONNECTING SAID FACING TO SAID ALUMINUM MEMBER, SAID FACING BEING IN ALLOY BOND RELATION WITH SAID DISSIMILAR METAL AND SAID WELD FILLET.
Claim 3
Independent Claim
83 words
A METHOD OF MAKING A JOINT BETWEEN AN ALUMINUM MEMBER AND A MEMBER OF A METAL DISSIMILAR TO ALUMINUM WHICH IS NORMALLY INCAPABLE OF BEING FUSION BONDED TO ALUMINUM TO PRODUCE A JOINT POSSESSING A LOW ELECTRICAL RESISTANCE AND HIGH MECHANICAL PROPERTIES, COMPRISING THE STEPS OF PROVIDING THE DISSIMILAR METAL MEMBER WITH A FACING OF BUFFER METAL THEREON IN THE AREA TO BE BONDED AN INERT GAS ARC WELDING THE BUFFER METAL FACING TO THE ALUMINUM MEMBER BY FORMING ALUMINOUS METAL WELD THEREBETWEEN.
Claim 4
Independent Claim
83 words
A METHOD OF MAKING A JOINT BETWEEN AN ALUMINUM MEMBER AND A MEMBER OF A METAL DISSIMILAR TO ALUMINUM WHICH IS NORMALLY INCAPABLE OF BEING FUSION BONDED TO ALUMINUM TO PRODUCE A JOINT POSSESSING A LOW ELECTRICAL RESISTANCE AND HIGH MECHANICAL PROPERTIES, COMPRISING THE STEPS OF PROVIDING THE DISSIMILAR METAL MEMBER WITH A FACING OF BUFFER METAL THEREON IN THE AREA TO BE BONDED AN INERT GAS ARC WELDING THE BUFFER METAL FACING TO THE ALUMINUM MEMBER BY FORMING ALUMINOUS METAL WELD THEREBETWEEN.
References Cited (Backward Citations)
US1745180A
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US1636656A
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GB577979A
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US2583163A
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US2480280A
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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) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |