Patent US3592993A successfully refreshed from Google Patents.
US3592993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining aluminum to aluminum
Assignee: General Electric Co
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Filing: 1969-07-15
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Granted: 1971-07-13
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Expires: 1989-07-15
Abstract
Abstract A welded joint having good electrical and mechanical characteristics is obtained between aluminum members by using a copper or copper alloy cloth or screen between the members to the joint. Heat and pressure are applied through resistance electrodes to melt the small wires of the screen and cause the aluminum metal to bond together.
Inventors
- 👤 Moreland P Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:32
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K35/002; B23K11/00; B23K11/16; B23K11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A method of joining aluminum members as set forth in claim 1 in which said overlap is at least 0.5 inch and said screen is smaller than said overlap.
Claim 2
Dependent Claim
18 words
A method of joining aluminum members as set forth in claim 1 in which said screen is tin-plated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |