US3566008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical and electrical joint between copper and aluminum members and method of making such joint
Assignee: General Electric Co
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Filing: 1969-07-15
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Granted: 1971-02-23
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Expires: 1989-07-15
Abstract
Abstract A mechanical and electrical joint is obtained between copper and aluminum members by utilizing a tin-plated copper member having a portion formed in a tubular shape with a plurality of chamfered holes made in such tubular portion. Aluminum material to be joined to the copper member is formed with a tubular end which is inserted into the tubular portion of the copper member. Heat and pressure are applied to the tubular portion of the copper member until the aluminum melts and flows out of the chamfered holes forming a strong mechanical lock with good electrical characteristics.
Inventors
- 👤 Louis F Ettlinger
- 👤 Moreland P Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/62; H01R4/625; H01R11/00; H01R11/11; H01R11/12; H01R4/10; H01R4/18; H01R4/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
33 words
A method of joining copper and aluminum as set forth in claim 1 in which said copper is a flat member and a portion of said copper is formed into a tubular shape.
Claim 2
Dependent Claim
33 words
A joint between copper and aluminum comprising a tubular copper member having chamfered holes and a tubular aluminum member secured within said tubular copper member with said aluminum extruded into said chamfered holes.
Claim 3
Dependent Claim
20 words
A joint between copper and aluminum as claimed in claim 3 in which said copper tubular member 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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |