US3781513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fusion braid weld
Assignee: General Electric Co
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Filing: 1973-01-02
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Granted: 1973-12-25
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Expires: 1993-01-02
Abstract
Abstract Means for joining braided copper leads or terminals to aluminum bus bars or tap straps. The means provides for clamping the braided copper member to the aluminum, preferably by means of a copper heat sink. Then the edges or overlapped areas of the copper and aluminum are fusion welded by a gas metal arc welding process with automatic aluminum wire feed. In a modified version a copper alloy wire is hand fed to the joint together with the aluminum filler wire from the welding gun.
Inventors
- 👤 M Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:57
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/0026; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/286; B23K9/23; B23K9/232
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
A method of joining a copper braid to an aluminum member comprising the steps of; a. providing a copper braided member, b. providing an aluminum member, c. placing a portion of said copper braided member in overlapped relation with said aluminum member, d. applying pressure to hold said members in contact with each other, e. using a gas metal arc welding gun with an automatic feed of aluminum wire to form a fusion weld along the overlapped edges of said copper braided member and said aluminum member.
Claim 2
Independent Claim
87 words
A method of joining a copper braid to an aluminum member comprising the steps of; a. providing a copper braided member, b. providing an aluminum member, c. placing a portion of said copper braided member in overlapped relation with said aluminum member, d. applying pressure to hold said members in contact with each other, e. using a gas metal arc welding gun with an automatic feed of aluminum wire to form a fusion weld along the overlapped edges of said copper braided member and said aluminum member.
Claim 3
Dependent Claim
48 words
A method of joining a copper braid to an aluminum member as set forth in claim 1, in which an aluminum clamping plate is placed over said copper braided member to form a sandwich with said copper braided member between said aluminum member and said aluminum clamping plate.
Claim 4
Dependent Claim
34 words
A method of joining a copper braid to an aluminum member as set forth in claim 1, in which a copper alloy wire is hand fed to the weld joint along said overlapped edges.
Claim 5
Dependent Claim
26 words
A method of joining a copper braid to an aluminum member as set forth in claim 1, in which said copper braided member is tin plated.
Claim 6
Dependent Claim
34 words
A welded joint between a copper braided member and an aluminum member in which overlapped edges of the members are joined by a fusion weld formed of an alloy of copper, tin, and aluminum.
Claim 7
Dependent Claim
34 words
A welded joint between a copper braided member and an aluminum member in which overlapped edges of the members are joined by a fusion weld formed of an alloy of copper, tin, and aluminum.
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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |