Patent US3728781A successfully refreshed from Google Patents.
US3728781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a stranded wire assembly by friction welding
Assignee: Production Technology Inc
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Filing: 1971-04-26
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Granted: 1973-04-24
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Expires: 1991-04-26
Abstract
Abstract A method for producing a stranded wire assembly whereby a connector member is metallurgically bonded to the end of a stranded wire cable. The wire cable is inserted into one end of a hollow sleeve member until the end of the cable is flush with the opposite end of the sleeve. The sleeve is then mechanically fastened to the cable and the coplanar surface of cable and sleeve is friction welded to the connector.
Inventors
- 👤 R Curtis
- 👤 G English
- 👤 J Hense
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:00
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/02; H01R4/029; B; B23; B23K; B23K20/00; B23K20/12; B23K20/129; H01R43/00; H01R43/02; H01R4/023
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
181 words
A method of joining a stranded wire cable to a connector comprising the steps of: providing a hollow circular sleeve member containing a first and second end and forming in the sleeve a slot traversing the axial length of the sleeve, inserting the wire into the first end of the sleeve until the end surface of the wire is flush with the second end of the sleeve to form a coplanar surface, restraining radial outward movement of the ends of the strands by applying a radially inward compressive force to the circumferential surface of the sleeve to reduce the circumferential dimension of the sleeve and thereby mechanically fasten the wire within the sleeve, said compressive force being applied to a holding device forming a portion of a friction welding machine, and relatively rotating and engaging the connector and the reduced end of the sleeve together, applying an axial load while in rotating rubbing contact to heat the engaged connector, sleeve, and wire to a plastic state to friction weld the coplanar surface of the sleeve and the wire to the connector.
Claim 2
Independent Claim
181 words
A method of joining a stranded wire cable to a connector comprising the steps of: providing a hollow circular sleeve member containing a first and second end and forming in the sleeve a slot traversing the axial length of the sleeve, inserting the wire into the first end of the sleeve until the end surface of the wire is flush with the second end of the sleeve to form a coplanar surface, restraining radial outward movement of the ends of the strands by applying a radially inward compressive force to the circumferential surface of the sleeve to reduce the circumferential dimension of the sleeve and thereby mechanically fasten the wire within the sleeve, said compressive force being applied to a holding device forming a portion of a friction welding machine, and relatively rotating and engaging the connector and the reduced end of the sleeve together, applying an axial load while in rotating rubbing contact to heat the engaged connector, sleeve, and wire to a plastic state to friction weld the coplanar surface of the sleeve and the wire to the connector.
Claim 3
Dependent Claim
29 words
A method as set forth in claim 1 wherein said friction welding is of the inertia type in which the energy required for welding is stored in rotating flywheels.
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |