US4394533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooled cables with terminals and method of producing same
Assignee: Individual
•
Filing: 1981-06-17
•
Granted: 1983-07-19
•
Expires: 2001-06-17
Abstract
Abstract One end portion of a cable comprising a multiplicity of core wires is inserted into a cylindrically shaped electrically conductive member one end of which is flared. A band made of synthetic resin or synthetic rubber or the like is provided on the end portion of the cable, and the cylindrical electrically conductive member, except for flared portion thereof, is pressed into a rectangular shape.
Inventors
- 👤 Mitsuo Naito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:29
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/36; B23K11/362; B23K11/364; H; H01; H01R; H01R11/00; H01R11/11; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49174; Y10T29/49181; Y10T29/49185
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
149 words
A terminal in combination with an air-cooled cable employed in spot welding, said cable consisting of a plurality of non-insulated wires, said terminal comprising an electrically conductive member having first and second portions receiving an end of said cable, said first portion defining a concavity, said second portion being rectangular and extending from said first portion, said rectangular second portion having opposing first surfaces defining a height and opposing second surfaces defining a width, said width being greater than said height, said first portion forming a cone smoothly tapering into said second portion, the cable end being fixed within said rectangular portion, and a covering layer disposed between the cable and said electrically conductive member at the boundary between said first portion and said second portion, wherein the merger of said cone with said second surfaces forms a concave line facing said concavity, whereby said concavity is nearly circular.
Claim 2
Dependent Claim
149 words
A terminal in combination with an air-cooled cable employed in spot welding, said cable consisting of a plurality of non-insulated wires, said terminal comprising an electrically conductive member having first and second portions receiving an end of said cable, said first portion defining a concavity, said second portion being rectangular and extending from said first portion, said rectangular second portion having opposing first surfaces defining a height and opposing second surfaces defining a width, said width being greater than said height, said first portion forming a cone smoothly tapering into said second portion, the cable end being fixed within said rectangular portion, and a covering layer disposed between the cable and said electrically conductive member at the boundary between said first portion and said second portion, wherein the merger of said cone with said second surfaces forms a concave line facing said concavity, whereby said concavity is nearly circular.
Claim 3
Dependent Claim
27 words
The combination of claim 1 wherein said covering layer comprises a single ring of low friction material, said ring completely circumferentially covering said cable at said boundary.
Claim 4
Dependent Claim
12 words
The combination of claim 2 wherein said low friction material comprises polytetrafluoroethylene.
Claim 5
Independent Claim
137 words
A method of producing a terminal on an air-cooled cable used in spot welding, comprising the steps of: flaring one end of a cylindrical electrically conductive member into a conical configuration, a portion of the inner diameter of said conical configuration being larger than the diameter of the cable; forming a covering layer only on a selected end portion of said cable; inserting said cable end portion into said cylindrical electrically conductive member; and pressing, into a rectangular configuration, said cylindrical electrically conductive member at a portion thereof including a part of said end flared into the conical configuration, whereby said cable end portion is fixed in said electrically conductive member and wherein said cable end portion is inserted such that said selected end portion is at a boundary between said flared end and said rectangular configuration.
Claim 6
Independent Claim
137 words
A method of producing a terminal on an air-cooled cable used in spot welding, comprising the steps of: flaring one end of a cylindrical electrically conductive member into a conical configuration, a portion of the inner diameter of said conical configuration being larger than the diameter of the cable; forming a covering layer only on a selected end portion of said cable; inserting said cable end portion into said cylindrical electrically conductive member; and pressing, into a rectangular configuration, said cylindrical electrically conductive member at a portion thereof including a part of said end flared into the conical configuration, whereby said cable end portion is fixed in said electrically conductive member and wherein said cable end portion is inserted such that said selected end portion is at a boundary between said flared end and said rectangular configuration.
Claim 7
Dependent Claim
31 words
The method of claim 4 wherein said covering layer comprises a low friction material and is formed as a single ring completely circumferentially covering said selected end portion of said cable.
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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |