Patent US3934784A successfully refreshed from Google Patents.
US3934784A
Expired / Lapsed
US
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Method for interjoining stranded wire cable ends
Assignee: Industrial Research and Development Corp
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Filing: 1975-05-27
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Granted: 1976-01-27
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Expires: 1995-05-27
Abstract
Abstract A combined thermal welding and cold upsetting method for interjoining opposing ends of stranded wire conductor cables in which the individual strands of each cable end are first metallurgically bonded to an intervening solid metal junction member which is then mechanically upset, cold worked and partially removed to provide a relatively thin joint or interface section of solid metal extending between and interjoining the multiple cable strands; the junction section having the circumferential configuration and cross-sectional area of the parent cables and selectively regulated strength properties.
Inventors
- 👤 Alfred H. Tessmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:03
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/02; B; B23; B23K; B23K23/00; H01R4/00; H01R4/02; H01R4/029; Y; Y10; Y10S; Y10S228/00; Y10S228/904; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49194; Y10T29/49195; Y10T29/49199
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
61 words
A method of interjoining the ends of multiple strand wire cables comprising the steps of: metallurgically bonding a solid section of like metal coaxially to and between opposing end portions of the cables, and upsetting and removing a substantial portion of said section to effect a solid metal joint between said end portions having substantially the circumferential configuration of the cables.
Claim 2
Independent Claim
61 words
A method of interjoining the ends of multiple strand wire cables comprising the steps of: metallurgically bonding a solid section of like metal coaxially to and between opposing end portions of the cables, and upsetting and removing a substantial portion of said section to effect a solid metal joint between said end portions having substantially the circumferential configuration of the cables.
Claim 3
Dependent Claim
26 words
The method of claim 1 wherein the upsetting of said section is selectively regulated to produce a finished joint between the cables of preselected tensile strength.
Claim 4
Dependent Claim
24 words
The method of claim 1, wherein said end portions of the cable are radially confined throughout the upsetting and removing of said substantial portion.
Claim 5
Independent Claim
117 words
A method of interjoining the ends of multiple strand electrical conductor cables comprising the steps of: thermally bonding a solid section of like metal to and between the ends of the cables, radially confining substantial axial end portions of the cables including the axial adjacent junctions thereof with said section, simultaneously axially and radially upsetting and forming a substantial portion of said section between said confined end portions and cold working the remainder thereof and the axially adjacent confined portions of said cables to produce a finish joint between the cables having the circumferential configuration and cross-sectional area of said cables and selected tensile strength, and removing the upset material of said section to finish said joint.
Claim 6
Independent Claim
117 words
A method of interjoining the ends of multiple strand electrical conductor cables comprising the steps of: thermally bonding a solid section of like metal to and between the ends of the cables, radially confining substantial axial end portions of the cables including the axial adjacent junctions thereof with said section, simultaneously axially and radially upsetting and forming a substantial portion of said section between said confined end portions and cold working the remainder thereof and the axially adjacent confined portions of said cables to produce a finish joint between the cables having the circumferential configuration and cross-sectional area of said cables and selected tensile strength, and removing the upset material of said section to finish said joint.
Claim 7
Independent Claim
104 words
A method of interjoining the ends of multiple strand electrical conductor cables comprising the steps of: thermally bonding a section of like solid metal coaxially to one end of each of the cables to be joined, thermally inter-bonding said sections, upsetting and removing the heat affected material of said inter-bonded sections while simultaneously forming the exterior thereof to the circumferential configuration of said cables, and selectively cold working the remainder of said sections and adjacent thermally affected material at said cable ends sufficiently to produce a solid metal junction therebetween having the strength and properties of soft drawn to medium hard drawn conductor cable.
Claim 8
Independent Claim
104 words
A method of interjoining the ends of multiple strand electrical conductor cables comprising the steps of: thermally bonding a section of like solid metal coaxially to one end of each of the cables to be joined, thermally inter-bonding said sections, upsetting and removing the heat affected material of said inter-bonded sections while simultaneously forming the exterior thereof to the circumferential configuration of said cables, and selectively cold working the remainder of said sections and adjacent thermally affected material at said cable ends sufficiently to produce a solid metal junction therebetween having the strength and properties of soft drawn to medium hard drawn conductor cable.
Claim 9
Dependent Claim
23 words
The method of claim 5, wherein said thermal bonding of a said section to said cable end is conducted in a non-oxidizing atmosphere.
Claim 10
Dependent Claim
40 words
The method of claim 5, wherein each said section is amorphously shaped after bonding with a cable end, and is thereafter formed to substantially the circumferential shape of its associated cable end prior to the thermal inter-bonding of said sections.
Claim 11
Dependent Claim
26 words
The method of claim 5, wherein the cables are aluminum, and the tensile strength of said junction is within the range of 11,000 to 15,000 p.s.i.
Claim 12
Dependent Claim
18 words
The method of claim 5, wherein the thermal inter-bonding of said sections is accomplished by electrical butt welding.
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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |