Patent US3769685A successfully refreshed from Google Patents.
US3769685A
Expired / Lapsed
US
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Method of clamping steel core aluminum stranded wires
Assignee: Sanwa Tekki Corp
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Filing: 1971-10-05
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Granted: 1973-11-06
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Expires: 1991-10-05
Abstract
Abstract A method of clamping steel core aluminum stranded wires by inserting a steel core wire into a steel core wire inserting hole in a steel sleeve provided with a plurality of axial slits on the outer wall of the steel core wire inserting hole and having a through screw hole directed to the axis near the base of the slits, screwing a push screw to be screwed into the above mentioned screw hole to press the steel core wire with the tip so that the head of the screw may be hidden in the screw hole, inserting this steel sleeve into a cylindrical part of an aluminum sleeve into which it can be inserted with a slight clearance and compressing the aluminum sleeve on the outer periphery.
Inventors
- 👤 H Noda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:39
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/58; H01R4/62; B; B23; B23P; B23P11/00; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/398; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T29/49886; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T29/49947; Y10T29/49948; Y10T29/49954; Y10T403/00; Y10T403/49; Y10T403/57; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2045
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
A method of clamping steel core aluminum stranded wires by inserting a steel core wire into a steel core wire inserting hole in a steel sleeve provided with a plurality of axial slits on the outer wall of the steel sleeve defining the core wire inserting hole and having a through screw hole directed toward the axis near the base of the slits; screwing a push screw into said screw hole to press the steel core wire at its tip; then inserting said steel sleeve into a cylindrical hole in an aluminum sleeve into which it can be inserted with a slight clearance; and compressing the aluminum sleeve at the outer periphery.
Claim 2
Independent Claim
112 words
A method of clamping steel core aluminum stranded wires by inserting a steel core wire into a steel core wire inserting hole in a steel sleeve provided with a plurality of axial slits on the outer wall of the steel sleeve defining the core wire inserting hole and having a through screw hole directed toward the axis near the base of the slits; screwing a push screw into said screw hole to press the steel core wire at its tip; then inserting said steel sleeve into a cylindrical hole in an aluminum sleeve into which it can be inserted with a slight clearance; and compressing the aluminum sleeve at the outer periphery.
Claim 3
Dependent Claim
43 words
The method as claimed in claim 1 including the further steps of screwing said push screw in as far as it will go and if the head is protruding from the contour of the steel sleeve, then removing at least that protruding portion.
Claim 4
Dependent Claim
31 words
The method as claimed in claim 1 including the further step of coating the steel core wire inserting hole with abrasive particles before inserting the steel core wire into said hole.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |