Patent US4568794A successfully refreshed from Google Patents.
US4568794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gap type ACSR conductor with supporting structure and method of forming same
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1984-07-24
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Granted: 1986-02-04
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Expires: 2004-07-24
Abstract
Abstract An improved method for suspending a gap type steel reinforced aluminum conductor is proposed. A sleeve is mounted on the conductor and compressed so that there will be no gap between the conductive strands and the core. When compressed, grooves are formed in the outer periphery of the sleeve. Armor rods are wound around the sleeve in the grooves. The conductor is then clamped in a suspension clamp.
Inventors
- 👤 Norikatsu Kumamoto
- 👤 Hideaki Miyazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:14
CPC Classifications
H; H02; H02G; H02G7/00; H02G7/05; H02G7/053; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49801
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
102 words
A method for suspending a gap type steel reinforced aluminum conductor having aluminum conductive strands and a steel core, comprising the steps of mounting a sleeve on the conductor, mounting on said sleeve a die having its inner surface corrugated, compressing said die against said sleeve and said conductor so that there will be no gap between said aluminum conductive strands and said steel core and so that said sleeve is formed in its outer periphery with grooves for armor rods, winding armor rods around said sleeve on said conductor in said grooves, and clamping the armored conductor in a suspension clamp.
Claim 2
Independent Claim
102 words
A method for suspending a gap type steel reinforced aluminum conductor having aluminum conductive strands and a steel core, comprising the steps of mounting a sleeve on the conductor, mounting on said sleeve a die having its inner surface corrugated, compressing said die against said sleeve and said conductor so that there will be no gap between said aluminum conductive strands and said steel core and so that said sleeve is formed in its outer periphery with grooves for armor rods, winding armor rods around said sleeve on said conductor in said grooves, and clamping the armored conductor in a suspension clamp.
Claim 3
Dependent Claim
41 words
A method as claimed in claim 1, wherein the sleeve is axially split into at least two sections before mounting on the conductor, said sections being fitted together tightly and allowing the conductor to be compressed upon compression by the die.
Claim 4
Dependent Claim
106 words
A gap type steel reinforced aluminum conductor having aluminum conductive strands and a steel core and an associated supporting structure, comprising a sleeve mounted on said conductor and compressed around its circumference sufficiently so that there will be no gap between said aluminum conductive strands and said steel core in the area where said sleeve engages said conductor, said sleeve being formed in its outer periphery with a plurality of grooves formed by the compression, a plurality of armor rods wound around said sleeve in said grooves and on said conductor, and a suspension clamp clamping said conductor together with said sleeve and said armor rods.
Claim 5
Dependent Claim
106 words
A gap type steel reinforced aluminum conductor having aluminum conductive strands and a steel core and an associated supporting structure, comprising a sleeve mounted on said conductor and compressed around its circumference sufficiently so that there will be no gap between said aluminum conductive strands and said steel core in the area where said sleeve engages said conductor, said sleeve being formed in its outer periphery with a plurality of grooves formed by the compression, a plurality of armor rods wound around said sleeve in said grooves and on said conductor, and a suspension clamp clamping said conductor together with said sleeve and said armor rods.
Claim 6
Dependent Claim
28 words
The combination as claimed in claim 3, wherein said sleeve is axially split into at least two sections, said sections being fitted together tightly and compressing the conductor.
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) | 1989-02-03 | 1989-08-05 | 1990-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-03 | 1993-08-05 | 1994-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-03 | 1997-08-05 | 1998-02-04 | $7700.00 | Window Closed / Lapsed |