Patent US7276807B2 successfully refreshed from Google Patents.
US3801726A
Expired / Lapsed
US
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Snow-resistant conductor
Assignee: Furukawa Electric Co Ltd
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Filing: 1972-02-07
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Granted: 1974-04-02
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Expires: 1992-02-07
Abstract
Abstract A snow-resistant conductor consists of protruding lines formed on the outer periphery of a conductor, the conductor is formed of a number of stranded round component wires and the protruding lines are formed in such a manner as to cross the component wires in the outermost layer of the conductor.
Inventors
- 👤 M Kurihara
- 👤 A Takebayasi
- 👤 K Goto
- 👤 J Katoh
- 👤 T Minyu
- 👤 N Higuchi
- 👤 R Kimata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:14
CPC Classifications
H; H02; H02G; H02G7/00; H02G7/16; Y; Y10; Y10S; Y10S174/00; Y10S174/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
195 words
A snow-resistant conductor consisting of a core of twisted stranded round conductor component wires with the wires on the periphery of the core extending in a helical path about the axis of the core, and ring-shaped members extending perpendicularly of the axis of the core and positioned about and completely enclosing and in contact with its periphery, said ring-shaped members extending radially outwardly from the periphery of said core and forming protruding lines on the periphery of said core so that the protruding lines cross the helically wound component wires on the periphery for preventing the formation of a tubular layer of snow on the periphery of said conductor, said ringshaped members grip said core and are secured against axial displacement, said ring-shaped members having a round surface in contact with the periphery of said core and the radial dimension of said ring-shaped members being in the range of 0.5 to 5.0 mm and being considerably smaller than the diameter of said core, and said ring-shaped members are spaced apart in the axial direction of said core at intervals not greater than one pitch length of said component wires on the periphery of said core.
Claim 2
Dependent Claim
195 words
A snow-resistant conductor consisting of a core of twisted stranded round conductor component wires with the wires on the periphery of the core extending in a helical path about the axis of the core, and ring-shaped members extending perpendicularly of the axis of the core and positioned about and completely enclosing and in contact with its periphery, said ring-shaped members extending radially outwardly from the periphery of said core and forming protruding lines on the periphery of said core so that the protruding lines cross the helically wound component wires on the periphery for preventing the formation of a tubular layer of snow on the periphery of said conductor, said ringshaped members grip said core and are secured against axial displacement, said ring-shaped members having a round surface in contact with the periphery of said core and the radial dimension of said ring-shaped members being in the range of 0.5 to 5.0 mm and being considerably smaller than the diameter of said core, and said ring-shaped members are spaced apart in the axial direction of said core at intervals not greater than one pitch length of said component wires on the periphery of said core.
Claim 3
Dependent Claim
41 words
A snow-resistant conductor, as set forth in claim 1, wherein said ring-shaped members are formed of a springy material and prior to being placed on said core have an inside diameter which is less than the outside diameter of said core.
Claim 4
Dependent Claim
61 words
A snow-resistant conductor, as set forth in claim 1, wherein said ring-shaped members are formed of a tape wound on said core to a thickness in the range of 0.5 to 5.0 mm so that said ring-shaped member grips or clamps said core, and said tape having a width of about 1 cm measured in the axial direction of said core.
Claim 5
Dependent Claim
41 words
A snow-resistant conductor, as set forth in claim 1, wherein said ring-shaped members are formed of a rubber-like plastic having an inside diameter slightly smaller than the outside diameter of said core so that said ring-shaped member grips said core tightly.
Claim 6
Dependent Claim
144 words
A snow-resistant conductor comprising a core of twisted stranded round component wires with the wires on the periphery of the core extending in a helical path about the axis of the core, and a lattice member wrapped about and encircling the periphery of said core, said lattice member comprising a plurality of warp straps extending transversely of the axis of the core and a plurality of filling straps extending in the axial direction of the core, said warp straps and filling straps being interconnected, and means securing a pair of adjacent filling straps together for securing at least one said lattice into a ring-sHaped member encircling said core so that said warp straps and filling straps extend across the helically wound component wires on the periphery of the core for preventing the formation of a tubular snow layer on the periphery of the conductor.
Claim 7
Dependent Claim
144 words
A snow-resistant conductor comprising a core of twisted stranded round component wires with the wires on the periphery of the core extending in a helical path about the axis of the core, and a lattice member wrapped about and encircling the periphery of said core, said lattice member comprising a plurality of warp straps extending transversely of the axis of the core and a plurality of filling straps extending in the axial direction of the core, said warp straps and filling straps being interconnected, and means securing a pair of adjacent filling straps together for securing at least one said lattice into a ring-sHaped member encircling said core so that said warp straps and filling straps extend across the helically wound component wires on the periphery of the core for preventing the formation of a tubular snow layer on the periphery of the conductor.
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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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |