Patent US4097686A successfully refreshed from Google Patents.
US4097686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Open-air or overhead transmission cable of high tensile strength
Assignee: Felten and Guilleaume Carlswerk AG
•
Filing: 1977-01-27
•
Granted: 1978-06-27
•
Expires: 1997-01-27
Abstract
Abstract The cable comprises a plurality of electrical conductor elements and a plurality of tensile load-bearing elements combined with the conductor elements to form the cable. The tensile-load-bearing elements are made of high-tensile strength synthetic plastic material.
Inventors
- 👤 Jurgen Gladenbeck
- 👤 Gerald Muller
- 👤 Karl Schorken
- 👤 Hans-Peter Schwindenhammer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:23
CPC Classifications
H; H01; H01B; H01B5/00; H01B5/08; H01B5/10; H01B5/102; H01B5/105; H01B13/00; H01B13/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
134 words
An uninsulated-conductor open-air or overhead transmission cable for the transmission of high-voltage electrical energy, comprising, in combination, a plurality of uninsulated electrical conductor elements; and a plurality of tensile-load-bearing elements combined with said plurality of uninsulated electrical conductor elements to form a cable, said tensile-load-bearing elements being made of high-tensile-strength aromatic homo- or copolyamide, and said uninsulated electrical conductor elements constituting the outermost elements of the uninsulated-conductor cable, said plurality of tensile-load-bearing elements being synthetic plastic yarns oriented generally straight and parallel to each other, the yarns being composed of high-tensile-strength aromatic homo- or copolyamide filaments, the cable further including a plurality of highly stretchable synthetic plastic filaments oriented generally straight and parallel to each other, the yarns and the highly stretchable synthetic plastic filaments being bound together to form a unitary core structure.
Claim 2
Dependent Claim
134 words
An uninsulated-conductor open-air or overhead transmission cable for the transmission of high-voltage electrical energy, comprising, in combination, a plurality of uninsulated electrical conductor elements; and a plurality of tensile-load-bearing elements combined with said plurality of uninsulated electrical conductor elements to form a cable, said tensile-load-bearing elements being made of high-tensile-strength aromatic homo- or copolyamide, and said uninsulated electrical conductor elements constituting the outermost elements of the uninsulated-conductor cable, said plurality of tensile-load-bearing elements being synthetic plastic yarns oriented generally straight and parallel to each other, the yarns being composed of high-tensile-strength aromatic homo- or copolyamide filaments, the cable further including a plurality of highly stretchable synthetic plastic filaments oriented generally straight and parallel to each other, the yarns and the highly stretchable synthetic plastic filaments being bound together to form a unitary core structure.
Claim 3
Dependent Claim
23 words
An uninsulated-conductor cable as defined in claim 1, wherein said highly stretchable synthetic plastic filaments have a breaking elongation between 10% and 20%.
Claim 4
Dependent Claim
23 words
An uninsulated-conductor cable as defined in claim 1, wherein said highly stretchable synthetic plastic filaments have a breaking elongation between 15% and 20%.
Claim 5
Dependent Claim
156 words
An uninsulated-conductor open-air or overhead transmission cable for the transmission of high-voltage electrical energy, comprising, in combination, a plurality of uninsulated electrical conductor elements; and a plurality of tensile-load-bearing elements combined with said plurality of uninsulated electrical conductor elements to form a cable, said tensile-load-bearing elements being made of high-tensile-strength aromatic homo- or copolyamide, and said uninsulated electrical conductor elements constituting the outermost elements of the uninsulated-conductor cable, said plurality of tensile-load-bearing elements being synthetic plastic yarns oriented generally straight and parallel to each other, the yarns being composed of high-tensile-strength aromatic homo- or copolyamide filaments, the cable further including a plurality of highly stretchable synthetic plastic filaments oriented generally straight and parallel to each other, the cable further including impregnating material impregnating the yarns and the highly stretchable synthetic plastic filaments, the impregnating material being in cured condition and elastomeric and forming together with the yarns and the highly stretchable filaments a unitary core structure.
Claim 6
Dependent Claim
156 words
An uninsulated-conductor open-air or overhead transmission cable for the transmission of high-voltage electrical energy, comprising, in combination, a plurality of uninsulated electrical conductor elements; and a plurality of tensile-load-bearing elements combined with said plurality of uninsulated electrical conductor elements to form a cable, said tensile-load-bearing elements being made of high-tensile-strength aromatic homo- or copolyamide, and said uninsulated electrical conductor elements constituting the outermost elements of the uninsulated-conductor cable, said plurality of tensile-load-bearing elements being synthetic plastic yarns oriented generally straight and parallel to each other, the yarns being composed of high-tensile-strength aromatic homo- or copolyamide filaments, the cable further including a plurality of highly stretchable synthetic plastic filaments oriented generally straight and parallel to each other, the cable further including impregnating material impregnating the yarns and the highly stretchable synthetic plastic filaments, the impregnating material being in cured condition and elastomeric and forming together with the yarns and the highly stretchable filaments a unitary core structure.
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) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |