Patent US4319073A successfully refreshed from Google Patents.
US4319073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-on end termination for shielded power cable conductors of sector-shaped conductor cross section
Assignee: Siemens AG
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Filing: 1980-01-16
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Granted: 1982-03-09
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Expires: 2000-01-16
Abstract
Abstract In order to be able to use a push on termination as an end termination in power cables whose conductors consist of a wire of sector-shaped cross section and a conductor insulation of thermoplastic or crosslinked polyethylene, the end termination is made of silicone rubber of a Shore A hardness of 35 max with the inner bore of the push on termination considerably smaller than the perimeter of the cable conductor, and the wall thickness of the push-on termination smaller than 15 mm.
Inventors
- 👤 Klaus Kretschmer
- 👤 Peter Tuschy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:57
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/02; H02G15/06; H02G15/064; H02G15/068
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A prefabricated push-on end termination for a plastic insulated power cable conductor of sector-shaped cross section of predetermined outside circumference and having an outer conducting layer, comprising: (a) a silicone rubber insulating part which has a circular longitudinal bore and in which a deflector of electrically conducting silicone rubber is embedded, said silicone rubber insulating part being made of commercial silicone rubber having a Shore A hardness of 35 max., and preferably less than or equal to 30; (b) the circumference of the circular inside bore of the insulating part being smaller by at least 16% than the outside circumference of the cable conductor with which such termination is to be used stripped of the outer conducting layer; and (c) the wall of the insulating part being cylindrical or nearly cylindrical in the area of the deflector, and having, in said area, a wall thickness including the wall thickness of the deflector, of less than 15 mm.
Claim 2
Dependent Claim
157 words
A prefabricated push-on end termination for a plastic insulated power cable conductor of sector-shaped cross section of predetermined outside circumference and having an outer conducting layer, comprising: (a) a silicone rubber insulating part which has a circular longitudinal bore and in which a deflector of electrically conducting silicone rubber is embedded, said silicone rubber insulating part being made of commercial silicone rubber having a Shore A hardness of 35 max., and preferably less than or equal to 30; (b) the circumference of the circular inside bore of the insulating part being smaller by at least 16% than the outside circumference of the cable conductor with which such termination is to be used stripped of the outer conducting layer; and (c) the wall of the insulating part being cylindrical or nearly cylindrical in the area of the deflector, and having, in said area, a wall thickness including the wall thickness of the deflector, of less than 15 mm.
Claim 3
Dependent Claim
34 words
The push-on end termination of claim 1 wherein said inside bore is smaller by 19 to 23% than the outside circumference of the stripped cable conductor with which said termination is to be used.
Claim 4
Dependent Claim
26 words
The push-on end termination of claim 1 or 2 wherein the wall thickness in said area of the deflector is at most equal to 10 mm.
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) | 1985-03-08 | 1985-09-07 | 1986-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-08 | 1989-09-07 | 1990-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-08 | 1993-09-07 | 1994-03-09 | $7700.00 | Window Closed / Lapsed |