Patent US1877983A successfully refreshed from Google Patents.
US4456942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gapless elbow arrester
Assignee: Cooper Power Systems LLC
•
Filing: 1978-08-02
•
Granted: 1984-06-26
•
Expires: 1998-08-02
Abstract
Abstract An elastomeric insulated fully shielded arrester including one or more surge arrester blocks mounted within an elastomeric housing having a layer of conductive material on the outer surface thereof, an electrically conductive contact at each end of the arrester block, the elastomeric housing providing a compressive force for maintaining electrical communication between the electrical contacts and the block or blocks and closely engaging the outer surface of the block or blocks to minimize corona discharge.
Inventors
- 👤 Raymond J. Bronikowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:22
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/10; H01C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A high voltage gapless arrester comprising an elastomeric housing having a recess at one end, a number of arrester blocks in said recess, an electrical connector at each end of said blocks, means maintaining an axial compressive force on said blocks, electrically insulating filler means in said recess for filling discontinuities in the surfaces of the arrester blocks, means for corona grading the ends of the blocks, said corona grading means comprising a conductive tape wrapped around the junction between the surge blocks, and a conductive shield on the outside surface of said housing for connection to ground.
Claim 2
Dependent Claim
98 words
A high voltage gapless arrester comprising an elastomeric housing having a recess at one end, a number of arrester blocks in said recess, an electrical connector at each end of said blocks, means maintaining an axial compressive force on said blocks, electrically insulating filler means in said recess for filling discontinuities in the surfaces of the arrester blocks, means for corona grading the ends of the blocks, said corona grading means comprising a conductive tape wrapped around the junction between the surge blocks, and a conductive shield on the outside surface of said housing for connection to ground.
References Cited (Backward Citations)
US2050334A
Cited
US2298114A
Cited
GB1118510A
Cited
US3733521A
Cited
US4161012A
Cited
US4100588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |