Patent US4808130A successfully refreshed from Google Patents.
Patent US3659033A successfully refreshed from Google Patents.
US3659033A
Expired / Lapsed
US
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Electrical bushing having adjacent capacitor sections separated by axially continuous conductive layers, and including a cooling duct
Assignee: Westinghouse Electric Corp
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Filing: 1970-10-28
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Granted: 1972-04-25
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Expires: 1990-10-28
Abstract
Abstract A condenser bushing including a conductor, electrical insulation disposed about the conductor, and a plurality of radially spaced cylindrical layers of electrically conductive material disposed in the electrical insulation. The cylindrical layers of electrically conductive material are arranged to provide at least first and second concentric radially adjacent condenser systems, with at least one of the systems being of the split or axially divided type. The first and second condenser systems are separated by a continuous electrically conductive layer, not structurally related to either adjacent system, but which functions as the outermost layer of the first condenser system, and the innermost layer of the second condenser system, to connect the two systems in series.
Inventors
- 👤 Elmer J Grimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:01
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
104 words
An electrical condenser bushing, comprising an axially extending electrical conductor, a plurality of concentric, radially adjacent condenser systems disposed about said electrical conductor, at least one axially continuous layer of electrically conductive material disposed between at least two radially adjacent condenser systems, which layer is structurally independent from either adjacent system, and which functions to serially interconnect the adjacent condenser systems, and at least one cooling duct disposed between two adjacent condenser systems, with the at least one axially continuous layer disposed adjacent to one side of the duct, and including another axially continuous layer disposed adjacent to the other side of said duct.
Claim 2
Dependent Claim
104 words
An electrical condenser bushing, comprising an axially extending electrical conductor, a plurality of concentric, radially adjacent condenser systems disposed about said electrical conductor, at least one axially continuous layer of electrically conductive material disposed between at least two radially adjacent condenser systems, which layer is structurally independent from either adjacent system, and which functions to serially interconnect the adjacent condenser systems, and at least one cooling duct disposed between two adjacent condenser systems, with the at least one axially continuous layer disposed adjacent to one side of the duct, and including another axially continuous layer disposed adjacent to the other side of said duct.
Claim 3
Dependent Claim
114 words
An electrical condenser bushing, comprising: an axially extending electrical conductor, electrical insulating means disposed about said conductor, a plurality of radially spaced, axially discontinuous layers of electrically conductive material disposed in said insulating means, about said conductor, a plurality of axially continuous layers of electrically conductive material, including a continuous layer disposed about the outermost axially discontinuous layer, and at least one continuous layer disposed intermediate the axially discontinuous layers, to divide the axially discontinuous layers into a plurality of radially disposed groups, and at least one cooling duct disposed in the insulating means, with axially continuous layers disposed immediately adjacent to the inner and outer sides of the at least one cooling duct.
Claim 4
Dependent Claim
114 words
An electrical condenser bushing, comprising: an axially extending electrical conductor, electrical insulating means disposed about said conductor, a plurality of radially spaced, axially discontinuous layers of electrically conductive material disposed in said insulating means, about said conductor, a plurality of axially continuous layers of electrically conductive material, including a continuous layer disposed about the outermost axially discontinuous layer, and at least one continuous layer disposed intermediate the axially discontinuous layers, to divide the axially discontinuous layers into a plurality of radially disposed groups, and at least one cooling duct disposed in the insulating means, with axially continuous layers disposed immediately adjacent to the inner and outer sides of the at least one cooling duct.
Claim 5
Dependent Claim
100 words
An electrical condenser bushing, comprising: an axially extending electrical conductor, electrical insulating means disposed about said conductor, a plurality of radially spaced, axially discontinuous layers of electrically conductive material disposed in said insulating means, about said conductor, a plurality of axially continuous layers of electrically conductive material, including a continuous layer disposed about the outermost axially discontinuous layer, and at least one continuous layer disposed intermediate the axially discontinuous layers, to divide the axially discontinuous layers into a plurality of radially disposed groups, a cooling duct disposed adjacent to the conductor, and a continuous layer disposed about said cooling duct.
Claim 6
Dependent Claim
100 words
An electrical condenser bushing, comprising: an axially extending electrical conductor, electrical insulating means disposed about said conductor, a plurality of radially spaced, axially discontinuous layers of electrically conductive material disposed in said insulating means, about said conductor, a plurality of axially continuous layers of electrically conductive material, including a continuous layer disposed about the outermost axially discontinuous layer, and at least one continuous layer disposed intermediate the axially discontinuous layers, to divide the axially discontinuous layers into a plurality of radially disposed groups, a cooling duct disposed adjacent to the conductor, and a continuous layer disposed about said cooling duct.
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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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |