US3600502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical condenser bushing having a plurality of cylindrical, interleaved, ground and tap layers
Assignee: Westinghouse Electric Corp
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Filing: 1969-11-26
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Granted: 1971-08-17
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Expires: 1989-11-26
Abstract
Abstract A condenser bushing including a conductor stud, insulating means disposed about the stud, and a plurality of radially spaced cylindrical layers of electrically conductive material disposed in the insulating means. The layers of electrically conductive material include interleaved ground and tap layers, to increase the total capacitance between tap and ground layers, and a voltage terminal connected to the tap layers.
Inventors
- 👤 Loren B Wagenaar
- 👤 Elmer J Grimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:31
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/26; H01B17/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
117 words
An electrical condenser bushing, comprising: an axially extending conductor stud, solid insulating means disposed about said conductor stud, radially spaced, substantially cylindrical layers of electrically conductive material disposed in said solid insulating means about, and coaxial with, said conductor stud, including a tap layer and a plurality of layers disposed outside said tap layer, means electrically connecting said tap layer to certain of the layers disposed outside said tap layer, and means electrically interconnecting the layers outside said tap layer which are not connected to the tap layer, with these layers being adapted for connection to ground, at least certain of the layers connected to said tap layer being interleaved by layers adapted for connection to ground.
Claim 2
Dependent Claim
117 words
An electrical condenser bushing, comprising: an axially extending conductor stud, solid insulating means disposed about said conductor stud, radially spaced, substantially cylindrical layers of electrically conductive material disposed in said solid insulating means about, and coaxial with, said conductor stud, including a tap layer and a plurality of layers disposed outside said tap layer, means electrically connecting said tap layer to certain of the layers disposed outside said tap layer, and means electrically interconnecting the layers outside said tap layer which are not connected to the tap layer, with these layers being adapted for connection to ground, at least certain of the layers connected to said tap layer being interleaved by layers adapted for connection to ground.
Claim 3
Dependent Claim
20 words
The electrical bushing of claim 1 including an accessible terminal, and means electrically connecting said terminal to the tap layer.
Claim 4
Dependent Claim
28 words
The electrical condenser bushing of claim 1 wherein the radially spaced layers of electrically conductive material also include layers disposed between the tap layer and the conductor stud.
Claim 5
Dependent Claim
25 words
The electrical condenser bushing of claim 3 wherein at least certain of the layers disposed between the conductor stud and tap layer are axially discontinuous.
Claim 6
Dependent Claim
27 words
The electrical condenser bushing of claim 3 wherein at least certain of the layers disposed between the conductor stud and tap layer include two axially spaced sections.
Claim 7
Dependent Claim
106 words
An electrical condenser bushing comprising: an axially extending conductor stud, solid insulating means disposed about said conductor stud, a plurality of radially spaced, substantially cylindrical, layers of electrically conductive material disposed in said solid insulating means, about, and coaxial with, said conductor stud, providing capacitor plates about said conductor stud, first means electrically interconnecting a predetermined number of alternate layers, starting With the next to the outermost layer, second means interconnecting the layers intervening those connected by said first means, and the outermost layer, said second means being adapted for construction to ground, and terminal means connected to said first means to provide a voltage tap.
Claim 8
Dependent Claim
106 words
An electrical condenser bushing comprising: an axially extending conductor stud, solid insulating means disposed about said conductor stud, a plurality of radially spaced, substantially cylindrical, layers of electrically conductive material disposed in said solid insulating means, about, and coaxial with, said conductor stud, providing capacitor plates about said conductor stud, first means electrically interconnecting a predetermined number of alternate layers, starting With the next to the outermost layer, second means interconnecting the layers intervening those connected by said first means, and the outermost layer, said second means being adapted for construction to ground, and terminal means connected to said first means to provide a voltage tap.
Claim 9
Dependent Claim
18 words
The electrical bushing of claim 6 wherein the outermost layer is part of a metallic mounting flange assembly.
Claim 10
Dependent Claim
43 words
The electrical condenser bushing of claim 6 including a plurality of layers of electrically conductive material disposed between the innermost layer connected to the terminal means and the conductor stud, said plurality of layers each being axially divided into first and second sections.
Claim 11
Dependent Claim
58 words
An electrical condenser bushing, comprising: a conductor stud, solid insulating means disposed about said conductor stud, a plurality of radially spaced, substantially cylindrical, layers of electrically conductive material disposed in said solid insulating means, about, and coaxial with said conductor stud, including a plurality of interleaved ground and tap layers, and terminal means connected to said tap layers.
Claim 12
Dependent Claim
58 words
An electrical condenser bushing, comprising: a conductor stud, solid insulating means disposed about said conductor stud, a plurality of radially spaced, substantially cylindrical, layers of electrically conductive material disposed in said solid insulating means, about, and coaxial with said conductor stud, including a plurality of interleaved ground and tap layers, and terminal means connected to said tap layers.
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |