Patent US4769740A successfully refreshed from Google Patents.
US4769740A
Expired / Lapsed
US
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Pressurized gas-insulated three-phase encapsulated high-voltage circuit breaker
Assignee: BBC Brown Boveri AG Switzerland
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Filing: 1987-03-12
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Granted: 1988-09-06
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Expires: 2007-03-12
Abstract
Abstract A pressurized gas-insulated circuit breaker includes a substantially tubular encapsulating housing having ends, a plurality of circuit breaker poles in phases, at least one of which is disposed in the encapsulating housing, and current feed lines. Each line leading to a respective one of the circuit breaker poles. Current discharge lines each lead from a respective one of the circuit breaker poles. The current feed and discharge lines to and from each respective circuit breaker pole being disposed at the same one of the ends of the encapsulating housing. Supplemental conductors are each disposed in the encapsulating housing and are each extending parallel to and forming a U-shape with a respective one of the circuit breaker poles.
Inventors
- 👤 Wolfgang Wagenbach
- 👤 Heinrich Neumaier
- 👤 Heinrich Probst
- 👤 Theo Peitz
- 👤 Paul Westbrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:49
CPC Classifications
H; H02; H02B; H02B13/00; H02B13/02; H02B13/035; H02B13/0352
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
Pressurized gas-insulated circuit breaker assembly, comprising a substantially tubular encapsulating housing having a bottom end and two oppositely facing top ends, a plurality of circuit breaker poles serving respective phases, at least one of said poles being disposed in said encapsulating housing, current feed lines each leading to a respective one of said circuit breaker poles, current discharge lines each leading away from a respective one of said circuit breaker poles, said current feed and discharge lines respectively leading to and away from each respective circuit breaker pole being disposed within the respective oppositely facing top ends of said encapsulating housing, said current feed and discharge lines including supplemental U-shaped conductors each being disposed in the bottom end of said encapsulating housing and each forming a leg of said U-shaped conductor and connected to a respective one of said circuit breaker poles.
Claim 2
Dependent Claim
142 words
Pressurized gas-insulated circuit breaker assembly, comprising a substantially tubular encapsulating housing having a bottom end and two oppositely facing top ends, a plurality of circuit breaker poles serving respective phases, at least one of said poles being disposed in said encapsulating housing, current feed lines each leading to a respective one of said circuit breaker poles, current discharge lines each leading away from a respective one of said circuit breaker poles, said current feed and discharge lines respectively leading to and away from each respective circuit breaker pole being disposed within the respective oppositely facing top ends of said encapsulating housing, said current feed and discharge lines including supplemental U-shaped conductors each being disposed in the bottom end of said encapsulating housing and each forming a leg of said U-shaped conductor and connected to a respective one of said circuit breaker poles.
Claim 3
Dependent Claim
17 words
Circuit breaker assembly according to claim 1, wherein said encapsulating housing is insulated with SF 6 gas.
Claim 4
Dependent Claim
18 words
Circuit breaker assembly according to claim 1, wherein said encapsulating housing is metal for high and medium voltages.
Claim 5
Dependent Claim
18 words
Circuit breaker assembly according to claim 1, wherein said breaker poles are disposed at corners of a triangle.
Claim 6
Dependent Claim
24 words
Circuit breaker assembly according to claim 2, wherein said current feed and discharge lines for each circuit breaker pole lie in one common plane.
Claim 7
Dependent Claim
22 words
Circuit breaker assembly according to claim 1, wherein said encapsulating housing has respective feed and discharge points disposed in said top ends.
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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) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |