US3839612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum-type circuit breaker comprising series-connected vacuum interrupters within a grounded tank
Assignee: General Electric Co
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Filing: 1973-08-08
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Granted: 1974-10-01
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Expires: 1993-08-08
Abstract
Abstract A high-voltage vacuum-type circuit breaker comprises a tubular grounded tank and a plurality of series-connected vacuum interrupters located within the tank. The interrupters are mounted in such positions that: (1) the longitudinal axes of the interrupter casings extend transversely of the central longitudinal axis of the tubular tank and (2) the movable contact rods of the interrupters project outwardly through the interrupter envelopes toward a single side of the tank. For operating the interrupters, there is provided a linkage extending between the interrupters adjacent the ends of the envelopes through which the movable contact rods extend.
Inventors
- 👤 P Badey
- 👤 J Oppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:14
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/60; H01H33/66; H01H33/666; H01H33/6661; H01H33/02; H01H33/04; H01H33/14; H01H9/00; H01H9/30; H01H9/40
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
243 words
A vacuum-type circuit breaker comprising: a. a tubular tank at substantially ground potential having a central longitudinal axis, b. a plurality of vacuum interrupters located within said tank and electrically connected in series, c. each of said vacuum interrupters comprising a highlyevacuated envelope comprising a casing of tubular form at least partially of insulating material having a central longitudinal axis, separable contacts within said envelope, and contact rods for respectively supporting said contacts, one of said contact rods being movable generally parallel to the longitudinal axis of said casing and projecting through one end of said envelope, d. means for mounting said vacuum interrupters in such positions that: (i) the longitudinal axis of the casing of each of said interrupters extends transversely of the central longitudinal axis of the tubular tank of the circuit breaker and (ii) the movable contact rods of said interrupters project through the interrupter envelopes from the interior of the envelopes toward a wall portion of said tank located at a single side of the central longitudinal axis of the tubular tank, e. and means for operating said interrupters comprising: (i) a linkage extending between said interrupters adjacent the ends of said envelopes through which said movable contact rods extend and (ii) means for coupling said linkage to said movable contact rods, said linkage comprising portions of insulating material located between the ends of said envelopes that are at different potentials when said circuit breaker is open and energized.
Claim 2
Dependent Claim
243 words
A vacuum-type circuit breaker comprising: a. a tubular tank at substantially ground potential having a central longitudinal axis, b. a plurality of vacuum interrupters located within said tank and electrically connected in series, c. each of said vacuum interrupters comprising a highlyevacuated envelope comprising a casing of tubular form at least partially of insulating material having a central longitudinal axis, separable contacts within said envelope, and contact rods for respectively supporting said contacts, one of said contact rods being movable generally parallel to the longitudinal axis of said casing and projecting through one end of said envelope, d. means for mounting said vacuum interrupters in such positions that: (i) the longitudinal axis of the casing of each of said interrupters extends transversely of the central longitudinal axis of the tubular tank of the circuit breaker and (ii) the movable contact rods of said interrupters project through the interrupter envelopes from the interior of the envelopes toward a wall portion of said tank located at a single side of the central longitudinal axis of the tubular tank, e. and means for operating said interrupters comprising: (i) a linkage extending between said interrupters adjacent the ends of said envelopes through which said movable contact rods extend and (ii) means for coupling said linkage to said movable contact rods, said linkage comprising portions of insulating material located between the ends of said envelopes that are at different potentials when said circuit breaker is open and energized.
Claim 3
Dependent Claim
21 words
The vacuum-type circuit breaker of claim 1 in which the current path through said series-connected interrupters is of a zig-zag form.
Claim 4
Dependent Claim
66 words
The vacuum-type circuit breaker of claim 1 which further comprises: a pair of space-apart high voltage bushings respectively located at opposite ends of said tubular tan and extending transversely of the central longitudinal axis of the tank, each bushing comprising a conductor for carrying current to and from said interrupters, and means for respectively electrically connecting the end ones of said interrupters to said bushing conductors.
Claim 5
Dependent Claim
18 words
The vacuum type circuit breaker of claim 1 in which said tank is filled with pressurized insulating gas.
Claim 6
Dependent Claim
61 words
The circuit breaker of claim 1 in which the mounting means for said interrupters comprises: a. a linkage housing for each pair of interrupters on which the interrupters of said pair are mounted, b. and means for mechanically interconnecting said linkage housings in spaced-apart substantially aligned relationship along an axis extending generally parallel to the central longitudinal axis of said tank.
Claim 7
Dependent Claim
30 words
The circuit breaker of claim 5 in which said means for mechanically interconnecting said linkage housings comprises tubes at least partially of insulating material respectively disposed between immediately-adjacent linkage housings.
Claim 8
Dependent Claim
21 words
The circuit breaker of claim 6 in which said insulating portions of said linkage extend through said tubes of insulating material.
Claim 9
Dependent Claim
68 words
The circuit breaker of claim 1 in which the mounting means for said interrupters comprises: a. a linkage housing for each pair of interrupters, said linkage housings being disposed in spaced-apart relationship, b. and means for mounting each pair of interrupters on its associated linkage housing in such positions that the central longitudinal axes of the casings of said pair extend in divergent relationship from said linkage housing.
Claim 10
Dependent Claim
39 words
The circuit breaker of claim 1 in which the ends of the movable contact rods of said interrupters are disposed in generally aligned relationship along an axis extending generally parallel to the central longitudinal axis of said tubular tank.
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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |