Patent US3474025A successfully refreshed from Google Patents.
US3099733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter
Assignee: Westinghouse Electric Corp
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Filing: 1959-11-19
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Granted: 1963-07-30
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Expires: 1979-11-19
Abstract
No abstract record available.
Inventors
- 👤 James L Ridings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:30
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/53; H01H33/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A FLUID-BLAST CIRCUIT INTERRUPTER COMPRISING, IN COMBINATION, AN EXHAUST TANK, AN ELONGATED ARC-EXTINGUISHING ASSEMBLAGE SUPPORTED WITHIN SAID EXHAUST TANK, SAID ARCEXTINGUISHING ASSEMBLAGE INCLUDING A PLURALITY OF SERIALLY RELATED ARC-EXTINGUISHING UNITS, EACH OF SAID ARC-EXTINGUISHING UNITS COMPRISING ARC-SPLITTER MEANS FOR BREAKING UP AN ARC TO EFFECT EXTINCTION OF THE ARC, MEANS FOR SIMULTANEOUSLY DRAWING A PLURALITY OF SERIALLY RELATED ARCS ALONG THE ASSEMBLAGE ONE WITHIN EACH ARC-EXTINGUISHING UNIT, A SOURCE OF HIGH-PRESSURE GAS, A SEPARATE BLAST VALVE ASSOCIATED WITH EACH ARC-EXTINGUISHING UNIT AND OPERABLE TO DIRECT A BLAST OF GAS CROSSWISE TOWARD THE ARC ESTABLISHED WITHIN THAT UNIT TO FORCE THE ARC INTO THE ASSOCIATED ARC-SPLITTER MEANS, AND MEANS FOR EFFECTING SIMULTANEOUS ACTUATION OF THE BLAST VALVES.
Claim 2
Dependent Claim
116 words
A FLUID-BLAST CIRCUIT INTERRUPTER COMPRISING, IN COMBINATION, AN EXHAUST TANK, AN ELONGATED ARC-EXTINGUISHING ASSEMBLAGE SUPPORTED WITHIN SAID EXHAUST TANK, SAID ARCEXTINGUISHING ASSEMBLAGE INCLUDING A PLURALITY OF SERIALLY RELATED ARC-EXTINGUISHING UNITS, EACH OF SAID ARC-EXTINGUISHING UNITS COMPRISING ARC-SPLITTER MEANS FOR BREAKING UP AN ARC TO EFFECT EXTINCTION OF THE ARC, MEANS FOR SIMULTANEOUSLY DRAWING A PLURALITY OF SERIALLY RELATED ARCS ALONG THE ASSEMBLAGE ONE WITHIN EACH ARC-EXTINGUISHING UNIT, A SOURCE OF HIGH-PRESSURE GAS, A SEPARATE BLAST VALVE ASSOCIATED WITH EACH ARC-EXTINGUISHING UNIT AND OPERABLE TO DIRECT A BLAST OF GAS CROSSWISE TOWARD THE ARC ESTABLISHED WITHIN THAT UNIT TO FORCE THE ARC INTO THE ASSOCIATED ARC-SPLITTER MEANS, AND MEANS FOR EFFECTING SIMULTANEOUS ACTUATION OF THE BLAST VALVES.
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |