Patent US3118995A successfully refreshed from Google Patents.
US3118995A
Expired / Lapsed
US
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Eddy-current heater for compressedgas circuit interrupters
Assignee: Westinghouse Electric Corp
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Filing: 1961-04-20
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Granted: 1964-01-21
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Expires: 1981-04-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert G Colcaser
- 👤 Russell N Yeckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:05
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/53; H01H33/56; H01H33/562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
THE COMBINATION IN A COMPRESSED-GAS CIRCUIT INTERRUPTER OF AN EXHAUST TANK, A HIGH-PRESSURE AUXILIARY TANK DISPOSED OUTSIDE THE NORMAL MAGNETIC FLUX PATH OF THE EXHAUST TANK AND CONNECTED TO THE EXHAUST TANK, AN ARC EXTINGUISHING ASSEMBLAGE DISPOSED INTERIORLY OF SAID EXHAUST TANK FOR CARRYING LOAD CURRENT, THE EXHAUST TANK AND THE HIGH-PRESSURE AUXILIARY TANK COLLECTIVELY FORMING A MAGNETIC CIRCUIT WHICH ENCIRCLES THE NORMAL CURRENT PATH THROUGH THE CIRCUIT INTERRUPTER, AND MEANS FOR DIVERTING MAGNETIC FLUX IN THE EXHAUST TANK THROUGH THE WALLS OF THE HIGH-PRESSURE AUXILIARY RESERVOIR TANK TO BRING ABOUT EDDY-CURRENT HEATING LOSSES TO PREVENT LIQUEFACTION OF THE HIGH-PRESSURE GAS.
Claim 2
Dependent Claim
101 words
THE COMBINATION IN A COMPRESSED-GAS CIRCUIT INTERRUPTER OF AN EXHAUST TANK, A HIGH-PRESSURE AUXILIARY TANK DISPOSED OUTSIDE THE NORMAL MAGNETIC FLUX PATH OF THE EXHAUST TANK AND CONNECTED TO THE EXHAUST TANK, AN ARC EXTINGUISHING ASSEMBLAGE DISPOSED INTERIORLY OF SAID EXHAUST TANK FOR CARRYING LOAD CURRENT, THE EXHAUST TANK AND THE HIGH-PRESSURE AUXILIARY TANK COLLECTIVELY FORMING A MAGNETIC CIRCUIT WHICH ENCIRCLES THE NORMAL CURRENT PATH THROUGH THE CIRCUIT INTERRUPTER, AND MEANS FOR DIVERTING MAGNETIC FLUX IN THE EXHAUST TANK THROUGH THE WALLS OF THE HIGH-PRESSURE AUXILIARY RESERVOIR TANK TO BRING ABOUT EDDY-CURRENT HEATING LOSSES TO PREVENT LIQUEFACTION OF THE HIGH-PRESSURE GAS.
References Cited (Backward Citations)
GB626842A
Cited
FR1222392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |