US3189718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed-gas circuit interrupter with hydraulic operating means extending upwardly through supporting insulating column means
Assignee: Mitsubishi Electric Corp
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Filing: 1962-08-15
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Granted: 1965-06-15
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Expires: 1982-08-15
Abstract
No abstract record available.
Inventors
- 👤 Tominaga Shotaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:44
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/42; H01B17/44; H01H; H01H33/00; H01H33/008; H01H33/02; H01H33/28; H01H33/30; H01H33/34; H01H33/04; H01H33/14; H01H2033/146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A COMPRESSED-GAS CIRCUIT INTERRUPTER INCLUDING A RELATIVELY LOW-PRESSURE METALLIC EXHAUST TANK DISPOSED AT HIGH POTENTIAL, HOLLOW INSULATING SUPPORTING COLUMN MEANS EXTENDING UP IN THE AIR AND SUPPORTING SAID HIGH-POTENTIAL METALLIC EXHAUST TANK, A PAIR OF TERMINAL BUSHINGS EXTENDING INTO SAID METALLIC EXHAUST TANK AND CARRYING CONDUCTING STRUCTURES AT THEIR INTERIOR ENDS, A HIGH-PRESSURE STORAGE TANK DISPOSED AT HIGH-POTENTIAL WITHIN SAID TANK, A PAIR OF SERIALLY-RELATED GAS-BLAST ARC-EXTINGUISHING UNITS DISPOSED WITHIN THE METALLIC EXHAUST TANK, A PAIR OF SERIALLYRELATED MOVABLE CONTACT MEANS FOR CONDUCTIVELY BRIDGING SAID CONDUCTING STRUCTURES, AND HYDRAULIC MEANS EXTENDING
Claim 2
Dependent Claim
91 words
A COMPRESSED-GAS CIRCUIT INTERRUPTER INCLUDING A RELATIVELY LOW-PRESSURE METALLIC EXHAUST TANK DISPOSED AT HIGH POTENTIAL, HOLLOW INSULATING SUPPORTING COLUMN MEANS EXTENDING UP IN THE AIR AND SUPPORTING SAID HIGH-POTENTIAL METALLIC EXHAUST TANK, A PAIR OF TERMINAL BUSHINGS EXTENDING INTO SAID METALLIC EXHAUST TANK AND CARRYING CONDUCTING STRUCTURES AT THEIR INTERIOR ENDS, A HIGH-PRESSURE STORAGE TANK DISPOSED AT HIGH-POTENTIAL WITHIN SAID TANK, A PAIR OF SERIALLY-RELATED GAS-BLAST ARC-EXTINGUISHING UNITS DISPOSED WITHIN THE METALLIC EXHAUST TANK, A PAIR OF SERIALLYRELATED MOVABLE CONTACT MEANS FOR CONDUCTIVELY BRIDGING SAID CONDUCTING STRUCTURES, AND HYDRAULIC MEANS EXTENDING
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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |