Patent US3588520A successfully refreshed from Google Patents.
US3588520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-voltage electric circuit breaker with high-speed stripping means
Assignee: General Electric Co
•
Filing: 1969-10-29
•
Granted: 1971-06-28
•
Expires: 1989-10-29
Abstract
Abstract RELATES TO A HIGH-VOLTAGE ELECTRIC CIRCUIT BREAKER WITH HIGHSPEED TRIPPING MEANS COMPRISING A CAPACITOR LOCATED IN A REGION OF LINE POTENTIAL. TRIPPING IS EFFECTED BY DISCHARGING THE CAPACITOR. THE CAPACITOR IS MAINTAINED IN A CHARGED CONDITION BY MEANS COMPRISING A HYDRAULIC MOTOR IN THE REGION OF LINE POTENTIAL, A PUMP IN A REGION OF GROUND POTENTIAL, AND A HYDRAULIC CIRCUIT INTERCONNECTING THE PUMP AND MOTOR. THE HYDRAULIC CIRCUIT HAS PORTIONS EXTENDING BETWEEN SAID LINE POTENTIAL REGION AND SAID GROUND POTENTIAL REGION WHICH ARE PRIMARILY OF ELECTRICAL INSULATING MATERIAL.
Inventors
- 👤 Philip Barkan
- 👤 Peter Kotos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:28
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/52; H01H33/00; H01H33/02; H01H33/42; H01H33/423; H01H2009/526; H01H33/60; H01H33/66; H01H33/6606; H01H2033/6613; H01H33/28; H01H33/30; H01H33/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |