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US3094601A
Expired / Lapsed
US
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Operating device for the movable contact of the main braking gap in an air blast circuit breaker
Assignee: ABB Norden Holding AB
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Filing: 1961-09-28
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Granted: 1963-06-18
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Expires: 1981-09-28
Abstract
No abstract record available.
Inventors
- 👤 Forwald Haakon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:04
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/80; H01H33/82; H01H33/83; H01H3/00; H01H3/32; H01H3/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
AN OPERATING MECHANISM FOR THE MOVABLE CONTACT OF AN AIR BLAST CIRCUIT BREAKER; SAID MOVABLE CONTACT BEING MOVABLE INTO AND OUT OF ENGAGEMENT WITH RESPECT TO A RELATIVELY STATIONARY CONTACT; SAID MOVABLE AND STATIONARY CONTACTS BEING CONTAINED WITHIN A HIGH PRESSURE AIR CONTAINER; SAID HIGH PRESSURE AIR CONTAINER HAVING A BLAST VALVE THEREIN FOR CONNECTING THE INTERIOR OF SAID CONTAINER TO EXTERNAL ATMOSPHERE AND CAUSING AN AIR BLAST PAST SAID MOVABLE AND STATIONARY CONTACTS; SAID OPERATING MECHANISM INCLUDING A PISTON ROD HAVING ONE END CONNECTED TO SAID MOVABLE CONTACT; SAID PISTON ROD EXTENDING THROUGH SAID BLAST VALVE; THE OTHER END OF SAID PISTON ROD BEING CONNECTED TO A FIRST PISTON; SAID BLAST VALVE BEING CONNECTED TO A SECOND PISTON; SAID FIRST AND SECOND PISTONS HAVING ADJACENTLY POSITIONED SURFACES DEFINING A FIRST ENCLOSED VOLUME; THE OPPOSITE SURFACE OF
Claim 2
Dependent Claim
137 words
AN OPERATING MECHANISM FOR THE MOVABLE CONTACT OF AN AIR BLAST CIRCUIT BREAKER; SAID MOVABLE CONTACT BEING MOVABLE INTO AND OUT OF ENGAGEMENT WITH RESPECT TO A RELATIVELY STATIONARY CONTACT; SAID MOVABLE AND STATIONARY CONTACTS BEING CONTAINED WITHIN A HIGH PRESSURE AIR CONTAINER; SAID HIGH PRESSURE AIR CONTAINER HAVING A BLAST VALVE THEREIN FOR CONNECTING THE INTERIOR OF SAID CONTAINER TO EXTERNAL ATMOSPHERE AND CAUSING AN AIR BLAST PAST SAID MOVABLE AND STATIONARY CONTACTS; SAID OPERATING MECHANISM INCLUDING A PISTON ROD HAVING ONE END CONNECTED TO SAID MOVABLE CONTACT; SAID PISTON ROD EXTENDING THROUGH SAID BLAST VALVE; THE OTHER END OF SAID PISTON ROD BEING CONNECTED TO A FIRST PISTON; SAID BLAST VALVE BEING CONNECTED TO A SECOND PISTON; SAID FIRST AND SECOND PISTONS HAVING ADJACENTLY POSITIONED SURFACES DEFINING A FIRST ENCLOSED VOLUME; THE OPPOSITE SURFACE OF
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |