US3071670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupters
Assignee: Westinghouse Electric Corp
•
Filing: 1959-07-01
•
Granted: 1963-01-01
•
Expires: 1979-07-01
Abstract
No abstract record available.
Inventors
- 👤 Russell N Yeckley
- 👤 Frank L Reese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:57
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/70; H01H33/88; H01H33/90; H01H33/91; H01H33/02; H01H33/022; H01H2033/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A THREE-PHASE, FLUID-BLAST CIRCUIT INTERRUPTER INCLUDING A GROUNDED DEAD TANK, THREE PAIRS OF TERMINAL BUSHINGS EXTENDING INTO SAID GROUNDED DEAD TANK, THREE ROTATABLE CRANK ARMS HINGED IN STAGGERED RELATION TO THE INTERIOR ENDS OF THREE OF SAID TERMINAL BUSHINGS, THREE RELATIVELY STATIONARY CONTACT STRUCTURES IN STAGGERED ARRANGEMENT ASSOCIATED WITH THE INTERIOR ENDS OF THE REMAINING THREE TERMINAL BUSHINGS, A SINGLE CENTRALLY LOCATED PUMPING DEVICE INCLUDING AN OPERATING CYLINDER AND A PISTON MOVABLE THEREIN, A CENTRALLY-LOCATED SYMMETRICAL Y-SHAPED FLUID INLET CONDUIT STRUCTURE INCLUDING THREE RADIALLY EXTENDING INLET CONDUITS ASSOCIATED WITH SAID SINGLE PUMPING DEVICE
Claim 2
Dependent Claim
93 words
A THREE-PHASE, FLUID-BLAST CIRCUIT INTERRUPTER INCLUDING A GROUNDED DEAD TANK, THREE PAIRS OF TERMINAL BUSHINGS EXTENDING INTO SAID GROUNDED DEAD TANK, THREE ROTATABLE CRANK ARMS HINGED IN STAGGERED RELATION TO THE INTERIOR ENDS OF THREE OF SAID TERMINAL BUSHINGS, THREE RELATIVELY STATIONARY CONTACT STRUCTURES IN STAGGERED ARRANGEMENT ASSOCIATED WITH THE INTERIOR ENDS OF THE REMAINING THREE TERMINAL BUSHINGS, A SINGLE CENTRALLY LOCATED PUMPING DEVICE INCLUDING AN OPERATING CYLINDER AND A PISTON MOVABLE THEREIN, A CENTRALLY-LOCATED SYMMETRICAL Y-SHAPED FLUID INLET CONDUIT STRUCTURE INCLUDING THREE RADIALLY EXTENDING INLET CONDUITS ASSOCIATED WITH SAID SINGLE PUMPING DEVICE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |