Patent US3302089A successfully refreshed from Google Patents.
US3302089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for controlling the output of plural field dynamoelectric machine
Assignee: Westinghouse Electric Corp
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Filing: 1964-02-07
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Granted: 1967-01-31
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Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Rosa John
- 👤 Peter E Pityk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:04
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/03; H02P7/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
213 words
IN A SYSTEM FOR REGULATING A CONDITION CONTROLLED BY A DYNAMOELECTRIC MACHINE HAVING FIRST AND SECOND EXCITATION WINDINGS FOR PROVIDING OPPOSITELY RELATED CONTROL EFFECTS ON THE MACHINE, FIRST AND SECOND POWER INPUT TERMINALS, FIRST AND SECOND CONTROLLED ELECTRIC VALVES, EACH VALVE HAVING A CONTROL ELECTRODE, FIRST AND SECOND POWER ELECTRODES AND A MAIN CURRENT PATH EXTENDING FROM ONE TO THE OTHER OF ITS POWER ELECTRODES, EACH VALVE BEING CONDUCTIVE IN RESPONSE TO THE APPLICATION OF A CONTROL SIGNAL TO ITS CONTROL ELECTRODE, MEANS CONNECTING THE FIRST INPUT TERMINAL TO ONE END OF EACH OF SAID WINDINGS, MEANS CONNECTING THE OTHER END OF THE FIRST WINDING TO THE FIRST POWER ELECTRODE OF THE FIRST VALVE, MEANS CONNECTING THE SECOND POWER ELECTRODE OF THE FIRST VALVE TO THE SECOND INPUT TERMINAL, MEANS CONNECTING THE OTHER END OF THE SECOND WINDING TO THE FIRST POWER ELECTRODE OF THE SECOND VALVE, MEANS CONNECTING THE SECOND POWER ELECTRODE OF THE SECOND VALUE OF THE SECOND INPUT TERMINAL, WHEREBY SAID OTHER END OF EACH OF SAID WINDINGS IS COUPLED TO THE SECOND INPUT TERMINAL THROUGH THE MAIN CURRENT PATH OF A DIFFERENT ONE OF SAID VALVES, SAID VALVES BEING POLED ALIKE RELATIVE TO SAID INPUT TERMINALS, MEANS RESPONSIVE TO DEVIATION OF SAID CONDITION IN ONE DIRECTION FROM A PREDETER-
Claim 2
Dependent Claim
213 words
IN A SYSTEM FOR REGULATING A CONDITION CONTROLLED BY A DYNAMOELECTRIC MACHINE HAVING FIRST AND SECOND EXCITATION WINDINGS FOR PROVIDING OPPOSITELY RELATED CONTROL EFFECTS ON THE MACHINE, FIRST AND SECOND POWER INPUT TERMINALS, FIRST AND SECOND CONTROLLED ELECTRIC VALVES, EACH VALVE HAVING A CONTROL ELECTRODE, FIRST AND SECOND POWER ELECTRODES AND A MAIN CURRENT PATH EXTENDING FROM ONE TO THE OTHER OF ITS POWER ELECTRODES, EACH VALVE BEING CONDUCTIVE IN RESPONSE TO THE APPLICATION OF A CONTROL SIGNAL TO ITS CONTROL ELECTRODE, MEANS CONNECTING THE FIRST INPUT TERMINAL TO ONE END OF EACH OF SAID WINDINGS, MEANS CONNECTING THE OTHER END OF THE FIRST WINDING TO THE FIRST POWER ELECTRODE OF THE FIRST VALVE, MEANS CONNECTING THE SECOND POWER ELECTRODE OF THE FIRST VALVE TO THE SECOND INPUT TERMINAL, MEANS CONNECTING THE OTHER END OF THE SECOND WINDING TO THE FIRST POWER ELECTRODE OF THE SECOND VALVE, MEANS CONNECTING THE SECOND POWER ELECTRODE OF THE SECOND VALUE OF THE SECOND INPUT TERMINAL, WHEREBY SAID OTHER END OF EACH OF SAID WINDINGS IS COUPLED TO THE SECOND INPUT TERMINAL THROUGH THE MAIN CURRENT PATH OF A DIFFERENT ONE OF SAID VALVES, SAID VALVES BEING POLED ALIKE RELATIVE TO SAID INPUT TERMINALS, MEANS RESPONSIVE TO DEVIATION OF SAID CONDITION IN ONE DIRECTION FROM A PREDETER-
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |