US3351843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1964-09-14
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Granted: 1967-11-07
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Lynn L Tipton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:48
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/26; H02P9/30; H02P9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A REGULATING SYSTEM FOR A DYNAMOELECTRIC MACHINE HAVING OUTPUT TERMINALS AND AN EXCITATION FIELD WINDING COMPRISING, FIRST MEANS CONNECTED IN CIRCUIT RELATION WITH SAID OUTPUT TERMINALS PRODUCING A FIRST SIGNAL PROPORTIONAL TO THE OUTPUT VOLTAGE OF SAID DYNAMOELECTRIC MACHINE, SECOND MEANS CONNECTED IN CIRCUIT RELATION WITH SAID OUTPUT TERMINALS PRODUCNG A SECOND SIGNAL HAVING A PREDETERMINED SLOPE, THIRD MEANS HAVING FIRST, SECOND AND THIRD TERMINALS AND THE CHARACTERISTIC OF BLOCKING CURRENT FLOW FROM THE THIRD TO THE FIRST TERMINAL UNIT THE VOLTAGE APPLIED TO THE THIRD TERMINAL EXCEEDS THE PRODUCT OF THE VOLTAGE APPLIED ACROSS THE FIRST AND SECOND TERMINALS AND A CONSTANT, SAID FIRST SIGNAL BEING APPLIED ACROSS THE FIRST AND SECOND TERMINALS OF SAID THIRD MEANS, SAID SECOND SIGNAL BEING APPLIED TO THE THIRD TERMINAL OF SAID THIRD MEANS, FOURTH MEANS CONNECTED IN CIRCUIT RELATION WITH SAID THIRD MEANS PRODUCING A THIRD SIGNAL WHEN SAID SECOND SIGNAL EXCEEDS THE PRODUCT OF SAID FIRST SIGNAL AND SAID CONSTANT, AND FIFTH MEANS CONNECTED IN CIRCUIT RELATION WITH SAID FOURTH MEANS AND SAID FIELD WINDING PROVIDING A UNIDIRECTIONAL EXCITATION POTENTIAL FOR SAID FIELD WINDING IN RESPONSE TO SAID THIRD SIGNAL TO MAINTAIN THE OUTPUT VOLTAGE OF SAID DYNAMOELECTRIC MACHINE AT A PREDETERMINED MAGNITUDE.
Claim 2
Dependent Claim
202 words
A REGULATING SYSTEM FOR A DYNAMOELECTRIC MACHINE HAVING OUTPUT TERMINALS AND AN EXCITATION FIELD WINDING COMPRISING, FIRST MEANS CONNECTED IN CIRCUIT RELATION WITH SAID OUTPUT TERMINALS PRODUCING A FIRST SIGNAL PROPORTIONAL TO THE OUTPUT VOLTAGE OF SAID DYNAMOELECTRIC MACHINE, SECOND MEANS CONNECTED IN CIRCUIT RELATION WITH SAID OUTPUT TERMINALS PRODUCNG A SECOND SIGNAL HAVING A PREDETERMINED SLOPE, THIRD MEANS HAVING FIRST, SECOND AND THIRD TERMINALS AND THE CHARACTERISTIC OF BLOCKING CURRENT FLOW FROM THE THIRD TO THE FIRST TERMINAL UNIT THE VOLTAGE APPLIED TO THE THIRD TERMINAL EXCEEDS THE PRODUCT OF THE VOLTAGE APPLIED ACROSS THE FIRST AND SECOND TERMINALS AND A CONSTANT, SAID FIRST SIGNAL BEING APPLIED ACROSS THE FIRST AND SECOND TERMINALS OF SAID THIRD MEANS, SAID SECOND SIGNAL BEING APPLIED TO THE THIRD TERMINAL OF SAID THIRD MEANS, FOURTH MEANS CONNECTED IN CIRCUIT RELATION WITH SAID THIRD MEANS PRODUCING A THIRD SIGNAL WHEN SAID SECOND SIGNAL EXCEEDS THE PRODUCT OF SAID FIRST SIGNAL AND SAID CONSTANT, AND FIFTH MEANS CONNECTED IN CIRCUIT RELATION WITH SAID FOURTH MEANS AND SAID FIELD WINDING PROVIDING A UNIDIRECTIONAL EXCITATION POTENTIAL FOR SAID FIELD WINDING IN RESPONSE TO SAID THIRD SIGNAL TO MAINTAIN THE OUTPUT VOLTAGE OF SAID DYNAMOELECTRIC MACHINE AT A PREDETERMINED MAGNITUDE.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |