US3378754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator with inverting capability
Assignee: General Electric Co
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Filing: 1965-12-21
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Granted: 1968-04-16
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Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 Jr George M Rosenberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:47
CPC Classifications
H; H02; H02P; H02P9/00; H02P9/14; H02P9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN EXCITATION CONTROLLER FOR A DYNAMOELECTRIC MACHINE HAVING AN INDUCTIVE FIELD EXCITATION MEANS, SAID CONTROLLER COMPRISING: (A) A SOURCE OF ALTERNATING-CURRENT POWER; (B) MEANS INCLUDING A FIRST CONTROLLABLE SEMICONDUCTIVE DEVICE COUPLING SAID SOURCE TO SAID FIELD EXCITATION MEANS; (C) A SECOND CONTROLLABLE SEMICONDUCTIVE DEVICE SHUNTING SAID FIELD EXCITATION MEANS; AND (D) REGULATOR MEANS INCLUDING A TRIGGER PULSE CIRCUIT CONNECTED TO SAID DEVICES AND ADAPTED TO RENDER SAID DEVICES ALTERNATELY CONDUCTIVE IN RESPONSE TO A SENSED CONDITION, SAID TRIGGER PULSE CIRCUIT PROVIDING AT LEAST ONE TRIGGER PULSE TO SAID DEVICES DURING EACH HALFCYCLE OF SAID SOURCE OF ALTERNATING-CURRENT POWER EVEN IN THE ABSENCE OF A DEMAND INDICATED BY THE STATE OF SAID SENSED CONDITION.
Claim 2
Dependent Claim
113 words
AN EXCITATION CONTROLLER FOR A DYNAMOELECTRIC MACHINE HAVING AN INDUCTIVE FIELD EXCITATION MEANS, SAID CONTROLLER COMPRISING: (A) A SOURCE OF ALTERNATING-CURRENT POWER; (B) MEANS INCLUDING A FIRST CONTROLLABLE SEMICONDUCTIVE DEVICE COUPLING SAID SOURCE TO SAID FIELD EXCITATION MEANS; (C) A SECOND CONTROLLABLE SEMICONDUCTIVE DEVICE SHUNTING SAID FIELD EXCITATION MEANS; AND (D) REGULATOR MEANS INCLUDING A TRIGGER PULSE CIRCUIT CONNECTED TO SAID DEVICES AND ADAPTED TO RENDER SAID DEVICES ALTERNATELY CONDUCTIVE IN RESPONSE TO A SENSED CONDITION, SAID TRIGGER PULSE CIRCUIT PROVIDING AT LEAST ONE TRIGGER PULSE TO SAID DEVICES DURING EACH HALFCYCLE OF SAID SOURCE OF ALTERNATING-CURRENT POWER EVEN IN THE ABSENCE OF A DEMAND INDICATED BY THE STATE OF SAID SENSED CONDITION.
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) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |