Patent US3168484A successfully refreshed from Google Patents.
US3263155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator for generators
Assignee: Robert Bosch GmbH
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Filing: 1963-04-01
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Granted: 1966-07-26
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Dietl Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:30
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/06; H02H7/065; H02J; H02J7/00; H02J7/14; H02J7/16; H02J7/60; H02J7/62; H02J7/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
VOLTAGE REGULATOR FOR A SELF-EXCITED GENERATOR HAVING A SHUNT EXCITER WINDING AND BEING OPERABLE AT GREATELY VARYING SPEEDS, COMPRISING, IN COMBINATION, MAIN TRANSISTOR MEANS HAVING COLLECTOR, EMITTER AND BASE ELECTRODES, RESPECTIVELY, FOR CONTROLLING THE EXCITER CURRENT OF THE GENERATOR, THE COLLECTOR-EMITTER CIRCUIT OF SAID TRANSISTOR MEANS BEING CONNECTED IN SERIES WITH ONE END OF THE SHUNT EXCITER WINDING; BASE RESISTOR MEANS CONNECTED BETWEEN SAID BASE ELECTRODE AND THE OTHER END OF SAID SHUNT EXCITER WINDING FOR ASSURING EXCITATION UPON STARTING THE GENERATOR FROM STANDSTILL, CONTROL TRANSISTOR MEANS HAVING COLLECTOR, EMITTER AND BASE ELECTRODES, RESPECTIVELY, FOR ALTERNATIVELY RENDERING SAID MAIN TRANSISTOR MEANS NON-CONDUCTIVE WHEN THE OUTPUT OF VOLTAGE OF THE GENERATOR IS SUPERIOR TO A PREDETERMINED VALUE, AND FOR RENDERING SAID MAIN TRANSISTOR MEANS CONDUCTIVE WHEN SAID OUTPUT VOLTAGE IS INFERIOR TO SAID PREDETERMINED VALUE, SAID COLLECTOR ELECTRODE OF SAID CONTROL TRANSISTOR MEANS BEING CONNECTED BOTH WITH A JUNCTION POINT BETWEEN SAID BASE RESISTOR MEANS AND SAID BASE ELECTRODE OF SAID MAIN TRANSISTOR MEANS, SAID BASE ELECTRODE OF SAID CONTROL TRANSISTOR MEANS BEING CONNECTED WITH ONE OUTPUT OF THE GENERATOR SO AS TO CARRY A POTENTIAL PROPORTIONAL TO SAID OUTPUT VOLTAGE: SERIES-RESISTOR MEANS
Claim 2
Dependent Claim
192 words
VOLTAGE REGULATOR FOR A SELF-EXCITED GENERATOR HAVING A SHUNT EXCITER WINDING AND BEING OPERABLE AT GREATELY VARYING SPEEDS, COMPRISING, IN COMBINATION, MAIN TRANSISTOR MEANS HAVING COLLECTOR, EMITTER AND BASE ELECTRODES, RESPECTIVELY, FOR CONTROLLING THE EXCITER CURRENT OF THE GENERATOR, THE COLLECTOR-EMITTER CIRCUIT OF SAID TRANSISTOR MEANS BEING CONNECTED IN SERIES WITH ONE END OF THE SHUNT EXCITER WINDING; BASE RESISTOR MEANS CONNECTED BETWEEN SAID BASE ELECTRODE AND THE OTHER END OF SAID SHUNT EXCITER WINDING FOR ASSURING EXCITATION UPON STARTING THE GENERATOR FROM STANDSTILL, CONTROL TRANSISTOR MEANS HAVING COLLECTOR, EMITTER AND BASE ELECTRODES, RESPECTIVELY, FOR ALTERNATIVELY RENDERING SAID MAIN TRANSISTOR MEANS NON-CONDUCTIVE WHEN THE OUTPUT OF VOLTAGE OF THE GENERATOR IS SUPERIOR TO A PREDETERMINED VALUE, AND FOR RENDERING SAID MAIN TRANSISTOR MEANS CONDUCTIVE WHEN SAID OUTPUT VOLTAGE IS INFERIOR TO SAID PREDETERMINED VALUE, SAID COLLECTOR ELECTRODE OF SAID CONTROL TRANSISTOR MEANS BEING CONNECTED BOTH WITH A JUNCTION POINT BETWEEN SAID BASE RESISTOR MEANS AND SAID BASE ELECTRODE OF SAID MAIN TRANSISTOR MEANS, SAID BASE ELECTRODE OF SAID CONTROL TRANSISTOR MEANS BEING CONNECTED WITH ONE OUTPUT OF THE GENERATOR SO AS TO CARRY A POTENTIAL PROPORTIONAL TO SAID OUTPUT VOLTAGE: SERIES-RESISTOR MEANS
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |