US3268798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable voltage control circuit
Assignee: Superior Electric Co
•
Filing: 1962-04-27
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Granted: 1966-08-23
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Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Leonard J G Burski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:53
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/34; G05F1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN ADJUSTABLE VOLTAGE CONTROL CIRCUIT FOR PROVIDING AN OUTPUT VOLTAGE TO A LOAD CIRCUIT THAT IS ADJUSTABLE IN VALUE AND MAINTAINABLE AT AN ADJUSTED VALUE COMPRISING INPUT MTERMINALS ADAPTED TO BE CONNECTED TO A SOURCE OF ALTERNATING CURRENT, OUTPUT TERMINALS ADAPTED TO BE CONNECTED TO THE LOAD CIRCUIT, POWER MEANS POSITIONED BETWEEN THE INPUT AND OUTPUT TERMINAL AND RESPONSIVE TO A CONTROL SIGNAL FOR CONTROLLING THE OUTPUT VOLTAGE, AN ADJUSTABLE CONTROL MEANS FOR SUPPLYING A UNIDIRECTIONAL VOLTAGE SIGNAL FORM SUBSTANTIALLY ZERO TO MAXIMUM PROPORTIONAL TO THE VALUE OF OUTPUT VOLTAGE DESIRED, ERROR MEANS OPERATIVELY ASSOCIATED WITH THE OUTPUT TERMINALS FOR PRODUCING A UNIDIRECTIONAL VOLTAGE SIGNAL PROPORTIONAL TO THE VALUE OF THE OUTPUT VOLTAGE, A TRANSISTOR HAVING A BASE, EMITTER AND COLLECTOR, MEANS FOR APPLYING THE SIGNAL VOLTAGE OF THE ADJUSTABLE CONTROL MEANS AND THE SIGNAL VOLTAGE OF THE ERROR ACROSS THE EMITTER-BASE OF THE TRANSISTOR TO VARYS THE CONDUCTIVITY IN THE EMITTERCOLLECTOR THEREOF, AND MEANS FOR SENSING THE CONDUCTIVITY OF THE TRANSISTOR AND SUPPLYING A CONTROL SIGNAL
Claim 2
Dependent Claim
167 words
AN ADJUSTABLE VOLTAGE CONTROL CIRCUIT FOR PROVIDING AN OUTPUT VOLTAGE TO A LOAD CIRCUIT THAT IS ADJUSTABLE IN VALUE AND MAINTAINABLE AT AN ADJUSTED VALUE COMPRISING INPUT MTERMINALS ADAPTED TO BE CONNECTED TO A SOURCE OF ALTERNATING CURRENT, OUTPUT TERMINALS ADAPTED TO BE CONNECTED TO THE LOAD CIRCUIT, POWER MEANS POSITIONED BETWEEN THE INPUT AND OUTPUT TERMINAL AND RESPONSIVE TO A CONTROL SIGNAL FOR CONTROLLING THE OUTPUT VOLTAGE, AN ADJUSTABLE CONTROL MEANS FOR SUPPLYING A UNIDIRECTIONAL VOLTAGE SIGNAL FORM SUBSTANTIALLY ZERO TO MAXIMUM PROPORTIONAL TO THE VALUE OF OUTPUT VOLTAGE DESIRED, ERROR MEANS OPERATIVELY ASSOCIATED WITH THE OUTPUT TERMINALS FOR PRODUCING A UNIDIRECTIONAL VOLTAGE SIGNAL PROPORTIONAL TO THE VALUE OF THE OUTPUT VOLTAGE, A TRANSISTOR HAVING A BASE, EMITTER AND COLLECTOR, MEANS FOR APPLYING THE SIGNAL VOLTAGE OF THE ADJUSTABLE CONTROL MEANS AND THE SIGNAL VOLTAGE OF THE ERROR ACROSS THE EMITTER-BASE OF THE TRANSISTOR TO VARYS THE CONDUCTIVITY IN THE EMITTERCOLLECTOR THEREOF, AND MEANS FOR SENSING THE CONDUCTIVITY OF THE TRANSISTOR AND SUPPLYING A CONTROL SIGNAL
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |