US3165649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick turn-off circuit using tunnel diode and inductive kick to effect off condition
Assignee: AULT Inc
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Filing: 1962-09-04
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Granted: 1965-01-12
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Ault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:36
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A QUICK TURN-OFF SUBCIRCUIT USE WITH A CONTROLLED, FILTERED, DIRECT CURRENT SUPPLY CIRCUIT TO A LOAD INCLUDING A FILTER SUBCIRCUIT CONNECTED TO SAID LOAD, A FULL WAVE POWER RECTIFIER SUBCIRCUIT CONNECTED TO SAID FILTER, SAID POWER RECTIFIER SUBCIRCUIT INCLUDING A PAIR OF SILICON CONTROLLED RECTIFIERS HAVING GATES, A MAGNETIC AMPLIFIER SUBCIRCUIT EXCITING SAID GATES, A FULL WAVE CONTROL RECTIFIER SUBCIRCUIT FEEDDING SAID MAGNETIC AMPLIFIER SUBCIRCUIT, A SOURCE OF ALTERNATING ELECTROMOTIVE FORCE DRIVING EACH OF SAID RECTIFIER SUBCIRCUITS, SAID QUICK TURN-OFF SUBCIRCUIT INCLUDING A CURRENT OVERLOAD CONTROL RESISTOR CONNECTED IN SERIES WITH SAID LOAD BETWEEN THE LOAD AND SAID FILTER, A TRANSISTOR HAVING ITS EMITTER AND COLLECTOR CONNECTED IN SERIES BETWEEN THE OUTPUT OF SAID CONTROL RECTIFIER SUBCIRCUIT AND SAID MAGNETIC AMPLIFIER SUBCIRCUIT, MEANS OPERATIVE SELEC-
Claim 2
Dependent Claim
125 words
A QUICK TURN-OFF SUBCIRCUIT USE WITH A CONTROLLED, FILTERED, DIRECT CURRENT SUPPLY CIRCUIT TO A LOAD INCLUDING A FILTER SUBCIRCUIT CONNECTED TO SAID LOAD, A FULL WAVE POWER RECTIFIER SUBCIRCUIT CONNECTED TO SAID FILTER, SAID POWER RECTIFIER SUBCIRCUIT INCLUDING A PAIR OF SILICON CONTROLLED RECTIFIERS HAVING GATES, A MAGNETIC AMPLIFIER SUBCIRCUIT EXCITING SAID GATES, A FULL WAVE CONTROL RECTIFIER SUBCIRCUIT FEEDDING SAID MAGNETIC AMPLIFIER SUBCIRCUIT, A SOURCE OF ALTERNATING ELECTROMOTIVE FORCE DRIVING EACH OF SAID RECTIFIER SUBCIRCUITS, SAID QUICK TURN-OFF SUBCIRCUIT INCLUDING A CURRENT OVERLOAD CONTROL RESISTOR CONNECTED IN SERIES WITH SAID LOAD BETWEEN THE LOAD AND SAID FILTER, A TRANSISTOR HAVING ITS EMITTER AND COLLECTOR CONNECTED IN SERIES BETWEEN THE OUTPUT OF SAID CONTROL RECTIFIER SUBCIRCUIT AND SAID MAGNETIC AMPLIFIER SUBCIRCUIT, MEANS OPERATIVE SELEC-
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) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |