US3260924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current voltage converter
Assignee: Vapor Corp
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Filing: 1964-02-10
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Granted: 1966-07-12
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Expires: 1984-02-10
Abstract
No abstract record available.
Inventors
- 👤 Richard C Bridgeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:30
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/125; H02M3/135; H02M3/137
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A DIRECT CURRENT CONVERTER FOR TRANSFORMING DIRECT CURRENT VOLTAGE AT ONE LEVEL TO DIRECT CURRENT VOLTAGE AT A LOWER LEVEL, SAID CONVERTER COMPRISING INPUT AND OUTPUT TERMINALS, A FIRST SILICON CONTROLLED RECTIFIER CONNECTED IN SERIES BETWEEN THE INPUT AND OUTPUT TERMINALS FOR INTERRUPTING THE VOLTAGE AT SAID ONE LEVEL TO PRODUCE A PULSATING DIRECT CURRENT VOLTAGE, A TIME BASE OSCILLATOR CONNECTED IN PARALLEL WITH SAID FIRST SILICON CONTROLLED RECTIFIER FOR TURNING OFF THE SAME PERIODICALLY, SAID OSCILLATOR INCLUDING A CHOKE, A SECOND SILICON CONTROLLED RECTIFIER AND A RESISTOR IN SERIES ACROSS THE INPUT TERMINALS AT THE INPUT END OF THE FIRST RECTIFIER, AND VOLTAGE DIVIDER MEANS BETWEEN SAID INPUT TERMINALS TO CONSTANTLY IMPOSE ON THE GATE OF SAID SECOND RECTIFIER A PORTION OF THE VOLTAGE AT SAID ONE LEVEL, A COMMUTATING CONDENSER BETWEEN THE OUTPUT ENDS OF SAID RECTIFIERS, MEANS AT THE OUTPUT END OF SAID FIRST RECTIFIER TO PRODUCE AN AVERAGE OUTPUT VOLTAGE, AND DETECTOR MEANS FOR DETECTING THE AVERAGE OUTPUT VOLTAGE AT THE OUTPUT END OF SAID FIRST RECTIFIER TO IMPOSE A TURN-ON VOLTAGE ON THE GATE OF SAID FIRST RECTIFIER.
Claim 2
Dependent Claim
183 words
A DIRECT CURRENT CONVERTER FOR TRANSFORMING DIRECT CURRENT VOLTAGE AT ONE LEVEL TO DIRECT CURRENT VOLTAGE AT A LOWER LEVEL, SAID CONVERTER COMPRISING INPUT AND OUTPUT TERMINALS, A FIRST SILICON CONTROLLED RECTIFIER CONNECTED IN SERIES BETWEEN THE INPUT AND OUTPUT TERMINALS FOR INTERRUPTING THE VOLTAGE AT SAID ONE LEVEL TO PRODUCE A PULSATING DIRECT CURRENT VOLTAGE, A TIME BASE OSCILLATOR CONNECTED IN PARALLEL WITH SAID FIRST SILICON CONTROLLED RECTIFIER FOR TURNING OFF THE SAME PERIODICALLY, SAID OSCILLATOR INCLUDING A CHOKE, A SECOND SILICON CONTROLLED RECTIFIER AND A RESISTOR IN SERIES ACROSS THE INPUT TERMINALS AT THE INPUT END OF THE FIRST RECTIFIER, AND VOLTAGE DIVIDER MEANS BETWEEN SAID INPUT TERMINALS TO CONSTANTLY IMPOSE ON THE GATE OF SAID SECOND RECTIFIER A PORTION OF THE VOLTAGE AT SAID ONE LEVEL, A COMMUTATING CONDENSER BETWEEN THE OUTPUT ENDS OF SAID RECTIFIERS, MEANS AT THE OUTPUT END OF SAID FIRST RECTIFIER TO PRODUCE AN AVERAGE OUTPUT VOLTAGE, AND DETECTOR MEANS FOR DETECTING THE AVERAGE OUTPUT VOLTAGE AT THE OUTPUT END OF SAID FIRST RECTIFIER TO IMPOSE A TURN-ON VOLTAGE ON THE GATE OF SAID FIRST RECTIFIER.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |