US3384758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulation system for multiple d-c sources
Assignee: ABB Inc USA
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Filing: 1965-04-28
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Granted: 1968-05-21
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Expires: 1985-04-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:50
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/29; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/917; Y10S388/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A D-C VOLTAGE REGULATOR FOR REGULATING THE OUTPUT OF A FIRST AND SECOND D-C VOLTAGE SOURCE; SAID D-C- VOLTAGE REGULATOR CIRCUIT INCLUDING A FIRST AND SECOND VOLTAGE CHOPPER AND A FIRST AND SECOND RECTIFIER; SAID FIRST D-C VOLTAGE SOURCE, SAID FIRST VOLTAGE CHOPPER AND SAID FIRST RECTIFIER BEING CONNECTED IN CLOSED SERIES RELATION WITH THE POLARITY OF SAID FIRST RECTIFIER IN A DIRECTION TO OPPOSE CURRENT FLOW FROM SAID FIRST D-C SOURCE; SAID SECOND D-C VOLTAGE SOURCE, SAID SECOND VOLTAGE CHOPPER AND SAID SECOND RECTIFIER BEING CONNECTED IN CLOSED SERIES RELATION WITH THE POLARITY OF SAID SECOND RECTIFIER BEING IN A DIRECTION TO OPPOSE CURRENT FLOW FROM SAID SECOND D-C SOURCE; A PAIR OF OUTPUT TERMINALS; SAID FIRST AND SECOND RECTIFIER BEING CONNECTED IN SERIES WITH SAID PAIR OF OUTPUT TERMINALS
Claim 2
Dependent Claim
131 words
A D-C VOLTAGE REGULATOR FOR REGULATING THE OUTPUT OF A FIRST AND SECOND D-C VOLTAGE SOURCE; SAID D-C- VOLTAGE REGULATOR CIRCUIT INCLUDING A FIRST AND SECOND VOLTAGE CHOPPER AND A FIRST AND SECOND RECTIFIER; SAID FIRST D-C VOLTAGE SOURCE, SAID FIRST VOLTAGE CHOPPER AND SAID FIRST RECTIFIER BEING CONNECTED IN CLOSED SERIES RELATION WITH THE POLARITY OF SAID FIRST RECTIFIER IN A DIRECTION TO OPPOSE CURRENT FLOW FROM SAID FIRST D-C SOURCE; SAID SECOND D-C VOLTAGE SOURCE, SAID SECOND VOLTAGE CHOPPER AND SAID SECOND RECTIFIER BEING CONNECTED IN CLOSED SERIES RELATION WITH THE POLARITY OF SAID SECOND RECTIFIER BEING IN A DIRECTION TO OPPOSE CURRENT FLOW FROM SAID SECOND D-C SOURCE; A PAIR OF OUTPUT TERMINALS; SAID FIRST AND SECOND RECTIFIER BEING CONNECTED IN SERIES WITH SAID PAIR OF OUTPUT TERMINALS
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |