US3287623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator
Assignee: Revvity Health Sciences Inc
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Filing: 1963-07-29
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Granted: 1966-11-22
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 James P Valancius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44; G05F1/445
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A VOLTAGE REGULATOR HAVING AN INPUT CIRCUIT ADAPTED TO BE CONNECTED TO AN A.-C. SUPPLY AND HAVING AN OUTPUT CIRCUIT, THE COMBINATION WHICH COMPRISES A PAIR OF TRANSISTORS HAVING THEIR EMITTER-COLLECTOR CIRCUITS CONNECTED IN BUCKING RELATIONSHIP BETWEEN THE INPUT AND OUTPUT CIRCUITS FOR REGULATING THE EFFECT OF THE A.-C. SUPPLY SO THAT AN OUTPUT VOLTAGE IS PROVIDED IN THE OUTPUT CIRCUIT HAVING AN INSTANTANEOUS AMPLITUDE DETERMINED BY THE IMPEDANCES OF THE TRANSISTORS, MEANS FOR ALLOWING CURRENT TO BYPASS ONE TRANSISTOR WHEN THE OTHER IS CONDUCTING, AND FEEDBACK MEANS ASSOCIATED WITH THE OUTPUT CIRCUIT FOR CONTROLLING THE IMPEDANCES OF THE TRANSISTORS IN ACCORDANCE WITH THE INSTANTANEOUS OUTPUT VOLTAGE PROVIDED, THE TRANSISTORS LIMITING THE OUTPUT TO A DESIRED LEVEL IN RESPONSE TO OPERATION OF THE FEEDBACK MEANS.
Claim 2
Dependent Claim
126 words
IN A VOLTAGE REGULATOR HAVING AN INPUT CIRCUIT ADAPTED TO BE CONNECTED TO AN A.-C. SUPPLY AND HAVING AN OUTPUT CIRCUIT, THE COMBINATION WHICH COMPRISES A PAIR OF TRANSISTORS HAVING THEIR EMITTER-COLLECTOR CIRCUITS CONNECTED IN BUCKING RELATIONSHIP BETWEEN THE INPUT AND OUTPUT CIRCUITS FOR REGULATING THE EFFECT OF THE A.-C. SUPPLY SO THAT AN OUTPUT VOLTAGE IS PROVIDED IN THE OUTPUT CIRCUIT HAVING AN INSTANTANEOUS AMPLITUDE DETERMINED BY THE IMPEDANCES OF THE TRANSISTORS, MEANS FOR ALLOWING CURRENT TO BYPASS ONE TRANSISTOR WHEN THE OTHER IS CONDUCTING, AND FEEDBACK MEANS ASSOCIATED WITH THE OUTPUT CIRCUIT FOR CONTROLLING THE IMPEDANCES OF THE TRANSISTORS IN ACCORDANCE WITH THE INSTANTANEOUS OUTPUT VOLTAGE PROVIDED, THE TRANSISTORS LIMITING THE OUTPUT TO A DESIRED LEVEL IN RESPONSE TO OPERATION OF THE FEEDBACK 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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |