Patent US3309602A successfully refreshed from Google Patents.
US3309602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current controllers
Assignee: Unisys Corp
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Filing: 1963-07-18
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Granted: 1967-03-14
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Expires: 1983-07-18
Abstract
No abstract record available.
Inventors
- 👤 Louis J Euvino
- 👤 Robert L Zinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:39
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/08; H02M1/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN COMBINATION, (A) AN ALTERNATING CURRENT SUPPLY, (B) A SILICON CONTROLLED RECTIFIER TO CONDUCT RECTIFIED CURRENT FROM THE SUPPLY TO A LOAD, (C) MEANS TO SENSE THE INSTANTANEOUS VALUE OF THE OUTPUT OF THE SUPPLY, (D) A MONOSTABLE MULTIVIBRATOR, (E) MEANS TO TRIGGER THE MULTIVIBRATOR INTO THE QUASISTABLE STATE WHEN THE INSTANTANEOUS VALUE OF THE OUTPUT OF THE SUPPLY APPROACHES ZERO, AND (F) MEANS TO SUPPLY A TRIGGERING VOLTAGE TO THE SILICON CONTROLLED RECTIFIER WHEN THE MULTIVIBRATOR IS IN THE QUASI-STABLE STATE.
Claim 2
Dependent Claim
82 words
IN COMBINATION, (A) AN ALTERNATING CURRENT SUPPLY, (B) A SILICON CONTROLLED RECTIFIER TO CONDUCT RECTIFIED CURRENT FROM THE SUPPLY TO A LOAD, (C) MEANS TO SENSE THE INSTANTANEOUS VALUE OF THE OUTPUT OF THE SUPPLY, (D) A MONOSTABLE MULTIVIBRATOR, (E) MEANS TO TRIGGER THE MULTIVIBRATOR INTO THE QUASISTABLE STATE WHEN THE INSTANTANEOUS VALUE OF THE OUTPUT OF THE SUPPLY APPROACHES ZERO, AND (F) MEANS TO SUPPLY A TRIGGERING VOLTAGE TO THE SILICON CONTROLLED RECTIFIER WHEN THE MULTIVIBRATOR IS IN THE QUASI-STABLE STATE.
References Cited (Backward Citations)
US3158799A
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US3070739A
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US3204113A
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US3214677A
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US3218542A
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US3195029A
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US3155847A
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US3211929A
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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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |