Patent US3240949A successfully refreshed from Google Patents.
US3240949A
Expired / Lapsed
US
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Power-supply apparatus with a battery being provided for supplying the load in the event of failure of main rectified supply
Assignee: International Standard Electric Corp
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Filing: 1962-03-13
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Granted: 1966-03-15
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Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 Joachim M Balkow
- 👤 Wolfgang G U Aye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:55
CPC Classifications
H; H04; H04M; H04M19/00; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A POWER CIRCUIT HAVING A MAIN RECTIFIER CONNECTED ACROSS A LOAD, A BATTERY FOR SUPPLYING SAID LOAD IN THE EVENT OF FAILURE OF OUTPUT FROM SAID MAIN RECTIFIER, AND AN ADDITIONAL RECTIFIER FOR CHARGING AND MAINTAINING THE CHARGE ON SAID BATTERY, A FIRST TERMINAL OF SAID BATTERY BEING COUPLED TO A FIRST OUTPUT TERMINAL OF SAID MAIN RECTIFIER AND A SECOND TERMINAL OF SAID BATTERY BEING COUPLED THROUGH SAID ADDITIONAL RECTIFIER TO A SECOND OUTPUT TERMINAL OF SAID MAIN RECTIFIER, A SWITCHING ARRANGEMENT FOR SHORT CIRCUITING SAID ADDITIONAL RECTIFIER IN THE EVENT OF SAID FAILURE OF OUTPUT, SAID SWITCHING ARRANGEMENT COMPRISING A RELAY SWITCH, CONNECTABLE ACROSS SAID ADDITIONAL RECTIFIER, AND A SILICON RECTIFIER CONNECTED ACROSS SAID ADDITIONAL RECTIFIER, SAID SILICON RECTIFIER BEING CONTROLLABLE BY MEANS OF A CONTROL ELECTRODE, SAID CONTROL ELECTRODE BEING ENERGIZABLE BY A VOLTAGE IMPULSE UPON FAILURE OF OUTPUT OF SAID MAIN RECTIFIER, AND THE POLARITY OF VOLTAGE IMPULSE APPLIED TO SAID CONTROL ELECTRODE BEING SUCH AS TO SWITCH SAID SILICON RECTIFIER INTO THE CONDUCTIVE STATE.
Claim 2
Dependent Claim
170 words
IN A POWER CIRCUIT HAVING A MAIN RECTIFIER CONNECTED ACROSS A LOAD, A BATTERY FOR SUPPLYING SAID LOAD IN THE EVENT OF FAILURE OF OUTPUT FROM SAID MAIN RECTIFIER, AND AN ADDITIONAL RECTIFIER FOR CHARGING AND MAINTAINING THE CHARGE ON SAID BATTERY, A FIRST TERMINAL OF SAID BATTERY BEING COUPLED TO A FIRST OUTPUT TERMINAL OF SAID MAIN RECTIFIER AND A SECOND TERMINAL OF SAID BATTERY BEING COUPLED THROUGH SAID ADDITIONAL RECTIFIER TO A SECOND OUTPUT TERMINAL OF SAID MAIN RECTIFIER, A SWITCHING ARRANGEMENT FOR SHORT CIRCUITING SAID ADDITIONAL RECTIFIER IN THE EVENT OF SAID FAILURE OF OUTPUT, SAID SWITCHING ARRANGEMENT COMPRISING A RELAY SWITCH, CONNECTABLE ACROSS SAID ADDITIONAL RECTIFIER, AND A SILICON RECTIFIER CONNECTED ACROSS SAID ADDITIONAL RECTIFIER, SAID SILICON RECTIFIER BEING CONTROLLABLE BY MEANS OF A CONTROL ELECTRODE, SAID CONTROL ELECTRODE BEING ENERGIZABLE BY A VOLTAGE IMPULSE UPON FAILURE OF OUTPUT OF SAID MAIN RECTIFIER, AND THE POLARITY OF VOLTAGE IMPULSE APPLIED TO SAID CONTROL ELECTRODE BEING SUCH AS TO SWITCH SAID SILICON RECTIFIER INTO THE CONDUCTIVE STATE.
References Cited (Backward Citations)
US1874374A
Cited
US2920240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |