US3221241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical power control apparatus
Assignee: Individual
•
Filing: 1961-06-21
•
Granted: 1965-11-30
•
Expires: 1981-06-21
Abstract
No abstract record available.
Inventors
- 👤 Greenberg Sol
- 👤 Dubin Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:39
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/145; H02M7/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN ADJUSTABLE D.C. POWER SUPPLY ADAPTED TO BE ENERGIZED FROM AN A.C. SOURCE AND TO SUPPLY D.C. LOAD CURRENT TO A LOAD COMPRISING A RECTIFIER PULSE CIRCUIT INCLUDING DIODES CONNECTED TO SAID SOURCE FOR DEVELOPING LARGE AMPLITUDE PULSES OF ONE POLARITY HAVING A PERIODICALLY RELATIVELY SMALLER RESIDUAL VALUE OF OPPOSITE POLARITY, A CONTROLLED RECTIFIER HAVING AN ANODE-CATHODE CIRCUIT ENERGIZED BY SAID PULSES AND ADAPTED TO SUPPLY A D.C. OUTPUT TO OUTPUT TERMINALS, A FILTER CIRCUIT INCLUDING A SERIALLY CONNECTED INDUCTANCE AND A DIODE, SAID DIODE BEING CONNECTED ACROSS SAID PULSE CIRCUIT AND SAID CONTROLLED RECTIFIER, AND A GATE CIRCUIT CONNECTED TO THE GATE OF SAID CONTROLLED RECTIFIER FOR CONTROLLING THE SAME TO THEREBY CONTROL SAID OUTPUT, SAID RELATIVE SMALLER RESIDUAL VALUES OF PULSES SERVING TO ASSIST IN EXTINGUISHING SAID CONTROLLED RECTIFIER.
Claim 2
Dependent Claim
131 words
AN ADJUSTABLE D.C. POWER SUPPLY ADAPTED TO BE ENERGIZED FROM AN A.C. SOURCE AND TO SUPPLY D.C. LOAD CURRENT TO A LOAD COMPRISING A RECTIFIER PULSE CIRCUIT INCLUDING DIODES CONNECTED TO SAID SOURCE FOR DEVELOPING LARGE AMPLITUDE PULSES OF ONE POLARITY HAVING A PERIODICALLY RELATIVELY SMALLER RESIDUAL VALUE OF OPPOSITE POLARITY, A CONTROLLED RECTIFIER HAVING AN ANODE-CATHODE CIRCUIT ENERGIZED BY SAID PULSES AND ADAPTED TO SUPPLY A D.C. OUTPUT TO OUTPUT TERMINALS, A FILTER CIRCUIT INCLUDING A SERIALLY CONNECTED INDUCTANCE AND A DIODE, SAID DIODE BEING CONNECTED ACROSS SAID PULSE CIRCUIT AND SAID CONTROLLED RECTIFIER, AND A GATE CIRCUIT CONNECTED TO THE GATE OF SAID CONTROLLED RECTIFIER FOR CONTROLLING THE SAME TO THEREBY CONTROL SAID OUTPUT, SAID RELATIVE SMALLER RESIDUAL VALUES OF PULSES SERVING TO ASSIST IN EXTINGUISHING SAID CONTROLLED RECTIFIER.
References Cited (Backward Citations)
US2693568A
Cited
US2751549A
Cited
US2698416A
Cited
US2976474A
Cited
US3018432A
Cited
US3005946A
Cited
US3074008A
Cited
US3095534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |