US3345549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier bridge adjustable alternating current voltage control
Assignee: Louis Allis Co
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Filing: 1965-03-09
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Granted: 1967-10-03
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Expires: 1985-03-09
Abstract
No abstract record available.
Inventors
- 👤 John G Hauser
- 👤 John D Steadman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:36
CPC Classifications
H; H02; H02P; H02P27/00; H02P27/02; H02P27/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN ADJUSTABLE VOLTAGE CONTROL FOR PROVIDING A VARIABLE BIPOLARITY POLYPHASE VOLTAGE OF ANY DESIRED MAGNITUDE TO A POLYPHASE LOAD CONNECTED BETWEEN THE CONRTOL AND A SOURCE OF POLYPHASE ALTERNATING CURRENT VOLTAGE, SAID LOAD HAVING A PHASE VOLTAGE CONDUCTOR FOR EACH PHASE OF SAID POLYPHASE VOLTAGE EXTENDING BETWEEN THE SOURCE AND THE CONTROL, SAID VOLTAGE BEING PROVIDED BY CONNECTING THE PHASE VOLTAGE CONDUCTORS IN THE CONTROL SO AS TO PERMIT THE ALTERNATING CURRENT VOLTAGE TO BE APPLIED TO THE LOAD, SAID CONTROL COMPRISING: A RECTIFIER BRIDGE INCLUDING A PAIR OF CONTROLLED RECTIFIERS CONNECTED TO EACH PHASE CONDUCTOR OF THE LOAD, THE CONDUCTION STATE OF SAID CONTROLLED RECTIFIERS BEING SEQUENTIALLY CONTROLLABLE TO CONNECT THE CONDUCTORS TO APPLY SELECTED PORTIONS OF THE ALTERNATING CURRENT VOLTAGE OF EITHER POLARITY TO THE LOAD TO FORM THE VARIABLE BIPOLARITY POLYPHASE VOLTAGE OF THE DESIRED MAGNITUDE;
Claim 2
Dependent Claim
139 words
AN ADJUSTABLE VOLTAGE CONTROL FOR PROVIDING A VARIABLE BIPOLARITY POLYPHASE VOLTAGE OF ANY DESIRED MAGNITUDE TO A POLYPHASE LOAD CONNECTED BETWEEN THE CONRTOL AND A SOURCE OF POLYPHASE ALTERNATING CURRENT VOLTAGE, SAID LOAD HAVING A PHASE VOLTAGE CONDUCTOR FOR EACH PHASE OF SAID POLYPHASE VOLTAGE EXTENDING BETWEEN THE SOURCE AND THE CONTROL, SAID VOLTAGE BEING PROVIDED BY CONNECTING THE PHASE VOLTAGE CONDUCTORS IN THE CONTROL SO AS TO PERMIT THE ALTERNATING CURRENT VOLTAGE TO BE APPLIED TO THE LOAD, SAID CONTROL COMPRISING: A RECTIFIER BRIDGE INCLUDING A PAIR OF CONTROLLED RECTIFIERS CONNECTED TO EACH PHASE CONDUCTOR OF THE LOAD, THE CONDUCTION STATE OF SAID CONTROLLED RECTIFIERS BEING SEQUENTIALLY CONTROLLABLE TO CONNECT THE CONDUCTORS TO APPLY SELECTED PORTIONS OF THE ALTERNATING CURRENT VOLTAGE OF EITHER POLARITY TO THE LOAD TO FORM THE VARIABLE BIPOLARITY POLYPHASE VOLTAGE OF THE DESIRED MAGNITUDE;
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) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |