US3167378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo motor transistor control circuit
Assignee: F L MOSELEY CO
•
Filing: 1962-09-24
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Granted: 1965-01-26
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Expires: 1982-09-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Otto S Talle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:41
CPC Classifications
G; G01; G01R; G01R17/00; G05; G05D; G05D3/00; G05D3/12; G05D3/14; G05D3/1418
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A CIRCUIT FOR CONTROLLING THE DIRECTION OF ROTATION OF AN ELECTRIC MOTOR COMPRISING A REVERSIBLE DIRECT-CURRENT MOTOR, AN INDUCTIVE WINDING ADAPTED TO BE ENERGIZED BY ALTERNATING CURRENT, A RECTIFIER BRIDGE HAVING FOUR TERMINALS, TWO OF SAID TERMINALS BEING CONNECTED IN SERIES WITH SAID WINDING AND SAID MOTOR, AN ELECTRONIC SWITCH CONNECTED BETWEEN THE OTHER TWO TERMINALS OF SAID BRIDGE, AND AN ERROR SIGNAL SOURCE COUPLED TO SAID SWITCH FOR RENDERING SAID SWITCH CONDUCTIVE DURING SELECTED HALF CYCLES OF THE ALTERNATING CURRENT TO PERMIT CURRENT TO FLOW THROUGH SAID WINDING, MOTOR, SWITCH AND TWO ARMS OF SAID BRIDGE TO ENERGIZE SAID MOTOR TO ROTATE IN A PREDETERMINED DIRECTION.
Claim 2
Dependent Claim
107 words
A CIRCUIT FOR CONTROLLING THE DIRECTION OF ROTATION OF AN ELECTRIC MOTOR COMPRISING A REVERSIBLE DIRECT-CURRENT MOTOR, AN INDUCTIVE WINDING ADAPTED TO BE ENERGIZED BY ALTERNATING CURRENT, A RECTIFIER BRIDGE HAVING FOUR TERMINALS, TWO OF SAID TERMINALS BEING CONNECTED IN SERIES WITH SAID WINDING AND SAID MOTOR, AN ELECTRONIC SWITCH CONNECTED BETWEEN THE OTHER TWO TERMINALS OF SAID BRIDGE, AND AN ERROR SIGNAL SOURCE COUPLED TO SAID SWITCH FOR RENDERING SAID SWITCH CONDUCTIVE DURING SELECTED HALF CYCLES OF THE ALTERNATING CURRENT TO PERMIT CURRENT TO FLOW THROUGH SAID WINDING, MOTOR, SWITCH AND TWO ARMS OF SAID BRIDGE TO ENERGIZE SAID MOTOR TO ROTATE IN A PREDETERMINED DIRECTION.
References Cited (Backward Citations)
US2464708A
Cited
US2656498A
Cited
US2913654A
Cited
US2888622A
Cited
US2973238A
Cited
US3032697A
Cited
US3066297A
Cited
US3095254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |