US3393354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic motor control system employing pulse generating means
Assignee: Warner and Swasey Co
•
Filing: 1967-11-01
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Granted: 1968-07-16
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Expires: 1987-11-01
Abstract
No abstract record available.
Inventors
- 👤 Iv Paul H Gaither
- 👤 Lutz Fritz Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:03
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/29; H02P7/2913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN AN ELECTRONIC CONTROL SYSTEM WHEREIN AN ELECTRONIC SWITCHING DEVICE CONNECTS A LOAD AND A POWER SOURCE FOR SUPPLYING A VARIABLE CURRENT TO THE LOAD AND IS TO BE RENDERED CONDUCTIVE IN RESPONSE TO A TRIGGERING SIGNAL AT A PARTICUALR POINT IN THE CYCLE OF A CYCLICALLY VARYING VOLTAGE WAVE IMPRESSED THEREACROSS, THE PARTICULAR POINT IN THE CYCLE AT WHICH THE DEVICE IS RENDERED CONDUCTIVE BEING VARIABLE TO VARY THE CURRENT SUPPLIED TO THE LOAD, AN ELECTRONIC GATE MEANS HAVING A PLURALITY OF INPUT ELEMENTS AND AN OUTPUT ELEMENT CONNECTED TO THE VALVE DEVICE TO TRIGGER THE LATTER IN RESPONSE TO A PULSE ON THE OUTPUT ELEMENT, PULSE GENERATING MEANS HAVING AN OUTPUT CONNECTED TO ONE INPUT OF SAID GATING MEANS FOR APPLYING THERETO A TRAIN OF PULSES, CIRCUIT MEANS PROVIDING A CYCLICALLY VARYING ANALOGUE CONTROL SIGNAL WHICH IS TO EFFECT
Claim 2
Dependent Claim
141 words
IN AN ELECTRONIC CONTROL SYSTEM WHEREIN AN ELECTRONIC SWITCHING DEVICE CONNECTS A LOAD AND A POWER SOURCE FOR SUPPLYING A VARIABLE CURRENT TO THE LOAD AND IS TO BE RENDERED CONDUCTIVE IN RESPONSE TO A TRIGGERING SIGNAL AT A PARTICUALR POINT IN THE CYCLE OF A CYCLICALLY VARYING VOLTAGE WAVE IMPRESSED THEREACROSS, THE PARTICULAR POINT IN THE CYCLE AT WHICH THE DEVICE IS RENDERED CONDUCTIVE BEING VARIABLE TO VARY THE CURRENT SUPPLIED TO THE LOAD, AN ELECTRONIC GATE MEANS HAVING A PLURALITY OF INPUT ELEMENTS AND AN OUTPUT ELEMENT CONNECTED TO THE VALVE DEVICE TO TRIGGER THE LATTER IN RESPONSE TO A PULSE ON THE OUTPUT ELEMENT, PULSE GENERATING MEANS HAVING AN OUTPUT CONNECTED TO ONE INPUT OF SAID GATING MEANS FOR APPLYING THERETO A TRAIN OF PULSES, CIRCUIT MEANS PROVIDING A CYCLICALLY VARYING ANALOGUE CONTROL SIGNAL WHICH IS TO EFFECT
References Cited (Backward Citations)
US2803793A
Cited
US3308307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |