US3199011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saturable core pulse width motor control apparatus
Assignee: Honeywell Inc
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Filing: 1961-05-31
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Granted: 1965-08-03
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Sikorra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:10
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/5383; H02M7/53832; H02M7/53835; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/24; H02P7/28; H02P7/285; H02P7/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
APPARATUS OF THE CLASS DESCIRBED COMPRISING: FIRST AND SECOND TRANSISTORS EACH HAVING A COLLECTOR ELECTRODE, A BASE ELECTRODE, AND AN EMITTER ELECTRODE; A SATURABLE TRANSFORMER HAVING FIRST, SECOND, THIRD AND FOURTH WINDINGS; RESISTANCE MEANS; MEANS CONNECTING SAID FIRST WINDING, SAID RESISTANCE MEANS AND SAID SECOND WINDING IN SERIES RELATIONSHIP ACROSS SAID EMITTER ELECTRODES; FIRST AND SECOND SERVOS EACH HAVING A CONTROL WINDING; MEANS CONNECTING THE CONTROL WINDINGS OF SIAD FIRST AND SECOND SERVOS IN SERIES ACROSS SAID EMITTER ELECTRODES; A SOURCE OF ENERGIZING POTENTIAL; MEANS CONNECTING SAID POTENTIAL SOURCE FROM A JUNCTION INTERMEDIATE SAID CONTROL WINDINGS TO THE COLLECTOR ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS; MEANS CONNECTING SAID THIRD AND FOURTH WINDINGS FROM THE EMITTER TO BASE ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS RESPECTIVELY; AND MEANS ADAPTED TO CONNECT A SOURCE OF CONTROL SIGNALS ACROSS SAID RESISTANCE MEANS.
Claim 2
Dependent Claim
140 words
APPARATUS OF THE CLASS DESCIRBED COMPRISING: FIRST AND SECOND TRANSISTORS EACH HAVING A COLLECTOR ELECTRODE, A BASE ELECTRODE, AND AN EMITTER ELECTRODE; A SATURABLE TRANSFORMER HAVING FIRST, SECOND, THIRD AND FOURTH WINDINGS; RESISTANCE MEANS; MEANS CONNECTING SAID FIRST WINDING, SAID RESISTANCE MEANS AND SAID SECOND WINDING IN SERIES RELATIONSHIP ACROSS SAID EMITTER ELECTRODES; FIRST AND SECOND SERVOS EACH HAVING A CONTROL WINDING; MEANS CONNECTING THE CONTROL WINDINGS OF SIAD FIRST AND SECOND SERVOS IN SERIES ACROSS SAID EMITTER ELECTRODES; A SOURCE OF ENERGIZING POTENTIAL; MEANS CONNECTING SAID POTENTIAL SOURCE FROM A JUNCTION INTERMEDIATE SAID CONTROL WINDINGS TO THE COLLECTOR ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS; MEANS CONNECTING SAID THIRD AND FOURTH WINDINGS FROM THE EMITTER TO BASE ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS RESPECTIVELY; AND MEANS ADAPTED TO CONNECT A SOURCE OF CONTROL SIGNALS ACROSS SAID RESISTANCE MEANS.
References Cited (Backward Citations)
US2698392A
Cited
GB827729A
Cited
US2814769A
Cited
US2873371A
Cited
US2886763A
Cited
US2886764A
Cited
US2849614A
Cited
US2994840A
Cited
US3083327A
Cited
US3003096A
Cited
US3090897A
Cited
US3079539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |