Patent US3265948A successfully refreshed from Google Patents.
US3265948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine control system
Assignee: Motors Liquidation Co
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Filing: 1964-08-31
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Granted: 1966-08-09
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Expires: 1984-08-31
Abstract
No abstract record available.
Inventors
- 👤 William L Sones
- 👤 George A Neyhouse
- 👤 James O Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:03
CPC Classifications
H; H02; H02P; H02P27/00; H02P27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN AN A.C.-INDUCTION MOTOR CONTORL ARRANGEMENT INCLUDING A VOLTAGE SOURCE AND AN A.C.-INDUCTION MOTOR MEANS ENERGIZABLE THEREFROM, SENSING MEANS FOR AT LEAST ONE CONDITION OF OPERATION OF SAID A.C.-INDUCTION MOTOR MEANS AS AN ELECTRICAL SIGNALLING, AMPLIFIER MEANS FOR TRANSFER OF SAID SIGNALLING FROM SAID SENSING MEANS, THE COMBINATION THEREWITH COMPRISING, SEMI-CONDUCTOR STATIC INTEGRATING CONTROL CIRCUITRY BETWEEN SAID AMPLIFIER MEANS AND SAID A.C.-INDUCTION MOTOR MEANS, SAID STATIC INTEGRATING CONTROL CIRCUITRY INCLUDING SILICON-CONTROL RECTIFIER MEANS GATED FROM SAID AMPLIFIER MEANS IN PROPORTION TO SAID SIGNALLING WHEREBY POWER SUPPLY FROM SAID VOLTAGE SOURCE IS INCREASED IN RESPONSE TO DECREASE OF SIGNALLING RESULTING FROM SAID SENSING MEANS AS TO CONDITION OF OPERATION AND THEREBY POWER SUPPLY FROM SAID VOLTAGE SOURCE IS DECREASED IN RESPONSE TO INCREASE OF SIGNALLING RESULTING FROM SAID SENSING MEANS AS TO CONDITION OF OPERATION OF SAID A.C.-INDUCTION MOTOR MEANS, AND RESET BIAS MEANS FOR REPETITION OF CONTROL OF SAID RECTIFIER MEANS.
Claim 2
Dependent Claim
151 words
IN AN A.C.-INDUCTION MOTOR CONTORL ARRANGEMENT INCLUDING A VOLTAGE SOURCE AND AN A.C.-INDUCTION MOTOR MEANS ENERGIZABLE THEREFROM, SENSING MEANS FOR AT LEAST ONE CONDITION OF OPERATION OF SAID A.C.-INDUCTION MOTOR MEANS AS AN ELECTRICAL SIGNALLING, AMPLIFIER MEANS FOR TRANSFER OF SAID SIGNALLING FROM SAID SENSING MEANS, THE COMBINATION THEREWITH COMPRISING, SEMI-CONDUCTOR STATIC INTEGRATING CONTROL CIRCUITRY BETWEEN SAID AMPLIFIER MEANS AND SAID A.C.-INDUCTION MOTOR MEANS, SAID STATIC INTEGRATING CONTROL CIRCUITRY INCLUDING SILICON-CONTROL RECTIFIER MEANS GATED FROM SAID AMPLIFIER MEANS IN PROPORTION TO SAID SIGNALLING WHEREBY POWER SUPPLY FROM SAID VOLTAGE SOURCE IS INCREASED IN RESPONSE TO DECREASE OF SIGNALLING RESULTING FROM SAID SENSING MEANS AS TO CONDITION OF OPERATION AND THEREBY POWER SUPPLY FROM SAID VOLTAGE SOURCE IS DECREASED IN RESPONSE TO INCREASE OF SIGNALLING RESULTING FROM SAID SENSING MEANS AS TO CONDITION OF OPERATION OF SAID A.C.-INDUCTION MOTOR MEANS, AND RESET BIAS MEANS FOR REPETITION OF CONTROL OF SAID RECTIFIER MEANS.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |