Patent US3284689A successfully refreshed from Google Patents.
US3284689A
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Dynamo-electric machine control apparatus employing pulses
Assignee: Westinghouse Electric Corp
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Filing: 1963-06-20
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Granted: 1966-11-08
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 Rosa John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:32
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/08; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A SYSTEM FOR CONTROLLING AN ELECTRODYNAMIC MACHINE TO REGULATE A CONDITION WHICH IS RESPONSIVE TO SAID MACHINE, A SOURCE OF POWER FOR ENERGIZING SAID MACHINE, FIRST PULSE GENERATING MEANS WHICH PRODUCES RESPECTIVE PULSE TRAINS OF ONE OR THE OPPOSITE POLARITY IN RESPONSE TO AND DEPENDING ON THE DIRECTION OF DEVIATION OF SAID CONDITION FROM A PREDETERMINED NORM, SECOND PULSE GENERATING MEANS FOR GENERATING A TRAIN OF CONTROL PULSES IN RESPONSE TO SAID PULSE TRAIN OF ONE POLARITY, THIRD PULSE GENERATING MEANS FOR GENERATING A TRAIN OF CONTROL PULSES IN RESPONSE TO SAID PULSE TRAIN OF OPPOSITE POLARITY, EACH OF SAID SECOND AND THIRD PULSE GENERATING MEANS HAVING AN INPUT CIRCUIT COUPLED TO SAID FIRST PULSE GENERATING MEANS AND AN OUTPUT CIRCUIT CONTROLLED BY THE LATTER INPUT CIRCUIT, REVERSIBLE SWITCH MEANS HAVING FIRST AND SECOND MODES OF OPERATION WHICH RESPECTIVELY CONNECT SAID POWER
Claim 2
Dependent Claim
143 words
IN A SYSTEM FOR CONTROLLING AN ELECTRODYNAMIC MACHINE TO REGULATE A CONDITION WHICH IS RESPONSIVE TO SAID MACHINE, A SOURCE OF POWER FOR ENERGIZING SAID MACHINE, FIRST PULSE GENERATING MEANS WHICH PRODUCES RESPECTIVE PULSE TRAINS OF ONE OR THE OPPOSITE POLARITY IN RESPONSE TO AND DEPENDING ON THE DIRECTION OF DEVIATION OF SAID CONDITION FROM A PREDETERMINED NORM, SECOND PULSE GENERATING MEANS FOR GENERATING A TRAIN OF CONTROL PULSES IN RESPONSE TO SAID PULSE TRAIN OF ONE POLARITY, THIRD PULSE GENERATING MEANS FOR GENERATING A TRAIN OF CONTROL PULSES IN RESPONSE TO SAID PULSE TRAIN OF OPPOSITE POLARITY, EACH OF SAID SECOND AND THIRD PULSE GENERATING MEANS HAVING AN INPUT CIRCUIT COUPLED TO SAID FIRST PULSE GENERATING MEANS AND AN OUTPUT CIRCUIT CONTROLLED BY THE LATTER INPUT CIRCUIT, REVERSIBLE SWITCH MEANS HAVING FIRST AND SECOND MODES OF OPERATION WHICH RESPECTIVELY CONNECT SAID POWER
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |