Patent US2423057A successfully refreshed from Google Patents.
US3328656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating motor control system for motors having high q solenoid coils
Assignee: Individual
•
Filing: 1964-04-24
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Granted: 1967-06-27
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Expires: 1984-04-24
Abstract
No abstract record available.
Inventors
- 👤 Gene M Dotson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:57
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/06; H02K7/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN AN ELECTRICALLY OPERATED ENGINE HAVING A CRANKSHAFT ADAPTED TO BE DRIVEN AT A SPEED WITHIN A PREDETERMINED OPERATING SPEED RANGE, A SOLENOID PLUNGER OPERATIVELY CONNECTED TO SAID CRANKSHAFT, A COIL ASSEMBLY SLIDABLY MOUNTING SAID PLUNGER HAVING A PLURALITY OF INDUCTIVE WINDINGS CONNECTED IN PARALLEL, A SOURCE OF VOLTAGE, AND CAM-OPERATED SWITCH MEANS DRIVEN BY SAID CRANKSHAFT AND OPERATIVELY CONNECTING SAID SOURCE OF VOLTAGE TO THE INDUCTIVE WINDINGS FOR SUPPLY OF ENERGIZING CURRENT THERETO AT A FREQUENCY (F) CORRESPONDING TO SAID OPERATING SPEED RANGE OF THE CRANKSHAFT, EACH OF SAID INDUCTIVE WINDINGS HAVING AN INDUCTANCE VALUE (L), AN EQUIVALENT SERIES COIL RESISTANCE (RC) AND AN EQUIVALENT SHUNT CORE-LOSS RESISTANCE (RI), WHERE
Claim 2
Dependent Claim
111 words
IN AN ELECTRICALLY OPERATED ENGINE HAVING A CRANKSHAFT ADAPTED TO BE DRIVEN AT A SPEED WITHIN A PREDETERMINED OPERATING SPEED RANGE, A SOLENOID PLUNGER OPERATIVELY CONNECTED TO SAID CRANKSHAFT, A COIL ASSEMBLY SLIDABLY MOUNTING SAID PLUNGER HAVING A PLURALITY OF INDUCTIVE WINDINGS CONNECTED IN PARALLEL, A SOURCE OF VOLTAGE, AND CAM-OPERATED SWITCH MEANS DRIVEN BY SAID CRANKSHAFT AND OPERATIVELY CONNECTING SAID SOURCE OF VOLTAGE TO THE INDUCTIVE WINDINGS FOR SUPPLY OF ENERGIZING CURRENT THERETO AT A FREQUENCY (F) CORRESPONDING TO SAID OPERATING SPEED RANGE OF THE CRANKSHAFT, EACH OF SAID INDUCTIVE WINDINGS HAVING AN INDUCTANCE VALUE (L), AN EQUIVALENT SERIES COIL RESISTANCE (RC) AND AN EQUIVALENT SHUNT CORE-LOSS RESISTANCE (RI), WHERE
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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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |