Patent US3142012A successfully refreshed from Google Patents.
US3142012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery powered synchronous motor
Assignee: General Electric Co
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Filing: 1962-07-30
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Granted: 1964-07-21
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Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Petrides Christie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:55
CPC Classifications
G; G04; G04C; G04C15/00; G04C10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A ROTATABLE SYNCHRONOUS MOTOR AND OSCILLATING POWER SUPPLY THEREFOR COMPRISING A PERMANENT MAGNET ROTOR, STATOR MEANS POSITIONED IN FLUX INDUCING RELATION WITH THE ROTOR, A CONTINUOUS WINDING WOUND ON THE STATOR HAVING A MAIN COIL PORTION AND A MINOR COIL PORTION, A SOURCE OF ELECTRICAL ENERGY, ELECTRICAL TRANSLATING MEANS HAVING ITS OUTPUT SERIALLY CONNECTED TO SAID SOURCE AND THE MAIN COIL PORTION AND HAVING ITS INPUT SERIALLY CONNECTED TO THE MINOR COIL PORTION, A PICKUP COIL CONNECTED TO THE INPUT OF SAID ELECTRICAL TRANSLATING MEANS TO SHUNT SAID MINOR COIL PORTION, AND A MECHANICAL OSCILLATOR HAVING A NATURAL FREQUENCY OF OSCILLATION POSITIONED IN FLUX INDUCING RELATION WITH SAID PICKUP COIL, SAID MECHANICAL OSCILLATOR BEING ARRANGED TO SUPPLY A SIGNAL TO SAID ELECTRICAL TRANSLATING MEANS TO SYNCHRONIZE SAID MOTOR IN ACCORDANCE WITH THE FREQUENCY OF SAID MECHANICAL OSCILLATOR.
Claim 2
Dependent Claim
137 words
A ROTATABLE SYNCHRONOUS MOTOR AND OSCILLATING POWER SUPPLY THEREFOR COMPRISING A PERMANENT MAGNET ROTOR, STATOR MEANS POSITIONED IN FLUX INDUCING RELATION WITH THE ROTOR, A CONTINUOUS WINDING WOUND ON THE STATOR HAVING A MAIN COIL PORTION AND A MINOR COIL PORTION, A SOURCE OF ELECTRICAL ENERGY, ELECTRICAL TRANSLATING MEANS HAVING ITS OUTPUT SERIALLY CONNECTED TO SAID SOURCE AND THE MAIN COIL PORTION AND HAVING ITS INPUT SERIALLY CONNECTED TO THE MINOR COIL PORTION, A PICKUP COIL CONNECTED TO THE INPUT OF SAID ELECTRICAL TRANSLATING MEANS TO SHUNT SAID MINOR COIL PORTION, AND A MECHANICAL OSCILLATOR HAVING A NATURAL FREQUENCY OF OSCILLATION POSITIONED IN FLUX INDUCING RELATION WITH SAID PICKUP COIL, SAID MECHANICAL OSCILLATOR BEING ARRANGED TO SUPPLY A SIGNAL TO SAID ELECTRICAL TRANSLATING MEANS TO SYNCHRONIZE SAID MOTOR IN ACCORDANCE WITH THE FREQUENCY OF SAID MECHANICAL OSCILLATOR.
References Cited (Backward Citations)
US2890399A
Cited
US2994023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |