Patent US3333129A successfully refreshed from Google Patents.
US3333129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-starting synchronous reaction motor
Assignee: Amphenol Corp
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Filing: 1964-09-14
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Granted: 1967-07-25
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Kohlhagen Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:51
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/118; H02K7/1185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A SYNCHRONOUS REACTION MOTOR, THE COMBINATION WITH A FIELD INCLUDING FIELD POLES ARRANGED CIRCULARLY ABOUT AN AXIS, A COIL ACTING WHEN ENERGIZED TO EXCITE SAID FIELD, AND A PERMANENT-MAGNET ROTOR WITH POLES OF OPPOSITE POLARITIES MOUNTED FOR ROTATION ABOUT SAID AXIS, OF A ROTOR START-ASSISTING DEVICE COMPRISING MEANS PROVIDING FOR MOVABILITY OF SAID ROTOR IN THE DIRECTION OF SAID AXIS WITH FREEDOM TO TURN IN ANY AXIAL POSITION, AND MEANS REACTING, ON COIL REENERGIZATION AFTER A ROTOR STOP, WITH FIELD MAGNETIC FORCES TO AXIALLY VIBRATE THE NON-STARTED ROTOR WITHIN MAGNETIC REACH OF SAID FIELD POLES.
Claim 2
Dependent Claim
96 words
IN A SYNCHRONOUS REACTION MOTOR, THE COMBINATION WITH A FIELD INCLUDING FIELD POLES ARRANGED CIRCULARLY ABOUT AN AXIS, A COIL ACTING WHEN ENERGIZED TO EXCITE SAID FIELD, AND A PERMANENT-MAGNET ROTOR WITH POLES OF OPPOSITE POLARITIES MOUNTED FOR ROTATION ABOUT SAID AXIS, OF A ROTOR START-ASSISTING DEVICE COMPRISING MEANS PROVIDING FOR MOVABILITY OF SAID ROTOR IN THE DIRECTION OF SAID AXIS WITH FREEDOM TO TURN IN ANY AXIAL POSITION, AND MEANS REACTING, ON COIL REENERGIZATION AFTER A ROTOR STOP, WITH FIELD MAGNETIC FORCES TO AXIALLY VIBRATE THE NON-STARTED ROTOR WITHIN MAGNETIC REACH OF SAID FIELD POLES.
References Cited (Backward Citations)
US2153775A
Cited
US3204137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |