Patent US3302045A successfully refreshed from Google Patents.
US3302045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrator motor with stepped rotary output
Assignee: Duracell Inc USA
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Filing: 1964-06-15
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Granted: 1967-01-31
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Gianni A Dotto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:41
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/06; H02K7/065; B; B06; B06B; B06B3/00; F; F16; F16D; F16D41/00; F16D41/06; F16D41/064; F16D41/066; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553; Y10T74/1555; Y10T74/1556
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
269 words
A SLOW, CONSTANT SPEED ELECTRIC MOTOR COMPRISING: AN APERTURED COIL MEANS ENERGIZED BY PULSATING CURRENT SO AS TO PROVIDE A SOURCE OF PULSATING MAGNETIC FLUX, SUBSTANTIALLY O-SHAPED PERMANENT MAGNET MEANS ABUTTING EACH EXTREMITY OF SAID COIL MEANS SO AS TO PROVIDE A SOURCE OF STEADY MAGNETIC FLUX, EACH OF SAID PERMANENT MAGNET MEANS INCLUDING TWO SUBSTANTIALLY U-SHAPED MAGNETS HAVING POLE FACES IN SPACED PARALLEL RELATIONSHIP, SAID TWO U-SHAPED MAGNETS JOINED TO FORM SAID SUBSTANTIALLY O-SHAPED PERMANENT MAGNET MEANS HAVING ABUTTING NORTHSOUTH POLES AND POLES OF OPPOSITE POLARITY IN SPACED PARALLEL RELATIONSHIP, AT LEAST TWO ARMATURES HAVING THEIR FREE ENDS PROJECTING THROUGH SAID APERTURE OF SAID COIL MEANS AND SAID APERTURES OF SAID PERMANENT MAGNET MEANS MAGNETICALLY COUPLING SAID FREE END OF SAID ARMATURES TO SAID COIL MEANS AND TO SAID PERMANENT MAGNET MEANS, INTERACTION OF SAID PULSATING MAGNETIC FLUX OF SAID COIL MEANS AND OF SAID STEADY MAGNETIC FLUX OF SAID PERMANENT MAGNET MEANS CAUSING SAID FREE ENDS OF SAID ARMATURES TO VIBRATE WITH LATERAL VIBRATORY MOTION WITHIN SAID APERTURE OF SAID COIL MEANS AND SAID APERTURES OF SAID PERMANENT MAGNET MEANS, A FIRST ONE-WAY CLUTCH MEANS CONNECTED TO AN EXTREMITY OF ONE OF SAID ARMATURES OPPOSITE SAID FREE END THEREOF, A SECOND ONE-WAY CLUTCH MEANS CONNECTED TO AN EXTREMITY OF THE OTHER ARMATURE OPPOSITE SAID FREE END THEREOF, A SHAFT COUPLED TO SAID FIRST AND SECOND CLUTCH MEANS, SAID FIRST AND SAID SECOND CLUTCH MEANS TRANSLATING SAID LATERAL VIBRATORY MOTION OF SAID ARMATURES TO UNIDIRECTIONAL MOTION THEREBY ROTATING SAID SHAFT IN A FIRST DIRECTION AT A CONSTANT SPEED AND PREVENTING ROTATION OF SAID SHAFT IN A SECOND DIRECTION.
Claim 2
Dependent Claim
269 words
A SLOW, CONSTANT SPEED ELECTRIC MOTOR COMPRISING: AN APERTURED COIL MEANS ENERGIZED BY PULSATING CURRENT SO AS TO PROVIDE A SOURCE OF PULSATING MAGNETIC FLUX, SUBSTANTIALLY O-SHAPED PERMANENT MAGNET MEANS ABUTTING EACH EXTREMITY OF SAID COIL MEANS SO AS TO PROVIDE A SOURCE OF STEADY MAGNETIC FLUX, EACH OF SAID PERMANENT MAGNET MEANS INCLUDING TWO SUBSTANTIALLY U-SHAPED MAGNETS HAVING POLE FACES IN SPACED PARALLEL RELATIONSHIP, SAID TWO U-SHAPED MAGNETS JOINED TO FORM SAID SUBSTANTIALLY O-SHAPED PERMANENT MAGNET MEANS HAVING ABUTTING NORTHSOUTH POLES AND POLES OF OPPOSITE POLARITY IN SPACED PARALLEL RELATIONSHIP, AT LEAST TWO ARMATURES HAVING THEIR FREE ENDS PROJECTING THROUGH SAID APERTURE OF SAID COIL MEANS AND SAID APERTURES OF SAID PERMANENT MAGNET MEANS MAGNETICALLY COUPLING SAID FREE END OF SAID ARMATURES TO SAID COIL MEANS AND TO SAID PERMANENT MAGNET MEANS, INTERACTION OF SAID PULSATING MAGNETIC FLUX OF SAID COIL MEANS AND OF SAID STEADY MAGNETIC FLUX OF SAID PERMANENT MAGNET MEANS CAUSING SAID FREE ENDS OF SAID ARMATURES TO VIBRATE WITH LATERAL VIBRATORY MOTION WITHIN SAID APERTURE OF SAID COIL MEANS AND SAID APERTURES OF SAID PERMANENT MAGNET MEANS, A FIRST ONE-WAY CLUTCH MEANS CONNECTED TO AN EXTREMITY OF ONE OF SAID ARMATURES OPPOSITE SAID FREE END THEREOF, A SECOND ONE-WAY CLUTCH MEANS CONNECTED TO AN EXTREMITY OF THE OTHER ARMATURE OPPOSITE SAID FREE END THEREOF, A SHAFT COUPLED TO SAID FIRST AND SECOND CLUTCH MEANS, SAID FIRST AND SAID SECOND CLUTCH MEANS TRANSLATING SAID LATERAL VIBRATORY MOTION OF SAID ARMATURES TO UNIDIRECTIONAL MOTION THEREBY ROTATING SAID SHAFT IN A FIRST DIRECTION AT A CONSTANT SPEED AND PREVENTING ROTATION OF SAID SHAFT IN A SECOND DIRECTION.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |