Patent US3893883A successfully refreshed from Google Patents.
Patent US3089069A successfully refreshed from Google Patents.
US3089069A
Expired / Lapsed
US
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Step motor and controls
Assignee: INDUSTRIAL CONTROLS CORP
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Filing: 1957-12-24
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Granted: 1963-05-07
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Expires: 1977-12-24
Abstract
No abstract record available.
Inventors
- 👤 Albert G Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:45
CPC Classifications
H; H02; H02K; H02K37/00; H02K37/22; H02K37/02; H02K37/04; H02P; H02P8/00; H02P8/14; H02P8/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN ELECTRICAL STEP MOTOR COMPRISING A PLURALITY OF STATORS SPACED AROUND A COMMON AXIS, ROTOR MEANS FOR EACH OF SAID STATORS ROTATABLE ABOUT SAID AXIS, SAID STATORS AND ROTORS HAVING ADJACENT GROUPS OF MAGNETIZABLE TEETH, MEANS FOR SUPPLYING A TOOTH ENERGIZING IMPULSE TO SAID STATORS IN SEQUENCE TO MAGNETIZE SAID TEETH, AND MEANS FOR VARYING THE EFFECT OF SAID ENERGIZING IMPULSES ON THE TEETH OF AT LEAST ONE OF SAID ROTORS WITH RESPECT TO THE EFFECT ON AT LEAST ONE OTHER OF SAID ROTORS TO EQUALIZE THE ANGULAR STEP MOVEMENTS OF SAID ROTOR MEANS.
Claim 2
Dependent Claim
94 words
AN ELECTRICAL STEP MOTOR COMPRISING A PLURALITY OF STATORS SPACED AROUND A COMMON AXIS, ROTOR MEANS FOR EACH OF SAID STATORS ROTATABLE ABOUT SAID AXIS, SAID STATORS AND ROTORS HAVING ADJACENT GROUPS OF MAGNETIZABLE TEETH, MEANS FOR SUPPLYING A TOOTH ENERGIZING IMPULSE TO SAID STATORS IN SEQUENCE TO MAGNETIZE SAID TEETH, AND MEANS FOR VARYING THE EFFECT OF SAID ENERGIZING IMPULSES ON THE TEETH OF AT LEAST ONE OF SAID ROTORS WITH RESPECT TO THE EFFECT ON AT LEAST ONE OTHER OF SAID ROTORS TO EQUALIZE THE ANGULAR STEP MOVEMENTS OF SAID ROTOR MEANS.
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |