US3210631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic actuator
Assignee: NICTRONIX Inc
•
Filing: 1961-10-05
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Granted: 1965-10-05
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Expires: 1981-10-05
Abstract
No abstract record available.
Inventors
- 👤 Wesley O Niccolls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:30
CPC Classifications
H; H02; H02K; H02K29/00; H02K29/06; H02K29/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN COMBINATION WITH A D.C. ELECTRIC MOTOR HAVING A MOVABLE MEMBER WITH AT LEAST ONE N-S POLE POSITIONED WITHIN THE MAGNETIC FIELD OF A STATIONARY MEMBER HAVING WINDINGS FORMING AT LEAST TWICE THE NUMBER OF N-S POLES THAN IN SAID MOVABLE MEMBER, A CONTROL CIRCUIT INCLUDING A SOURCE OF D.C. CURRENT JOINED TO SID WINDINGS ON SAID STATIONARY MEMBER, AND BRUSHLESS RESOLVER MEANS ACTUATED BY SAID MOVABLE MEMBER AND CONNECTED TO SAID WINDINGS ON SAID STATIONARY MEMBER FOR SUCCESSIVELY ENERGIZING ALTERNATE WINDINGS IN A GIVEN DIRECTION WHILE SIMULTANOUSLY SWITCHING THE DIRECTION OF ENERGIZATION OF THE INTERMEDIATE ALTERNATE WINDINGS.
Claim 2
Dependent Claim
98 words
IN COMBINATION WITH A D.C. ELECTRIC MOTOR HAVING A MOVABLE MEMBER WITH AT LEAST ONE N-S POLE POSITIONED WITHIN THE MAGNETIC FIELD OF A STATIONARY MEMBER HAVING WINDINGS FORMING AT LEAST TWICE THE NUMBER OF N-S POLES THAN IN SAID MOVABLE MEMBER, A CONTROL CIRCUIT INCLUDING A SOURCE OF D.C. CURRENT JOINED TO SID WINDINGS ON SAID STATIONARY MEMBER, AND BRUSHLESS RESOLVER MEANS ACTUATED BY SAID MOVABLE MEMBER AND CONNECTED TO SAID WINDINGS ON SAID STATIONARY MEMBER FOR SUCCESSIVELY ENERGIZING ALTERNATE WINDINGS IN A GIVEN DIRECTION WHILE SIMULTANOUSLY SWITCHING THE DIRECTION OF ENERGIZATION OF THE INTERMEDIATE ALTERNATE WINDINGS.
References Cited (Backward Citations)
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Cited
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US2719944A
Cited
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Cited
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |