US3191083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-starting single-phase motor without a commutator
Assignee: US Philips Corp
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Filing: 1962-01-12
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Granted: 1965-06-22
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Expires: 1982-01-12
Abstract
No abstract record available.
Inventors
- 👤 Meijer Barend Martinus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:52
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/04; H02K17/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A SELF-STARTING SIGNLE PHASE MOTOR COMPRISING A ONE PIECE MOTOR CORE HAVING INWARDLY PROJECTING OPPOSED POLE PIECE, A PAIR OF SPACED POLE SEGMENTS EXTENDING BETWEEN SAID POLE PIECES, A COIL ON EACH SAID POLE PIECE, EACH SAID POLE PIECE HAVING A SHADED PORTION EXTENDING BEYOND THE ASSOCIATED COIL, EACH SAID SHADED EXTENSION HAVING MEANS RECEIVING A PILE SEGMENT, THE REMAINING POLE PIECES AND ASSOCIATED POLE SEGMENTS FORMING AN AIR GAP OVER THE UNSHADED PORTIONS THEREOF, SAID AIR GAPS OF THE STATOR CIRCUIT BEING TRAVERSED EXCLUSIVELY BY THE UNSHADED FIELD OF SAID MOTOR.
Claim 2
Dependent Claim
92 words
A SELF-STARTING SIGNLE PHASE MOTOR COMPRISING A ONE PIECE MOTOR CORE HAVING INWARDLY PROJECTING OPPOSED POLE PIECE, A PAIR OF SPACED POLE SEGMENTS EXTENDING BETWEEN SAID POLE PIECES, A COIL ON EACH SAID POLE PIECE, EACH SAID POLE PIECE HAVING A SHADED PORTION EXTENDING BEYOND THE ASSOCIATED COIL, EACH SAID SHADED EXTENSION HAVING MEANS RECEIVING A PILE SEGMENT, THE REMAINING POLE PIECES AND ASSOCIATED POLE SEGMENTS FORMING AN AIR GAP OVER THE UNSHADED PORTIONS THEREOF, SAID AIR GAPS OF THE STATOR CIRCUIT BEING TRAVERSED EXCLUSIVELY BY THE UNSHADED FIELD OF SAID MOTOR.
References Cited (Backward Citations)
US2251674A
Cited
US2251673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |