US3333124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction motor
Assignee: Skinner Precision Industries Inc
•
Filing: 1964-09-29
•
Granted: 1967-07-25
•
Expires: 1984-09-29
Abstract
No abstract record available.
Inventors
- 👤 Francis Gerald Allen
- 👤 Chung Kwangho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:18
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02; H02K41/025; B; B65; B65G; B65G23/00; B65G2811/00; B65G2811/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
AN INDUCTION MOTOR COMPRISING AN ELONGATED STATOR HAVING A FERROMAGNETIC STRUCTURE AND A PLURALITY OF COILS OF WIRE DISTRIBUTED ALONG ITS LENGTH TO FORM TWO OPPOSITELY DISPOSED ACTIVE STATOR SURFACES; MEANS FOR CONNECTING SAID COILS TO A MULTI-PHASE SOURCE OF ALTERNATING CURRENT TO PRODUCE AN ELECTROMAGNETIC FIELD THAT MOVES IN THE SAME DIRECTION ALONG THE LENGTH OF BOTH ACTIVE STATOR SURFACES; A CONTINUOUS CONDUCTIVE MEMBER ON BOTH SIDES OF SAID STATOR COEXTENSIVE WITH THE ACTIVE SURFACES THEREOF, SAID STATOR AND CONDUCTIVE MEMBER BEING SUPPORTED FOR RELATIVE MOVEMENT; A FERROMAGNETIC MEMBER COEXTENSIVE WITH THE ACTIVE SURFACES OF SAID STATOR AND DISPOSED ON THE OPPOSITE SIDE OF SAID CONDUCTIVE MEMBER RELATIVE TO SAID STATOR ACTIVE SURFACES.
Claim 2
Dependent Claim
114 words
AN INDUCTION MOTOR COMPRISING AN ELONGATED STATOR HAVING A FERROMAGNETIC STRUCTURE AND A PLURALITY OF COILS OF WIRE DISTRIBUTED ALONG ITS LENGTH TO FORM TWO OPPOSITELY DISPOSED ACTIVE STATOR SURFACES; MEANS FOR CONNECTING SAID COILS TO A MULTI-PHASE SOURCE OF ALTERNATING CURRENT TO PRODUCE AN ELECTROMAGNETIC FIELD THAT MOVES IN THE SAME DIRECTION ALONG THE LENGTH OF BOTH ACTIVE STATOR SURFACES; A CONTINUOUS CONDUCTIVE MEMBER ON BOTH SIDES OF SAID STATOR COEXTENSIVE WITH THE ACTIVE SURFACES THEREOF, SAID STATOR AND CONDUCTIVE MEMBER BEING SUPPORTED FOR RELATIVE MOVEMENT; A FERROMAGNETIC MEMBER COEXTENSIVE WITH THE ACTIVE SURFACES OF SAID STATOR AND DISPOSED ON THE OPPOSITE SIDE OF SAID CONDUCTIVE MEMBER RELATIVE TO SAID STATOR ACTIVE SURFACES.
References Cited (Backward Citations)
US547069A
Cited
US2112264A
Cited
US1881015A
Cited
US1881014A
Cited
US2337430A
Cited
US2638347A
Cited
US2897387A
Cited
US2831131A
Cited
US3223867A
Cited
US3194032A
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 |