US3265949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed induction motor
Assignee: Individual
•
Filing: 1963-09-20
•
Granted: 1966-08-09
•
Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
- 👤 William S Rouverol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:43
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A VARIABLE SPEED INDUCTION MOTOR COMPRISING: A ROTOR PROVIDED WITH MEANS FOR CONDUCTING INDUCED CURRENTS THEREIN AND FORMED TO PROVIDE A PAIR OF AXIALLY SPACED PORTIONS HAVING A PAIR OF OPPOSED AXIALLY DIRECTED FACES DEFINING AN ANNULAR SPACE THEREBETWEEN, AN ELONGATED CIRCUMFERENTIALLY EXTENDING POLE PIECE IN SAID SPACE AND HAVING A PAIR OF OPPOSITE AXIALLY SPACED SIDES ADJACENT SAID FACES RESPECTIVELY, MOUNTING MEANS FOR SUPPORTING SAID POLE PIECE FOR ADJUSTABLE RADIAL MOVEMENT TO DIFFERENT DISTANCES FROM THE AXIS OF SAID ROTOR FOR VARYING THE SPEED OF THE MOTOR,
Claim 2
Dependent Claim
88 words
A VARIABLE SPEED INDUCTION MOTOR COMPRISING: A ROTOR PROVIDED WITH MEANS FOR CONDUCTING INDUCED CURRENTS THEREIN AND FORMED TO PROVIDE A PAIR OF AXIALLY SPACED PORTIONS HAVING A PAIR OF OPPOSED AXIALLY DIRECTED FACES DEFINING AN ANNULAR SPACE THEREBETWEEN, AN ELONGATED CIRCUMFERENTIALLY EXTENDING POLE PIECE IN SAID SPACE AND HAVING A PAIR OF OPPOSITE AXIALLY SPACED SIDES ADJACENT SAID FACES RESPECTIVELY, MOUNTING MEANS FOR SUPPORTING SAID POLE PIECE FOR ADJUSTABLE RADIAL MOVEMENT TO DIFFERENT DISTANCES FROM THE AXIS OF SAID ROTOR FOR VARYING THE SPEED OF THE MOTOR,
References Cited (Backward Citations)
US1595550A
Cited
US1855617A
Cited
US2185990A
Cited
US2550571A
Cited
US2848675A
Cited
US2950401A
Cited
US3017528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |