US3303369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machines
Assignee: Westinghouse Electric Corp
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Filing: 1963-12-18
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Granted: 1967-02-07
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 John W Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:53
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/22; H02K19/24; H02K16/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A DYNAMOELECTRIC MACHINE COMPRISING A HOLLOW ROTOR DISPOSED WITHIN A STATOR AND HAVING A PLURALITY OF AXIALLY SPACED INTERDIGITATED SETS OF AXIALLY EXTENDING AND CIRCUMFERENTIALLY SPACED MAGNETIC POLES, SAID STATOR INCLUDING A PLURALITY OF STATOR CORES SUPPORTED NON-MAGNETICALLY AND AXIALLY SPACED SO AS TO BE ASSOCIATED RESPECTIVELY WITH SAID ROTOR POLE SETS, AND MEANS FOR EXCITING SAID MAGNETIC POLES WITH POLARIZING FLUX IN A SERIAL MAGNETIC PATH WHICH ALTERNATELY INCLUDES SAID ROTOR POLE SETS AND SAID STATOR CORES PROGRESSIVELY IN THE AXIAL DIRECTION, SAID EXCITATION MEANS COMPRISING A COIL MOUNTED WITHIN SAID ROTOR UPON A FIXED MAGNETIC CORE EXTENDING AXIALLY OF THE ROTOR.
Claim 2
Dependent Claim
103 words
A DYNAMOELECTRIC MACHINE COMPRISING A HOLLOW ROTOR DISPOSED WITHIN A STATOR AND HAVING A PLURALITY OF AXIALLY SPACED INTERDIGITATED SETS OF AXIALLY EXTENDING AND CIRCUMFERENTIALLY SPACED MAGNETIC POLES, SAID STATOR INCLUDING A PLURALITY OF STATOR CORES SUPPORTED NON-MAGNETICALLY AND AXIALLY SPACED SO AS TO BE ASSOCIATED RESPECTIVELY WITH SAID ROTOR POLE SETS, AND MEANS FOR EXCITING SAID MAGNETIC POLES WITH POLARIZING FLUX IN A SERIAL MAGNETIC PATH WHICH ALTERNATELY INCLUDES SAID ROTOR POLE SETS AND SAID STATOR CORES PROGRESSIVELY IN THE AXIAL DIRECTION, SAID EXCITATION MEANS COMPRISING A COIL MOUNTED WITHIN SAID ROTOR UPON A FIXED MAGNETIC CORE EXTENDING AXIALLY OF THE ROTOR.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |