US3260874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor for a dynamoelectric machine
Assignee: Westinghouse Electric Corp
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Filing: 1963-08-30
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Granted: 1966-07-12
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Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:02
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/22; H02K1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A ROTOR FOR A DYNAMOELECTRIC MACHINE COMPRISING CORE AND SHAFT MEMBERS THROUGH WHICH AN AXIAL COOLANT AIR INTAKE IS PROVIDED, SAID CORE HAVING A PLURALITY OF CONDUCTORS DISPOSED IN SLOTS EXTENDING IN THE AXIAL DIRECTION ABOUT THE OUTER PERIPHERY THEREOF AND FURTHER HAVING AT LEAST ONE VENT DUCT EXTENDING GENERALLY IN THE RADIAL DIRECTION AND DIVIDING SAID CORE INTO AXIAL CORE SEGMENTS, A PLURALITY OF ELONGATED BLADES DISPOSED IN SAID VENT DUCT TO SPACE SAID CORE SEGMENTS FROM EACH OTHER, SAID BLADES SPACED FROM EACH OTHER IN THE CIRCUMFERENTIAL DIRECTION, EACH OF SAID BLADES EXTENDING GENERALLY OUTWARDLY THROUGH SAID VENT DUCT AND DISPOSED AT AN ANGLE TO A DIAMETRICAL REFERENCE LINE THROUGH THE INNER END THEREOF SO AS TO PRODUCT EFFICIENT AIR FLOW THROUGH SAID VENT DUCT, MEANS FOR SECURING SAID BLADES TO AT LEAST ONE OF SAID CORE SEGMENTS AND SAID CONDUCTOR SLOTS BEING DISPOSED AT AN ANGLE THEROF SO THAT SAID CONDUCTORS CAN ALSO BE ANGULARLY INCLINED TO PRODUCE EFFICIENT AIR FLOW THROUGH SAID VENT DUCT.
Claim 2
Dependent Claim
168 words
A ROTOR FOR A DYNAMOELECTRIC MACHINE COMPRISING CORE AND SHAFT MEMBERS THROUGH WHICH AN AXIAL COOLANT AIR INTAKE IS PROVIDED, SAID CORE HAVING A PLURALITY OF CONDUCTORS DISPOSED IN SLOTS EXTENDING IN THE AXIAL DIRECTION ABOUT THE OUTER PERIPHERY THEREOF AND FURTHER HAVING AT LEAST ONE VENT DUCT EXTENDING GENERALLY IN THE RADIAL DIRECTION AND DIVIDING SAID CORE INTO AXIAL CORE SEGMENTS, A PLURALITY OF ELONGATED BLADES DISPOSED IN SAID VENT DUCT TO SPACE SAID CORE SEGMENTS FROM EACH OTHER, SAID BLADES SPACED FROM EACH OTHER IN THE CIRCUMFERENTIAL DIRECTION, EACH OF SAID BLADES EXTENDING GENERALLY OUTWARDLY THROUGH SAID VENT DUCT AND DISPOSED AT AN ANGLE TO A DIAMETRICAL REFERENCE LINE THROUGH THE INNER END THEREOF SO AS TO PRODUCT EFFICIENT AIR FLOW THROUGH SAID VENT DUCT, MEANS FOR SECURING SAID BLADES TO AT LEAST ONE OF SAID CORE SEGMENTS AND SAID CONDUCTOR SLOTS BEING DISPOSED AT AN ANGLE THEROF SO THAT SAID CONDUCTORS CAN ALSO BE ANGULARLY INCLINED TO PRODUCE EFFICIENT AIR FLOW THROUGH SAID VENT DUCT.
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |