Patent US3075103A successfully refreshed from Google Patents.
US3075103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid cooled chill ring for canned motors
Assignee: General Electric Co
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Filing: 1959-09-30
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Granted: 1963-01-22
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Expires: 1979-09-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard C Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:53
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/22; H02K9/227; H02K5/00; H02K5/04; H02K5/20; H02K5/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A COOLING ARRANGEMENT FOR DYNAMOELECTRIC MACHINES COMPRISING A ROTOR AND A STATOR HAVING A WINDING THEREIN INCLUDING END TURNS PROJECTING OUTWARDLY FROM OPPOSITE ENDS OF THE STATOR, A PRESSURE VESSEL ENCLOSING SAID STATOR AND OF A LENGTH GREATER THAN THE STATOR AXIAL LENGTH, A PLURALITY OF GROOVES IN SAID VESSEL AND LOCATED RADIALLY OUTWARD FROM THE END TURNS ON AT LEAST ONE END OF THE STATOR, SAID GROOVES EXTENDING AN AXIAL DISTANCE SUBSTANTIALLY THE SAME AS SAID END TURN LENGTH, A CYLINDRICAL MEMBER POSITIONED IN SAID VESSEL AND HAVING ITS OUTER SURFACE COACTING WITH WALLS FORMING SAID GROOVES FOR PROVIDING CLOSED PASSAGES, AND AN INLET AND OUTLET CONNECTED WITH SAID PASSAGES FOR CIRCULATING A FLUID THROUGH THE HEAT EXCHANGER USED IN ABSORBING HEAT GENERATED BY THE END TURNS DURING MACHINE OPERATION.
Claim 2
Dependent Claim
131 words
A COOLING ARRANGEMENT FOR DYNAMOELECTRIC MACHINES COMPRISING A ROTOR AND A STATOR HAVING A WINDING THEREIN INCLUDING END TURNS PROJECTING OUTWARDLY FROM OPPOSITE ENDS OF THE STATOR, A PRESSURE VESSEL ENCLOSING SAID STATOR AND OF A LENGTH GREATER THAN THE STATOR AXIAL LENGTH, A PLURALITY OF GROOVES IN SAID VESSEL AND LOCATED RADIALLY OUTWARD FROM THE END TURNS ON AT LEAST ONE END OF THE STATOR, SAID GROOVES EXTENDING AN AXIAL DISTANCE SUBSTANTIALLY THE SAME AS SAID END TURN LENGTH, A CYLINDRICAL MEMBER POSITIONED IN SAID VESSEL AND HAVING ITS OUTER SURFACE COACTING WITH WALLS FORMING SAID GROOVES FOR PROVIDING CLOSED PASSAGES, AND AN INLET AND OUTLET CONNECTED WITH SAID PASSAGES FOR CIRCULATING A FLUID THROUGH THE HEAT EXCHANGER USED IN ABSORBING HEAT GENERATED BY THE END TURNS DURING MACHINE OPERATION.
References Cited (Backward Citations)
GB109294A
Cited
US1384865A
Cited
FR761437A
Cited
US2462451A
Cited
US2894155A
Cited
GB792536A
Cited
US2915656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |