US3218490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid cooled motor
Assignee: General Electric Co
•
Filing: 1962-12-04
•
Granted: 1965-11-16
•
Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Ralph O Eis
- 👤 Lawrence R Tomhave
- 👤 James A Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:23
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128; H01; H01B; H01B17/00; H01B17/26; H01B17/30; H01B17/303; H01B17/306; H02K5/22; H02K5/225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A LIQUID COOLED MOTOR COMPRISING A STATOR HAVING A WINDING HERMETICALLY SEALED IN A PRESSURE VESSEL, A ROTOR IN SAID STATOR INCLUDING A SHAFT ADAPTED FOR CONNECTION AT ONE END TO A PUMP, AN ADAPTER DETACHABLY MOUNTED ON ONE END OF SAID STATOR HAVING A CENTRAL OPENING THEREIN FOR RECEIVING A ROTOR SHAFT, A MEANS IN SAID ADAPTER PERMITTING LIMITED INTERCHANGE OF LIQUID BETWEEN A PUMP TO WHICH SAID ADAPTER IS CONNECTABLE AND THE AIR GAP FORMED BY THE COACTING SURFACES OF SAID STATOR AND ROTOR, A CLOSURE ATTACHED TO THE OTHER END OF THE STATOR ENCLOSING THRUST BEARING ELEMENTS ATTACHED TO SAID SHAFT, AND A HEAT EXCHANGER HAVING ITS INLET AND OUTLET RESPECTIVELY CONNECTED WITH CAVITIES IN OPPOSITE ENDS OF THE MOTOR FOR ABSORBING HEAT TRANSMITTED THERETO BY A LIQUID ADAPTED FOR CIRCULATION THROUGH THE MOTOR AIR GAP.
Claim 2
Dependent Claim
139 words
A LIQUID COOLED MOTOR COMPRISING A STATOR HAVING A WINDING HERMETICALLY SEALED IN A PRESSURE VESSEL, A ROTOR IN SAID STATOR INCLUDING A SHAFT ADAPTED FOR CONNECTION AT ONE END TO A PUMP, AN ADAPTER DETACHABLY MOUNTED ON ONE END OF SAID STATOR HAVING A CENTRAL OPENING THEREIN FOR RECEIVING A ROTOR SHAFT, A MEANS IN SAID ADAPTER PERMITTING LIMITED INTERCHANGE OF LIQUID BETWEEN A PUMP TO WHICH SAID ADAPTER IS CONNECTABLE AND THE AIR GAP FORMED BY THE COACTING SURFACES OF SAID STATOR AND ROTOR, A CLOSURE ATTACHED TO THE OTHER END OF THE STATOR ENCLOSING THRUST BEARING ELEMENTS ATTACHED TO SAID SHAFT, AND A HEAT EXCHANGER HAVING ITS INLET AND OUTLET RESPECTIVELY CONNECTED WITH CAVITIES IN OPPOSITE ENDS OF THE MOTOR FOR ABSORBING HEAT TRANSMITTED THERETO BY A LIQUID ADAPTED FOR CIRCULATION THROUGH THE MOTOR AIR GAP.
References Cited (Backward Citations)
US2169967A
Cited
US2309670A
Cited
US2598547A
Cited
US2687695A
Cited
US2622537A
Cited
US2894155A
Cited
US2964659A
Cited
US3043903A
Cited
US3013500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |