Patent US3122668A successfully refreshed from Google Patents.
US3122668A
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Arrangement for indicating leakage between cooling systems of turbogenerators
Assignee: BBC Brown Boveri AG Germany
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Filing: 1960-07-27
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Granted: 1964-02-25
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Expires: 1980-07-27
Abstract
No abstract record available.
Inventors
- 👤 Cuny Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:51
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/24; G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/32; G01M3/3236
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A COMBINED COLLING AND COOLANT LEAK DETECTION SYSTEM FOR A DYNAMO ELECTRIC MACHINE SUCH AS A TURBO-GENERATOR HAVING A SEALED CASING CONTAINING STATOR AND ROTOR ELEMENTS COMPRISING MEANS FOR SUPPLYING AND CIRCULATING A PRESSURIZED GASEOUS COOLANT THROUGH SAID CASING IN HEAT TRANSFER RELATION WITH SAID ROTOR, MEANS FOR SUPPLYING AND CIRCULATING A PRESSURIZED DE-AERATED LIQUID COOLANT SATURATED WITH A GAS INERT WITH RESPECT TO THE LIQUID THROUGH SAID STATOR IN HEAT TRANSFER RELATION WITH THE CURRENTCARRYING CONDUCTORS THEREON, THE PRESSURE OF SAID LIQUID COOLANT BEING LOWER THAN THE PRESSURE OF SAID GASEOUS COOLANT, AND AN INDICATING DEVICE CONNECTED TO THE CIRCULATION SYSTEM OF SAID LIQUID COOLANT FOR INDICATING ANY PENETRATION OF SAID GASEOUS COOLANT INTO THE CIRCULATION SYSTEM OF SAID LIQUID COOLANT DUE TO A LEAK IN THE LATTER WITHIN SAID CASING.
Claim 2
Dependent Claim
132 words
A COMBINED COLLING AND COOLANT LEAK DETECTION SYSTEM FOR A DYNAMO ELECTRIC MACHINE SUCH AS A TURBO-GENERATOR HAVING A SEALED CASING CONTAINING STATOR AND ROTOR ELEMENTS COMPRISING MEANS FOR SUPPLYING AND CIRCULATING A PRESSURIZED GASEOUS COOLANT THROUGH SAID CASING IN HEAT TRANSFER RELATION WITH SAID ROTOR, MEANS FOR SUPPLYING AND CIRCULATING A PRESSURIZED DE-AERATED LIQUID COOLANT SATURATED WITH A GAS INERT WITH RESPECT TO THE LIQUID THROUGH SAID STATOR IN HEAT TRANSFER RELATION WITH THE CURRENTCARRYING CONDUCTORS THEREON, THE PRESSURE OF SAID LIQUID COOLANT BEING LOWER THAN THE PRESSURE OF SAID GASEOUS COOLANT, AND AN INDICATING DEVICE CONNECTED TO THE CIRCULATION SYSTEM OF SAID LIQUID COOLANT FOR INDICATING ANY PENETRATION OF SAID GASEOUS COOLANT INTO THE CIRCULATION SYSTEM OF SAID LIQUID COOLANT DUE TO A LEAK IN THE LATTER WITHIN SAID CASING.
References Cited (Backward Citations)
US2675493A
Cited
US2970232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |