US3214915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverse flow hydraulic pump-turbine systems
Assignee: English Electric Co Ltd
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Filing: 1964-01-22
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Granted: 1965-11-02
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Expires: 1984-01-22
Abstract
No abstract record available.
Inventors
- 👤 Weibel Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:01
CPC Classifications
F; F03; F03B; F03B13/00; F03B13/06; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y02E60/00; Y02E60/16; Y10; Y10S; Y10S415/00; Y10S415/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
IN OR FOR PUMPED STORAGE SYSTEM IN WHICH IS PROVIDED A HIGHER AND A LOWER RESERVOIR AT A DIFFERENT LEVELS, A REVERSIBLE PUMP-TURBINE HAVING AN EYE AND A PERIPHERY, A TURBINE HAVING A PERIPHERY, A GENERATOR/MOTOR, DRIVING CONNECTIONS BETWEEN SAID GENERATOR/MOTOR AND SAID REVISSIBLE PUMP-TURBINE AND SAID TURBINE, FIRST PIPE MEANS INTERCONNECTING THE HIGHER RESERVOIR AND THE PERIPHERY OF SAID REVERSIBLE PUMP-TURBINE, SECOND PIPE MEANS INTERCONNECTING THE PERIPHERY OF SAID TURBINE AND SAID LOWER RESERVOIR, THIRD PIPE MEANS INTERCONNECTING THE EYE OF SAID REVERSIBLE PUMP-TURBINE AND THE PERIPHERY OF SAID TURBINE, AND FOURTH PIPE MEANS INTERCONNECTING THE EYE OF SAID REVERSIBLE PUMP-TURBINE AND SAID LOWER RESERVOIR, WHEREBY WATER MAY FLOW ALTERNATIVELY, FIRST FROM THE HIGH RESERVOIR THROUGH THE REVERSIBLE PUMP-TURBINE TO DRIVE IT AND THEN TO THE LOWER RESERVOIR, SECONDLY, FROM THE HIGHER RESERVOIR THROUGH THE REVERSIBLE PUMP-TURBINE AND THE TURBINE IN SERIES TO DRIVE THEM, THIRDLY FROM THE LOWER RESERVOIR TO THE TURBINE TO DRIVE IT, AND FOURTHLY, FROM THE LOWER RESERVOIR TO THE REVERSIBLE PUMP-TURBINE TO BE PUMPED UP TO THE HIGHER RESERVOIR.
Claim 2
Dependent Claim
175 words
IN OR FOR PUMPED STORAGE SYSTEM IN WHICH IS PROVIDED A HIGHER AND A LOWER RESERVOIR AT A DIFFERENT LEVELS, A REVERSIBLE PUMP-TURBINE HAVING AN EYE AND A PERIPHERY, A TURBINE HAVING A PERIPHERY, A GENERATOR/MOTOR, DRIVING CONNECTIONS BETWEEN SAID GENERATOR/MOTOR AND SAID REVISSIBLE PUMP-TURBINE AND SAID TURBINE, FIRST PIPE MEANS INTERCONNECTING THE HIGHER RESERVOIR AND THE PERIPHERY OF SAID REVERSIBLE PUMP-TURBINE, SECOND PIPE MEANS INTERCONNECTING THE PERIPHERY OF SAID TURBINE AND SAID LOWER RESERVOIR, THIRD PIPE MEANS INTERCONNECTING THE EYE OF SAID REVERSIBLE PUMP-TURBINE AND THE PERIPHERY OF SAID TURBINE, AND FOURTH PIPE MEANS INTERCONNECTING THE EYE OF SAID REVERSIBLE PUMP-TURBINE AND SAID LOWER RESERVOIR, WHEREBY WATER MAY FLOW ALTERNATIVELY, FIRST FROM THE HIGH RESERVOIR THROUGH THE REVERSIBLE PUMP-TURBINE TO DRIVE IT AND THEN TO THE LOWER RESERVOIR, SECONDLY, FROM THE HIGHER RESERVOIR THROUGH THE REVERSIBLE PUMP-TURBINE AND THE TURBINE IN SERIES TO DRIVE THEM, THIRDLY FROM THE LOWER RESERVOIR TO THE TURBINE TO DRIVE IT, AND FOURTHLY, FROM THE LOWER RESERVOIR TO THE REVERSIBLE PUMP-TURBINE TO BE PUMPED UP TO THE HIGHER RESERVOIR.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |