US3621653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power generation plant
Assignee: Babcock Atlantique SA
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Filing: 1969-03-17
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Granted: 1971-11-23
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Expires: 1989-03-17
Abstract
Abstract POWER GENERATION PLANT INCLUDES A PRIMARY STEAM POWER GENERATION CYCLE AND A SECONDARY POWER GENERATION CYCLE EMPLOYING A WORKING FLUID OF LOW FREEZING POINT, THE VAPOURISATION OF THE WORKING FLUID BEING PERFORMED BY HEAT EXCHANGE WITH THE VAPOUR EXHAUSTED FROM THE PRIMARY CYCLE. IN ADDITION, THE PLANT INCLUDES A REFRIGERATING CYCLE WHICH IS APPROPRIATE TO LOWER THE TEMPERATURE AT THE COLD SOURCE OF THE SECONDARY CYELE. THIS REFRIGERATING CYCLE IS INTENDED TO BE BROUGHT INTO OPERATION DURING THE HOURS OF SLACK DEMAND FOR MOTIVE POWER.
Inventors
- 👤 Pierre Henri Pacault
- 👤 Francis J Mary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:28
CPC Classifications
F; F01; F01K; F01K17/00; F01K17/06; F01K23/00; F01K23/02; F01K23/04; F01K3/00; F01K3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |