Patent US3289408A successfully refreshed from Google Patents.
US3289408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerative turbine power plant
Assignee: Westinghouse Electric Corp
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Filing: 1964-06-22
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Granted: 1966-12-06
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Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Jr George J Silvestri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:10
CPC Classifications
F; F01; F01K; F01K7/00; F01K7/34; F01K7/40; F01K7/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A REGENERATIVE TURBINE POWER PLANT COMPRISING A VAPOR TURBINE HAVING A PLURALITY VAPOR EXPANSION STAGES, VAPOR GENERATING MEANS FOR PROVIDING PRESSURIZED VAPOR TO SAID TURBINE, A CONDENSER FOR CONDENSING THE EXHAUSTED VAPOR FROM SAID TURBINE, MEANS INCLUDING A PAIR OF CONDUITS CONNECTED IN PARALLEL FOR DIVIDING THE CONDENSATION FROM SAID CONDENSER INTO TWO STREAMS AND DIRECTING THE CONDENSATE TO SAID VAPOR GENERATING MEANS AS FEEDS LIQUID, AT LEAST A PAIR OF FEED LIQUID HEATERS INTERPOSED ONE IN EACH OF SAID CONDUITS, FIRST AND SECOND EXTRACTION CONDUITS FOR EXTRACTING PARTIALLY EXPANDED VAPOR FROM AT LEAST ONE EXPANSION STAGE OF SAID TURBINE AND DIRECTING THE PARTIALLY EXPANDED VAPOR TO SAID FEED LIQUID HEATERS, MEANS ASSOCIATED WITH SAID ONE EXPANSION STAGE FOR COLLECTING MOISTURE CARRIED BY THE PARTIALLY EXPANDED VAPOR IN SAID TURBINE, SAID COLLECTOR MEANS HAVING AN OUTLET FOR BLEEDING SAID MOISTURE FROM SAID TURBINE, AND AT LEAST ONE OF SAID EXTRACTION CONDUITS BEING CONNECTED TO SAID OUTLET, WHEREBY THE COLLECTED MOISTURE IS BLED FROM SAID TURBINE JOINTLY WITH THE EXTRACTED VAPOR.
Claim 2
Dependent Claim
170 words
A REGENERATIVE TURBINE POWER PLANT COMPRISING A VAPOR TURBINE HAVING A PLURALITY VAPOR EXPANSION STAGES, VAPOR GENERATING MEANS FOR PROVIDING PRESSURIZED VAPOR TO SAID TURBINE, A CONDENSER FOR CONDENSING THE EXHAUSTED VAPOR FROM SAID TURBINE, MEANS INCLUDING A PAIR OF CONDUITS CONNECTED IN PARALLEL FOR DIVIDING THE CONDENSATION FROM SAID CONDENSER INTO TWO STREAMS AND DIRECTING THE CONDENSATE TO SAID VAPOR GENERATING MEANS AS FEEDS LIQUID, AT LEAST A PAIR OF FEED LIQUID HEATERS INTERPOSED ONE IN EACH OF SAID CONDUITS, FIRST AND SECOND EXTRACTION CONDUITS FOR EXTRACTING PARTIALLY EXPANDED VAPOR FROM AT LEAST ONE EXPANSION STAGE OF SAID TURBINE AND DIRECTING THE PARTIALLY EXPANDED VAPOR TO SAID FEED LIQUID HEATERS, MEANS ASSOCIATED WITH SAID ONE EXPANSION STAGE FOR COLLECTING MOISTURE CARRIED BY THE PARTIALLY EXPANDED VAPOR IN SAID TURBINE, SAID COLLECTOR MEANS HAVING AN OUTLET FOR BLEEDING SAID MOISTURE FROM SAID TURBINE, AND AT LEAST ONE OF SAID EXTRACTION CONDUITS BEING CONNECTED TO SAID OUTLET, WHEREBY THE COLLECTED MOISTURE IS BLED FROM SAID TURBINE JOINTLY WITH THE EXTRACTED VAPOR.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |