Patent US3289402A successfully refreshed from Google Patents.
US3289402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal power installation
Assignee: ABB Stal AB
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Filing: 1964-12-03
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Granted: 1966-12-06
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 Jung Ingvar Karl Einar
- 👤 Elmenius Lars Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:38
CPC Classifications
F; F01; F01K; F01K7/00; F01K7/34; F01K7/40; F01K23/00; F01K23/02; F01K23/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
249 words
A THERMAL POWER INSTALLATION COMPRISING, A STEAM POWER ARRANGEMENT INCLUDING A STEAM TURBINE WITH A GENERATOR, CONDENSER AND PREHEATERS FOR HEATING CONDENSATE BY MEANS OF STEAM DRAWN FROM THE TURBINE, A GAS TURBINE WITH A GENERATOR, THE STEAM POWER ARRANGEMENT AND THE GAS TURBINE BEING ADAPTED FOR EITHER COMBINED OR SEPARATE OPERATION, THE GAS TURBINE INSTALLATION HAVING COMPRESSORS AND EXHAUST HEAT EXCHANGERS HAVING MEANS TO PREHEAT CONDENSATE AND FEED WATTER RESPECTIVELY, SAID HEAT EXCHANGER BEING COUPLED IN SERIES WITH AND AHEAD OF THE PREHEATERS AND HAVING MEANS BY WHICH FULL AMOUNT OF CONDENSATE AND FEED WATER RESPECTIVELY, PASS THROUGH BOTH THE GAS HEAT EXCHANGER AND PREHEATERS, MEANS BY WHICH LOW PRESSURE IS ATTAINED IN ONE GROUP OF THE PREHEATERS AND MEANS FOR ATTAINING HIGH PRESSURE IN A SECOND GROUP, MEANS BY WHICH HIGH PRESSURE IS ATTAINED IN ONE PART OF THE HEAT EXCHANGER AND MEANS BY WHICH LOW PRESSURE IS OBTAINED IN ANOTHER PART THEREOF, THE LOW PRESSURE PART OF THE HEAT EXCHANGER BEING COUPLED UP IN SERIES WITH AND AHEAD OF THE LOW PRESSURE PREHEATERS, THE HIGH PRESSURE PART OF THE HEAT EXCHANGER BEING COUPLED UP IN SERIES WITH AND AHEAD OF THE HIGH PRESSURE PREHEATERS, A BOOSTER PUMP AND A FEED PUMP COUPLED UP IN SERIES AHEAD OF THE HIGH PRESSURE PREHEATERS, THE HIGH PRESSURE PART OF THE HEAT EXCHANGER BEING COUPLED UP IN SERIES WITH AND BETWEEN THE PUMPS IN SUCH A MANNER THAT THEY CAN BE BY-PASSED ONLY WHEN THE STEAM TURBINE IS IN OPERATION.
Claim 2
Dependent Claim
249 words
A THERMAL POWER INSTALLATION COMPRISING, A STEAM POWER ARRANGEMENT INCLUDING A STEAM TURBINE WITH A GENERATOR, CONDENSER AND PREHEATERS FOR HEATING CONDENSATE BY MEANS OF STEAM DRAWN FROM THE TURBINE, A GAS TURBINE WITH A GENERATOR, THE STEAM POWER ARRANGEMENT AND THE GAS TURBINE BEING ADAPTED FOR EITHER COMBINED OR SEPARATE OPERATION, THE GAS TURBINE INSTALLATION HAVING COMPRESSORS AND EXHAUST HEAT EXCHANGERS HAVING MEANS TO PREHEAT CONDENSATE AND FEED WATTER RESPECTIVELY, SAID HEAT EXCHANGER BEING COUPLED IN SERIES WITH AND AHEAD OF THE PREHEATERS AND HAVING MEANS BY WHICH FULL AMOUNT OF CONDENSATE AND FEED WATER RESPECTIVELY, PASS THROUGH BOTH THE GAS HEAT EXCHANGER AND PREHEATERS, MEANS BY WHICH LOW PRESSURE IS ATTAINED IN ONE GROUP OF THE PREHEATERS AND MEANS FOR ATTAINING HIGH PRESSURE IN A SECOND GROUP, MEANS BY WHICH HIGH PRESSURE IS ATTAINED IN ONE PART OF THE HEAT EXCHANGER AND MEANS BY WHICH LOW PRESSURE IS OBTAINED IN ANOTHER PART THEREOF, THE LOW PRESSURE PART OF THE HEAT EXCHANGER BEING COUPLED UP IN SERIES WITH AND AHEAD OF THE LOW PRESSURE PREHEATERS, THE HIGH PRESSURE PART OF THE HEAT EXCHANGER BEING COUPLED UP IN SERIES WITH AND AHEAD OF THE HIGH PRESSURE PREHEATERS, A BOOSTER PUMP AND A FEED PUMP COUPLED UP IN SERIES AHEAD OF THE HIGH PRESSURE PREHEATERS, THE HIGH PRESSURE PART OF THE HEAT EXCHANGER BEING COUPLED UP IN SERIES WITH AND BETWEEN THE PUMPS IN SUCH A MANNER THAT THEY CAN BE BY-PASSED ONLY WHEN THE STEAM TURBINE IS IN OPERATION.
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 |