US3220193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for improving operating flexibility of steam-electric generating plants
Assignee: Gilbert Associates Inc
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Filing: 1961-01-06
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Granted: 1965-11-30
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Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Strohmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:01
CPC Classifications
F; F01; F01K; F01K7/00; F01K7/16; F01K7/22; F01K7/24; F01K3/00; F01K3/18; F01K3/20; F01K3/22; F22; F22B; F22B29/00; F22B29/06; F22B29/08; F22B29/12; F22B35/00; F22B35/06; F22B35/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A SYSTEM FOR CONTROLLING THE OPERATION OF A ONCETHROUGH STEAM GENERATING UNIT ARRANGED TO DELIVER SUPERHEATED STEAM TO A STEAM TURBINE, COMPRISING A STEAM GENERATING SECTION AND A SUPERHEATER SERIALLY CONNECTED THROUGH CONDUIT MEANS, A FIRING MEANS FOR PROVIDING A SOURCE OF HEAT INPUT TO SAID GENERATING SECTION AND SAID SUPERHEATER, A THROTTLING AND SHUT-OFF VALVE CONNECTED IN SERIES BETWEEN SAID GENERATING SECTION AND AT LEAST A PORTION OF SAID SUPERHEATER, A CONTROL VALVE AND FLASH TANK LOCATED SERIALLY IN A LINE BY-PASSING SAID THROTTLING SAID SHUT-OFF VALVE, AND CONTROL MEANS ASSOCIATED WITH SAID VALVES AND SAID FIRING MEANS OPERABLE TO SELECTIVELY REDUCE STEAM PRESSURE DOWNSTREAM OF SAID THROTTLING AND SHUTOFF VALVE, TO SELECTIVELY REGULATE THE OPERATION OF SAID FIRING MEANS AND THE FLUID FLOW FROM SAID FLASH TANK TO SAID SUPERHEATER PORTION, TO THEREBY CONTROL THE TURBINE INLET STEAM TEMPERATURE, TURBINE METAL VARIATIONS AND TEMPERATURE DIFFERENTIAL BETWEEN THE STEAM AND TURBINE METAL.
Claim 2
Independent Claim
153 words
A SYSTEM FOR CONTROLLING THE OPERATION OF A ONCETHROUGH STEAM GENERATING UNIT ARRANGED TO DELIVER SUPERHEATED STEAM TO A STEAM TURBINE, COMPRISING A STEAM GENERATING SECTION AND A SUPERHEATER SERIALLY CONNECTED THROUGH CONDUIT MEANS, A FIRING MEANS FOR PROVIDING A SOURCE OF HEAT INPUT TO SAID GENERATING SECTION AND SAID SUPERHEATER, A THROTTLING AND SHUT-OFF VALVE CONNECTED IN SERIES BETWEEN SAID GENERATING SECTION AND AT LEAST A PORTION OF SAID SUPERHEATER, A CONTROL VALVE AND FLASH TANK LOCATED SERIALLY IN A LINE BY-PASSING SAID THROTTLING SAID SHUT-OFF VALVE, AND CONTROL MEANS ASSOCIATED WITH SAID VALVES AND SAID FIRING MEANS OPERABLE TO SELECTIVELY REDUCE STEAM PRESSURE DOWNSTREAM OF SAID THROTTLING AND SHUTOFF VALVE, TO SELECTIVELY REGULATE THE OPERATION OF SAID FIRING MEANS AND THE FLUID FLOW FROM SAID FLASH TANK TO SAID SUPERHEATER PORTION, TO THEREBY CONTROL THE TURBINE INLET STEAM TEMPERATURE, TURBINE METAL VARIATIONS AND TEMPERATURE DIFFERENTIAL BETWEEN THE STEAM AND TURBINE METAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |