US3138925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined steam and gas turbine power plant
Assignee: Cegelec SA
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Filing: 1961-06-19
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Granted: 1964-06-30
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Macherey Charles Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:39
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/08; F22; F22B; F22B1/00; F22B1/02; F22B1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A COMBINED STEAM AND GAS TURBINE POWER PLANT COMPRISING A PRIMARY COMBUSTION CHAMBER BEING FED WITH AIR UNDER PRESSURE; A BOILER CONNECTED TO RECEIVE COMBUSTION GASES PRODUCED IN SAID COMBUSTION CHAMBER; HEAT EXCHANGER MEANS CONNECTED TO RECEIVE THE COMBUSTION GASES AS THEY LEAVE THE BOILER, SAID EXCHANGER MEANS COOLING SAID COMBUSTION PRODUCTS; MEANS DIVIDING THE COOLED COMBUSTION PRODUCTS INTO TWO PORTIONS; MEANS FOR PUMPING ONE OF SAID PORTIONS BACK TO THE BOILER TO RECYCLE THAT PORTION OF THE COOLED PRODUCTS; A SECOND COMBUSTION CHAMBER BEING FED WITH AIR UNDER PRESSURE; MEANS CONDUCTING THE OTHER OF SAID COOLED PORTIONS ALONG THE WALLS OF SAID BOILER, FOR COOLING THEREOF, TO SAID SECOND COMBUSTION CHAMBER, WHEREIN SAID PRODUCTS ARE REHEATED; A TURBINE DRIVEN BY AIR UNDER PRESSURE LOCATED BETWEEN SAID HEAT EXCHANGER AND SAID SECOND COMBUSTION CHAMBER; SAID TURBINE DRIVING SAID PUMPING MEANS; AND MEANS CONDUCTING SAID REHEATED PORTION OF COMBUSTION PRODUCTS TO DRIVE A GAS TURBINE.
Claim 2
Dependent Claim
154 words
A COMBINED STEAM AND GAS TURBINE POWER PLANT COMPRISING A PRIMARY COMBUSTION CHAMBER BEING FED WITH AIR UNDER PRESSURE; A BOILER CONNECTED TO RECEIVE COMBUSTION GASES PRODUCED IN SAID COMBUSTION CHAMBER; HEAT EXCHANGER MEANS CONNECTED TO RECEIVE THE COMBUSTION GASES AS THEY LEAVE THE BOILER, SAID EXCHANGER MEANS COOLING SAID COMBUSTION PRODUCTS; MEANS DIVIDING THE COOLED COMBUSTION PRODUCTS INTO TWO PORTIONS; MEANS FOR PUMPING ONE OF SAID PORTIONS BACK TO THE BOILER TO RECYCLE THAT PORTION OF THE COOLED PRODUCTS; A SECOND COMBUSTION CHAMBER BEING FED WITH AIR UNDER PRESSURE; MEANS CONDUCTING THE OTHER OF SAID COOLED PORTIONS ALONG THE WALLS OF SAID BOILER, FOR COOLING THEREOF, TO SAID SECOND COMBUSTION CHAMBER, WHEREIN SAID PRODUCTS ARE REHEATED; A TURBINE DRIVEN BY AIR UNDER PRESSURE LOCATED BETWEEN SAID HEAT EXCHANGER AND SAID SECOND COMBUSTION CHAMBER; SAID TURBINE DRIVING SAID PUMPING MEANS; AND MEANS CONDUCTING SAID REHEATED PORTION OF COMBUSTION PRODUCTS TO DRIVE A GAS TURBINE.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |