US3320906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel burning process and apparatus
Assignee: Combustion Engineering Inc
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Filing: 1966-04-20
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Granted: 1967-05-23
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Expires: 1986-04-20
Abstract
No abstract record available.
Inventors
- 👤 Domahidy George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:43
CPC Classifications
B; B01; B01D; B01D47/00; F; F23; F23J; F23J15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A FUEL BURNING SYSTEM COMPRISING A FURNACE WHEREIN COMBUSTION TAKES PLACE TO PRODUCE FLUE GAS, MEANS FOR FEEDING FUEL TO SAID FURNACE, AN AIR PREHEATER, MEANS FOR CONDUCTING AIR THROUGH SAID AIR PREHEATER WHEREIN SAID AIR BECOMES HEATED, MEANS FOR FEEDING AT LEAST A PORTION OF SAID HEATED AIR FROM SAID AIR PREHEATER TO SAID FURNACE FOR COMBUSTION AIR, A WET SCRUBBER, MEANS FOR FEEDING SAID FLUE GAS FROM SAID FURNACE TO SID WET SCRUBBER WHEREIN SAID FLUE GAS IS SCRUBBED WITH WATER, MEANS FOR CONDUCTING SAID FLUE GAS FROM SAID WET SCRUBBER TO THE ATMOSPHERE, MEANS FOR FEEDING A PORTION OF SAID HEATED AIR FROM SAID AIR PREHEATER TO SAID MEANS FOR CONDUCTING SAID FLUE GAS TO THE ATMOSPHERE WHEREBY SAID FLUE GAS AND HEATED AIR BECOME MIXED.
Claim 2
Dependent Claim
129 words
A FUEL BURNING SYSTEM COMPRISING A FURNACE WHEREIN COMBUSTION TAKES PLACE TO PRODUCE FLUE GAS, MEANS FOR FEEDING FUEL TO SAID FURNACE, AN AIR PREHEATER, MEANS FOR CONDUCTING AIR THROUGH SAID AIR PREHEATER WHEREIN SAID AIR BECOMES HEATED, MEANS FOR FEEDING AT LEAST A PORTION OF SAID HEATED AIR FROM SAID AIR PREHEATER TO SAID FURNACE FOR COMBUSTION AIR, A WET SCRUBBER, MEANS FOR FEEDING SAID FLUE GAS FROM SAID FURNACE TO SID WET SCRUBBER WHEREIN SAID FLUE GAS IS SCRUBBED WITH WATER, MEANS FOR CONDUCTING SAID FLUE GAS FROM SAID WET SCRUBBER TO THE ATMOSPHERE, MEANS FOR FEEDING A PORTION OF SAID HEATED AIR FROM SAID AIR PREHEATER TO SAID MEANS FOR CONDUCTING SAID FLUE GAS TO THE ATMOSPHERE WHEREBY SAID FLUE GAS AND HEATED AIR BECOME MIXED.
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |