Exhaust gas washing apparatus
Abstract
Abstract AN EXHAUST GAS TREATMENT APPARATUS INCLUDING A HEAT EXCHANGER DEFINING FIRST AND SECOND PASSAGES EXTENDING THERETHROUGH IN GOOD HEAT TRANSFER RELATION AND AN EXHAUST GAS SCRUBBING CHAMBER INCLUDING WATER JET DISCHARGE MEANS FOR WATER SPRAY CLEANSING AND COOLING OF EXHAUST GASES PASSING THROUGH THE SCRUBBING CHAMBER. THE EXHAUST GASES TO BE TREATED ARE FIRST PASSED THROUGH THE FIRST PASSAGE OF THE HEAT EXCHANGER, THROUGH THE SCRUBBING CHAMBER AND THEREAFTER THROUGH THE SECOND PASSAGE OF THE HEAT EXCHANGER. THE SUPPLY OF WATER FOR THE WATER JET DISCHANGE MEANS COMPRISES AT LEAT A SEMI-CLOSED SYSTEM WHEREIN THE SPRAYED WATER IS COLLECTOR, COOLED AND THEN PUMPED BACK THROUGH THE WATER JET DISCHARGE MEANS.
Inventors
- 👤 John S Demaree
Bibliographic Details
Claims Analysis
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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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |