Patent US2591141A successfully refreshed from Google Patents.
Patent US3690840A successfully refreshed from Google Patents.
US3690840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for incinerating waste gases
Assignee: Individual
•
Filing: 1970-08-24
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Granted: 1972-09-12
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Expires: 1990-08-24
Abstract
Abstract D R A W I N G A CYLINDRICAL FORM THERMAL-CATALYTIC INCINERATOR UNIT FOR TREATING WASTE GAS STREAMS. THE CATALYTIC BED TRAVERSES THE DOWNSTREAM END OF THE COMBUSTION CHAMBER TO EFFECT CONTACT WITH THE MIXTURE OF WASTE GASES AND BURNER PRODUCTS FROM A BURNER AXIALLY POSITIONED AT THE OPPOSING INLET END OF THE COMBUSTION CHAMBER. AN ANNULAR HEAT EXCHANGE SECTION AROUND THE COMBUSTION ZONE PROVIDES FOR COOLING THE RESULTING OXIDIZED GAS STREAM AND FOR PREHEATING THE INCOMING NOXIOUS STREAM WHICH IS THEN FED CORCUMFERENTIALLY AROUND THE BURNER TO ADMIX WITH THE FLAME AND HOT GASES THEREFROM.
Inventors
- 👤 Herbert Volker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:59
CPC Classifications
F; F23; F23G; F23G7/00; F23G7/06; F23G7/07; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2882; F01N3/2889; F23G7/061; F23G7/065; F23G7/066; F01N2240/00; F01N2240/02; F01N2240/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |