US3678869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air heater and exhaust gas diluting apparatus for incinerator
Assignee: Bowman Enterprises Inc
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Filing: 1970-09-25
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Granted: 1972-07-25
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Expires: 1990-09-25
Abstract
Abstract An air heater and exhaust gas diluting apparatus for incinerator in which one or more of the outer walls of the incinerator are formed with spaced wall plates with baffle plates positioned to form a tortuous air passage between the spaced wall plates, duct means connected between the tortuous air passage and the exhaust gas chamber of said incinerator and fan means associated with the duct to draw air through the tortuous passage to heat the same and discharge the same into the exhaust gas chamber to add heat thereto and dilute the exhaust gases therein.
Inventors
- 👤 Vernon D Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:27
CPC Classifications
F; F23; F23M; F23M5/00; F23M5/08; F23M5/085; F23G; F23G5/00; F23G5/08; F23G5/14; F23G5/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
125 words
In combination with an incinerator having a housing forming a chamber for burning combustible material therein and an exhaust duct connected with said housing for conducting the products of combustion from the housing, an air heater associated with said housing, said heater receiving its heat from the burning material in said housing, said air heater comprising an enclosure having an air inlet port for receiving fresh air and an air outlet port connected to the exhaust duct, an air propelling means connected between the air heater and the exhaust duct, said heater having a plurality of baffle plates positioned in said enclosure defining a tortuous path for the air passing through the said heater, the heater being positioned adjacent the chamber for receiving heat therefrom.
Claim 2
Dependent Claim
125 words
In combination with an incinerator having a housing forming a chamber for burning combustible material therein and an exhaust duct connected with said housing for conducting the products of combustion from the housing, an air heater associated with said housing, said heater receiving its heat from the burning material in said housing, said air heater comprising an enclosure having an air inlet port for receiving fresh air and an air outlet port connected to the exhaust duct, an air propelling means connected between the air heater and the exhaust duct, said heater having a plurality of baffle plates positioned in said enclosure defining a tortuous path for the air passing through the said heater, the heater being positioned adjacent the chamber for receiving heat therefrom.
Claim 3
Dependent Claim
137 words
The structure as defined in claim 1 wherein said air propelling means comprises an enclosure having an air inlet and an air outlet end, the latter end being connected to the incinerator exhaust duct, a tapered air jet tube positioned adjacent the inlet end of the enclosure and extending therethrough for a predetermined distance toward the outlet end of the enclosure, a fan positioned in the inlet end of the enclosure for forcing air from said air inlet through said air jet tube to the outlet end of the said enclosure into the incinerator exhaust duct, at least one air conduit leading from said air heater to the said enclosure in the area of the jet tube whereby the heated air will be drawn into the enclosure by aspirator action and discharged into the incinerator exhaust duct.
Claim 4
Dependent Claim
67 words
The structure defined in claim 2 wherein a damper valve is positioned in the enclosure of said air propelling means adjacent the inlet end thereof and in front of the said fan for regulating the intake of atmospheric air, an air conduit having one end connected to the heater and its opposite end connected to the enclosure on the side of the fan opposite the jet tube.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |