Patent US3815523A successfully refreshed from Google Patents.
US3815523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incinerator
Assignee: KLEENAIRE RECYCLING SYST Inc
•
Filing: 1973-04-04
•
Granted: 1974-06-11
•
Expires: 1993-04-04
Abstract
Abstract An incinerator having a closed combustion chamber includes an exhaust gas separator for separating and directing the lighter inert exhaust gases into a stack and the heavier exhaust gases, including smoke and other solid materials, into a recirculation system for recirculation through the combustion chamber. Air required to support combustion is admitted into the recirculation system and mixed with and heated by the exhaust gases being recirculated before entering the combustion chamber, thereby permitting the temperature in the combustion chamber to increase to a level sufficient to assure complete burning of the combustible materials in the exhaust gases recirculated into the combustion chamber and to normally sustain combustion without auxiliary burners except during the beginning and end portions of a burning cycle. The exhaust gas velocity is reduced in the gas separator to facilitate separation and recirculation of the heavier exhaust gases and solids.
Inventors
- 👤 R Gibeault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:46
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/08; F23G5/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
307 words
In an incinerator of the type including an enclosed combustion chamber for receiving a charge of material to be burned and having air inlet means for admitting air to support combustion and an exhaust outlet, and an exhaust stack connected in fluid communication with said exhaust outlet for withdrawing exhaust gases from said combustion chamber, the improvement comprising a gas separation chamber having an inlet connected to said exhaust outlet and first and second outlet ports, said first outlet port being connected to said exhaust stack, recycling duct means including a conduit having one end connected to said second exhaust port and its other end connected to a recycling port in said combustion chamber to permit recirculation of saturated exhaust gases from said separation chamber into said combustion chamber, means producing a substantial reduction in velocity of the exhaust gases between said exhaust outlet and said separation chamber to thereby facilitate separation of the saturated gases from the combustion chamber for recycling thereto, said recycling duct means includes a plurality of conduits each communicating with said combustion chamber for delivering the recycled gases into said combustion chamber at different points, blower means connected in said recycling duct for withdrawing only a portion of the exhaust gases from said separation chamber and recirculating the withdrawn portion through said duct into said combustion chamber, vent means connected to said blower for admitting a controlled amount of ambient air into said recycling duct means whereby air from said vent and the recirculated exhaust gases are mixed in said recycling duct before entering said combustion chamber, and barometric damper means for admitting air into said stack, said damper being operative to control the pressure in said stack and thereby the pressure at said first outlet port of said separation chamber to enable said blower to withdraw and recirculate said saturated gases.
Claim 2
Dependent Claim
307 words
In an incinerator of the type including an enclosed combustion chamber for receiving a charge of material to be burned and having air inlet means for admitting air to support combustion and an exhaust outlet, and an exhaust stack connected in fluid communication with said exhaust outlet for withdrawing exhaust gases from said combustion chamber, the improvement comprising a gas separation chamber having an inlet connected to said exhaust outlet and first and second outlet ports, said first outlet port being connected to said exhaust stack, recycling duct means including a conduit having one end connected to said second exhaust port and its other end connected to a recycling port in said combustion chamber to permit recirculation of saturated exhaust gases from said separation chamber into said combustion chamber, means producing a substantial reduction in velocity of the exhaust gases between said exhaust outlet and said separation chamber to thereby facilitate separation of the saturated gases from the combustion chamber for recycling thereto, said recycling duct means includes a plurality of conduits each communicating with said combustion chamber for delivering the recycled gases into said combustion chamber at different points, blower means connected in said recycling duct for withdrawing only a portion of the exhaust gases from said separation chamber and recirculating the withdrawn portion through said duct into said combustion chamber, vent means connected to said blower for admitting a controlled amount of ambient air into said recycling duct means whereby air from said vent and the recirculated exhaust gases are mixed in said recycling duct before entering said combustion chamber, and barometric damper means for admitting air into said stack, said damper being operative to control the pressure in said stack and thereby the pressure at said first outlet port of said separation chamber to enable said blower to withdraw and recirculate said saturated gases.
Claim 3
Dependent Claim
66 words
The incinerator as defined in claim 1 wherein said means producing said reduction in velocity of the exhaust gases comprises means defining a constriction in said exhaust outlet to produce a relatively high velocity past said constriction, said separation chamber having a substantially larger cross-sectional area than said constriction whereby the gas velocity is substantially reduced as it passes from said constriction into said separation chamber.
Claim 4
Dependent Claim
75 words
The incinerator as defined in claim 1 wherein said first and said second outlet ports are positioned in substantially opposed relation to one another and on opposed sides of said exhaust outlet and lie in planes generally parallel to the direction of flow of the exhaust gases through said exhaust outlet whereby the exhaust gases entering said separation chamber from said exhaust outlet must alter directions substantially before exiting through either of said outlet ports.
Claim 5
Dependent Claim
47 words
The incinerator as defined in claim 3 further comprising baffle means in said separation chamber for deflecting gases passing through said exhaust outlet toward said second outlet port, said baffle means being adjustable to vary the extent of deflection of said gases passing through said exhaust outlet.
Claim 6
Dependent Claim
33 words
The incinerator as defined in claim 3 further comprising auxiliary burner means operable to initiate combustion within said combustion chamber and to maintain the temperature in said combustion chamber above a predetermined minimum.
Claim 7
Dependent Claim
246 words
An incinerator comprising, in combination, an enclosed combustion chamber for receiving a charge of combustible material to be burned therein, means sealing said chamber to prevent the uncontrolled flow of air into the chamber, an exhaust outlet in said chamber, a gas separation chamber having an inlet connected to said exhaust outlet and a pair of outlet ports, said outlet ports being spaced from one another and offset with respect to said inlet whereby exhaust gases entering said separation chamber from said combustion chamber through said exhaust outlet are compelled to materially change directions before passing through either of said outlet ports, an exhaust stack connected to one of said outlet ports for withdrawing exhaust gases from said separation chamber, a recirculation duct having one end connected to the other of said outlet ports and its other end connected to a recirculation port in said combustion chamber, blower means connected to said recirculation duct and operable to withdraw a portion of the exhaust gases from said separation chamber and to recirculate the withdrawn portion through said duct and into said combustion chamber, vent means for admitting air into said combustion chamber at a controlled rate, said vent means including means admitting air into said recirculation duct at a point to be mixed with and preheated by said portion of the exhaust gases being recirculated and before entering said combustion chamber, and barometric damper means for controlling the pressure in said stack at said first outlet port.
Claim 8
Dependent Claim
246 words
An incinerator comprising, in combination, an enclosed combustion chamber for receiving a charge of combustible material to be burned therein, means sealing said chamber to prevent the uncontrolled flow of air into the chamber, an exhaust outlet in said chamber, a gas separation chamber having an inlet connected to said exhaust outlet and a pair of outlet ports, said outlet ports being spaced from one another and offset with respect to said inlet whereby exhaust gases entering said separation chamber from said combustion chamber through said exhaust outlet are compelled to materially change directions before passing through either of said outlet ports, an exhaust stack connected to one of said outlet ports for withdrawing exhaust gases from said separation chamber, a recirculation duct having one end connected to the other of said outlet ports and its other end connected to a recirculation port in said combustion chamber, blower means connected to said recirculation duct and operable to withdraw a portion of the exhaust gases from said separation chamber and to recirculate the withdrawn portion through said duct and into said combustion chamber, vent means for admitting air into said combustion chamber at a controlled rate, said vent means including means admitting air into said recirculation duct at a point to be mixed with and preheated by said portion of the exhaust gases being recirculated and before entering said combustion chamber, and barometric damper means for controlling the pressure in said stack at said first outlet port.
Claim 9
Dependent Claim
52 words
The incinerator as defined in claim 6 further comprising gas velocity control means producing a substantial reduction in velocity of the exhaust gases within said separation chamber to thereby facilitate separation and recirculation of the heavier gases and particulate material from the exhaust gases entering said separation chamber froM said combustion chamber.
Claim 10
Dependent Claim
57 words
The incinerator as defined in claim 7 wherein said velocity control means comprises means defining a constriction in said exhaust outlet, said constriction being operable to produce a high exhaust gas velocity through said constriction, said separation chamber having a cross-sectional area immediately adjacent said constriction which is substantially greater than the cross-sectional area of said constriction.
Claim 11
Dependent Claim
30 words
The incinerator as defined in claim 6 wherein said constriction defines means defining an elongated generally rectangular orifice positioned within the path of the exhaust gases at said exhaust outlet.
Claim 12
Dependent Claim
33 words
The incinerator as defined in claim 9 further comprising auxiliary burner means operable to initiate combustion within said combustion chamber and to maintain the temperature in said combustion chamber above a predetermined minimum.
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |