← Back to Patent Explorer
US3771469A Expired / Lapsed US ⏱️ 0.0 years remaining

Incinerator

Assignee: General Electric Co
•
Filing: 1972-08-09
•
Granted: 1973-11-13
•
Expires: 1992-08-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An incinerator for burning waste material including a horizontally extending combustion chamber having spaced end walls and a side wall through which a mixture of waste material and air is fed under pressure tangentially directed to said side wall for establishing a vortical movement of the waste material towards one of the end walls. The chamber includes an exhaust flue near one end wall substantially concentric with the longitudinal axis of the chamber to exhaust combustion gases. The waste material is ignited during its vortical movement through the combustion chamber by a combustion burner having a nozzle directed into the combustion chamber and which is provided with an enclosure annularly spaced thereabout forming a surrounding space for the passage of cooling gas in a swirling path over the surface of the burner nozzle.

Inventors

  • 👤 Ali S Aejaz
  • 👤 R Shields

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 16:34
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/32

Claims Analysis

Total Claims: 17
Claim 1
Independent Claim 126 words
An incinerator for burning waste material comprising in combination: a. a combustion chamber having spaced end walls and a side wall with its central longitudinal axis extending between said end walls; b. inlet means for introducing waste material and air into said chamber in a manner effective for providing a vortical movement of said waste material toward one of said end walls; c. an exhaust flue having an open end opening into said combustion chamber near one end wall; and d. means for igniting said waste material during its vortical movement comprising a burner having a nozzle directed into the combustion chamber, said burner nozzle being provided with an enclosure annularly spaced thereabout whereby cooling gas can be passed over the surface of the burner nozzle.
Claim 2
Dependent Claim 126 words
An incinerator for burning waste material comprising in combination: a. a combustion chamber having spaced end walls and a side wall with its central longitudinal axis extending between said end walls; b. inlet means for introducing waste material and air into said chamber in a manner effective for providing a vortical movement of said waste material toward one of said end walls; c. an exhaust flue having an open end opening into said combustion chamber near one end wall; and d. means for igniting said waste material during its vortical movement comprising a burner having a nozzle directed into the combustion chamber, said burner nozzle being provided with an enclosure annularly spaced thereabout whereby cooling gas can be passed over the surface of the burner nozzle.
Claim 3
Dependent Claim 26 words
The incinerator of claim 1, further comprising means for effecting movement of the cooling gas in a swirling path over the surface of the burner nozzle.
Claim 4
Dependent Claim 63 words
The incinerator of claim 1, wherein the enclosure annularly spaced about the burner nozzle comprises a sleeve of a diameter larger than that of the said burner nozzle and which is positioned substantially concentrically around the said burner nozzle, thereby providing an intermediate space surrounding the burner nozzle for the passage of cooling gas therethrough and over the surface of the burner nozzle.
Claim 5
Dependent Claim 24 words
The incinerator of claim 3, wherein the burner nozzle is directed to fire substantially tangentially to the said side wall of the combustion chamber.
Claim 6
Dependent Claim 55 words
The incinerator of claim 4, wherein an annular plenum chamber surrounds the burner nozzle and communicates through at least one port with the said sleeve comprising the enclosure annularly spaced about the burner nozzle to feed cooling gas for passage through the surrounding space about the burner nozzle and over the surface of the nozzle.
Claim 7
Dependent Claim 64 words
The incinerator of claim 5, wherein the annular plenum chamber is connected with a source of cooling gas whereby said cooling gas is provided to said annular plenum chamber and in turn is fed into the said sleeve comprising the enclosure annularly spaced about the burner nozzle for passage through the surrounding space about the burner nozzle and over the surface of the nozzle.
Claim 8
Dependent Claim 74 words
The incinerator of claim 6, wherein the connection of the source of cooling gas to the annular plenum chamber enters said annular plenum chamber tangentially to thereby induce a swirling motion to the cooling gas entering said chamber whereby the cooling gas fed to the sleeve comprising the enclosure annularly spaced about the burner nozzle and passing through the surrounding space thereabout moves in a swirling path over the surface of the burner nozzle.
Claim 9
Dependent Claim 49 words
The incinerator of claim 1, wherein at least one fluid directing baffle is provided in the enclosure annularly spaced about the burner nozzle whereby cooling gas passing through said enclosure annularly spaced about the burner nozzle is directed in a swirling path over the surface of the burner nozzle.
Claim 10
Dependent Claim 49 words
The incinerator of claim 8, wherein the said baffle is attached to the combustion burner nozzle whereby the baffle functions as a cooling fin conducting heat away from the burner nozzle and dissipating the heat in the cooling gas passing through the enclosure annularly spaced about the burner nozzle.
Claim 11
Dependent Claim 60 words
The incinerator of claim 1, wherein at least one cooling fin is provided on the combustion burner nozzle projecting into the enclosure annularly spaced about the said combustion burner nozzle whereby said cooling fin conducts heat away from the burner nozzle and dissipates the heat in the cooling gas passing through the said enclosure annularly spaced about the burner nozzle.
Claim 12
Dependent Claim 277 words
An incinerator for burning waste material comprising in combination: a. a generally cylindrical combustion chamber having spaced end walls and an annular side wall with its central longitudinal axis extending between said end walls, said chamber being disposed such that its central axis extends substantially horizontally; b. inlet means for introducing a mixture of waste material and air under pressure into said chamber tangentially to said side wall in a manner effective for establishing a vortical movement of said waste material toward one of said end walls; c. an exhaust flue adjacent the other end wall of said combustion chamber positioned substantially concentric with the chamber''s longitudinal axis and having an open end opening into said combustion chamber; and d. combustion means for heating the combustion chamber and igniting said waste material during its vortical movement, comprising a burner having connections to a source of fluid fuel and to a source of air and having a substantially vertically positioned nozzle directed to fire downwardly into the combustion chamber suBstantially tangentially to its annular side wall, said burner nozzle having a surrounding annular plenum chamber connected with a source of cooling gas and an enclosure annularly spaced about the said burner nozzle comprising a sleeve of larger diameter positioned substantially concentrically thereabout and thereby providing a surrounding space about the burner nozzle with the said annular plenum chamber communicating with the said enclosure through at least one port whereby cooling gas from a source thereof can be fed from the said annular plenum chamber into said enclosure for passage through the surrounding space about the burner nozzle in a downward path over the surface of the burner nozzle.
Claim 13
Dependent Claim 277 words
An incinerator for burning waste material comprising in combination: a. a generally cylindrical combustion chamber having spaced end walls and an annular side wall with its central longitudinal axis extending between said end walls, said chamber being disposed such that its central axis extends substantially horizontally; b. inlet means for introducing a mixture of waste material and air under pressure into said chamber tangentially to said side wall in a manner effective for establishing a vortical movement of said waste material toward one of said end walls; c. an exhaust flue adjacent the other end wall of said combustion chamber positioned substantially concentric with the chamber''s longitudinal axis and having an open end opening into said combustion chamber; and d. combustion means for heating the combustion chamber and igniting said waste material during its vortical movement, comprising a burner having connections to a source of fluid fuel and to a source of air and having a substantially vertically positioned nozzle directed to fire downwardly into the combustion chamber suBstantially tangentially to its annular side wall, said burner nozzle having a surrounding annular plenum chamber connected with a source of cooling gas and an enclosure annularly spaced about the said burner nozzle comprising a sleeve of larger diameter positioned substantially concentrically thereabout and thereby providing a surrounding space about the burner nozzle with the said annular plenum chamber communicating with the said enclosure through at least one port whereby cooling gas from a source thereof can be fed from the said annular plenum chamber into said enclosure for passage through the surrounding space about the burner nozzle in a downward path over the surface of the burner nozzle.
Claim 14
Dependent Claim 82 words
The incinerator of claim 11 wherein the annular plenum chamber is connected with a source of cooling gas and the connection with the said source of cooling gas enters the annular plenum chamber tangentially to thereby induce a swirling motion to the cooling gas entering said chamber whereby cooling gas fed to the sleeve comprising the enclosure annularly spaced about the burner nozzle and passing through the surrounding space thereabout moves in a swirling path over the surface of the burner nozzle.
Claim 15
Dependent Claim 49 words
The incinerator of claim 11 wherein at least one fluid directing baffle is provided in the enclosure annularly spaced about the burner nozzle whereby cooling gas passing through said enclosure annularly spaced about the burner nozzle is directed in a swirling path over the surface of the burner nozzle.
Claim 16
Dependent Claim 50 words
The incinerator of claim 13 wherein the said baffle is attached to the combustion chamber burner nozzle whereby the baffle functions as a cooling fin conducting heat away from the burner nozzle and dissipating the heat in the cooling gas passing through the enclosure annularly spaced about the burner nozzle.
Claim 17
Dependent Claim 145 words
The incinerator of claim 11 wherein the annular plenum chamber is connected with a source of cooling gas the the connection with the said source of cooling gas enters the annular plenum chamber tangentially to thereby induce a swirling motion to the cooling gas entering said chamber, and wherein a plurality of fluid directing baffles are attached to the combustion burner nozzle projecting into the enclosure annularly spaced about the said combustion burner nozzle, whereby a swirling motion is induced to the cooling gas entering the plenum chamber and the cooling gas passing through the enclosure annularly spaced about the burner nozzle is directed in a swirling path over the surface of the burner nozzle while the baffles conduct heat away from the said burner nozzle and dissipates the heat in the cooling gas passing through the said enclosure annularly spaced about the burner nozzle.

References Cited (Backward Citations)

US3396881A Cited
US3489108A Cited
US3482533A Cited
US3631823A Cited
US3658017A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-11-12 1977-05-14 1977-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-11-12 1981-05-14 1981-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-11-12 1985-05-14 1985-11-13 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag