US2601299A - Radiant gas burner - Google Patents

Radiant gas burner Download PDF

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US2601299A
US2601299A US769274A US76927447A US2601299A US 2601299 A US2601299 A US 2601299A US 769274 A US769274 A US 769274A US 76927447 A US76927447 A US 76927447A US 2601299 A US2601299 A US 2601299A
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burner
radiant
casing
sheet
discharge
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Kennedy Walter
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12Radiant burners
    • F23D14/125Radiant burners heating a wall surface to incandescence

Definitions

  • This invention relates'to burners, designed primarily for use in what are generally termed Gas Burners. Still more particularly, the invention deals with what may be termed a burner element, constructed from sheet metal parts, fashioned and assembled to form a plurality of laterally extending and longitudinally spaced burner nozzles.
  • a burner element constructed from sheet metal parts, fashioned and assembled to form a plurality of laterally extending and longitudinally spaced burner nozzles.
  • Fig. l is a cross sectional View through a burner element, made according to my invention and illustrating a method of its use.
  • Fig. 2 is a longitudinal section through the burner element, on the line 2-2 of Fig. 1.
  • Fig. 3 is a plan view of the structure of the burner element, shown in Figs. 1 and 2, with part of the structure omitted and with part broken away.
  • Fig. l ⁇ is a view similar to Fig. 3, showing a modification
  • Fig. 5 is a view similar to Fig. 2, showing another fcrm of construction.
  • My invention deals with a burner device or burner element adapted for use in connection with gas appliances or gas iired apparatus of any type or kind.
  • One of the features of my invention is to provide a burner element which is simple and economical in construction and which by reason of its structure will produce efficient burner operations, by reason of the nozzle discharges provided at opposed side edges or walls of the burner element. Further, it is the purpose of my invention to provide a burner element wherein the distribution of the flame may be controlled to produce the desired heating effects or distribution of heat in the appliance or apparatus in connection with which the burner is used.
  • FIGs. 1 to 3 inclusive I have shown at I0, one form of burner element which I employ.
  • This element comprises an elongated casing portion II having a top wall I2, two side walls I3, said walls terminating at the lower ends in outwardly extending flanges I4.
  • the lower opening of the casing between the side walls I3 is closed by a bottom wall or nozzle plate I5, the width of the plate being equal to the over-all width of the flange portions I4 on the casing I0.
  • the nozzle plate I5 is folded transversely to pro say what might be termed a corrugated portion throughout the major part of the length of the casing IU, the corrugated portions forming upon the flanges I4, a series of longitudinally spaced nozzle discharges I6, each nozzle discharge or corrugation being defined by an outer wall Il having diverging side walls I8. That part of the sheet I5 between each corrugation, namely, the parts I9, seat snugly upon the iianges I4 and are welded or otherwise secured thereto, as indicated in Fig. 3, at 2D.
  • One end of the casing I is closed by an end wall 2I, as indicated in Fig. 2 of the drawing, whereas the other end of the casing is open, as seen at 22, and this open end has a anged portion 23 attached thereto for mounting of the burner element.
  • the gas and air mixture that is to say, the com- ⁇ bustible mixture enters the casing IIJ through the opening 22, through any suitable means cornmonly employed in ranges, burners and the like appliances or apparatus, and then is discharged through the nozzle I6 at opposed side edges of the element I0.
  • the radiant comprises an elongated body of considerably greater Width than the casing II and having centrally of the lower surface thereof, a recess 24 for the reception of the casing II.
  • the radiant has longitudinal seats 25 upon which the flanges I4 rest. Beyond the seats 25, the radiant has elongated channels 26 and in the channels 26, the radiant has transversely and,
  • FIG. 4 of the drawing I have shown a different formation of burner element I 9', having a casing portion I I' and ilanges It', similar to the casing II and anges I4 of the structure .shown in Figs. 1 to 3 inclusive.
  • the primary difference in Fig. 4 is in the formation of the nozzle plate and here a nozzle plate 3E) is employed, which diiTers from the plate i5 in having the corrugations Si of tapered form, rather than the straight form shown in Figs. 1 to 3.
  • Between the corrugations 3i are wall portions 322, similar to the walls I9, which are welded to the anges lli', as indicated at 33.
  • This construction provides wide discharge nozzles 3d at one side 0i the burner ⁇ element and narrow nozzle discharges 35 at the other side thereof.
  • Burner elements-of this type and kind may be utilized to control distribution of heat and when a number of burner elements are employed in a complete assemblage, the wide discharge 3ft of one element may be directed toward the narrow discharge 35 of an adjacent element.
  • two narrow discharges may be directed toward each other and two wide discharges directed toward each other..
  • several units such as seen in Fig. 1 of the drawing may be arranged side by side in forming a complete burner, bedffor a gas range, heater or any other type of appliance or apparatus.
  • theparts of the-burner element are made from suitable sheet r metal which will withstand the temperature and which will avoid burning-out, particularly of the nozzledischarges.
  • suitable sheet r metal which will withstand the temperature and which will avoid burning-out, particularly of the nozzledischarges.
  • Vstainless steel will be suitable for this purpose.
  • VA positive control is provided for the nozzle discharges by control offthe-corrugations formed in the., nozzle sheet andv by Varying the depth, Width and/or contour'of the corrugations, burner elements suitable for any condition ⁇ can be pro-A cuted in a simple, practical and economical manner.
  • the-burner element ma-yl be of any shape or forni, dependingV upon the usesv intended. However, in all instances, discharges willv be provided at opposite sides or" the fuel tube. It will also he apparent that by constructing burner elements from thin sheet metalof the type and kindunder consideration, and: utilizing them inf the manner illustrated, for example, in Fig. the burner element itself is-kept from excessive heat, and in fact its structure and contour produces a more or less lt will be-under-l stood' that thestructure of Fig. 5 is applicable 4 natural cooling effect. Cooling in the sense here given is with respect to the normal high temperatures of the burner flame or products of combustion rising directly from the flame.
  • a burner element of the character described comprising an elongated sheet metal casing forming an inverted channel having a horizontal wall and depending sidewalls, said casing being open at one end, the lower edge of each side wall having a laterally extending flange, an independent sheet forming a bottom wall of theV casing, said sheet extending onto and covervrugations engaging said flanges to form thin discharge nozzles spaced longitudinally of said edges for.: discharging fuel'. from the casing, and the corrugations o1" said sheet tapering fromone side edge of' the sheet to the other to formfnar'- row and wide discharge nozzlesat opposed' sides ofthe burner element.
  • an elongatedradiant comprising an elongated top wall having an elongated' depending central Vportion and side walls both extending substantially the full length thereof, saidV side walls forming, with the centrallpontion, combustion chambers opening downwardlyat sideportions ofthe radiant, said topfwall having a multiplicityvof discharge apertures therethrough and distributed longitudinally of theVV radiant and communicating with said chambers, the central portion of the radiant having, onits lower surface, a deep longitudinal recess, of a burner element, the major portion of which is mounted in the recess-of saidV radiant andl disposed intermediate said' chambers, andV saidzelementhaving, atside edges thereof, outwardly-v extending thin wall dat nozzles arranged upon the lower surface of said central portion andin alinement with side edges of said central portion for discharge of fuel from said element into:the chambers'of said radiant;
  • annelongatedradiant comprising an elongated top wall. having a depending central portion and side wallsAV both ex.- tending substantially' the full lengththereof, said ⁇ sidewalls forming, with the central portion, combustion chambers opening downwardly at side portions of the radiantsaid top wallhavingv a ⁇ multiplicity of discharge apertures therethrough anddistributed longitudinally of the radiantA andrv saidradiant, said nozzles comprisingsheet'metal' parts, one of said parts being corrugated to form the discharge openings of said nozzles', andthe oisetting ofthe corrugations of said sheet varying longitudinally thereof to vary'the-area-of said discharge openings.
  • the combination with elonffatedradiant comprising an elongated top wall havingV a dcpending central portion and side walls both extending substantially the full length thereof, said side walls forming, with the central portion, cornbustion chambers opening downwardly at side portions of the radiant, said top Wall forming a multiplicity of discharge apertures therethrough and distributed longitudinally of the radiant and communicating with said chambers, the central portion of the radiant having, on its lower surface, a deep longitudinal recess, of a burner element, the major portion of Iwhich is mounted in the recess of said radiant and disposed intermediate said chambers, said element having, at side edges thereof, outwardly extending thin walled flat nozzles arranged upon the lower surface of said central portion and in alinement with side edges of said central portion for discharge of fuel from said element into the chambers of said radiant, said element comprising two sheet metal parts, one of the parts being corrugated to form the discharge openings of said nozzles, and said corrugations being tapered.
  • a burner unit for radiants having on the lower surface thereof an elongated recess, in which a burner unit is adapted to be mounted, said unit comprising two elongated sheet metal parts, one part comprising an inverted deep channel having depending parallel side walls, said side Walls having laterally extending flanges having parallel edges, the other part being transversely straight throughout its length and closing said channel and arranged upon and secured to the flanges of the first part at longitudinally spaced intervals, said straight part having edges in alinement with the edges of said flanges, said straight part comprising a sheet corrugated transversely for the full width of the sheet, the corrugations of said sheet intermediate the secured intervals, forming in conjunction with said anges, thin discharge nozzles for discharging fuel from said casing, an end wall closing one end of the channel of the unit, and the other end. of the unit being open for admission of combustible gases into said channel.

Description

W. KENNEDY RADIANT GAS BURNER Filed Aug. 18, 1947 June 24, 1952 ATTORN'Y INVENTOR Y h/HL 727? /r/E/V/VEDY BY Y %wf% Patented June 24, 1952 UNITED .STATES PATENT OFFICE RADIANT GAS BURNER Walter Kennedy, Clifside Park, N. J.
Application August 18, 1947, Serial No. 769,274
Claims.
This invention relates'to burners, designed primarily for use in what are generally termed Gas Burners. Still more particularly, the invention deals with what may be termed a burner element, constructed from sheet metal parts, fashioned and assembled to form a plurality of laterally extending and longitudinally spaced burner nozzles. The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed, and in which the separate parts are designated by suitable reference characters in each of the views; and in which:
Fig. l is a cross sectional View through a burner element, made according to my invention and illustrating a method of its use.
Fig. 2 is a longitudinal section through the burner element, on the line 2-2 of Fig. 1.
Fig. 3 is a plan view of the structure of the burner element, shown in Figs. 1 and 2, with part of the structure omitted and with part broken away.
Fig. l` is a view similar to Fig. 3, showing a modification; and
Fig. 5 is a view similar to Fig. 2, showing another fcrm of construction.
My invention deals with a burner device or burner element adapted for use in connection with gas appliances or gas iired apparatus of any type or kind. One of the features of my invention is to provide a burner element which is simple and economical in construction and which by reason of its structure will produce efficient burner operations, by reason of the nozzle discharges provided at opposed side edges or walls of the burner element. Further, it is the purpose of my invention to provide a burner element wherein the distribution of the flame may be controlled to produce the desired heating effects or distribution of heat in the appliance or apparatus in connection with which the burner is used.
In Figs. 1 to 3 inclusive, I have shown at I0, one form of burner element which I employ. This element comprises an elongated casing portion II having a top wall I2, two side walls I3, said walls terminating at the lower ends in outwardly extending flanges I4. The lower opening of the casing between the side walls I3 is closed by a bottom wall or nozzle plate I5, the width of the plate being equal to the over-all width of the flange portions I4 on the casing I0. The nozzle plate I5 is folded transversely to pro duce what might be termed a corrugated portion throughout the major part of the length of the casing IU, the corrugated portions forming upon the flanges I4, a series of longitudinally spaced nozzle discharges I6, each nozzle discharge or corrugation being defined by an outer wall Il having diverging side walls I8. That part of the sheet I5 between each corrugation, namely, the parts I9, seat snugly upon the iianges I4 and are welded or otherwise secured thereto, as indicated in Fig. 3, at 2D.
It will be understood that the depth or offsetting of the corrugations defined by the Walls I I--I 8, will control the thickness of the nozzle discharges I6. In the present drawing, the thicknesses have been slightly exaggerated for clearness in the illustration. However, the size of the nozzle passages will govern the use to which the burner is applied. l
One end of the casing I is closed by an end wall 2I, as indicated in Fig. 2 of the drawing, whereas the other end of the casing is open, as seen at 22, and this open end has a anged portion 23 attached thereto for mounting of the burner element. It will be understood that the gas and air mixture, that is to say, the com-` bustible mixture enters the casing IIJ through the opening 22, through any suitable means cornmonly employed in ranges, burners and the like appliances or apparatus, and then is discharged through the nozzle I6 at opposed side edges of the element I0.
In Fig. l of the drawing I have illustrated one adaptation and use of a burner element, insofar as mounting in connection with a radiant is concerned. In Fig. 1, the radiant comprises an elongated body of considerably greater Width than the casing II and having centrally of the lower surface thereof, a recess 24 for the reception of the casing II. At opposite sides of the recess 24, the radiant has longitudinal seats 25 upon which the flanges I4 rest. Beyond the seats 25, the radiant has elongated channels 26 and in the channels 26, the radiant has transversely and,
longitudinally spaced radiant pins 21 of conical formation. Between these pins the radiant has discharge apertures 23 which places the channels 26 in communication with the outer surface 29 or top of the radiant so that products of combustion are free to rise vertically through the apertures 28.
In Fig. 4 of the drawing I have shown a different formation of burner element I 9', having a casing portion I I' and ilanges It', similar to the casing II and anges I4 of the structure .shown in Figs. 1 to 3 inclusive. The primary difference in Fig. 4, is in the formation of the nozzle plate and here a nozzle plate 3E) is employed, which diiTers from the plate i5 in having the corrugations Si of tapered form, rather than the straight form shown in Figs. 1 to 3. Between the corrugations 3i are wall portions 322, similar to the walls I9, which are welded to the anges lli', as indicated at 33. This construction provides wide discharge nozzles 3d at one side 0i the burner` element and narrow nozzle discharges 35 at the other side thereof. Burner elements-of this type and kind may be utilized to control distribution of heat and when a number of burner elements are employed in a complete assemblage, the wide discharge 3ft of one element may be directed toward the narrow discharge 35 of an adjacent element. On the other hand, two narrow discharges may be directed toward each other and two wide discharges directed toward each other.. In` this connection, it will be understood that several units, such as seen in Fig. 1 of the drawing may be arranged side by side in forming a complete burner, bedffor a gas range, heater or any other type of appliance or apparatus.
Considering Fig. 1 of the. drawing, it will here be noted that the outer boundary walls: 35 of the channels Ziare of, less depth-than the seats- 'Z so that the nozzle discharges, as at' l6- will' be below the walls 56'. Aside from the tapered structure of the nozzle plate 35', as above described, the structure of Fig. l isthe same as- Ythat shown in Figs. 1 to 3 scription thereof` will be made.
and no further detothe element shown in Figs. 1 to 3, as well as that shown iii-FigS 4.
From-a standpoint of construction, theparts of the-burner element are made from suitable sheet r metal which will withstand the temperature and which will avoid burning-out, particularly of the nozzledischarges. For example, I haveound that' Vstainless steel will be suitable for this purpose. By constructing the burner element ofthe two sheetl metal parts, the same may not only be accurately, but economically produced.
VA positive control is provided for the nozzle discharges by control offthe-corrugations formed in the., nozzle sheet andv by Varying the depth, Width and/or contour'of the corrugations, burner elements suitable for any condition` can be pro-A duced in a simple, practical and economical manner.
Itv will be understood that the-burner element ma-yl be of any shape or forni, dependingV upon the usesv intended. However, in all instances, discharges willv be provided at opposite sides or" the fuel tube. It will also he apparent that by constructing burner elements from thin sheet metalof the type and kindunder consideration, and: utilizing them inf the manner illustrated, for example, in Fig. the burner element itself is-kept from excessive heat, and in fact its structure and contour produces a more or less lt will be-under-l stood' that thestructure of Fig. 5 is applicable 4 natural cooling effect. Cooling in the sense here given is with respect to the normal high temperatures of the burner flame or products of combustion rising directly from the flame.
Having fully described my invention, what l. claim as new and desire to secure by Letters Patent is:
1. A burner element of the character described, comprising an elongated sheet metal casing forming an inverted channel having a horizontal wall and depending sidewalls, said casing being open at one end, the lower edge of each side wall having a laterally extending flange, an independent sheet forming a bottom wall of theV casing, said sheet extending onto and covervrugations engaging said flanges to form thin discharge nozzles spaced longitudinally of said edges for.: discharging fuel'. from the casing, and the corrugations o1" said sheet tapering fromone side edge of' the sheet to the other to formfnar'- row and wide discharge nozzlesat opposed' sides ofthe burner element.
2; The combination with an elongatedradiant, comprising an elongated top wall having an elongated' depending central Vportion and side walls both extending substantially the full length thereof, saidV side walls forming, with the centrallpontion, combustion chambers opening downwardlyat sideportions ofthe radiant, said topfwall having a multiplicityvof discharge apertures therethrough and distributed longitudinally of theVV radiant and communicating with said chambers, the central portion of the radiant having, onits lower surface, a deep longitudinal recess, of a burner element, the major portion of which is mounted in the recess-of saidV radiant andl disposed intermediate said' chambers, andV saidzelementhaving, atside edges thereof, outwardly-v extending thin wall dat nozzles arranged upon the lower surface of said central portion andin alinement with side edges of said central portion for discharge of fuel from said element into:the chambers'of said radiant;
3. The combination with annelongatedradiant, comprising an elongated top wall. having a depending central portion and side wallsAV both ex.- tending substantially' the full lengththereof, said` sidewalls forming, with the central portion, combustion chambers opening downwardly at side portions of the radiantsaid top wallhavingv a` multiplicity of discharge apertures therethrough anddistributed longitudinally of the radiantA andrv saidradiant, said nozzles comprisingsheet'metal' parts, one of said parts being corrugated to form the discharge openings of said nozzles', andthe oisetting ofthe corrugations of said sheet varying longitudinally thereof to vary'the-area-of said discharge openings.
(l. The combination with elonffatedradiant, comprising an elongated top wall havingV a dcpending central portion and side walls both extending substantially the full length thereof, said side walls forming, with the central portion, cornbustion chambers opening downwardly at side portions of the radiant, said top Wall forming a multiplicity of discharge apertures therethrough and distributed longitudinally of the radiant and communicating with said chambers, the central portion of the radiant having, on its lower surface, a deep longitudinal recess, of a burner element, the major portion of Iwhich is mounted in the recess of said radiant and disposed intermediate said chambers, said element having, at side edges thereof, outwardly extending thin walled flat nozzles arranged upon the lower surface of said central portion and in alinement with side edges of said central portion for discharge of fuel from said element into the chambers of said radiant, said element comprising two sheet metal parts, one of the parts being corrugated to form the discharge openings of said nozzles, and said corrugations being tapered.
5. A burner unit for radiants having on the lower surface thereof an elongated recess, in which a burner unit is adapted to be mounted, said unit comprising two elongated sheet metal parts, one part comprising an inverted deep channel having depending parallel side walls, said side Walls having laterally extending flanges having parallel edges, the other part being transversely straight throughout its length and closing said channel and arranged upon and secured to the flanges of the first part at longitudinally spaced intervals, said straight part having edges in alinement with the edges of said flanges, said straight part comprising a sheet corrugated transversely for the full width of the sheet, the corrugations of said sheet intermediate the secured intervals, forming in conjunction with said anges, thin discharge nozzles for discharging fuel from said casing, an end wall closing one end of the channel of the unit, and the other end. of the unit being open for admission of combustible gases into said channel.
WALTER KENNEDY.
REFERENCES CITED The following references are of record in the file of this patenti UNITED STATES PATENTS Number Name Date 1,842,227 Wirth Jan. 19, 1932 2,023,624 Tullis Deo. 10, 1935 2,070,111 Blaney Feb. 9 1937 2,142,014 Zink Dec. 27, 1938 2,170,139 Goodale Aug. 2,2, 1939 2,235,635 Herman Mar. 18, 1941 2,255,349 Christmas Sept. 9, 1941 2,348,011 Koppel May 2, 1944 2,372,953 Hurlbut et al Apr. 3, 1945 2,494,243 Houllis Jan. 10, 1950 FOREIGN PATENTS Number Country Date 378,528 Germany July 18, 1923 487,445 Great Britain June 21, 1938
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723617A (en) * 1952-01-23 1955-11-15 Eugene G Dreyfus Broiler rack
US3247838A (en) * 1964-02-24 1966-04-26 Whirlpool Co Fuel burner
US3847536A (en) * 1972-05-08 1974-11-12 Antargaz Radiant burner operating at high temperature
US4432727A (en) * 1982-09-21 1984-02-21 Joseph Fraioli Gas-fired infrared projection heater
US4662349A (en) * 1985-08-07 1987-05-05 Dart Industries Inc. Barbecue grill
US20150101593A1 (en) * 2013-10-11 2015-04-16 Electrolux Home Products, Inc. Broil baffle for an oven

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE378528C (en) * 1922-10-27 1923-07-18 Gustav Launhardt Fa Gas burners, especially for central heating, boilers or the like.
US1842227A (en) * 1927-12-24 1932-01-19 Sulzer Ag Ignition device for use with fire grates burning solid fuels
US2023624A (en) * 1933-11-03 1935-12-10 Coleman Lamp & Stove Co Burner
US2070111A (en) * 1934-02-23 1937-02-09 Charles V Blayney Broiling device
GB487445A (en) * 1937-03-17 1938-06-21 Frederick Otto Horstmann Improvements in gas pokers
US2142014A (en) * 1937-12-02 1938-12-27 John S Zink Gas burning means
US2170139A (en) * 1937-02-08 1939-08-22 Uel R Goodale Gas burner
US2235635A (en) * 1939-07-24 1941-03-18 Detroit Michigan Stove Company Burner structure
US2255349A (en) * 1939-01-21 1941-09-09 Robert P Sniffen Burner
US2348011A (en) * 1940-05-18 1944-05-02 Smith Corp A O Sheet metal gas burner
US2372953A (en) * 1940-12-27 1945-04-03 Rheem Mfg Co Burner
US2494243A (en) * 1944-07-31 1950-01-10 Louis D Houlis Pressure ribbon-type gas burner

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE378528C (en) * 1922-10-27 1923-07-18 Gustav Launhardt Fa Gas burners, especially for central heating, boilers or the like.
US1842227A (en) * 1927-12-24 1932-01-19 Sulzer Ag Ignition device for use with fire grates burning solid fuels
US2023624A (en) * 1933-11-03 1935-12-10 Coleman Lamp & Stove Co Burner
US2070111A (en) * 1934-02-23 1937-02-09 Charles V Blayney Broiling device
US2170139A (en) * 1937-02-08 1939-08-22 Uel R Goodale Gas burner
GB487445A (en) * 1937-03-17 1938-06-21 Frederick Otto Horstmann Improvements in gas pokers
US2142014A (en) * 1937-12-02 1938-12-27 John S Zink Gas burning means
US2255349A (en) * 1939-01-21 1941-09-09 Robert P Sniffen Burner
US2235635A (en) * 1939-07-24 1941-03-18 Detroit Michigan Stove Company Burner structure
US2348011A (en) * 1940-05-18 1944-05-02 Smith Corp A O Sheet metal gas burner
US2372953A (en) * 1940-12-27 1945-04-03 Rheem Mfg Co Burner
US2494243A (en) * 1944-07-31 1950-01-10 Louis D Houlis Pressure ribbon-type gas burner

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2723617A (en) * 1952-01-23 1955-11-15 Eugene G Dreyfus Broiler rack
US3247838A (en) * 1964-02-24 1966-04-26 Whirlpool Co Fuel burner
US3847536A (en) * 1972-05-08 1974-11-12 Antargaz Radiant burner operating at high temperature
US4432727A (en) * 1982-09-21 1984-02-21 Joseph Fraioli Gas-fired infrared projection heater
US4662349A (en) * 1985-08-07 1987-05-05 Dart Industries Inc. Barbecue grill
US20150101593A1 (en) * 2013-10-11 2015-04-16 Electrolux Home Products, Inc. Broil baffle for an oven
US9677773B2 (en) * 2013-10-11 2017-06-13 Electrolux Home Products, Inc. Broil baffle for an oven

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