Mixer And Flame Holder Patents (Class 431/354)
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Patent number: 6718968Abstract: A burner and fan enclosure for an infrared heater includes a low pressure housing 10 with an internal high pressure housing 24. A centrifugal fan 39 is located within the low pressure housing 10 and provides combustion air to the high pressure housing 24. Removable side panels 20,22 for the low pressure housing 10 may be removed for servicing and/or adjustment of the unit without affecting combustion characteristics allowing the unit to be adjusted while in operation.Type: GrantFiled: December 6, 2001Date of Patent: April 13, 2004Assignee: Modine Manufacturing CompanyInventors: Robert S. Cooley, Jill M. Szczech, Gary A. Smith
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Patent number: 6712605Abstract: Gas burner for a cooking hob, comprising a burner body provided with a plurality of openings for entry of primary air, a flame-dividing element which defines together with the burner body and air/gas mixing chamber, a gas injector which is mounted on the cooking hob, for injecting gas inside the mixing chamber, and a converging/diverging duct which defines a Venturi tube located downstream of the gas injector for drawing air into the mixing chamber. In accordance with the present invention, the burner body, the flame-dividing element and the converging/diverging duct consist of a single monolithic structure in the form of a pressed sheet-metal casing.Type: GrantFiled: May 31, 2002Date of Patent: March 30, 2004Inventor: Paolo Moresco
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Publication number: 20040058287Abstract: Embodiments of the present invention are directed to apparatus and methods of supplying a diluted process gas into a diffusion furnace for forming an oxide layer on a substrate in the diffusion furnace. One or more inlet gases are supplied into a chamber, and are heated in the chamber to generate an oxidizing gas such as steam. A dilution gas is flowed through a dilution gas line which extends through the chamber to permit heating of the dilution gas by the heat in the chamber without mixing the dilution gas and the oxidizing gas in the chamber. The oxidizing gas and the heated dilution gas are mixed downstream of the chamber prior to entry into the diffusion furnace.Type: ApplicationFiled: September 25, 2002Publication date: March 25, 2004Applicant: SilTerra Malaysia Sdn. Bhd.Inventors: Kader Ibrahim, Umasangar V. Pillai, Joon Ho Joung
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Patent number: 6705855Abstract: Provision of a low-NOx burner allowed to further reduce NOx only by structural design of the burner in comparison with prior art. The low-NOx burner comprises a main nozzle 13 for injecting a premixture formed by mixing fuel and an oxidizer, and a secondary flame-holding nozzle 12A for making a premixture or an oxidizer impinge on the premixture injected from the main nozzle 13, in a direction at an approximately right angle to the injection direction of the main nozzle 13.Type: GrantFiled: December 20, 2000Date of Patent: March 16, 2004Assignee: Tokyo Gas Co., Ltd.Inventors: Satoshi Nagayama, Shin Shizukuishi
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Publication number: 20040048214Abstract: A torch lighter includes a fuel nozzle assembly provided for vaporizing the fuel released therefrom to a high-pressured gaseous fuel to emit to the ignition chamber, wherein the vaporizer assembly includes a torch head, which is provided at an emitting end of a nozzle body and supported within a combustion housing, having a root chamber having a size larger than the size of the emitting end of the nozzle body to form a gas stabilizing reservoir to ensure a collective and stable flow of the mixture gas, and two or more elongated nozzle ducts each having an ignition end and a root end extended to a ceiling of the root chamber, wherein a mixture gas ejected from the two ignition ends is ignited in the ignition chamber to form two torches soaring away from the two ignition ends of the two nozzle ducts.Type: ApplicationFiled: September 8, 2003Publication date: March 11, 2004Inventor: Chi Lam Wong
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Publication number: 20040048215Abstract: A torch lighter includes a fuel nozzle assembly provided for vaporizing the fuel released therefrom to a high-pressured gaseous fuel to emit to the ignition chamber, wherein the vaporizer assembly includes a torch head, which is provided at an emitting end of a nozzle body and supported within a combustion housing, having a root chamber having a size larger than the size of the emitting end of the nozzle body to form a gas stabilizing reservoir to ensure a collective and stable flow of the mixture gas, and two or more elongated nozzle ducts each having an ignition end and a root end extended to a ceiling of the root chamber, wherein a mixture gas ejected from the two ignition ends is ignited in the ignition chamber to form two torches soaring away from the two ignition ends of the two nozzle ducts.Type: ApplicationFiled: September 10, 2003Publication date: March 11, 2004Inventor: Chi Lam Wong
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Publication number: 20040048216Abstract: A gas burner (100) is described including a variable speed fan (104) controlled to give an optimum gas/air mixture. The control is provided using a microprocessor with the gas valve position or measured characteristics of the output flame as feedback. The gas burners includes improved outlet slots to ensure optimum flame contact with a cooking vessel.Type: ApplicationFiled: July 14, 2003Publication date: March 11, 2004Inventors: Simon Denzil Brown, Takemasa Hanada, Maria May Brenmuhl
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Patent number: 6699036Abstract: The present invention provides a burner tube. The burner tube has a proximal segment, a distal segment, a terminal end, and a plurality of fuel outlet ports. The proximal segment has a union region and is adapted to be connected to a fuel source. The terminal end of the burner tube is connected to the union region such that the terminal end is in fluid communication with the union region. The connection between the terminal end and union region forms a continuous burner tube, or a burner loop for the flow of fuel. An initial flow of fuel diverges in the union region into a first portion and a second portion. The first portion flows through the union region and downstream through the distal segment. The second portion of fuel from the fuel source flows through the union region and downstream through the terminal end.Type: GrantFiled: May 6, 2002Date of Patent: March 2, 2004Assignee: Weber-Stephen Products CompanyInventors: Erich J. Schlosser, Adrian A. Bruno, Mohammed Shoeb
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Publication number: 20040038167Abstract: Gas burner for a dryer including a gas nozzle for receiving, and injecting gas, a mixing tube for mixing the gas injected from the gas nozzle and primary air, igniter fitted to an outlet of the mixing tube for igniting the gas mixed with the primary air coming out of the outlet of the mixing tube, and a flame holder fitted to the outlet of the mixing tube having flame holes for splitting, and ejecting the gas mixed with the primary air in burning the gas, thereby forming shorter flame lengths, and securing stability of the flame by enhancing an initial igniting capability, and splitting the flame into many parts to increase introduction of secondary air into the flame.Type: ApplicationFiled: March 14, 2003Publication date: February 26, 2004Inventor: In Hee Han
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Publication number: 20040031479Abstract: A portable artificial campfire device includes a burner element having a gas entry port and including a surface area having plurality of orifices of varying density formed in and dispersed throughout the burner element. An adjustable gas valve is coupled to the entry port of the burner element to control the flow of gas into the burner element. The burner element is easily adaptable for placement into existing campground facilities including man made campfire rings. The adjustable gas valve is adapted for receiving pressurized gas from a pressurized gas fuel source and for controlling the flow of pressurized gas to the burner element. The adjustable gas valve in combination with the plurality of orifices can affect the height and intensity of flames emanating from orifices formed within the burner element's surface by controlling of gas flowing into the burner element and out of the orifices. The burner element can be formed from tubular steel into a spiral.Type: ApplicationFiled: July 14, 2003Publication date: February 19, 2004Inventor: Michael E. Davis
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Publication number: 20040033458Abstract: A burner (1), fed with a mixture of fuel and air, comprising a body (2) consisting of two half-shells having a plane of symmetry, inside said body a Venturi tube (3) being defined, provided with and inlet (4) into which said mixture of fuel and air is introduced, said Venturi tube (3) communicating upwardly with a distributing chamber (5) of said mixture of fuel and air, said distributing chamber (5) communicating upwardly with a burner head (8), closed upwardly by a diffuser (9), on which openings are made for the outflow and the subsequent combustion of said mixture of fuel and air, said distributing chamber (5) exhibits a first portion (6) and a second portion (7), said first portion (6), communicating with said Venturi tube, comprising at least a first stretch (6a; 6c; 6e) having a cross section of substantially constant width and at least a second stretch (6b; 6d) having cross section that increases progressively along a direction parallel to said plane of symmetry towards an end of said distributing chaType: ApplicationFiled: September 3, 2003Publication date: February 19, 2004Inventors: Giorgio Buccilli, Luca Barozzi, Feliciano Lasagni, Dandro Lugli
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Publication number: 20040029062Abstract: A torch and mounting system therefor has a cylindrical main glass tube surrounded by a tough and rigid tube. The metallic tube is threaded at each end for receiving compression nuts, each having a ferrule such as an O-ring or a tapered ring inside. Each ferrule is a slip fit over the main glass tube and has an angled surface that butts against the end of the metallic tube. When the nuts are tightened, the sloped surfaces of the ferrules force the ferrules against the main glass tube, thereby fixing it in place within the metal tube. The metal tube in turn is clamped by a mounting clamp which is, in turn, mounted to an adjustment stage for optimum positioning of the torch. A support rail has adjustably mounted thereon one or more strain relieving clamps for holding gas or vapor delivery tubes in place to insure proper delivery of gases and vapors to the torch.Type: ApplicationFiled: August 9, 2002Publication date: February 12, 2004Applicant: Fitel USA Corp.Inventor: Tadeusz Olewicz
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Publication number: 20040029063Abstract: The invention relates to a burner (1) for cookers, suitable for burning gas, comprising at least two gas crowns, of which one central one and at least one circumferential one, a mixing chamber (13) with Venturi effect, ducts for entry of the primary air and radial ducts (9) for feeding the gas/primary air mixture to the said at least one circumferential crown, comprising a body (3), a head (2) and a separation element (4) that breaks up the internal space into ducts for entry of the primary air and ducts for distribution of the gas/primary air mixture.Type: ApplicationFiled: July 30, 2003Publication date: February 12, 2004Inventor: Angelo Bettinzoli
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Patent number: 6688882Abstract: A gas burner forces a premixing of the incoming gas with ambient air by moving the front face of the gas orifice upstream from the normal location and spacing it from the front face of the venturi portion of the burner. The premix air is pulled through the gap formed thereby and enters the venturi section with the gas via a central opening. Primary mixing air flows through separate opening(s). Both the gas and the premix air flow through the central opening, and the premix air at least partially combines with the gas before the primary air combines with the gas in the venturi. The combination of the gas, the premix air, and the primary air the routed to the output ports for combustion. Such a burner combusts the gas with an efficiency factor of at least forty-five, and optionally at a rate of at least 30,000 Btu/hr.Type: GrantFiled: December 23, 2002Date of Patent: February 10, 2004Assignee: Middleby-Marshall, Inc.Inventor: Rafé Tierra Williams
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Patent number: 6688881Abstract: A torch and mounting system therefor has a cylindrical main glass tube surrounded by a tough and rigid tube. The metallic tube is threaded at each end for receiving compression nuts, each having a ferrule such as an O-ring or a tapered ring inside. Each ferrule is a slip fit over the main glass tube and has an angled surface that butts against the end of the metallic tube. When the nuts are tightened, the sloped surfaces of the ferrules force the ferrules against the main glass tube, thereby fixing it in place within the metal tube. The metal tube in turn is clamped by a mounting clamp which is, in turn, mounted to an adjustment stage for optimum positioning of the torch. A support rail has adjustably mounted thereon one or more strain relieving clamps for holding gas or vapor delivery tubes in place to insure proper delivery of gases and vapors to the torch.Type: GrantFiled: August 9, 2002Date of Patent: February 10, 2004Assignee: Fitel USA Corp.Inventor: Tadeusz Olewicz
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Patent number: 6679699Abstract: Gas burner for a cooker, comprising a burner head bounded by an approximately frustoconical peripheral side wall with a small cross section located at the top and including a multiplicity of slots distributed peripherally and forming flame orifices, said burner head being topped by a cover or cap; the side wall 2′ has an angle of inclination &agr; to the vertical of about 10 to 20°, and the bottom 8′ of each slot 3 forming a flame orifice, which extends transversely to the side wall, has an angle of inclination &bgr; to the horizontal of about 20° to 30°.Type: GrantFiled: September 18, 2002Date of Patent: January 20, 2004Assignee: SourdillonInventors: Pierre Siu Hun Yam, Bernard Dane
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Patent number: 6672862Abstract: An apparatus is provided including a furnace structure defining a reaction chamber in which oxidant and fuel are reacted to form combustion products and having an anchor surface having an opening through which the oxidant and fuel are introduced into the reaction chamber. The reaction chamber is configured to recirculate the combustion products back toward the anchor surface. The apparatus also includes an anchor outlet configured to create a layer of combustion products directed along the anchor surface under the influence of the recirculated combustion products. The apparatus further includes a primary outlet configured to direct primary fuel to flow into the reaction chamber through the opening and the layer of combustion products so as to ignite the primary fuel.Type: GrantFiled: January 5, 2001Date of Patent: January 6, 2004Assignee: North American Manufacturing CompanyInventors: Thomas B. Neville, Thomas F. Robertson, Brian J. Schmotzer
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Patent number: 6672302Abstract: A gas burner has a gas distribution section, an inlet to the gas distribution section connected to a supply of combustible gas, a plurality of outlets, and a gas diffuser. The gas distribution section includes at least one tubular member having a substantially flat first side and formed into a closed loop-shape. In one embodiment, the burner outlets are slots arranged along the first side and oriented substantially transverse to the axial direction of the tubular members whereby a locally uniform flame front is provided at each outlet. The gas diffuser is disposed adjacent the burner inlet to facilitate a uniform flame front along the entire gas distribution section by smoothing out fluctuations or variations in the incoming gas flow.Type: GrantFiled: July 25, 2002Date of Patent: January 6, 2004Assignee: Wayne/Scott Fetzer CompanyInventors: Daniel P. Voorhis, Charles E. Wood
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Patent number: 6665950Abstract: Known gas-heated infrared radiators for infrared drying units have a radiator housing (1) that is subdivided by a gas-permeable burner plate (5) in a distribution chamber (6) for the gas-air mixture and a combustion chamber (7), the front side of which emits the radiation. The radiator is held by mixing tube (9) that is affixed to the rear side. A gas-air mixture is supplied to the distribution chamber (6) via said mixing tube (9). The mixing tube (9) has a gas nozzle (11) with a gas inlet (12) and an air inlet (17) on the end opposite the radiator housing (1). The mixing tube is affixed to a holding frame of the drying unit. In order to disassemble the infrared radiator from the infrared drying unit and to mount said radiator on said unit as rapidly as possible, the rear side of the radiator housing (1) is connected to the holding frame by releasable fixing means (20, 33-36) that can be released manually from the front side.Type: GrantFiled: April 24, 2002Date of Patent: December 23, 2003Assignee: Krieger GmbH & Co., KGInventors: Uwe Riepe, Richard Aust, Peter Arlinghaus, Juan Paniagua, Frank Schicht
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Patent number: 6659765Abstract: An infrared rays gas burner comprises a main member having a box which has a base seat and a cover, two non-asbestos pads, ceramic planks and guiding device. The non-asbestos pads is mounted the base seat and the ceramic planks rests on the non-asbestos pad and the cover is secured to the base seat with stop portions thereon against the ceramic plank. A gas mixing tube, which works as a Venturi tube, is mounted on the base seat to inject gas into the base seat. The guiding device is mounted in the base seat, which has guiding portions and outlets thereon for spreading the gas injected from the gas mixing tube in the base seat equally.Type: GrantFiled: December 18, 2002Date of Patent: December 9, 2003Assignee: Seven Universe Industrial Co., Ltd.Inventor: Wu Sen-Yu
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Patent number: 6655954Abstract: All-gas burner, the shape of the peripheral wall of which is not circular in order to increase the heat exchange surface with the item to be heated. The ejection orifices which cross this peripheral wall are created so as to permit a substantially complete combustion of the gas.Type: GrantFiled: October 3, 2001Date of Patent: December 2, 2003Assignee: SourdillionInventor: Bernard Dane
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Patent number: 6648628Abstract: The invention is a device for muffling the sound of escaping gas from a dispensing pipe for natural gas or any similar gaseous fuel, where the dispensing pipe has one or more first orifices. The device is an insert that may be placed into the dispensing pipe. The insert has second orifices through which the natural gas or any similar gaseous fuel escapes, and the second orifices are smaller than the first orifices.Type: GrantFiled: March 5, 2001Date of Patent: November 18, 2003Inventor: Scott F. Eiklor
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Publication number: 20030205223Abstract: The present invention provides a burner tube. The burner tube has a proximal segment, a distal segment, a terminal end, and a plurality of fuel outlet ports. The proximal segment has a union region and is adapted to be connected to a fuel source. The terminal end of the burner tube is connected to the union region such that the terminal end is in fluid communication with the union region. The connection between the terminal end and union region forms a continuous burner tube, or a burner loop for the flow of fuel. An initial flow of fuel diverges in the union region into a first portion and a second portion. The first portion flows through the union region and downstream through the distal segment. The second portion of fuel from the fuel source flows through the union region and downstream through the terminal end.Type: ApplicationFiled: May 6, 2002Publication date: November 6, 2003Inventors: Erich J. Schlosser, Adrian A. Bruno, Mohammed Shoeb
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Patent number: 6638059Abstract: The invention concerns a burner-type apparatus designed to facilitate fuel gas combustion in the atmosphere, comprising a combustion zone (1) supplied with at least a fuel gas through at least a tube (2) for burning gas intake. The invention is characterized in that the tube (2) end is enclosed with a plurality of elements (3) arranged around the latter each consisting of a venturi and motive fluid supply, and designed to increase the quantity of air in the combustion zone.Type: GrantFiled: September 27, 2001Date of Patent: October 28, 2003Assignee: Total Raffinage Distribution S.A.Inventor: GĂ©rard Mougey
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Publication number: 20030190573Abstract: A gas burner for producing an annular array of flames includes a circular gas distribution channel distributing gas from an inlet to a circular array of burning ports. The burner includes a gas injector delivering gas to the gas distribution channel tangentially. This reduces the overall footprint of the burner to facilitate its incorporation in small appliances.Type: ApplicationFiled: April 9, 2002Publication date: October 9, 2003Inventor: Phillip William Keem
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Publication number: 20030188486Abstract: A reformer (5) which generates hydrogen-rich reformate gas by causing a catalytic reaction of fuel and air comprises a premixing chamber (12) for premixing the fuel with the air. High temperature air is supplied to the premixing chamber (12) from an air intake tube (13) via an orifice (14). A fuel injector (16) injects the fuel into the flow of the high temperature air in the premixing chamber (12) to generate fuel-air mixture. A homogenizing filter (17) homogenizes the composition of the fuel-air mixture in the premixing chamber (12) and supplies a uniform fuel-air mixture to a reforming catalyst (11).Type: ApplicationFiled: February 25, 2003Publication date: October 9, 2003Applicant: NISSAN MOTOR CO., LTD.Inventors: Shiro Tanaka, Mikiya Shinohara, Akihiro Sakakida, Tadashi Shoji
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Patent number: 6629837Abstract: A gas-fired burner wherein a back plate having at least one inlet tube is connected with respect to a flameholder plate having a plurality of ports. The flameholder plate and the back plate form a plenum. A plurality of mixing baffles are formed within the plenum and between the back plate and the flameholder plate. A radiation plate is also connected with respect to the flameholder plate, the radiation plate and flameholder plate forming a combustion chamber with at least one gas flow boundary serving as a heat radiating surface.Type: GrantFiled: February 9, 2001Date of Patent: October 7, 2003Inventors: Philip C. Carbone, Karen R. Benedek, Stephan E. Schmidt, Richard A. Shandross, William J. Goetzler, Peter P. Payne
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Publication number: 20030186182Abstract: Gas burner for a cooker, with a burner head provided with a frustoconical peripheral side wall and with a multiplicity of slots forming flame orifices, the burner head being topped by a cap, the side wall (2′) being inclined (&agr;) to the vertical by 10° to 20° and the bottom (8′) of each slot (3) being inclined (&bgr;) to the horizontal by 20° to 30°; the ratio of the diameter (A) of the cap to the diameter (B) of the side wall (2) at mid-height of the outlet orifices (11) of the slots (3) is from 1.4 to 1.6; the stand-off (H) of the cap above the top of the burner head is from 1 to 15 mm; and the angle of inclination (&ggr;) of the lower face (9) of the cap to the horizontal is from 3° to 15°.Type: ApplicationFiled: February 25, 2003Publication date: October 2, 2003Inventors: Bernard Dane, Siu Hun Pierre
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Publication number: 20030186181Abstract: Disclosed is a hybrid high pressure catalytic combustion burner employing catalysts and CST combustion with staged mixing systems, in which a primary combustion gas containing reacted gas of a primary gas mixture, which is formed via catalytic combustion, is subject to a secondary mixing with the primary gas mixture containing fuel and high temperature air, completing stable high temperature CST combustion at ultra lean conditions, thereby achieving high temperature combustion reducing formation of NOx.Type: ApplicationFiled: August 1, 2002Publication date: October 2, 2003Applicant: Korea Institute Of Energy ResearchInventors: Sung-Kyu Kang, Nam-Jo Jeong, Yong-Seok Seo, Sung-Jun Cho, In-Soo Ryou, Hyun-Dong Shin
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Patent number: 6619280Abstract: The burner possesses set of holes capable of directing high pressure combustion flame toward a upper center point concentrating heating power, extremely suitable for heating the bottom of a wok or any round bottom cooking vessel. With an adapter, another set of holes is capable of producing upward and outward spreading flame for flat bottom type cooking vessels. A protection guard can be put around the first wind guard preventing an operator accidentally touching the wind guard during cooking.Type: GrantFiled: May 30, 2002Date of Patent: September 16, 2003Inventors: Dongsheng Zhou, Michael W. Loth
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Publication number: 20030170580Abstract: A sealed gas burner for a cooking range has a venturi tube assembly which is attached directly to a range top of the cooking range. A burner cup slidingly and releasably engages a venturi tube of the venturi tube assembly which extends through the range top. A burner cap releasably engages the burner cup and it defines a plurality of burner ports. The burner cup and the burner cap define an annular gas chamber in communication with the burner ports. The burner ports can be cleaned by removing only the burner cap. Additional cleaning of the burner and the range top can be accomplished by removing both the burner cap and the burner cup.Type: ApplicationFiled: March 11, 2002Publication date: September 11, 2003Inventors: William J. Ferlin, Samuel D. Hawkins
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Patent number: 6615822Abstract: Gas cooking appliance comprising a gas burner equipped with a gas injector 1 fixed to a support 3 and a gas supply tube 2; the support is a sheet metal plate 3 with a through-aperture 4; the injector 1 is fixed to the end of the tube 2; the injector 1 and/or the tube 2 extend through the aperture 4 with the injector 1 and tube 2 one on each side of the plate 3; and a radial annular flange (6) is provided on the tube 2 and situated under the plate 3, being clamped in a sealed fashion against the peripheral edge of the aperture 4 and/or bearing surface 12 of the injector 1 so as to seal between the tube 2 and the injector 1 and between the top and the underside of the plate 3 around the edge of the aperture 4, and to hold the injector 1 secured to the tube 2 centrally in the aperture 4 in a predetermined axial position above the plate 3.Type: GrantFiled: April 17, 2002Date of Patent: September 9, 2003Assignee: SourdilonInventors: André Moreau, Christophe Trochou
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Patent number: 6607376Abstract: A low NOx burner nozzle assembly for a radiant wall burner includes an elongated hollow burner tube and a discharge nozzle. The burner tube defines a conduit for supplying a mixture of fuel and air to a radiant combustion area of a combustion zone that surrounds the nozzle assembly. The discharge nozzle is mounted on the tube at the downstream end of the conduit adjacent the radiant combustion area and the same is adapted for directing the mixture of fuel and air into the radiant combustion area in an essentially radial direction. The discharge nozzle includes a plurality of flow directing members arranged in an array which extends circumferentially around the discharge nozzle, and the same are arranged to define therebetween a plurality of passageways which extend in a generally radial direction. The passageways are arranged so as to have different respective flow areas. The discharge nozzle also has an end cap to prevent axial flow of the primary air/fuel mixture.Type: GrantFiled: March 12, 2001Date of Patent: August 19, 2003Assignee: John Zink Company, LLCInventor: Roger L. Poe
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Patent number: 6607378Abstract: This invention describes an ignition flame for a gas cooking burner that uses an ignition flame system to reignite a gas burner when the burner's flame is extinguished due to drafts or cross winds, when the gas burner is set on very low settings, even in the presence of a side wind.Type: GrantFiled: August 20, 2001Date of Patent: August 19, 2003Inventors: Uwe Harneit, Humberto Delgado
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Publication number: 20030152880Abstract: The present invention relates to a method of operating a burner, which comprises at least one first fuel supply conduit (5) with a first group of fuel outlet openings (6), essentially arranged in the direction of a burner longitudinal axis (3), for a first premix fuel quantity and one or a plurality of second-fuel supply conduits (7) with a second group of fuel outlet openings (8), essentially arranged in the direction of the burner longitudinal axis (3), for a second premix fuel quantity, it being possible to admit fuel to the second fuel supply conduits (7) independently of the first fuel supply conduit (5). In the method, both fuel supply conduits (5, 7) are operated with the same fuel. By means of the present method of operating a burner, optimum mixing conditions can be set even in the case of different loads, gas qualities or gas preheat temperatures.Type: ApplicationFiled: April 11, 2003Publication date: August 14, 2003Inventors: Adnan Eroglu, Jaan Hellat, Peter Stuber
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Publication number: 20030148241Abstract: A combustion apparatus (1) is generally composed of principal part (5), a supplementary part (6) and a burner port assembly (3). Four metal plates (7,8,10,11) constituting the principal and supplementary parts (5,6) are pressed to have in them several protuberances and recesses. These metal plates are laid one on another to form in them some hollow spaces and sealed regions. These hollow spaces communicate with each other to form a thin gas passage (22) together with a thick gas passage (73) in this combustion apparatus (1) in such a manner that its condition of thick and thin fuel combustion is rendered more stable.Type: ApplicationFiled: January 21, 2003Publication date: August 7, 2003Applicant: Noritz CorporationInventors: Masahiko Shimazu, Yasutaka Kuriyama, Takao Morigaki, Takashi Hasegawa, Hidenori Hata, Masaaki Matsuda, Shingo Kimura, Masahiro Iguchi, Takashi Akiyama, Yasuhiko Sato, Koji Shimomura, Toshikazu Miki, Shuji Kameyama, Keiichi Miura
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Publication number: 20030148240Abstract: A burner (2; 2a; 11; 25; 31; 34), comprising a burner body (12; 26; 32; 35), wherein a mixture of fuel and air can be introduced, and a burner head (14; 27; 32; 35a; 41), wherein a plurality of openings (15; 28; 40; 44) is provided, thr ough which said mixture can flow, is associated with shield means (3; 16; 29: 33; 36; 42) shielding said burner head (14; 27; 32; 35a; 41) suitable for limiting the maximum temperature that said burner head (14; 27; 32; 35a; 41) can reach during working of the burner (2; 2a; 11; 25; 31; 34).Type: ApplicationFiled: November 13, 2002Publication date: August 7, 2003Inventors: Feliciano Lasagni, Massimo Gilioli
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Publication number: 20030143507Abstract: A combustion apparatus (1) with a burner port assembly (3) comprises an elongated first array of main burner ports (53) for jetting and burning a fuel gas mixture of a concentration to make main flames. The combustion apparatus (1) comprises at least one second arrays of auxiliary burner ports (63) for jetting and burning a further fuel gas mixture of a different concentration to make auxiliary flames, wherein the second arrays of said auxiliary burner ports (63) extend along the first array of said main burner ports (53). The burner port assembly (3) is constructed using inner and outer wall segments (52) together with outermost wall segments (52a,52f) or bands (58). One of the bands (58) faces the corresponding one of said outermost segments (52a,52f) so as to define between them collateral burner ports (61a,61b).Type: ApplicationFiled: January 21, 2003Publication date: July 31, 2003Applicant: Noritz CorporationInventors: Yasutaka Kuriyama, Takashi Hasegawa, Hidenori Hata, Masaaki Matsuda, Shingo Kimura, Masahiro Iguchi, Takashi Akiyama, Yasuhiko Sato, Koji Shimomura, Shuji Kameyama, Itsuo Nagai, Shigeo Sugie
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Patent number: 6599122Abstract: Gas cooking appliance equipped with a top plate (1) having at least one region (7) for the attachment of an injector (6) of a gas burner (4) and for supporting a head (12) of the burner coaxial with the injector (6); the region (7) has a non-circular contour, particularly a polygonal contour, and the burner head (12) has legs (16) by which it rests on the region (7), the number and arrangement of which legs are such that they collaborate with the sides of the non-circular contour of the region (7) so that the burner head (12) can occupy only a determined and limited number of angular positions while at the same time being arranged coaxial with the injector (6) and so that, for any incorrect positioning—in terms of orientation and/or in terms of centring—of the head (12), the latter rests on the top plate such that it is inclined and that the incorrectness is thus visible.Type: GrantFiled: August 19, 2002Date of Patent: July 29, 2003Assignee: SourdillonInventors: Patrick Hunault, Bernard Dane
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Patent number: 6596424Abstract: Apparatus and method for mixing fuel and an oxidant for use in an autothermal reformer that provides hydrogen to a fuel cell. The apparatus includes a mixing vessel (10), a first inlet (4) to the mixing vessel for movement of gaseous fuel or oxidant therethrough, a second inlet for movement of gaseous fuel or oxidant therethrough, and an exit (60) from the vessel adjacent the autothermal reformer. The discharge ends of the inlets are spaced apart from each other and from the exit which is near a POX reactor (61) that combusts the mixture of fuel and oxidant exiting from the mixing vessel. The first inlet is comprised of a plate (26) with a plurality of tubes (24) extending therefrom through which fuel or oxidant passes.Type: GrantFiled: March 30, 2001Date of Patent: July 22, 2003Assignee: General Motors CorporationInventor: Steven G. Goebel
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Patent number: 6595198Abstract: A collapsible portable stove may include a chassis, side tables, a shelf assembly, leg assemblies, a fuel delivery system, a burner system, a windscreen assembly, and a hoist assembly. The side tables may slide outward to reveal the burner system and provide workspace. The shelf assembly may attach to an underside of the chassis for storage, to a topside of the chassis between the outward-slid side tables for table space, or beneath the chassis between the leg assemblies for shelf space. The leg assemblies may fold for storage and unfold to raise the stove to a low- or high-profile. In a collapsed position, the stove and its self-contained components resemble a rectangular suitcase. The stove may be expanded from the collapsed position to several possible configurations, optionally having high- or low-profiles, exposed and/or covered burners, side tables, a hoist assembly, and a middle shelf or a middle table.Type: GrantFiled: July 10, 2001Date of Patent: July 22, 2003Assignee: The Coleman Company, Inc.Inventors: Robert Mosher, Darrell Neugebauer, David Linnebur, Justin Radford
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Patent number: 6589046Abstract: A multi piece gas burner assembly that is machined or cast and having a burner base that contains holes for primary air where the hole dimensions do not exceed the height of a jet mounted therein. The burner base is fastened onto an appliance. The burner head rests upon a boss on the burner base and has a tube that directs a flammable gas-air mixture from the burner base into a cavity created between the burner head and the burner cap. The burner cap rests upon the burner head and contains an outer edge that is turned downwards in order to allow fluid to drip away from the flame. A groove is cut into the burner cap just inside the down turned outer edge and provides a location for a support flame. The location of the groove prevents fluid and dust from collecting inside the groove. The groove captures the flammable gas-air mixture, which provides a constant ignition source for the gas-air mixture through slots in the burner cap when ignited.Type: GrantFiled: July 2, 2002Date of Patent: July 8, 2003Inventor: Uwe Harneit
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Publication number: 20030113678Abstract: A fire display apparatus comprises a structural base plate supported in a horizontal attitude within a clay, or other fire resistant bowl. The base plate supports an annular burner tube on a outer, upwardly facing surface, the burner tube providing outwardly directed plural burner apertures adapted for directing flames in an outward direction. The base plate also supports a burner fence positioned in spaced-apart relationship with the burner apertures and adapted for directing the flames upwardly away from the outer face of the base plate. Burner gas is conducted to the space between the bowl interior and the underside of the base plate. Here, gas valves and a flame sensor provide automated flame monitoring and control. A system control unit is heat insulated using standoffs, an insulating mat and a heat cage.Type: ApplicationFiled: December 16, 2002Publication date: June 19, 2003Inventor: Kevin Eugene Doud
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Patent number: 6579085Abstract: This invention relates to a burner and a method of combustion for producing a flame jet sheet or sheets for various applications in industrial furnaces. The burner has at least one linear or curvilinear flame nozzle having a ratio of width to height of greater than unity in order to produce high velocity and high temperature flame jet sheet or sheets with a well defined geometry. The burner is capable of being scaled to various sizes for various industrial furnace applications due to its geometry.Type: GrantFiled: August 24, 2000Date of Patent: June 17, 2003Assignee: The BOC Group, Inc.Inventors: Donald Prentice Satchell, Jr., Christian Juan Feldermann
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Publication number: 20030101980Abstract: The present invention relates to a gas burner particularly suited for gas heating applicances for cooking food. In particular the present invention comprises a generally circular moulded body (100) including gases inlet (106) and an internal cavity (114). The internal cavity (114) is covered by a substantially transparent glass cap (108), which also bounds on the gas outlets (116). In this fashion, due to the transparency of the glass cap (108) at low flame improve controllability and safety are achieved by visual feedback of the flame size.Type: ApplicationFiled: August 19, 2002Publication date: June 5, 2003Inventor: Simon Denzil Brown
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Patent number: 6561795Abstract: A burner fed with a hyper-stoichiometric mixture of air and gas-fuel comprises a diffuser on which rows of similarly shaped and evenly spaced parallel slots for the flow of said mixture are provided; said rows are separated from each other by an intermediate portion of diffuser having a substantially constant width and provided with further slots for the flow of said mixture, said further slots being non-parallel to said slots.Type: GrantFiled: January 6, 2000Date of Patent: May 13, 2003Assignee: Worgas Bruciatori S.r.l.Inventors: Feliciano Lasagni, Giorgio Buccilli
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Publication number: 20030087214Abstract: A multiple fingered burner includes controls for continuity of gas flow and ignition throughout all of the ports peripherally positioned around the contoured wall of the burner body. A plurality of burner parts are nested together with an indexer limiting insertion to at least one predetermined alignment in order to avoid improper fit or alignment between adjacent burner parts. In addition, the peripherally positioned ports are covered by a laterally extending lip of a cap, and at least one of the parts includes recesses adjacent the laterally extending lip to provide ignitable gas flow passages along the peripheral wall of the burner that maintain continuity of ignition at adjacent burner ports.Type: ApplicationFiled: November 8, 2001Publication date: May 8, 2003Applicant: BSH HOME APPLIANCES CORPORATIONInventors: Jeffrey A. Welton, Ralph E. Jennings, Hans Daerendinger
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Patent number: 6558154Abstract: A burner system with staged fuel injection includes a burner with a swirl generator (1) for a combustion air stream and device(s) for introducing fuel into the combustion air stream, wherein the fuel introducing devices include at least two separate fuel supply elements (4a, 4b) with groups of fuel outlet openings for corresponding premix fuel amounts, wherein a first group is arranged downstream from a second group. The burner system furthermore includes measurement value probes (8, 9) for measuring the pulsations and emissions of the combustion, as well as a control device (10) that controls the two stages (4a, 4b) for introducing fuel dependent on the measured measuring values. The burner system permits optimized operation of the system even under changing operating and environmental conditions.Type: GrantFiled: November 13, 2001Date of Patent: May 6, 2003Assignee: Alstom (Switzerland) LtdInventors: Adnan Eroglu, Peter Stuber, Christian Oliver Paschereit, Hans Peter Knoepfel
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Patent number: 6558156Abstract: A multi-flame lighter includes a housing, an igniter, a liquid fuel supply, a valve, a vaporizer, a mixing chamber, a nozzle, and a flame chamber. The multi-flame lighter produces clearly visible and forceful flames that are aesthetically pleasing and functional being equivalent to 2 or more of the flames from a conventional tighter as well as being particularly wind resistant. The multiple clearly visible and forceful flames allow a user to easily aim the cigarette or cigar to quickly achieve ignition and easily ignite the cigarette or cigar for ignition and easily ignite the cigarette of cigar with the multiple clearly visible flames.Type: GrantFiled: July 25, 2001Date of Patent: May 6, 2003Inventor: Chi Lam Wong
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Publication number: 20030077551Abstract: An inshot gas burner having an overall length of less than four inches that is capable of delivering between 5,000 and 5,800 Btus per unit length of burner per hour. The burner venturi section with a flame retainer positioned at its outlet that produces a firing rate of at least 9,900 Btus per inch of diffuser length.Type: ApplicationFiled: October 19, 2001Publication date: April 24, 2003Inventors: Ninev Karl Zia, Chi Ming Ho, Brian A. Reeves