Abstract: A catalytic combustor includes a plurality of channels formed by corrugated and flat strips, some of the channels being coated with a catalyst and others being uncoated. In the vicinity of the inlet end of the combustor, the boundary of each coated channel has a thermal barrier, to inhibit the flow of heat from the coated channel to an adjacent uncoated channel. Also in the vicinity of the inlet end, the coated channels may include one or more additional coated members, to enhance catalytic combustion in the light-off zone. The combustor of the present invention lights off at a relatively low temperature, and quickly reaches a stabilized and controlled operating temperature.

Abstract: A wood burning furnace having an enclosed combustion chamber including a top, a bottom, a back, a front and opposing side walls and a secondary combustion air admission chamber including a top, a bottom, a back, a front and opposing side walls, the bottom wall of the secondary combustion air admission chamber being arched and perforated, the bottom wall of the secondary combustion air admission chamber forming at least a portion the top wall of the combustion chamber

Abstract: A safety mechanism in a utility lighter which includes a lever spring and cam mechanism having a fuel release lever and the safety button. When the cam mechanism is in the locked position, the lever spring blocks the stopper tab preventing depression of the trigger, and the fuel release lever closes the fuel release valve. As the safety button is depressed, the lever spring is moved out of alignment with the stopper tab to permit depression of the trigger, the hub rotates, and the fuel release lever is actuated to open the fuel-release valve. As the safety button is released, the lever spring urges the cam mechanism into the locked position.

Abstract: There is now provided a kitchen gas cooking stove with a glass-ceramic, glass, or ceramic top, a gas cooktop with a glass-ceramic, glass, or ceramic top, and a glass-ceramic, glass, or ceramic top of a cooking stove or cooktop with a venting structure thereon. A component-part is mounted on the top in a cutout portion with an attachment that prevents contact between the component-part and the top and seals the cutout portion from cooking spills to prevent spills on the top from seeping along said attached silicone body toward the cutout portion.

Abstract: The present invention provides a barbecue grill assembly comprising an upper assembly and a lower assembly, the upper assembly adapted to receive a cooking chamber. The grill assembly further comprises at least one projection on one of either the lower assembly or the upper assembly, and at least one receiver on the other of said lower assembly or said upper assembly. The projection and the receiver are cooperatively dimensioned such that the projection is received by the receiver. The projection having a first portion and a second portion wherein the first portion is adapted to be biased into contact with an inner surface of the receiver. The barbecue grill assembly includes a lateral assembly, positioned proximate the upper assembly. The lateral assembly is adapted to receive an auxiliary work surface or a cooking burner. The upper, lower, and lateral assemblies are each formed from a plurality of tubular frame members.

Abstract: An attachment for gas grills with automatic ignition gas burner includes a two-way, plunger actuated valve remotely mounted from the cooking area immediately around the burner. The valve plunger is actuated by an arm or actuator rod B having a pivotal mounting C shielded from the cooking area. Attached to the arm is a ring or actuator member E that provides a large contact area allowing actuation by the periphery of a cooking utensil. Placing the utensil over the burner depresses the ring against the force of the torsion spring D actuating the valve, allowing gas to flow to the burner where it is automatically ignited for cooking. Removal of the utensil closes the valve, shutting off the flow of gas, thus extinguishing the flame at the burner.

Abstract: The method of the invention concerns operation of a furnace utilizing a hydrogen-rich gas as furnace fuel. The furnace has multiplicity of burners for burning fuel supplied thereto. The method comprises providing ignition means for lighting a flame at at least one burner of the multiplicity of burners. An oxygen-containing gas and a combustible gas comprising a hydrocarbon gas are supplied to each of the multiplicity of burners in amounts capable of forming an ignitable mixture. A flame is ignited at the predetermined one burner which is then allowed to propagate from the at least one predetermined burner to the other burners of the multiplicity of burners. Then the composition of the combustible gas is altered over a period of time so as to replace at least a major part of the hydrocarbon gas by a hydrogen-rich gas until a hydrogen flame is established at each of the multiplicity of burners.

Abstract: A baking oven for producing baked molded bodies has a baking line that extends along a plane from an input station to an output station. The baking molds are each formed of a bottom baking plate and a top baking plate that is set down onto the top surface of the lower baking plate. The baking molds are transported through the baking line by a lower conveyor that carries the lower mold halves. An upper conveyor above the baking line transports the upper mold halves through their path of revolution above the plane of the baking line with the plates suspended and substantially horizontally aligned and with the baking surfaces always facing down. At the beginning of the baking line, the upper conveyor sets the top baking plates, which are substantially horizontally aligned, down onto the bottom baking plates for forming the baking molds, and at the end of the baking line, it lifts them from the bottom baking plates for opening the baking molds.

Abstract: An electronic gas-lighting device includes a casing made of insulating material; electronic high-voltage-pulse generating circuit including at least one transformer having a secondary winding, the ends of which are connected to respective high-voltage terminals; and fitting elements for removably fitting the insulating casing to a supporting surface of a conducting metal body element of an electric household appliance, e.g., a cooking range with gas burners. The casing includes a cup-shaped body housing the transformer, and a box portion which is formed integrally with the cup-shaped body, houses at least part of the electronic high-voltage-pulse generating circuit, and is fitted directly with respective supply contacts located on the box portion to form a supply terminal board. The supply contacts are connected exclusively to the electronic high-voltage-pulse generating circuit, and are connectable to the wires of a supply cable.

Abstract: A burner assembly for a radiant burner includes a burner tube structure in the form of an elongated burner conduit having spaced inlet and outlet ends. The conduit is adapted and arranged for directing a fuel lean gaseous mixture comprising a portion of the total fluid fuel to be combusted and oxygen therealong from the inlet end to the outlet end. The assembly also includes a main burner nozzle at the outlet end of the conduit, which nozzle has a central axis, a wall extending around a centrally located chamber therein, and a downstream end spaced from the outlet end of the conduit. The main burner nozzle is arranged and adapted for receiving the mixture from the conduit in the chamber and redirecting the same through a plurality of apertures in the wall and into a combustion zone in a direction transverse to the axis and at a velocity which is greater than the flame speed of the gaseous mixture.

Abstract: A combustor for waste gas treatment having a flame stabilizing zone surrounded by a peripheral wall and closed with a bottom wall. The flame stabilizing zone is provided to face a combustion chamber. Burner ports for auxiliary combustible gas are provided in the peripheral wall to inject an auxiliary combustible gas into the flame stabilizing zone so as to produce swirling flows. Burner ports for waste gas are provided in the bottom wall to inject a gas into the flame stabilizing zone.

Abstract: Combination cooking grills and thermal chests are provided. One such combination includes a thermal chest that defines an interior and which includes an opening communicating with and providing access to the interior. The combination also includes a grill that defines a cooking interior and which incorporates a grilling surface mounted within the cooking interior. A repositioning assembly is mounted to the thermal chest. The grill is movable, via the repositioning assembly, between a lowered position in which the grill limits access to the interior of the thermal chest via the opening, and a raised position in which the grill is spaced from the thermal chest such that access to the interior of the thermal chest is provided via the opening.

Abstract: A barbecue grill is disclosed that includes a main grill body including a cooking chamber, the frame, and an improved shelf. The improved shelf includes a substantially planar portion and either a pair of tool hangers configured to receive barbecue instruments and tools and/or a hand pull. The tool hangers are attached to the substantially planar portion and project therefrom in a manner wherein the tool hangers oppose each other. The hand pull is configured to be accessed by a user from under the shelf, and maybe further configured to fit user's cupped and upwardly-turned hand. Additionally, the hand pull is preferably configured to be ergonomically shaped for a user's hand.

Abstract: A burner for non-symmetrical combustion generally includes a burner housing enclosing a burner plenum. A fuel conduit extends within the housing and is positioned coaxial with a line spaced from a central axis of the burner. The fuel conduit defines a fuel exit opening. A baffle defining an air conduit extends longitudinally within the housing. The air conduit has an air opening on an opposite side of the burner central axis from the fuel exit opening. At least one oxygen injection lance extends longitudinally within the housing and partially through the air conduit. A burner port block is located adjacent to the baffle and downstream of the air opening, and is in fluid communication with the fuel conduit and the air conduit.

Abstract: A microcombustor comprises a microhotplate and a catalyst for sustained combustion on the microscale. The microhotplate has very low heat capacity and thermal conductivity that mitigate large heat losses arising from large surface-to-volume ratios typical of the microdomain. The heated catalyst enables flame ignition and stabilization, permits combustion with lean fuel/air mixtures, extends a hydrocarbon's limits of flammability, and lowers the combustion temperature. The reduced operating temperatures enable a longer microcombustor lifetime and the reduced fuel consumption enables smaller fuel supplies, both of which are especially important for portable microsystems applications. The microcombustor can be used for on-chip thermal management and for sensor applications, such as heating of a micro gas chromatography column and for use as a micro flame ionization detector.

Abstract: A burner apparatus comprises a conduit adapted to convey preheated oxidant and having outlet and inlet ends, and a conduit adapted to convey preheated fuel and having outlet and inlet ends. The conduit adapted to convey preheated fuel is substantially parallel to the conduit adapted to convey preheated oxidant. The conduit adapted to convey preheated oxidant is positioned substantially vertically above the conduit adapted to convey preheated fuel. The conduit adapted to convey preheated oxidant and the conduit adapted to convey preheated fuel each are positioned within its own respective elongate cavity in a refractory burner block. Each of the conduits are positioned in their respective cavity such that a substantially annular region is present between an outer surface of each conduit and its respective cavity. Each conduit inlet end extends through a respective plenum for receiving an ambient temperature fluid, the plenums adapted to pass the ambient temperature fluid into the respective annular regions.

Abstract: A kitchen oven has an infrared gas broiler with a venturi tube assembly extending forwardly from a back wall of the oven for supplying fuel gas and drawing ambient air for combustion through a venturi tube opening at the oven back wall. Ducting is mounted on the oven back wall and extends over the venturi tube opening. A fan is mounted on the oven in communication with the ducting for supplying a positive air flow through the ducting to said venturi tube opening.

Abstract: In a burner (10) for the production of a hot gas, which burner (10) opens with a burner outlet (22) edged with an outlet edge (16, 17) into a combustion chamber (23), in which a fuel-air mixture flowing out from the burner outlet (22) with the formation of an outflow boundary layer (18′) forms a flame (20) after the ignition of the burner (10), the combustion process is improved in that, to prevent periodic releases of heat and the therewith connected thermoacoustic oscillations in the combustion chamber (23), means (21) are arranged at the burner outlet (22) for changing the thickness of the outflow boundary layer (18′).

Abstract: 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.

Abstract: A fire effect appliance which utilizes a bowl to which is to be supplied a flammable gas. The internal chamber of the fire bowl includes a diffusing device which is to function to evenly distribute the gas throughout a particulate matter contained within the internal chamber of the fire bowl. The fire bowl can be placed on a freestanding stand or mounted within a table. A fan and shroud can be mounted in conjunction with the fire bowl for the purpose of propelling the heated air exteriorly of the fire bowl so the appliance can also function as a heater.