Abstract: There is provided a range for sealed combustion of a gaseous fuel comprising a hob assembly and an oven. The hob assembly comprises a glass ceramic cooking surface sealed to a support box and one or more burners. The hob assembly and oven are connected to a fresh air intake/exhaust manifold, such that there is no air exchange between the range and the room in which it is located.
October 23, 1992
Date of Patent:
April 18, 1995
Canadian Gas Research Institute
Anthony L. P. Joseph, John C. K. Overall, Christopher Runcieman, Colin Wright
Abstract: A barbeque has a base and a hollow column extending upwardly from the base to an upper housing, which may comprise a housing body an a lid. A firebox is provided within the housing for charcoal or other fuel and is perforated to permit combustion air to pass therethrough. A fan is provided at a lower end of the column, for drawing air up through the column and forcing it through into the upper body and hence through the firebox, for promoting combustion of the fuel.
Abstract: A stove for burning solid fuel, such as coke or coal, comprises a feed hopper for storing a stock of fuel and a supporting member for supporting fuel present in a fireplace. The feed hopper is in communication near its lower side with the space incorporating the fireplace via a downwardly sloping fuel supply channel. The boundary walls of the channel are arranged one above the other. A passage is provided for the supply of primary combustion air near the lower side of the combustion chamber. An inlet passage for the supply of secondary combustion air is provided above the combustion chamber. The primary combustion air is sucked-in with the aid of a fan disposed upstream of the combustion chamber. The passage for supplying the primary combustion air is automatically closed by a valve when the fan is made inoperative.
Abstract: An automatic food cooker having a tubular frame used as an air conduit system for delivering air to the fuel source. When the attached fan is turned on air is blown through the tubular frame and out the exhaust on the vertical frame members. The exhaust ports are adjacent the lower longitudinal frame near the fuel source. Therefore, regardless of the wind condition the fuel source may be fed sufficient air to promote burning. Use of the tubular frame as air conduits minimizes the cost involved in providing the air delivery system for the cooker. A portion of the frame is used as hot air conduits for drawing heated air from the cooker interior and delivering it to an upper chamber for heating or cooking food products contained therein.
Abstract: A barbecue cooking device includes a housing having a casing defining a combustion chamber supported centrally therein spaced from the walls of the housing. A heat shield surrounds the combustion casing and is spaced therefrom. A diffuser plate is mounted in the combustion chamber and includes openings in at least a portion thereof for the passage of air under pressure for creating a primary combustion zone. Air is forced against the bottom of the diffuser plate under pressure by an electrically driven fan. The combustion casing has a top open end spaced from the open top end of the housing where a cooking grill is supported. Air also is caused to flow between the combustion casing and the heat shield to supply air to the area at the top of the combustion casing for mixing with heated fuel gas from the primary combustion zone, whereby a secondary combustion zone is created above the combustion chamber and beneath the cooking grill.
Abstract: A forced draft, solid fuel burning stove incorporates a plurality of air distribution conduits disposed intermediate an ash collection receptacle and a solid fuel support grate. The forced draft air is directed upwardly onto a deflector in a manner to permit the flow of air to be evenly distributed across the solid fuel and across the food support surface. The movement of the forced draft air against the deflector establishes a turbulent, randon movement which prevents high concentrations of forced air directly upon the solid fuel, which would otherwise loosen ash particles from the solid fuel and carry them upwardly onto the food support surface.
Abstract: A wood burning stove having a primary combustion chamber and a secondary chamber having a catalytic converter therein is disclosed. Primary air is introduced to said primary chamber and secondary air is introduced to said secondary chamber utilizing completely separate and independent control means, with the draft means for said primary and secondary air both being located below the fuel (wood) support level. Means are provided for preheating both the secondary air and the catalytic converter.
March 9, 1981
Date of Patent:
March 16, 1982
Larry A. Schwartz, Robert Geiter, Peter S. Albertsen
Abstract: A heating apparatus is disclosed wherein a combustion chamber which contains the fuel to be burned is located adjacent to an air heating chamber. Conduit means communicate from the air heating chamber to the combustion chamber for the purpose of leading air, which has been heated within the air heating chamber, into the combustion chamber. Blower means draw ambient air from the space surrounding the heater into the air heating chamber where it is blown through the conduit means into the combustion chamber to promote efficient combustion of the fuel.
Abstract: A refractory lined firebox is encased in a low profile furnace shell of generally rectangular configuration. Mounted on top of the firebox within the furnace shell is a heat exchanger which provides alternating passageways at right angles to one another through which flue gas and air to be heated flow in heat exchange relationship. The heat exchanger and firebox are so related that the axes of the passageways are inclined from the horizontal and the flow through them is generally upward as well as lateral. The furnace includes special combustion air ducts for use in combustion of the solid fuel. The furnace is also equipped with a back-up liquid fuel burner and a control system which activates and operates the liquid fuel burner in response to total consumption or burn out of the solid fuel in the firebox.
Abstract: A wood-burning furnace including a combustion chamber having a novel combustion air distribution system including jets whereby air is delivered only to a limited portion of the area of the fire bed, and whereby clogging of the jets by the large quantities of wood ash is prevented, the combustion air being delivered by a thermostatically controlled blower and damper system such that the heat delivered by the furnace may be controlled and regulated with substantially the same degree of accuracy as that obtainable with gaseous and liquid fuels.
Abstract: Therapeutic device for locally topical treatment of the body comprising a skin-applicable open-mouthed combustion chamber, a grating support for herbs or other combustible material and means such as a pressurized air supply and/or a restricted combustion gas outlet to pressurize gases held at the skin by the combustion chamber mouth.