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US 4,232,650 AGranted
Baffled stove
AssigneeBaffle Stove Company Inc.
InventorBruce A. Frank
Life of this patent
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AssigneeBaffle Stove Company Inc.
InventorBruce A. Frank
Estimating the term…
A Baffled Stove is described having a generally rectangular heating structure with its lower or bottom portion adapted to form a firebox for receiving fuel such as wood or coal. A primary air passageway is provided for introducing air into the heating structure at or near the level of the firebox. Controls are also provided to adjust the quantity of primary air introduced into the heating structure. A hinged door is mounted in the front door of the rectangular heating structure for introducing fuel into the firebox. A secondary air inlet is in communication with a conduit positioned in a plane horizontal to the firebox to provide a baffle for directing the flow of the products of combustion and also for preheating the secondary air as it passes therethrough. The preheated air exits at a point opposite to the secondary air inlet. The gases of combustion and smoke circulate circuitously through the fire chamber and comingles with the preheated secondary air as it exits from the horizontal conduit to produce additional or secondary burning. The unused air and final products of combustion are carried to the atmosphere through a flue outlet located at or near the top of the heating structure on a side opposite to the secondary air outlet.
A generally rectangular heating structure having two sides walls, a front wall, a back wall a top wall and a bottom wall wherein said bottom wall is adapted to form a firebox for receiving fuel, a primary air passageway for introducing air into said heating structure at a level near said firebox, a secondary air inlet vertical passageway wherein said passageway includes a vertical wall spaced from said back wall and fixed to said bottom wall and to said side walls and a horizontal passageway includes a pair of spaced apart horizontally positioned baffle plates sealed at their side ends to said side walls, and a flue outlet for carrying gases of combustion to the atmosphere, said vertical and horizontal passageways forming a continuous conduit whereby secondary air enters near the bottom of the vertical passageway for preheating and exits through an outlet in said horizontal passageway where said secondary air is combined with gases of combustion for secondary burning and circuitously flows outwardly through said flue outlet.
A method of burning fuel in a rectangular heating structure having a firebox area comprising introducing primary combustion air into said firebox, introducing a secondary preheated combustion air into said firebox, at a temperature in excess of 900.degree. F. at a point where smoke and combustion gases generated during the primary combustion sequence passes prior to leaving said heating structure through a flue outlet.
Dependencies are inferred from the claim text.