US 4,387,699 AGranted

Space heating stove

OwnerCharles J. Murch, Jr.inventor

Life of this patent

Estimating the term…

Abstract

An efficient space heating stove having a combustion chamber substantially completely enclosed with insulating firebrick whereby the operating temperatures within the combustion chamber can be maintained above the ignition temperature of the fuel being consumed. Combustible gases liberated by the wood fuel are burned as they pass through a perforated, hollow, tubular member located within the combustion chamber and through which the combustible gases must pass before they are exhausted from the stove. Fuel within the combustion chamber is efficiently burned before useful heat energy is extracted.

Claims12

Dependent claims

A space heating stove, comprising:

a combustion chamber defined by a floor, a pair of opposed end walls projecting upwardly from said floor, and a pair of opposed side walls projecting upwardly from said floor and in cooperation with said end walls to enclose said chamber;
said floor, said end walls and said side walls formed by heat resistant and heat insulating ceramic material;
means in operative relationship with said floor and said walls for supporting said floor and said walls;
each of said end walls defining a first opening therein, and a perforated, heat and oxidation resistant, cylindrical member extending through said combustion chamber and positioned within said openings;
a front plate member projecting upwardly from said support means and in spaced apart relationship with respect to a front one of said end walls;
a rear plate member projecting upwardly from said support means and in spaced apart relationship with respect to a rear one of said end walls;
a front baffle member located adjacent to said front end wall between said front end wall and said front plate member and projecting beyond an upper edge of said front end wall along said upper edge to a predetermined location above said support means;
a rear baffle member located adjacent to said rear end wall between said rear end wall and said rear plate member and projecting beyond an upper edge of said rear end wall along said upper edge to a predetermined location above said support means;
first and second plate members positioned in contacting relationship with said front and rear plate members and with said front and rear baffle members and in spaced apart relationship from said side walls;
an exhaust port attached to said first and second plate members and in fluid communication with said combustion chamber;
a shroud attached to and in spaced apart relationship from said first, second and rear plate members;
said front end wall further defining a second opening for enabling loading of fuel into said combustion chamber, wherein said front plate member also defines an additional opening in substantial alignment with said second opening, and further including panel members connecting said second opening and said additional opening to form a passage for receiving fuel into said combustion chamber;
and
a door hinged to said front plate member for closing said second opening and said passage.

11 more elements

Dependencies are inferred from the claim text.

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Abstract

A space heating stove, comprising:

a combustion chamber defined by a floor, a pair of opposed end walls projecting upwardly from said floor, and a pair of opposed side walls projecting upwardly from said floor and in cooperation with said end walls to enclose said chamber;
said floor, said end walls and said side walls formed by heat resistant and heat insulating ceramic material;
means in operative relationship with said floor and said walls for supporting said floor and said walls;
each of said end walls defining a first opening therein, and a perforated, heat and oxidation resistant, cylindrical member extending through said combustion chamber and positioned within said openings;
a front plate member projecting upwardly from said support means and in spaced apart relationship with respect to a front one of said end walls;
a rear plate member projecting upwardly from said support means and in spaced apart relationship with respect to a rear one of said end walls;
a front baffle member located adjacent to said front end wall between said front end wall and said front plate member and projecting beyond an upper edge of said front end wall along said upper edge to a predetermined location above said support means;
a rear baffle member located adjacent to said rear end wall between said rear end wall and said rear plate member and projecting beyond an upper edge of said rear end wall along said upper edge to a predetermined location above said support means;
first and second plate members positioned in contacting relationship with said front and rear plate members and with said front and rear baffle members and in spaced apart relationship from said side walls;
an exhaust port attached to said first and second plate members and in fluid communication with said combustion chamber;
a shroud attached to and in spaced apart relationship from said first, second and rear plate members;
said front end wall further defining a second opening for enabling loading of fuel into said combustion chamber, wherein said front plate member also defines an additional opening in substantial alignment with said second opening, and further including panel members connecting said second opening and said additional opening to form a passage for receiving fuel into said combustion chamber;
and
a door hinged to said front plate member for closing said second opening and said passage.

11 more elements