Matches 1 - 50 out of 73 1 2 >


Match Document Document Title
8161959 Wood burning furnace  
A wood burning furnace providing, in sequential connection, an air box, a fire box with a wood storage box/primary combustion chamber and a secondary combustion chamber separated by an ash grate, a...
7861707 Gravity feed natural draft pellet stove  
A pellet stove utilizing gravity feed and natural draft more effectively and efficiently burns pellet fuel while producing less air pollution and ash. In one embodiment, the pellet stove has a...
7451759 Wireless fireplace damper control device  
A wireless damper control device comprises a damper positioned in a flue, movable between a closed position where the flue is blocked and an open position, a damper controller which sends a damper...
6328029 Portable, ventless cast iron stoves  
A heating stove for burning a gelled alcohol fuel is provided which is constructed of cast iron, yet nevertheless, is compact and light enough for one person to move. The stove is constructed of a...
6029650 Personal heating device  
A personal heating device includes a chamber having a closed end and an opposing open end. One or more air intake holes are formed in the chamber proximal the closed end to allow air into the...
6009867 Apparatus and method for accelerating charcoal ignition  
A charcoal igniter which has a thermal barrier attached to the top of the charcoal ignition chamber. The thermal barrier restricts airflow though the charcoal chamber and retains heat within the...
5553604 Space heating system, heater, and combustion chamber  
The space heating system has a stove (1, 2) with a sealed combustion chamber (3); air is heated in the stove in a heat exchanger (12) therein, and heated air is conducted through hollow blocks (80)...
5522327 Balanced pressure solid fuel heating unit  
A method and apparatus for a pellet fuel burning heating unit for burning corn or wood pellets having a balanced pressure system having a four-way split combustion intake airstream. The invention...
5341794 Combustion device for stoves and fireplaces  
A combustion device is described by several embodiments to enable efficient, clean burning of fuel in combustors. In stove and fireplace embodiments, primary, secondary and tertiary air supplies...
5323760 Vacuum wood stove apparatus and method  
The present invention relates to a vacuum apparatus in combination with a stove for burning combustible materials, such as cordwood or wood pellets, comprising a combustion chamber in which the...
5285738 Pellet burning heating device  
A pellet burning heating device (20) designed to operate at a combustion efficiency of about 90-98% (based on the oxygen-derived combustion efficiency formula), and to emit exhaust gases having a...
5261335 Firebox furnace with automatic feeding system  
An automatic firebox provided with a fuel hopper that delivers fuel through a pivoting funnel to a grate burning area. The grate burning area is provided with at least one pivoting fuel grate which...
5203316 Portable camp stove  
A portable camp stove is disclosed. It consists of a frusto-conical main body, a preheating chamber, and spiral flue chambers. The stove may be placed over a fire in a pit in the earth, or the...
5165384 Barbeque grill housing apparatus  
A housing apparatus is arranged for use in combination with a barbeque grill for mounting to a balcony structure of an existing dwelling. The structure includes mesh side walls and a floor to...
5144939 Biomass pellet-burning orchard heaters  
An orchard heater burns wood or other biomass pellets substantially without the production of soot or smudge. The heater assembly includes demountable, telescoping components including a combustion...
5050579 Combustor assembly for a fuel-burning room heater  
A pollutant-controlling combustor assembly for use with a fuel-burning room heater includes at least two combustors through which gaseous combustion products are routed before being discharged into...
5001993 Stove for burning bio-mass pellets and grain  
A free-standing, thermostatically controlled stove provides positive draft combustion of bio-mass pellets or cereal grains. Particulate bio-fuel is gravity fed from a hopper into a first slower...
4919122 Element structure and process for assembling same  
Element structures are assembled from separately formed modular elements. Incorporated in the modular elements are stressing members, for example, connecting rods or the like, which can be aligned...
4896654 Pollution neutralizing woodburning stove  
This invention concerns a solid fuel stove, in particular a wood stove fitted with a device capable of neutralizing the polluting elements of burnt gasses and that comprises, in a conventional...
4875462 Campfire smokestack  
A smokestack including an elongated tube means having an open bottom end for receiving smoke emanating from a campfire and an open top end for releasing the smoke into the atmosphere, and a base...
4850332 Masonry fireplace, particularly a baking oven  
The invention relates to a masonry fireplace, particularly a baking oven, comprising: a furnace (4) in which the fuel is burnt and the bottom of which is formed by a baking grate (5), the furnace...
4844051 Fuel burning appliance incorporating catalytic combustor  
A wood burning air augmented stove for reclaiming heat from the discharge gases employing a plurality of spaced catalytic combustors, one combustor being detachably mounted on the edge of a smoke...
4817584 Wood burning stove with concealable doors  
A freestanding wood, gas log or coal burning stove includes a pair of hinged glass or screen doors which are movable to storage compartments within the stove where they are completely concealed...
4779607 Stove  
A stove for burning fuel in which secondary air is introduced and mixed with the products of combustion in a firebox with primary air, the secondary air being kept from the firebox by a...
4770158 Combustion with leakage resistant exhaust valve  
A combustor including a combustion chamber having two paths for removing combustion exhaust gases, a valve in one path, and means to provide, when the valve is in a closed position, pressure at a...
4714073 Heating apparatus operating with gaseous fuel and designed to be connected to a smoke pipe  
A discharge pipe is directly associated with one of the main heat exchange walls of a monoblock heating body, and a backflow damping device comprises two siphons placed symmetrically on either side...
4662351 Stove for combusting both liquid and solid fuels  
A stove for combusting both liquid and solid fuels, said stove comprising: a burner area in which the burner for liquid fuel is located, a collecting area for combustion gas above said burner area...
4628898 Secondary combustion system for wood burning stove  
A secondary combustion system for a wood burning stove employs an insulated passageway which is configured to substantially increase the turbulence of an exhaust stream passing therethrough. The...
4580546 Catalytic stove  
A catalytic stove comprised of a housing having a fuel burning chamber and an effluent chamber separated by a domed common wall. An air inlet port is located in the fuel burning chamber and draft...
4553527 Catalytic unit for burners  
Apparatus supporting a catalytic converter for a burner comprising a support including an opening for passage of exhaust gases therethrough, a catalytic converter mounted on the support for...
4553526 Secondary combustion system for woodburning stove  
A secondary combustion system for a woodburning stove employs a concave shaped screen for dispersing exhaust gases. A mixing chamber is formed in an insulated conduit between the concave screen and...
4532913 Combustion means for solid fuel of low ash content  
A combustion device for solid fuel of low ash content, which has a holding board for holding the solid fuel of low ash content which has no grooves or slits, a cylindrical body forming a combustion...
4515144 Hand-fired, solid fuel stove  
An inclined and perforated grate 20 is arranged in a hand-fired, solid fuel stove 10 having a fuel door 11, an ash pit 18 under grate 20, and a combustion air inlet opening 24 to a region under...
4510918 Woodburning heating apparatus  
Woodburning heating apparatus including a catalytic igniter for increasing heating efficiency and reducing polluting emissions. The apparatus includes a secondary combustion chamber in gaseous...
4487193 Thermally operated propeller assembly  
A temperature indicating propeller assembly comprises first and second propellers freely suspended one above the other on a common suspension wire for rotation by rising air currents. One propeller...
4481933 Fire extinguishing attachment for chimney stacks  
A fire extinguishing attachment including a bracket for mounting on a stove stack and having a tubular guide therethrough. The tubular guide is an elbow tube having an inner end within the stack...
4473059 Wood burning stove  
Wood burning stoves are of a type having a lower chamber and an upper chamber interconnected by a port. Air inlets are located laterally of the base of a fire in the lower chamber with a natural...
4466420 Modular masonry heating system  
Disclosed is a modular masonry heating system having a modular firebox assembly positioned within the flue chamber of an outer modular heat shell asembly. The heat shell comprises an enclosing wall...
4440144 Heater apparatus and method  
Heater apparatus is disclosed having a metal firebox in which fuel is burned and an outer ceramic enclosure having ceramic mass walls which absorb excess heat when the heater produces more heat...
4415537 Catalytic combustor  
A catalytic combustor particularly adapted for use in wood and coal burning stoves is described comprising a high temperature stable support material containing a high activity, sulfur tolerant...
4400356 Combustion catalyst bed  
A catalytic combustor bed configuration particularly adapted for use in wood and coal burning stoves is described comprising a support screen having a layer of fully catalyst impregnated...
4386599 Fireplace stove  
A woodburning stove adapted to be inserted into a fireplace having inner walls operatively forming a fire chamber and outer walls spaced from the inner walls to form air heating chambers through...
4385621 Oil stove for burning waste oil and normal heating oil  
An oil stove for burning both waste oil and heating oil has a primary combustion chamber for the initial combustion of fuel and an adjoining secondary combustion chamber of larger diameter in which...
4370973 Space heating stove with stress relieving walls  
A space heating stove of the solid fuel burning type has a combustion chamber formed of wall means including a wall or walls each formed of sheet metal and being of an irregular nonplanar...
4368722 Device and method for converting wood into thermal energy  
A device and method for burning wood for the purpose of heat generation is disclosed. The device has a flat grate on which the fuel is placed and a vertical combustion air inlet passage which...
4350139 Solid fuel heater with improved primary/secondary air control system  
A solid fuel heater comprises a plurality of horizontal tubes defining between a vertical partition and an opposed vertical wall of the heater, a tubular grate with given ones of the tubes...
4347831 Fuel burning stove  
A fuel burning stove or furnace wherein combustion of fuel is more complete resulting in a greater amount of heat generation and a cleaner combustion residue. The stove includes a stove housing...
4320737 Flue arrangement for stove and fireplace  
A coal or wood burning stove or fireplace including a fire chamber, the upper part of which is defined by a cooking surface having a horizontally disposed top portion and an arcuate portion...
4281634 Wood burning space heating stove  
A space heating wood burning stove, formed as a rectangular fire box, having a plurality of horizontal flue ducts leading to a flue manifold, adapted to generate substantial vertical convection...
4265215 Space heater  
A passive type of space heater having a vertical air heating duct located at the rear of the combustion chamber and a flue duct extending through the air heating duct with its inlet located so as...
Matches 1 - 50 out of 73 1 2 >