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| Number | Title | Issue Date |
| 6971380 | Cylindrical catalytic heater A catalytic heater with a cylindrical combustion chamber. The catalytic heater may be positioned centrally to provide heat for a number of people or an area. A reflective top is movable to along a side of the cylindrical combustion chamber for directing the heat in ... | 12/06/2005 |
| 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 minimum of parts, with a duplication of some parts, to min... | 12/11/2001 |
| 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 chamber. One or more vent holes are formed proximal the opposin... | 02/29/2000 |
| 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 chamber to accelerate the burning process. The thermal barri... | 01/04/2000 |
| 5609113 | Particulate waste wood fuel, method for making particulate waste wood fuel, and a method for producing energy with particulate waste wood fuel A particulate waste wood fuel comprising wood particles comprising less than 20% water by weight and having a particle size distribution suitable for combustion of the particulate wood fuel in a particulate fossil fuel suspension furnace. A method for mak... | 03/11/1997 |
| 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) of chamotte arranged, for example, as heating panels, hea... | 09/10/1996 |
| 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 includes a combustion air blower system for providing combu... | 06/04/1996 |
| 5359945 | 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 includes a combustion air blower system for providing combu... | 11/01/1994 |
| 5351633 | Balanced pressure solid fuel heating unit A pellet fuel burning heating unit having a firebox with a burner therein connected to a combustion air duct, an exhaust pipe to remove combustion gases from the firebox, a blower to provide combustion air and a pressure regulator and air splitter to divi... | 10/04/1994 |
| 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 are provided within a firebox at selected locations relative... | 08/30/1994 |
| 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 material is burned, a stove housing separate but operatively ... | 06/28/1994 |
| 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 carbon monoxide concentration, by volume, of about 0.04% or... | 02/15/1994 |
| 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 operates automatically in sequence with the fuel feed and... | 11/16/1993 |
| 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 stove may completely contain a fire within it when its bottom ... | 04/20/1993 |
| 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 prevent air flow restriction directed to the medially positione... | 11/24/1992 |
| 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 chamber, a chimney, a firebox, and a hopper. Combination ... | 09/08/1992 |
| 5133266 | Pellet burning heating device A pellet burning heating device (20) designed to operate at a combustion efficiency of about 90-98% (based on the carbon derived combustion efficiency formula), and to emit exhaust gases having a carbon monoxide concentration, by volume, of about 0.04% or... | 07/28/1992 |
| 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 the atmosphere. Each combustor has a downstream side thro... | 09/24/1991 |
| 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 moving auger conveyor which feeds a second faster moving suga... | 03/26/1991 |
| 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 when the modular elements are positioned for installation.... | 04/24/1990 |
| 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 manner, a chamber of combustion formed by vertical walls and t... | 01/30/1990 |
| 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 for supporting the tube means with its open bottom end direc... | 10/24/1989 |
| 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 (4) being provided with an oven door (1) positioned in the ... | 07/25/1989 |
| 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 baffle, and another combustor being positioned in a portion... | 07/04/1989 |
| 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 from view. In one embodiment, side panels are hinged to the s... | 04/04/1989 |
| 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 gravity-induced downward movement owing to the greater density of the... | 10/25/1988 |
| 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 downstream side of the valve higher than the pressure insid... | 09/13/1988 |
| 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 of the pipe, each having a passage above the level of the... | 12/22/1987 |
| 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 and connected therewith; a discharge conduit for the combu... | 05/05/1987 |
| 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 insulated passageway comprises a generally transversely exte... | 12/16/1986 |
| 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 air is introduced to burning fuel through an apertured ther... | 04/08/1986 |
| 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 a second planar screen. The planar screen is perforated t... | 11/19/1985 |
| 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 movement into and out of an operating position adjacent to the op... | 11/19/1985 |
| 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 chamber mounted on the holding board and/or a holding con... | 08/06/1985 |
| 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 grate 20. Grate 20 inclines to slope downward with increasing... | 05/07/1985 |
| 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 communication with a primary combusiton chamber. The secondary... | 04/16/1985 |
| 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 is of larger diameter than the other so that it commences... | 12/11/1984 |
| 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 directed towards the chimney flue and an outer end outside t... | 11/13/1984 |
| 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 draft therein effecting a multitude of upwardly rising air s... | 09/25/1984 |
| 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 and a cover each of which is formed from smaller modules ... | 08/21/1984 |
