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| Number | Title | Issue Date |
| 7588028 | Biomass burner A burner comprising a fuel reservoir, a primary combustion zone located at the lower end of the fuel reservoir, a secondary combustion zone located underneath the primary combustion zone, a passage providing communication between the primary and secondary combustion... | 09/15/2009 |
| 7373937 | Draft control system and method for heating systems A draft control system and method can provide for automated control of the air drafting for heating systems. In accordance with an exemplary embodiment, an exemplary draft control system comprises at least one draft plate and a draft plate control system. Draft plat... | 05/20/2008 |
| 7337837 | Air conditioning system A self-contained, fully-integrated, energy efficient heating and cooling system or apparatus for conditioning the air on the interior of a building which includes a means for creating airflow through the apparatus, a section for cooling the airflow, a section for he... | 03/04/2008 |
| 7325541 | Adjustable primary air supply for wood burning device An adjustable primary air supply for wood burning device comprises at least one but preferably two thermostatic bimetal elements which, by bending with temperature variations, directly actuate a flap that opens and closes the air entry opening. Primary Air is the ai... | 02/05/2008 |
| 7275929 | Device and method for reducing fireplace particulate emissions A fireplace afterburner is presented including a shell having a first open shell end for receiving fireplace emissions and a second open shell end for expelling fireplace emissions, a flue inside said shell having a first flue end which can be closed, and a second f... | 10/02/2007 |
| 7216645 | Wood burning stove having pivoting baffle and method A wood burning stove is provided. The combustion chamber in which the fire occurs has a baffle plate that is moveable to direct air flow through one of two different pathways from the combustion chamber to the chimney. When in a first position, the baffle plate forc... | 05/15/2007 |
| 7138092 | Clip-mounted catalyst device A catalytic converter device for use with a device such as an oven is provided. The catalytic converter device includes a catalyst-coated ceramic substrate and a mounting ring. The mounting ring secures the ceramic substrate and is engagable with one or more surface... | 11/21/2006 |
| 7077122 | Reduced clearance gas fireplace A fireplace includes an outer enclosure having a front panel defining a front of the fireplace, and a combustion chamber enclosure defining a combustion chamber and including a front surface. The combustion chamber enclosure is positioned within the outer enclosure ... | 07/18/2006 |
| 7066170 | Apparatuses and methods for balancing combustion air and exhaust gas for use with a direct-vent heater appliance A combustion air and exhaust gas balancing system for use with a direct-vent heater appliance. The balancing system includes a combustion air valve in fluid communication with a combustion air duct and an exhaust gas valve in fluid communication with an exhaust gas ... | 06/27/2006 |
| 7047962 | Air control for a clean burning fireplace An automatic air intake control includes a timing mechanism that regulates the amount of air entering a combustion chamber enclosure during combustion of a fuel. The amount of air is regulated to provide an efficient and clean burn of a solid fuel. The control may i... | 05/23/2006 |
| 6968838 | Device and method for reducing fireplace particulate emissions A fireplace afterburner is presented including a shell having a first open shell end for receiving fireplace emissions and a second open shell end for expelling fireplace emissions, a flue inside said shell having a first flue end which can be closed, and a second f... | 11/29/2005 |
| 6935333 | Wood burner with improved emissions A wood burner includes a wrapper. A firebox is positioned in the wrapper that defines a combustion chamber. An air inlet is placed in communication with an external air supply. The air inlet includes a conduit to conduct the external air to the combustion chamber an... | 08/30/2005 |
| 6817354 | Wood burning furnace A wood burning furnace having an enclosed combustion chamber including a top, a bottom, a back, a front and opposing side walls and a secondary combustion air admission chamber including a top, a bottom, a back, a front and opposing side walls, the bottom wall of th... | 11/16/2004 |
| 6769424 | Heater with heat resistant anti-oxidant coating on interior surfaces A heater for burning fuel having a hollow enclosure with an air inlet, and a combustion gas outlet. The enclosure has an exterior heat exchange wall preferably directly exposed to ambient air and an interior surface defining a combustion chamber. The enclosure has a... | 08/03/2004 |
| 6761160 | Hollow walled solid fuel grill A solid fuel cooking device incorporates a combustion chamber bound by an open upper side and an open lower side and is substantially closed on four sides by a retaining wall. The combustion chamber is covered from above by a cooking surface grate and below by a sol... | 07/13/2004 |
| 6705310 | Wood burner with improved emissions A wood burner includes a wrapper. A firebox is positioned in the wrapper that defines a combustion chamber. An air inlet is placed in communication with an external air supply. The air inlet includes a conduit to conduct the external air to the combustion chamber an... | 03/16/2004 |
| 6688302 | Wood burning stove having pivoting baffle and method A wood burning stove is provided. The combustion chamber in which the fire occurs has a baffle plate that is moveable to direct air flow through one of two different pathways from the combustion chamber to the chimney. When in a first position, the baffle... | 02/10/2004 |
| 6615821 | Camp stove A portable stove and heater adapted for outdoor or camp use. The stove is comprised of at least three concentric walls affixed to a floor with vents placed in each of the walls to permit multiple pathways for transiting air to be heated prior to entering ... | 09/09/2003 |
| 6595199 | Stove for solid fuel A stove for solid fuel, with sensor controlled, motor driven adjustment means for respective different types of intake air and with a control unit which is programmable for selective control of the adjustment means in order to optimise the combustion unde... | 07/22/2003 |
| 6546926 | Brickless stove A wood burning stove in the shape of a barrel having both primary and secondary air inlets for supplying clean combustion. Primary air is fed into the stove from above the door. Secondary air is fed into a heating duct which extends along the bottom of th... | 04/15/2003 |
| 6520173 | Portable solid-fuel camp-stove A portable solid-fuel burning camp-stove with a unique air supply system that allows for sufficient thermal power output to facilitate cooking while keeping the size of the combustion chamber small enough to allow for acceptable packing weight for backcou... | 02/18/2003 |
| 6488024 | Wood heater A combustion system for burning firewood including a combustion chamber defined by front, rear and side walls, a ceiling and a bottom. An access door is provided for addition of fuel into the combustion chamber. A substantial amount of combustion air ente... | 12/03/2002 |
| 6484714 | High temperature fireplace grate including room heating transfer tubes An improved grate for burning solid fuel having a support for the fuel, a blower for transporting air through the support, a multiplicity of orifices jets uniformly distributed across the entire area of the grate and directed through the support generally... | 11/26/2002 |
| 6336449 | Solid fuel burner for a heating apparatus A burner system is described for burning granular pellets and similarly sized solid biomass heating fuel, e.g. wood pellets. It includes an air tight fire chamber having an exhaust outlet in an upper region thereof and a burner (10) in the bottom thereof ... | 01/08/2002 |
| 6332411 | Furnace The furnace is intended for burning solid fuel (mainly fire-wood) in continuous mode of operation, with significant amount of heat released in the form of hot combustion products usable in wood-drying installations, for house heating, destroying of refuse... | 12/25/2001 |
| 6308701 | Combustion system A combustion system includes a primary combustion chamber divided into left and right sides by fuel-retaining standards defining a canyon or void extending into a secondary combustion chamber is provided. The combustion system includes an automatic air se... | 10/30/2001 |
| 6216684 | Wood heater A combustion system for burning firewood including a combustion chamber defined by front, rear and side walls, a ceiling and a bottom. An access door is provided for addition of fuel into the combustion chamber. A substantial amount of combustion air ente... | 04/17/2001 |
| 6209535 | Heating apparatus A heating apparatus comprises a combustion chamber, formed of an assembly having a rear wall, two lateral walls, an upper wall and a lower wall. The combustion chamber has at least one outlet for flue gases. The walls forming said combustion chamber are c... | 04/03/2001 |
| 6145500 | Heating device The heating device has a housing and a liquid containing compartment defined inside the housing. A heating chamber is disposed inside the housing and the compartment. A fire chamber is disposed inside the heating chamber that produces hot combustion gases... | 11/14/2000 |
| 6123066 | Low emission fireplace This invention relates to heating apparatus and particularly compact heating apparatus fuelled by a flammable fluid such as gas in which a visible flame is provided. The appearance of the visible flame and the fireplace setting within the heating apparatu... | 09/26/2000 |
| 6067979 | Combustion system A combustion system includes a primary combustion chamber divided into left and right sides by fuel-retaining standards defining a canyon or void extending into a secondary combustion chamber is provided. The floor of the primary combustion chamber and th... | 05/30/2000 |
| 6041770 | Bi-metallic control device A bi-metal control flap for a wood stove is biased to close by gravity and is controlled to open an air inlet when the temperature rises which is opposite to the traditional bi-metal control systems which close when the temperature rises. The valve is a f... | 03/28/2000 |
| 6041771 | Apparatus and method of automatically regulating intake of air into heating unit This invention relates to a novel apparatus and method for automatically and dynamically regulating the intake of air into the combustion chamber of a heating unit such as a wood burning stove, furnace, or fireplace to ensure even and efficient burning of... | 03/28/2000 |
| 6029654 | Vented fireplace construction A vented wood or gas-log fireplace is formed from a sheet metal member bent to form side and rear panels. A pair of spaced apart sheet metal plates are connected between the side panels and have rear edges spaced from the rear panel. The rear edges of the... | 02/29/2000 |
| 5941234 | Combustion cage for wood pellet and other solid fuel combustion A combustion cage for pellet fuel is an inclined container having at least one wall surrounding a bottom and a support structure. The surrounding wall and bottom of the container have a plurality of holes throughout imparting a hole-to-surface ratio of at... | 08/24/1999 |
| 5918589 | Low moisture/closed door broil oven ventilation system An oven having a ventilation system capable of providing reduced temperature, low moisture exhaust air is provided. The oven has an oven cavity defined by a partition having a through hole and enclosed by an oven door having an air inlet to accept incomin... | 07/06/1999 |
| 5901701 | Unvented fireplace construction An unvented gas-log fireplace is formed from a sheet metal member bent to form side and rear panels. A pair of spaced apart sheet metal plates are connected between the side panels and have rear edges spaced from the rear panel. The rear edges of the plat... | 05/11/1999 |
| 5819725 | Aerodynamic device for increasing the flickering of a natural gas flame A process and apparatus for combustion of a gaseous fuel in a fireplace in which a plurality of periodic vortices are created in the airflow pattern of the combustion air prior to its mixing with the gaseous fuel, thereby producing a more natural looking,... | 10/13/1998 |
| 5740789 | Modification of the gas stove by installing oxygen booster A combination of a gas stove with oxygen device is provided. The disclosure comprises generally a pair of valves secured to the front side of a gas stove. The valves each has a rotor plug therein and each rotor plug has an elongate shaft axially connected... | 04/21/1998 |
| 5702244 | Apparatus and method for reducing particulate emissions from combustion processes A method and apparatus for reducing particle emissions from combustion processes and increasing combustion efficiency. A high voltage electrical potential is passed through a combustion flame to agglomerate particles, which are then removed from the exhau... | 12/30/1997 |
