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| Number | Title | Issue Date |
| 8109759 | Assured compliance mode of operating a combustion system A combustion system is operated with reference to compliant values of a governmentally regulated exhaust emission parameter. If an alarm condition is detected during an ordinary mode of operation, the combustion system is shifted into an assured compliance mode of o... | 02/07/2012 |
| 7628607 | Gas cooking appliance A microcomputer 51 of an electronic circuit unit 50 actuates an electric motor (stepping motor) 20 driving a thermal power control valve of a burner during or just after extinguishment of the burner to displace the thermal power control valve to... | 12/08/2009 |
| 7625201 | Method and apparatus for testing catalytic converter durability The present application relates in general to an apparatus and to methods for testing the performance of an automotive catalytic converter under conditions simulating those which occur in motor vehicles over extended driving conditions. The application provides a no... | 12/01/2009 |
| 7507085 | Gas regulating fitting A gas regulating fitting that, in addition to enabling an electronic ignition of the gas flow, also permits a manual ignition. A covering element (17) is displaceably mounted on the housing (1) of the gas regulating fitting and, in a first position, co... | 03/24/2009 |
| 7428901 | Cooking stove A cooking stove that prevents the execution of a process such as ignition of a burner when a touch switch changes from a non-sensing state to a sensing state. In STEP201, when a first touch switch, which is one of the touch switches provided in an operation, ... | 09/30/2008 |
| 7353140 | Methods for monitoring and controlling boiler flames The current invention provides a method and apparatus, which uses symbol sequence techniques, temporal irreversibility, and/or cluster analysis to monitor the operating state of individual burner flames on a appropriate time scale. Both the method and apparatus of t... | 04/01/2008 |
| 7296426 | Interactive control system for an HVAC system An interactive system for controlling the operation of an HVAC system is provide that comprises a thermostat for initiating the operation of the HVAC system in either a full capacity mode of operation or at least one reduced capacity mode of operation, and a control... | 11/20/2007 |
| 7293388 | Adaptive control system In an insect lure and trap, a system for generating a carbon dioxide attractant has a combustion chamber in which carbon dioxide is generated by means of an exothermic reaction from a gaseous fuel rich in carbon. A container contains a pressurized supply of said fue... | 11/13/2007 |
| 7249610 | Ratio controller with dynamic ratio formation For adjustment of a desired burner gas-air ratio over the broadest possible load range without additional pressure tapping of the burner, combustion chamber, or air lines, a ratio controller is provided that permits adjustment of the gas flow as a function of counte... | 07/31/2007 |
| 7223094 | Blower for combustion air A blower for combustion air in a wall/floor furnace is provided that includes a blower housing (26), and blower wheel (27), with an air inlet (28) and an air outlet (29), and with a fuel feeder line (1) for fuel, wherein a mass cur... | 05/29/2007 |
| 7118613 | Method and apparatus for cooling the components of a control unit of an emission abatement assembly A control unit for controlling operation of a fuel-fired burner includes a housing having an air inlet which is open to an interior chamber of the housing. An air pump is positioned in the interior chamber of the housing and has an air inlet which is open to the int... | 10/10/2006 |
| 7056113 | Gas light systems and methods of operation A gas light assembly including a stand member having a recessed portion sized to receive a fuel container. The recessed portion is accessible through an opening of the stand member. A panel member is coupled to the stand member and movable between a closed position ... | 06/06/2006 |
| 7033165 | Gas furnace controller A gas furnace controller for disrupting the flow of gas to a gas furnace upon detection of excessive levels of carbon monoxide comprises an air sample collector in fluid communication with a carbon monoxide detector, a gas supply shutoff circuit for controlling a va... | 04/25/2006 |
| 7008217 | Safety device for boiler comprising a time delay protected by an electronic circuit A safety device for an industrial boiler (CHA) including electromechanical relays (REn, RS), which are connected in series in order to form an electromechanical safety chain (CH1), and at least one shunt relay (RTn) which is normally ope... | 03/07/2006 |
| 7004749 | Combustion apparatus A combustion apparatus 2 has a fuel spraying nozzle 12, a feed canal 16 and a return canal 17, both the canals connected to the nozzle, with the former canal 16 feeding a fuel to the nozzle and with the later canal 17 allowi... | 02/28/2006 |
| 6984122 | Combustion control with temperature compensation Combustion control systems for maintaining a selected fuel-air ratio for a combustion apparatus supplied with air at a substantially constant volumetric rate are improved by means for adjusting the flow rate of fuel in relation to temperature fluctuations of the air... | 01/10/2006 |
| 6978726 | Combustion with reduced carbon in the ash Combustion of coal in which oxygen is injected into the coal as it emerges from burner produces ash having reduced amounts of carbon. ... | 12/27/2005 |
| 6955535 | Array for an automatic firing device for a gas or oil burner Automatic operation of a blower burner (5) suitable for liquid and/or gaseous fuels for the generation of heat energy in a furnace (1) is monitored by an automatic regulating device (35). The automatic regulating device (35) comprises an ... | 10/18/2005 |
| 6939127 | Method and device for adjusting air ratio A method for setting an air ratio of a fuel/air mixture made from a gaseous fuel and air for the operation of a burner, including the steps of: a) determining the mass current of the fuel as a first measured value, | 09/06/2005 |
| 6922612 | Combustion vibration estimating apparatus, plant and gas turbine plant The combustion vibration estimating apparatus comprises an inputting unit for inputting limiting values of plant data, weather data and internal pressure variation, an internal pressure variation characteristic grasping unit for making internal pressure variation of... | 07/26/2005 |
| 6908299 | Combustion apparatus A combustion apparatus 2 has a fuel spraying nozzle 12, a feed canal 16 and a return canal 17, both the canals connected to the nozzle, with the former canal 16 feeding a fuel to the nozzle and with the latter canal 17 allow... | 06/21/2005 |
| 6902391 | Temperature-controlled fuel valve, especially for a fuel-operated heating burner of a vehicle heating system A temperature-controlled fuel valve, especially for a fuel-operated heating burner of a vehicle heating system has at least one valve member (40) that is adjustable as a function of a temperature in the area of a heating burner (30). ... | 06/07/2005 |
| 6887070 | Fired furnace operation and apparatus A method and apparatus for continuing the operation of a fuel fired furnace when the air supply from the blower to the furnace is interrupted by employing a combination of a ventilator and drop door, the ventilator having a power source independent of the blower. | 05/03/2005 |
| 6851948 | System and method for draft safeguard A gas furnace responsive to a thermostat includes a thermal switch wired in series between the furnace power supply and the thermostat. A microprocessor connected to the thermal switch detects when the switch opens and closes, carrying out prearranged programs in re... | 02/08/2005 |
| 6802706 | Device and method to optimize combustion of hydrocarbons Device (10) and method to optimize the combustion of hydrocarbons able to be used as fuel and mixed with air containing oxygen, said device (10) comprising means (20, 23) to generate a magnetic field, advantageously of the pulsating type, in cor... | 10/12/2004 |
| 6794771 | Fault-tolerant multi-point flame sense circuit A fault-tolerant multi-point flame sense circuit utilizes a single electronic switch to signal the presence or absence of flame to an electronic controller. Multiple flame sense electrodes may be input to this circuit. By configuring these electrodes in accordance w... | 09/21/2004 |
| 6758913 | Method of cleaning pressurized containers containing anhydrous ammonia The present invention relates to a method of cleaning a container having an amount of anhydrous ammonia contained therein. The container is first inspected thoroughly for leaks. Heated nitrogen gas is then fed into the container. The heated nitrogen gas may be trans... | 07/06/2004 |
| 6672860 | Proximity warning system for a fireplace A proximity warning system for a fireplace including a monitor module and an alarm module. The monitor module is configured to sense when an object, such as a person, enters a defined zone proximate to the fireplace. The monitor module may use a variety o... | 01/06/2004 |
| 6653790 | Automatic gas lamp with safety control circuit A gas lamp system and method for lighting the system which utilizes a sparkless flame starter in close proximity to the torch to create a flame. The system further includes a safety control circuit which activates the sparkless flame starter and subsequen... | 11/25/2003 |
| 6604938 | Device for gas burners The invention relates to a device for gas burners, comprising at least two air nozzles 10, 11 for combustion air. The air nozzles 10, 11 are arranged in parallel. According to the invention, a flow restrictor 15 is assigned to one or more of the air nozzl... | 08/12/2003 |
| 6595201 | Safeguard for furnace draft system A draft safeguard apparatus for use in a multi-poised furnace having an inducer housing for receiving flue gases from a heat exchanger. The furnace flue pipe is attached to the inducer housing by an elbow that is rotatably connected to the inducer housing... | 07/22/2003 |
| 6572364 | Combustion control apparatus A conventional watchdog timer circuit is arranged to judge a microcomputer to be normal as long as a pulse signal is being outputted from the microcomputer. Therefore, an abnormal condition cannot be detected when an operating frequency of the microcomput... | 06/03/2003 |
| 6533574 | System for active regulation of the air/gas ratio of a burner including a differential pressure measuring system The system for active regulation of the air/gas ratio of a burner comprises one or two differential pressure measuring systems each of which has a differential pressure sensor with two inlet orifices. The orifices are respectively connected to pressure po... | 03/18/2003 |
| 6478574 | Pump purge for oil primary An oil burner control system is disclosed in which an extended time may be temporarily selected, in situations such as initial set up or periodic maintenance, for priming the pipes, filters and pumps, before a safety lockout of system operation occurs, wh... | 11/12/2002 |
| 6474979 | Device and method for triggering a gas furnace ignitor An ignitor controller and method of providing the same triggers an ignitor switch of a gas appliance, such as a furnace, subsequent to the zero-crossing of the line voltage, but before the voltage exceeds +/-five volts. This effectively reduces EMI levels... | 11/05/2002 |
| 6446426 | Miniature pulsed heat source A miniature heat source capable of being used in a hand-held device for delivering a metered pulse of fuel to a combustion chamber where it is converted into a pulsed amount of heat. For example, the heat source apparatus can be used in a hand-held cigare... | 09/10/2002 |
| 6439878 | Apparatus for controlling combustion device When an error occurs to a combustion device, a microcomputer inside a control apparatus for the combustion device closes a safety valve thereby stopping gas supply to a gas burner. In a conventional control apparatus, when a power source resetting is actu... | 08/27/2002 |
| 6435113 | Incineration apparatus and method which suppress generation of dioxins A method for decreasing the concentration of a chlorinated aromatic compound in the exhaust gas from a combustion furnace. The exhaust gas from the combustion furnace is passed through a bag filter. The concentration of the chlorinated aromatic compound i... | 08/20/2002 |
| 6428308 | Electronic fuel convertibility selection An apparatus for and method for providing easy and rapid conversion from a first fuel to a second fuel in a gas appliance. The gas appliance has a variable fuel valve controlled by a microprocessor. A table stored in non-volatile memory has an entry for e... | 08/06/2002 |
| 6419478 | Stepper motor driving a linear actuator operating a pressure control regulator An apparatus for and method for controlling the gas supply of a gas appliance. The gas appliance has a main burner with a main valve controlled by a linear actuator. A stepper motor positions the linear actuator under control of a microprocessor. The step... | 07/16/2002 |
