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| Number | Title | Issue Date |
| 7435081 | Method and system for pilot light safety A gas valve includes a gas inlet in fluid communication with a first chamber, a second chamber in selective fluid communication with the first chamber, a gas outlet in selective fluid communication with the second chamber, a pilot light outlet in fluid communication... | 10/14/2008 |
| 7252502 | Method and system for combined standing pilot safety and temperature setting The method and apparatus provides a controller (which might comprise a microprocessor) that can control gas flow to a pilot burner in fluid communication with a manual pilot valve and an automatic pilot valve. The exemplary embodiments can comprise a selectable inpu... | 08/07/2007 |
| 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 |
| 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 |
| 6981865 | Catalyst combustion system, fuel reforming system, and fuel cell system A catalyst combustor (11) includes an inner catalyst combustion portion (20) connected to a substitute fuel supply line (LS21, 12, 16) and a substitute oxidizer supply line (LS22, 13), an outer catalyst combustion portion (40) conn... | 01/03/2006 |
| 6932101 | Solenoid valve assembly for controlling gas supply A solenoid valve assembly for controlling gas supply and opening and closing gas supply with a regulation function generally includes a solenoid valve assembly having a housing, a diaphragm assembly, a first and second solenoid valves, a first and second valve bodie... | 08/23/2005 |
| 6920377 | Self-sustaining control for a heating system A self-sustaining control for a heating system, having conventional operational modes and pilot burner assembly, is disclosed. A controller directs operation in accordance with a need-based protocol and monitors the condition of a storage device, which provides syst... | 07/19/2005 |
| 6644960 | Device for supplying fuel and comburent to one or more arrays of burners A device for supplying one or more arrays (1, 2) of burners (3), in which each burner (3) comprises at least one fuel inlet line (302) and at least one comburent agent inlet line (301). The said lines (302, 301) of the burners (3) are connected upstream r... | 11/11/2003 |
| 6571829 | Gas control valve in water heater A gas control valve in a water heater is provided for improving the ease of assembling, minimizing the size and the cost, and decreasing the limitation of layout design. For example, in a flame-retention, storage type closed vessel gas water heater for au... | 06/03/2003 |
| 6312250 | Premix burner with firing rate control A premix burner apparatus includes a burner structure and a firing rate control system. The burner structure defines a premix reaction zone configured to communicate with a process chamber. The burner structure further defines a plurality of separate entr... | 11/06/2001 |
| 6082388 | Control device for gas burners The device comprises a safety valve with an actuator which can be armed manually, a regulation valve disposed in a duct downstream of the safety valve for supplying a main burner, a tapping duct for supplying a pilot burner, and a flame detector for the p... | 07/04/2000 |
| 6010327 | Fuel control system, parts, and methods of making A fuel control system, parts therefor, and methods of making are provided. The fuel control system includes a fuel control valve unit (FCU) and a fuel conduit having an end secured in a fuel outlet opening in a housing of the fuel control valve unit. The ... | 01/04/2000 |
| 5975884 | Stand-alone device for igniting, regulating and operating gas appliances A temperature control system for gas operated devices. The system includes a burner (23) that is connected to a gas supply through a regulator (41). A pilot light assembly (26) has a first vane (29) and a second vane (32) which provide a flame for ignitin... | 11/02/1999 |
| 5967766 | Heater control system and methods of making A heater control system, parts therefor, and methods of making them are disclosed. The heater control system includes a fuel control unit having a thermocouple operated unit in the housing thereof, which has an opening therein leading to the thermocouple ... | 10/19/1999 |
| 5961317 | Combustion head assembly A combustion head assembly comprising a mounting plate having a plurality of apertures and adapted for mounting to a boiler, and a plurality of combustion heads removably mounted in each of the apertures. The combustion heads each have a fuel nozzle and i... | 10/05/1999 |
| 5787874 | Gas-fired ceramic-cooktop burner A cooking assembly has a main burner, a pilot burner mounted in it and having a vent, a gas valve having separate main and pilot gas outlets, and a main-burner controller including a temperature sensor on the main burner, a control unit on the valve capab... | 08/04/1998 |
| 5749718 | Multi-burner gas control apparatus Gas control apparatus to regulate the flow of gas to a plurality of burners is disclosed. The apparatus permits a main gas solenoid valve to be actuated for a pre-determined period of time allowing the burners to be ignited. If the burners are not ignited... | 05/12/1998 |
| 5582516 | Multi-burner gas control apparatus Gas control apparatus to regulate the flow of gas to a plurality of burners is disclosed. The apparatus permits a main gas solenoid valve to be actuated for a pre-determined period of time allowing the burners to be ignited. If the burners are not ignited... | 12/10/1996 |
| 5452687 | Microprocessor-based boiler sequencer A boiler sequencer system having a microprocessor based controller which allows the firing rate for multiple boilers to be increased or decreased with a proportional output integrated with the process variable rate of recovery that is desired, preventing ... | 09/26/1995 |
| 5372497 | Process and apparatus for igniting a burner in an inert atmosphere According to this invention there is provided a process and apparatus for the ignition of a pilot burner in an inert atmosphere without substantially contaminating the inert atmosphere. The process includes the steps of providing a controlled amount of co... | 12/13/1994 |
| 5158447 | Primary gas furnace control A primary gas furnace control including a thermostatically controlled intermittent ignition system, the control being effective to monitor and control main gas valve action through use of flame rectification. The control features a slight delay on main va... | 10/27/1992 |
| 5127823 | Control system for a gas furnace, control device therefor and methods of making the same A control system for a gas furnace, control device therefor and methods of making the same are provided, the system comprising an electrical circuit that has a metal oxide varistor therein that is adapted to interconnect one end of a secondary winding of ... | 07/07/1992 |
| 5099822 | Cooking apparatus with at least one glass-ceramic cooking plate A cooking range in which a burner below a glass-ceramic plate is ignited with a glow igniter switched off in response to an ionization detector when combustion products are effected so as to prevent excessive heating of the glow igniter.... | 03/31/1992 |
| 5094612 | Gas injection pipe for sequential burner in gas variable-power boilers Gas injection pipe for a sequential burner in gas variable-power boilers. An array of gas injectors which are located on the injection pipe may each be plugged by a corresponding valve which is mounted on the free end of a rigid blade transversely extendi... | 03/10/1992 |
| 4986468 | Test circuit for system monitoring apparatus A gas fired burner includes a pilot gas valve and a burner gas valve sequentially operated to light the burner. A monitor includes individual monitoring of the status of the valves and the burner as well as other components and systems associated with the... | 01/22/1991 |
| 4971549 | Fuel control unit for a gas furnace and method of making the same A control unit for a gas furnace that has an electrically operable pilot gas valve and an electrically operable main gas valve and a method of making the control unit are provided, the control unit comprising an electrical circuit having a gas valve secti... | 11/20/1990 |
| 4915614 | Primary gas furnace control A primary gas furnace control including a thermostatically controlled intermittent ignition system, the control being effective to monitor and control main gas valve action through use of flame rectification. The control features a slight delay on main va... | 04/10/1990 |
| 4867191 | Solar activated gas light control module A self-contained gas light control module is disclosed as including a tubular housing with a main tubular gas line extending through the housing and a normally open electro-mechanical valve in the gas line to permit flow of gas therethrough at night. Duri... | 09/19/1989 |
| 4865539 | Fuel control unit for a gas furnace and method of making the same A control unit for a gas furnace that has an electrically operable pilot gas valve and an electrically operable main gas valve and a method of making the control unit are provided, the control unit comprising an electrical circuit having a gas valve secti... | 09/12/1989 |
| 4836770 | Primary gas furnace control A primary gas furnace control including a thermostatically controlled intermittent ignition system, the control being effective to monitor and control main gas valve action through use of flame rectification. The control features a slight delay on main va... | 06/06/1989 |
| 4755133 | Primary gas furnace control A primary gas furnace control including a thermostatically controlled intermittent ignition system, the control being effective to monitor and control main gas valve action through use of flame rectification. The control features a slight delay on main va... | 07/05/1988 |
| 4680005 | Primary gas furnace control A primary gas furnace control including a thermostatically controlled intermittent ignition system, the control being effective to monitor and control main gas valve action through use of flame rectification. The control features a slight delay on main va... | 07/14/1987 |
| 4627416 | Water heater A water heater is disclosed having a heat exchanger, a main burner means for heating the heat exchanger, a standing burner, a main fuel passage means for supplying fuel to the main burner, a manual valve on the main fuel passage means which is operable by... | 12/09/1986 |
| 4626192 | Primary gas furnace control A primary gas furnace control including a thermostatically controlled intermittent ignition system, the control being effective to monitor and control main gas valve action through use of flame rectification. The control features a slight delay on main va... | 12/02/1986 |
| 4614491 | Multiple burner control apparatus A single blower/multiple burner control system including a burning chamber, having a plurality of burners disposed therein. An equal number of conduits extend from the burning chamber to a manifold being supplied with a constant supply of air under pressu... | 09/30/1986 |
| 4583936 | Frequency modulated burner system A furnace (A) defines a combustion chamber (10) in which a pair of burners (B) are mounted for oxidizing the fuel to heat the combustion chamber. An air blower (12) supplies air to the burners at a rate controlled by a rate control valve (18). A frequency... | 04/22/1986 |
| 4543974 | Gas valve with combined manual and automatic operation A gas valve assembly has a safety valve and two controlled valves connected in series. A first of the controlled valves is electromatic and a second is a conventional pressure controlled valve. A control knob provides for manual control of the safety valv... | 10/01/1985 |
| 4505253 | Water heater A water heater is disclosed having a main burner for heating a heat exchanger and a standing burner, and is also provided with an electromagnetic safety valve which is opened by a manual operation member and which is kept in its valve open condition by th... | 03/19/1985 |
| 4483673 | Catalytic combustion arrangement The disclosure is directed to an improved catalytic combustion arrangement for use, for example, in a gas stove or the like, which has a heat insulation diffusion layer is provided in a catalytic mat layer for the improvement of combustion rate around the... | 11/20/1984 |
| 4435150 | Gas burner control system Upon a call for heat, gas flows to a pilot burner, a spark generating circuit is energized to ignite the pilot burner, and an oscillator is energized. When flame appears, the output signal of the oscillator is effective, through flame responsive means inc... | 03/06/1984 |
