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Class Information
Number: 137/66
Name: Fluid handling > Combustion failure responsive fuel safety cut-off for burners > Thermo-electric
Description: Control systems wherein the safety valve is retained in its set or open position under the action of a solenoid, which solenoid is energized by the electric current generated by a thermoelectric element, e.g., a thermocouple, subject to the heat of the pilot burner or main burner.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8550428 Rotary gas tap with an integral electromagnetic valve Oct. 8, 2013
8479759 Device for controlling the supply of a combustible gas to a burner apparatus Jul. 9, 2013
8371844 Control system for the ignition of a gas burner Feb. 12, 2013
8347907 Electrical connection device for a gas control valve Jan. 8, 2013
8317511 Control valves for heaters and fireplace devices Nov. 27, 2012
8313325 Ignition switch of gas stove Nov. 20, 2012
8235064 Single coil redundant valve Aug. 7, 2012
8162002 Device for controlling the delivery of a combustible gas to a burner apparatus Apr. 24, 2012
8136517 Remote oven valve actuator Mar. 20, 2012
7970494 Systems and methods for monitoring relief valve drain in hot water Heater Jun. 28, 2011
7743780 Walker glide Jun. 29, 2010
7703470 Safety switch of gas stove Apr. 27, 2010
7654820 Control valves for heaters and fireplace devices Feb. 2, 2010
7256344 Electrothermal device for ignition and flame detection in gas burners Aug. 14, 2007
7252502 Method and system for combined standing pilot safety and temperature setting Aug. 7, 2007
7252109 Safety device for a lighting valve of a gas burner Aug. 7, 2007
7131462 Gas control valve assembly Nov. 7, 2006
7133726 Thermal cycler for PCR Nov. 7, 2006
7073526 Connecting an electrical cut-off switch in a gas appliance Jul. 11, 2006
7047995 Gas valve switch structure of gas stove May. 23, 2006
6968853 Power operated gas valve for heating, with a safety valve Nov. 29, 2005
6957657 Safety valve, in particular for cooking plate gas and related mounting method Oct. 25, 2005
6938634 Fuel control mechanism and associated method of use Sep. 6, 2005
6932101 Solenoid valve assembly for controlling gas supply Aug. 23, 2005
6899118 Single coil two operator controller May. 31, 2005
6886581 Gas valve with a thermoelectric security device May. 3, 2005
6840261 Gas valve switch structure of gas stove Jan. 11, 2005
6786225 Three-stage relay control Sep. 7, 2004
6769447 Gas control assembly Aug. 3, 2004
6766820 Field adjustable pilot guard Jul. 27, 2004
6748977 Valve Jun. 15, 2004
6672326 Valve unit for controlling the delivery of a combustible gas Jan. 6, 2004
6640802 Device for manual actuation of a gas distribution valve connected to a burner Nov. 4, 2003
6604538 Adjustable fluid flow regulator with adjustment limit Aug. 12, 2003
6604540 Gas control valve in water heater Aug. 12, 2003
6598621 Magnetic drives Jul. 29, 2003
6571829 Gas control valve in water heater Jun. 3, 2003
6536459 Control valve structure of a gas burner Mar. 25, 2003
6520199 Gas valve switch structure of gas stove Feb. 18, 2003
6498495 Method and apparatus for testing fuel gas control systems for gas fired appliances Dec. 24, 2002
6364656 Gas burner Apr. 2, 2002
6352428 Valve arrangement for controlling a gas fireplace Mar. 5, 2002
6322352 Gas burner system Nov. 27, 2001
6263908 Slow opening gas valve Jul. 24, 2001
6234189 Gas valve with thermoelectric safety shutoff May. 22, 2001
6213152 Safety gas valve arrangement for a cooking hob Apr. 10, 2001
6192913 Gas valve for pilotless gas burner Feb. 27, 2001
6082388 Control device for gas burners Jul. 4, 2000
6065484 Burner and pilot valve safety control system May. 23, 2000
5979484 Safety and regulation valve unit for a gas installation particularly a heating installation Nov. 9, 1999

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