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Class Information
Number: 431/90
Name: Combustion > Timer, programmer, retarder or condition responsive control > By condition of burner feed or feed means > Sensor of one feed controls another feed
Description: Apparatus in which the means sensing the condition in one burner feed line controls the flow of a second to the burner.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8640731 Flow rate control device Feb. 4, 2014
8635997 Systems and methods for controlling gas pressure to gas-fired appliances Jan. 28, 2014
8636024 Fuel supply device Jan. 28, 2014
8591221 Combustion blower control for modulating furnace Nov. 26, 2013
8550811 Method for feeding hot gas to a shaft furnace Oct. 8, 2013
8434291 Systems and methods for detecting a flame in a fuel nozzle of a gas turbine May. 7, 2013
8303297 Method and apparatus for controlling combustion in a burner Nov. 6, 2012
8109758 System and control method for detecting an abnormal burning situation using air pressure sensing and flame detection Feb. 7, 2012
8075304 Modulated power burner system and method Dec. 13, 2011
8011921 System and control method for detecting an abnormal burning situation using air pressure sensing and flame detection Sep. 6, 2011
7981200 Flare stack adapted to heat incoming fuel Jul. 19, 2011
7874834 Air fuel ratio sensor of incinerator Jan. 25, 2011
7871263 System for controlling air/fuel ratio in a gas flow containing gaseous fuel Jan. 18, 2011
7857898 Flare stack adapted to heat incoming fuel Dec. 28, 2010
7758335 Method for utilizing product leaks in compressor seal systems for recovery and recycling as fuel Jul. 20, 2010
7744366 System and method for improving the thermal efficiency of a heating system Jun. 29, 2010
7581945 System, method, and article of manufacture for adjusting CO emission levels at predetermined locations in a boiler system Sep. 1, 2009
7396228 Fuel gas calorie control method and device Jul. 8, 2008
7249610 Ratio controller with dynamic ratio formation Jul. 31, 2007
7090486 Control device for a burner and adjusting method Aug. 15, 2006
7048536 Temperature-compensated combustion control May. 23, 2006
7004749 Combustion apparatus Feb. 28, 2006
6991451 Air bleed apparatus for a burner unit Jan. 31, 2006
6904873 Dual fuel boiler Jun. 14, 2005
6872071 Device for adjusting the oxidation agent/fuel mixture in the feeding pipe of a burner Mar. 29, 2005
6764298 Method for controlling air fuel ratio in gas furnace Jul. 20, 2004
6749423 System and methods for modulating gas input to a gas burner Jun. 15, 2004
6579087 Regulating device for gas burners Jun. 17, 2003
6561791 Gas burner regulating system May. 13, 2003
6537060 Regulating system for gas burners Mar. 25, 2003
6533574 System for active regulation of the air/gas ratio of a burner including a differential pressure measuring system Mar. 18, 2003
6450801 Liquid fuel stove apparatus Sep. 17, 2002
6429020 Flashback detection sensor for lean premix fuel nozzles Aug. 6, 2002
6428308 Electronic fuel convertibility selection Aug. 6, 2002
6332408 Pressure feedback signal to optimise combustion air control Dec. 25, 2001
6206687 High turndown modulating gas burner Mar. 27, 2001
6190160 Process for combustion of a fuel with an oxygen-rich oxidant Feb. 20, 2001
6189461 Burning apparatus and method for restricting the occurrence of dioxins Feb. 20, 2001
6135063 Dual regulator direct-fired steam generator Oct. 24, 2000
6095793 Dynamic control system and method for catalytic combustion process and gas turbine engine utilizing same Aug. 1, 2000
6065956 Universal mixer device for mixing two gaseous fluids May. 23, 2000
6050807 Method and apparatus for controlling an amount of air of a gas boiler Apr. 18, 2000
6042365 Fuel combustion monitoring apparatus and method Mar. 28, 2000
6035810 Pulse combustor and boiler for same Mar. 14, 2000
6019593 Integrated gas burner assembly Feb. 1, 2000
5997280 Intelligent burner control system Dec. 7, 1999
5997278 Apparatus for providing an air/fuel mixture to a fully premixed burner Dec. 7, 1999
5989011 Burner control system Nov. 23, 1999
5919035 Cross flow type burner apparatus Jul. 6, 1999
5887583 Mass flow control system and method for asphalt plant Mar. 30, 1999

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