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Class Information
Number: 431/89
Name: Combustion > Timer, programmer, retarder or condition responsive control > By condition of burner feed or feed means
Description: Apparatus in which a means sensing the condition in or of burner feed structure exerts a control.

Sub-classes under this class:

Class Number Class Name Patents
431/90 Sensor of one feed controls another feed 189

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8668491 Regulating device for gas burners Mar. 11, 2014
8641412 Combustion efficiency control system for a laminar burner system Feb. 4, 2014
8635997 Systems and methods for controlling gas pressure to gas-fired appliances Jan. 28, 2014
8591221 Combustion blower control for modulating furnace Nov. 26, 2013
8475162 Smart gas burner system for cooking appliance Jul. 2, 2013
8469019 Method and apparatus for providing ultra low gas burner performance for a cooking appliance Jun. 25, 2013
8434291 Systems and methods for detecting a flame in a fuel nozzle of a gas turbine May. 7, 2013
8425224 Mass air flow compensation for burner-based exhaust gas generation system Apr. 23, 2013
8303297 Method and apparatus for controlling combustion in a burner Nov. 6, 2012
8221115 Fuel combustion Jul. 17, 2012
8141788 Thermostatic control device Mar. 27, 2012
8141789 Method for controlling the temperature of an appliance Mar. 27, 2012
8113822 Combustion method and combustion apparatus Feb. 14, 2012
8083518 Combustion method and combustion apparatus Dec. 27, 2011
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
7987843 Burner improvement Aug. 2, 2011
7931467 Method for determining an air ratio in a burner for a fuel cell heater, a fuel cell heater Apr. 26, 2011
7922481 Method for setting the air ratio on a firing device and a firing device Apr. 12, 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
7856853 Rotary process for making mineral fiber insulation material Dec. 28, 2010
7802984 System and method for combustion-air modulation of a gas-fired heating system Sep. 28, 2010
7758335 Method for utilizing product leaks in compressor seal systems for recovery and recycling as fuel Jul. 20, 2010
7717702 Direct sidewall vent system May. 18, 2010
7670104 Fan with laminar flow element in front of the suction hole Mar. 2, 2010
7396228 Fuel gas calorie control method and device Jul. 8, 2008
7314370 Automated operation check for standing valve Jan. 1, 2008
7306456 Autocontrol burner and a combustion control method Dec. 11, 2007
7241135 Feedback control for modulating gas burner Jul. 10, 2007
7048536 Temperature-compensated combustion control May. 23, 2006
7008219 Boil-off gas processing system using electric heater Mar. 7, 2006
6991451 Air bleed apparatus for a burner unit Jan. 31, 2006
6984122 Combustion control with temperature compensation Jan. 10, 2006
6955535 Array for an automatic firing device for a gas or oil burner Oct. 18, 2005
6951455 Gas burner Oct. 4, 2005
6918757 Combustion apparatus Jul. 19, 2005
6887070 Fired furnace operation and apparatus May. 3, 2005
6875010 Excess gas burner Apr. 5, 2005
6835062 Fuel oil supply circuit for an oil burner having a solenoid valve in parallel circuit with diaphragm valve for controlling oil flow at start up Dec. 28, 2004
6793485 Combustion apparatus for NOx reduction Sep. 21, 2004
6764298 Method for controlling air fuel ratio in gas furnace Jul. 20, 2004
6752621 Method for setting the performance of gas-operated cooking devices as well as a cooking device using this method Jun. 22, 2004
6739865 System and method for disabling a furnace May. 25, 2004
6702571 Flex-flame burner and self-optimizing combustion system Mar. 9, 2004
6604938 Device for gas burners Aug. 12, 2003
6579087 Regulating device for gas burners Jun. 17, 2003
6571817 Pressure proving gas valve Jun. 3, 2003
6561791 Gas burner regulating system May. 13, 2003
6558155 Process for adjusting the water vapor content in a very high temperature furnace May. 6, 2003

1 2 3 4

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