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Class Information
Number: 236/14
Name: Automatic temperature and humidity regulation > Combined boiler and furnace controlled
Description: Devices controlling the fire under a boiler according to conditions in the boiler and also according to conditions in the furnace.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8521333 Method and apparatus for flue gas recirculation Aug. 27, 2013
8070482 Combustion control system of detection and analysis of gas or fuel oil flames using optical devices Dec. 6, 2011
7161678 Systems and methods for determining the existence of a visible plume from the chimney of a facility burning carbon-based fuels Jan. 9, 2007
6039261 Process for improving the combustion of a blow-type burner Mar. 21, 2000
5279263 Cascaded steam temperature control applied to a universal pressure boiler Jan. 18, 1994
5261337 Combustion control method of refuse incinerator Nov. 16, 1993
5230293 Method and apparatus for controlling a refuse incineration plant Jul. 27, 1993
5199385 Through the wall vented water heater Apr. 6, 1993
5161488 System for purifying contaminated air Nov. 10, 1992
5052310 Solid waste-to-steam incinerator capacity enhancement by combined oxygen enrichment and liquid quench Oct. 1, 1991
5044326 Flammable waste liquid combustion system and method Sep. 3, 1991
5027751 Method and apparatus for optimized boiler operation Jul. 2, 1991
4984524 Technique for controlling the combustion of fuel having fluctuating thermal values Jan. 15, 1991
4922861 Multiple-purpose instantaneous gas water heater May. 8, 1990
4901678 Heating boiler and method for operating same Feb. 20, 1990
4895082 Technique for controlling the combustion of fuel having fluctuating thermal values Jan. 23, 1990
4838183 Apparatus and method for incinerating heterogeneous materials Jun. 13, 1989
4819587 Multiple-purpose instantaneous gas water heater Apr. 11, 1989
4805114 Economical dispatching arrangement for a boiler system having a cogenerative capability Feb. 14, 1989
4802446 Safety device for subcritical pressure steam boilers Feb. 7, 1989
4791889 Steam temperature control using a modified Smith Predictor Dec. 20, 1988
4779795 Convector room heater incorporating a hot water boiler Oct. 25, 1988
4770340 Boiler air flow controlling apparatus Sep. 13, 1988
4768469 Operation control apparatus for recovery boilers Sep. 6, 1988
4749122 Combustion control system Jun. 7, 1988
4724775 Method and apparatus for controlling the rate of heat release Feb. 16, 1988
4716858 Automatic firing rate control mode means for a boiler Jan. 5, 1988
4697530 Underfed stoker boiler for burning bituminous coal and other solid fuel particles Oct. 6, 1987
4637348 Apparatus for controlling starting operation of boiler Jan. 20, 1987
4628869 Variable temperature waste heat recovery system Dec. 16, 1986
4598648 Fire failure safety control for stokers Jul. 8, 1986
4582026 Feed-forward type automatic control system Apr. 15, 1986
4574746 Process heater control Mar. 11, 1986
4564141 Apparatus and method for domestic hot water control Jan. 14, 1986
4519540 Sealed gas heater with forced draft and regulation by microprocessor May. 28, 1985
4499857 Fluidized bed fuel burning Feb. 19, 1985
4498428 Combustion control for a boiler Feb. 12, 1985
4497283 Boiler control Feb. 5, 1985
4489679 Control system for economic operation of a steam generator Dec. 25, 1984
4486165 Combustion control apparatus of a combustion furnace Dec. 4, 1984
4457266 Boiler control Jul. 3, 1984
4451003 Control scheme and apparatus for a cogeneration boiler May. 29, 1984
4408569 Control of a furnace Oct. 11, 1983
4403293 Control apparatus for use in multiple steam generator or multiple hot water generator installations Sep. 6, 1983
4392417 Variable dead band pressure control system Jul. 12, 1983
4362269 Control system for a boiler and method therefor Dec. 7, 1982
4278052 Boiler control system Jul. 14, 1981
4251025 Furnace control using induced draft blower and exhaust stack flow rate sensing Feb. 17, 1981
4241701 Method and apparatus for controlling steam temperature at a boiler outlet Dec. 30, 1980
4067684 Apparatus for controlling fuel flow fluid heater burner Jan. 10, 1978

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