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Class Information
Number: 236/21B
Name: Automatic temperature and humidity regulation > Closed fluid heaters > Safety cut-out > Water heater control with excessive temperature cutoff
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
8571692 Methods and computer program products for remotely managing power demand Oct. 29, 2013
7984861 Hydrant apparatus and water discharging method Jul. 26, 2011
7970494 Systems and methods for monitoring relief valve drain in hot water Heater Jun. 28, 2011
7891572 Temperature and low water monitoring for boiler systems Feb. 22, 2011
7438023 Heating device having a thermal cut-off circuit for a fuel line and method of operating the same Oct. 21, 2008
7090140 Method and device for monitoring burners Aug. 15, 2006
6981650 Pool/spa heater Jan. 3, 2006
6976636 Heater having over temperature shut off control Dec. 20, 2005
6059195 Integrated appliance control system May. 9, 2000
6024290 Fluid tempering system Feb. 15, 2000
5967766 Heater control system and methods of making Oct. 19, 1999
5947111 Apparatus for the controlled heating of process fluids Sep. 7, 1999
5788148 Vehicle heating appliance with overheating checking device Aug. 4, 1998
5685481 Trip-free high limit control Nov. 11, 1997
5586719 Control system for a hot water tank construction, control device therefor and methods of making the same Dec. 24, 1996
5312036 Instantaneous water heater which includes safety devices separately or in combination to prevent the explosion of the heat exchanger in the event of an excessive heating of the water in the he May. 17, 1994
5261598 Safety device for a combustion apparatus Nov. 16, 1993
5125068 Apparatus for controlling heating of fluids utilizing adjustable temperature set point Jun. 23, 1992
5092519 Control system for water heaters Mar. 3, 1992
5023432 Programmable hot water heater control device Jun. 11, 1991
4750452 Water heater Jun. 14, 1988
4690324 Oil burner control for hydronic system Sep. 1, 1987
4599992 Anticipatory thermostat with reset for domestic hydronic boiler control Jul. 15, 1986
4492092 Combination refrigerant circuit and hot water preheater Jan. 8, 1985
4470541 Control system for low mass hydronic boilers Sep. 11, 1984
4361274 Electronic temperature control Nov. 30, 1982
3961156 Combination temperature and pressure relief valve with energy cutoff switch Jun. 1, 1976
3948439 Sediment buildup warning device for water heaters Apr. 6, 1976











 
 
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