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Class Information
Number: 236/25R
Name: Automatic temperature and humidity regulation > Closed fluid heaters > Flow controlled
Description:










Sub-classes under this class:

Class Number Class Name Patents
236/25A Flow responsive valve controlling fuel 16


Patents under this class:

Patent Number Title Of Patent Date Issued
8561580 Engine cooling device Oct. 22, 2013
8561913 Device for dispensing water with variable temperatures Oct. 22, 2013
7278587 Thermal treatment apparatus and thermal treatment method Oct. 9, 2007
6212894 Microprocessor control for a heat pump water heater Apr. 10, 2001
6158231 Temperature regulating system employing thermostatic switching devices to assure safe operation of the system in both hazardous and non-hazardous applications Dec. 12, 2000
5322216 System and method for controlling outlet water temperature of an instantaneous water heater Jun. 21, 1994
5056712 Water heater controller Oct. 15, 1991
4880157 Capacity control for integrated furnace Nov. 14, 1989
4848655 Dual heating system Jul. 18, 1989
4781324 Preheat temperature balancing control Nov. 1, 1988
4738394 Integral liquid-backed gas-fired space heating and hot water system Apr. 19, 1988
4700886 Integrated, usage-dependent temperature control for gas water heaters Oct. 20, 1987
4664096 Oil and gas water heater May. 12, 1987
4593654 Combustion and feedwater controller for a flash boiler Jun. 10, 1986
4558818 Batch-type water heating apparatus Dec. 17, 1985
4515307 Hot water control system May. 7, 1985
4498622 Quick recovery heat pump water heater Feb. 12, 1985
4371779 Energy saving water heater control circuit Feb. 1, 1983
4364512 Zone heat control Dec. 21, 1982
4127085 Automatic hot water heater Nov. 28, 1978











 
 
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