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Class Information
Number: 236/68C
Name: Automatic temperature and humidity regulation > Motors > Relay > Auxiliary heater > Auxiliary heater applied to control device away from main temperature sensor

Patents under this class:

Patent Number Title Of Patent Date Issued
6857576 Control method of an electronic thermostat valve Feb. 22, 2005
6581847 Variable-air-volume diffuser, actuator assembly and method Jun. 24, 2003
5984257 Fluid flow regulating valve using thermal expansion material Nov. 16, 1999
5520329 Method and apparatus for compensating for environmental effect May. 28, 1996
4890790 Engine cooling system, structure therefor and methods of making the same Jan. 2, 1990
4819868 Electromechanical device associated with thermoactuators for use in vehicle climate control and air conditioning systems Apr. 11, 1989
4760955 Control system for heating and cooling apparatus of building Aug. 2, 1988
4605162 Emergency ventilator opener for livestock houses Aug. 12, 1986
4475686 Valve for liquid injection into a refrigerant evaporator Oct. 9, 1984

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