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Class Information
Number: 236/78C
Name: Automatic temperature and humidity regulation > Motors > Electric > Relay > Reversible motor
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
6851620 Floating actuator control system and method Feb. 8, 2005
6786058 Control device of simple construction for a household electrical appliance Sep. 7, 2004
6554198 Slope predictive control and digital PID control Apr. 29, 2003
6360958 Vehicle air conditioning apparatus with hot water flow control Mar. 26, 2002
6189323 Air conditioner with improved valve controller and valve control method therefor Feb. 20, 2001
5810245 Method and apparatus for controlling air flow in a structure Sep. 22, 1998
5342027 Damper position control device for automotive air conditioning system Aug. 30, 1994
5316263 System for controlling electronic expansion valve provided in refrigerating machine May. 31, 1994
5226595 Vehicle passenger compartment temperature control system with multi-speed response Jul. 13, 1993
5213259 Paint booth humidity and temperature control system May. 25, 1993
5172566 Temperature regulating apparatus for refrigerators Dec. 22, 1992
5163301 Low capacity control for refrigerated container unit Nov. 17, 1992
5145456 Automotive air-conditioner Sep. 8, 1992
5127576 Vehicle passenger compartment temperature control system with P.I.D. control of heater servo-valve Jul. 7, 1992
5039010 Relay-controlled anticipation in a two switch thermostat Aug. 13, 1991
4899809 Automotive air conditioner system with automatic adjustment of discharge air temperature Feb. 13, 1990
4875341 Control apparatus for refrigerated cargo container Oct. 24, 1989
4739923 Hot/cold water mixing device Apr. 26, 1988
4682728 Method and apparatus for controlling the temperature and flow rate of a fluid Jul. 28, 1987
4456166 Temperature control system for air conditioners Jun. 26, 1984
4431131 Heating arrangements and control systems therefor Feb. 14, 1984
4422571 Proportional motor drive control Dec. 27, 1983
4421269 System for control of water temperature Dec. 20, 1983
4393921 Circuit controlling coolant flow to a non-linear heat exchanger through a non-linear electromechanical valve Jul. 19, 1983
4192455 Apparatus for controlling the supply temperature in a central heating installation Mar. 11, 1980
4139153 Electronic reversible motor operated valve assembly Feb. 13, 1979
4095741 Proportional electrical control system Jun. 20, 1978
4078721 Greenhouse control device Mar. 14, 1978
4072268 Heating control system Feb. 7, 1978
4017024 Stack damper control arrangement Apr. 12, 1977











 
 
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