Power driven valve actuator
Programmable thermostat and system therefor
Regulating circuit for the valve of a refrigeration plant
Regulating drive, especially for a thermostatically controlled v
Shape memory actuator
Temperature control system including K-Factor adjustment
Temperature-monitoring and control system
Thermostat apparatus for use with temperature control system
Thermostat with adjustment for the cycling rate of the heating p
Valve for liquid injection into a refrigerant evaporator
Valve modulation method and system utilizing same