PICKUP-TEMPERATURE RELAY Russian patent published in 1997 - IPC

FIELD: automatic control, regulation and monitoring of various thermal processes, specifically for switching on and off of electric circuit when temperature of monitored medium deviates from specified one. SUBSTANCE: pickup-temperature relay has case, commutation elements installed in it, pusher, membrane in the form of perforated disc joined to pusher, temperature-sensitive power element. Mentioned membrane or pusher is used as one of contacts. Temperature-sensitive power element is manufactured from material with memory of shape. EFFECT: enhanced operational accuracy, expanded range of commutation currents, simplified design and diminished dimensions. 7 cl, 5 dwg