Thermally sensitive controls

An assembly for use in a thermally sensitive control for a thick film electric heater, the assembly comprising a snap acting bimetallic actuator, and a movable electrical contact, said bimetallic actuator and said contact being mounted on common leaf spring means which in use act to resiliently to bias the actuator into thermal contact with the heater and the movable contact into electrical contact therewith.

A thermally sensitive control for a thick film electric heater comprising a bimetallic actuator arranged for making good thermal contact with the heater, and a movable electrical contact for engagement with a contact provided on the heater, said movable contact being operatively coupled to the bimetallic actuator such that in use upon operation of the actuator, it moves out of engagement with the heater contact to interrupt the electrical supply to the heater, said bimetallic actuator and said movable contact being mounted on commonly mounted leaf spring means which act in use resiliently to bias the actuator into thermal contact with the heater and the movable contact into electrical contact therewith.

An integrated electrical connector and control unit for a thick film electric heater comprising an electrical connector having a connector body housing terminals for engagement with terminals in a complementary connector and, mounted on top of said connector body, and extending laterally therefrom, a leaf spring mounting a contact for making electrical connection to the heater, and a bimetallic actuator for making good thermal contact with the heater.