Abstract: A thermally responsive electric switch has an open ended, cup shaped, thermally and electrically conductive housing containing a thermostatic disc. A base of electrically insulative material, mounting a stationary contact arm, is received in the open end of the housing and captures an end of a movable contact arm between the base and the housing. The movable contact arm extends through a window in the stationary contact arm and has an opposite end disposed adjacent to the outer periphery of the disc and is adapted to be moved by the disc when it snaps from an unactuated to an actuated configuration to thereby control switch actuation.

Abstract: A thermally responsive valve having dual operating temperatures comprises a main body having two openings which are connected through passages in the body to an internal operating space in the body, two dish-shaped bimetal elements disposed in spaced relation to each other within the internal operating space to divide the operating space into three sections, the bimetal elements being movable in response to variations in temperature to engage and disengage respective valve seats to close and open passages between the internal operating space and the openings, and an annular wave-shaped spring arranged between the two bimetal elements holding the elements in said spaced relation.