Abstract: The present disclosure relates to thermostats. In one illustrative embodiment, a thermostat includes a housing defining a cavity, an electrical contact, a temperature sensitive disc that is configured to transition from a first stable state to a second stable state at a first temperature, and a spring disc having a first stable state and a second stable state. During operation, the temperature sensitive disc may apply a force to the spring disc that causes the spring disc to transition from its first stable state to its second stable state when the temperature sensitive disc transition from its first stable state to its second stable state at the first temperature. The force required to move the spring disk from the first stable state to the second stable state may be less than the force required to move the spring disk from the second stable state to the first stable state.

Abstract: A one-shot thermostat includes a temperature sensitive element that is responsive to temperature to move from a first position to a second position when its temperature increases above a first temperature, and from the second position back to the first position when its temperature decreases below a second temperature. A switch moves from a first switch position to a second switch position when the temperature sensitive element moves from the first position to the second position. A spring element is configured to supply a retainer force to the switch when the temperature sensitive element moves from the first position to the second position that retains the switch in the second switch position when the temperature sensitive element moves from the second position back to the first position.