Thermostatic switch with reset mechanism

A thermostatic switch, comprising a housing having a cavity formed therein, a temperature responsive bimetallic disc located in said housing and being responsive to a predetermined temperature for exerting a flexing action, a first contact member located in said cavity and being electrically interconnected to a first terminal external to said housing, a second contact member located in said cavity adjacent to said first contact member and being electrically interconnected to a second terminal external to said housing, said second contact member being spring mounted and movable between a switch-closed position in which it makes electrical contact with said first contact member and a switch open position, spaced from said first contact member and normally spring biased toward the switch-closed position, a first actuating member located in said housing and being responsive to flexing movement of said disc for moving said second contact member from said switch-closed position to said switch open position, locking means for locking said second contact member in the switch open position said locking means being releasable from engagement with said second contact member, wherein said second contact member is free to return to the normally closed position by spring action thereof, when both the locking means is released and said actuating member is in the switch-closed position, said locking means mounted on a flexible support normally positioned in a locking position, and a release actuating member engageable with said locking member and operable externally of said housing to flex said flexible support member to the release position, said release actuating member not independently operable to move said second contact member into its switch closed position.