Patent ID: 6597274
Filing Date: 2003-07-22
Classification: H01H

Abstract:
A bimetal snap disc thermostat comprising:a phenolic body assembly having a predetermined thermal limit; a switch in said body assembly; a bimetal snap disc mounted on said body assembly; an operator operating said switch in response to snap movement of said bimetal snap disc; said snap disc and said body together defining a heater chamber; a pair of heater terminals extending outwardly from said heater chamber through a pair of radially spaced slots provided in said body assembly; at least one resistance heater having a pair of leads secured to respective ones of said terminals to support said heater within said chamber in closely spaced proximity to said snap disc and with said leads and said heater in spaced relationship to said body assembly, said body assembly including a bridge portion comprising a generally planar surface bounded in a first direction by said heater chamber and in a second direction by said radially spaced slots, said spacing between said body, said heater and said snap disc being such that said heater provides at least a 40Â° F. temperature depression without exceeding said predetermined thermal limit.