Patent ID: 6819216
Filing Date: 2004-11-16
Classification: G05D

Abstract:
A thermostat comprising:(a) a housing; (b) a contact; (c) a switch mechanism accommodated in the housing; (d) a temperature sensing section for converting a volume change of gas, which is expanded or compressed in response to an ambient temperature, into force that operates the switch mechanism; (e) a lever receiving the force from the temperature sensing section for rotating on a first fulcrum to turn on or off the contact; (f) an adjusting plate engaging with the lever for rotating on a second fulcrum to increase or decrease the force necessary for rotating the lever; and (g) a cam shaft including a cam that rotates the adjusting plate, wherein the housing is placed outside a supporting wall that supports the first and the second fulcrums, and includes a wall that covers the first and the second fulcrums.