Thermostat and method of testing thereof

Details Thermostat and method of testing thereof Thermostat and method of testing thereof

H - Electricity

01

H

306/172

H01H 37/54 (2006.01) G01R 31/02 (2006.01) H01H 37/12 (2006.01)

Patent

CA 1120979

ABSTRACT OF THE DISCLOSURE A thermostat is disclosed and claimed in which a total- ly enclosed switch is operated by a bimetal snap disc. The housing is provided with a small opening through which a testing probe may be inserted to test the gaging of the assembled de- vice. Such opening is closed by a thin adhesively applied clos- ure element, the application of which cannot alter the operation of the thermostat. A method of testing is also disclosed in which the thermostat is essentially fully assembled and then thermally cycled while a probe extends through a small opening to monitor the position of the movable element of the switch to determine the position within the snap range of the disc at which the switch closes. After the testing, the opening through which the testing probe extends is closed to complete the assem- bly of the device.

346094

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