Thermostat-controlled electric switch

Details Thermostat-controlled electric switch Thermostat-controlled electric switch

1982-09-21

1985-02-19

Scott, J. R.

Electricity: circuit makers and breakers

Fluid pressure

Diaphragm

200 83Z, H01H 3524

Patent

active

045007608

ABSTRACT:
A thermostatic switch with a pair of switch contacts opened and closed by a first pivotably mounted lever urged in one direction by a spring and in the other by a bellows to alternately open and close the switch to operate a compressor. A manual switch can be rotated to vary the spring force through a cam follower and is also movable in and out of the housing. When moved into the housing a second lever is pivoted to engage the first lever and the cam follower so the force required by the bellows to pivot the first lever is such that defrosting occurs.

REFERENCES:
patent: 4082929 (1978-04-01), Thorsen
patent: 4274546 (1981-06-01), Branson et al.

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