Adjustable electric thermostat with temperature compensation

Details Adjustable electric thermostat with temperature compensation Adjustable electric thermostat with temperature compensation

1990-08-31

1991-07-16

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

Expansible or vaporizable fluid actuated

337323, 337327, H01H 3776, H01H 3712

Patent

active

050328182

ABSTRACT:
An adjustable electric thermostat comprises a main housing in which an adjustment shaft is threadedly engaged so that the shaft end inside the housing is displaced when the shaft is turned, a heat transducer mounted on the shaft end, and a switch comprising a channel-shaped, rigid member having a base portion attached on a wall of the housing and opposite branches having notches to support a snap-action blade so that the temperature transducer abuts transversely against an intermediate point in the blade. According to the invention, the channel-shaped member is made of a bimetal plate having the most expansible metal on the outside, so that the branches of the channel-shaped member bend toward each other when the channel-shaped member is heated.

REFERENCES:
patent: 4260977 (1981-04-01), Kicherer et al.
patent: 4710742 (1987-12-01), Cors et al.

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