Temperature responsive switch

Details Temperature responsive switch Temperature responsive switch

1981-03-27

1982-04-13

Harris, George

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With bimetallic element

337371, H01H 3752

Patent

active

043250475

ABSTRACT:
A temperature responsive switch is provided which comprises a pair of bimetal discs having different temperature-deformation characteristics, a pair of fixed electrical contacts and a movable electrical contact. The movable contact engages one of the fixed contacts in response to a deformation of the pair of bimetal discs or remain free from engagement with either fixed contact. The engagement of the movable contact with one or the other of the fixed contacts and the absence of its engagement with either fixed contact constitute three conditionswhich permits a detection of a temperature of at least three different regions.

REFERENCES:
patent: 3943480 (1976-03-01), Schmitt
patent: 4035756 (1977-07-01), Schmitt
patent: 4092624 (1978-05-01), Tomoyoshi
patent: 4198616 (1980-04-01), De Filippis
patent: 4218670 (1980-08-01), Watanabe

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