Thermal switch

Details Thermal switch Thermal switch

1978-09-19

1979-12-18

Harris, George

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With fusible, combustible or explosive material

337408, H01H 3776

Patent

active

041796799

ABSTRACT:
A thermal switch in which a contact spring is formed from a flat strip of metal into a U-shape with inward extensions from the ends of the legs of the U, the outside faces of each of the legs of the U normally resiliently contacting one of a pair of parallel electrical leads. The contact spring is normally supported to contact the electrical leads by a fusible pellet and is resiliently biased by a compression spring to move parallel to the leads to break the contact when the fusible pellet melts.

REFERENCES:
patent: 2934628 (1960-04-01), Massar et al.
patent: 2955179 (1960-10-01), Milton et al.
patent: 3820050 (1974-06-01), Tyler et al.
patent: 4145654 (1979-03-01), Grimm

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