Electrical switch construction

Details Electrical switch construction Electrical switch construction

1978-09-11

1980-09-02

Schmidt, Frederick R.

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200159A, 200283, H01H 2144

Patent

active

042208351

ABSTRACT:
An electrical switch, comprises, a casing of a nonconductive material, having first and second spaced apart upstanding supports, with a contact plate of an electrically conductive material having an intermediate spring portion, with an outwardly extending arcuate bulge portion intermediate its length and a bridging member on each side of the spring portion, and an end portion on each end interconnecting the spring portion with at least one end of each bridging member and supported on respective spaced apart supports. The intermediate spring portion is held in an outwardly biased position extending in the direction of the arcuate portion by the contact plate construction, and it bears against an actuating member which may move it in a direction opposite to the bias direction. Fixed contact means are mounted in the housing in alignment with the movable contact means which are associated with the bridging members, and the movable contacts move into engagement with the fixed contact when the actuator is moved to displace the spring against the biasing thereof.

REFERENCES:
patent: 2734958 (1956-02-01), Immel et al.
patent: 4035596 (1977-07-01), Marquardt et al.

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