Electrical snap-action switch

Details Electrical snap-action switch Electrical snap-action switch

1976-08-18

1978-10-03

Engle, Samuel W.

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200159A, H01H 518

Patent

active

041186095

ABSTRACT:
A flat snap-action push-button switch comprising a sheetmetal spring with two elongated slots dividing the sheetmetal member into three coherent strips, is disclosed. The center strip is extended beyond the point of junction of the strips, and carries contacts which cooperate with fixed contacts on a printed circuit board. By depressing the center strip the spring snaps over thus opening one contact and closing another. The switch is particularly suited for use with key boards of electronic pocket calculators.

REFERENCES:
patent: 2616996 (1952-11-01), Beeman
patent: 3306998 (1967-02-01), Russell
patent: 3800104 (1974-03-01), Lien et al.
patent: 4046982 (1977-09-01), Schadow et al.

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