Push button switch having two resilient contacts operated at dif

Details Push button switch having two resilient contacts operated at dif Push button switch having two resilient contacts operated at dif

1981-12-23

1984-01-17

Marcus, Stephen

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

200246, 200 16R, 200159A, H01H 2140

Patent

active

044265590

ABSTRACT:
Disclosed is a two-motion push-button switch comprising first and second switch portions, each including a movable contact piece 4 formed of a thin elastic metal plate, which has a reversing portion 4b provided with a movable contact portion and arms 4a and 4a' formed to grip the reversing portion therebetween, an auxiliary spring 9 or 9' to be engaged with said arms and a fixed contact portion 2a or 3a formed at a position confronting the movable contact portion in a case 1 or 6, wherein the movable contact pieces are reversed by one slider 5 dismountably disposed in the case to drive said two switch portions and the reversing force by the movable contact piece and auxiliary spring constituting the first switch portion is different from the reversing force by the movable contact piece and auxiliary spring constituting the second switch portion.

REFERENCES:
patent: 1215665 (1917-02-01), Landis
patent: 2368193 (1945-01-01), Boynton
patent: 2923787 (1960-02-01), Nelson
patent: 3873078 (1975-03-01), Walt
patent: 3898402 (1975-08-01), Ford
patent: 3899648 (1975-08-01), Murata
patent: 3982086 (1976-09-01), Marquardt et al.
patent: 4002871 (1977-01-01), Sims, Jr.
patent: 4002879 (1977-01-01), Sims, Jr.
patent: 4186290 (1980-01-01), Matsuo
patent: 4190751 (1980-02-01), Roth et al.
patent: 4249055 (1981-02-01), Matsuo
patent: 4385218 (1983-05-01), Nishida

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