Push-button switch

Details Push-button switch Push-button switch

1987-03-25

1989-05-16

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Membrane type

200290, H01H 312

Patent

active

048312231

ABSTRACT:
In a push-button switch, serially connected first, second and third coaxial springs having gradually increasing diameters are disposed between a key top and contact members, a key stem extends through the second and third springs for operating the contact members through the first spring.

REFERENCES:
patent: 3586810 (1971-06-01), Brown
patent: 4313685 (1982-02-01), Stahl et al.
patent: 4468542 (1984-08-01), Pounds
patent: 4529848 (1985-07-01), Cherry
patent: 4613737 (1986-09-01), Nishijima
patent: 4755645 (1988-07-01), Naoki et al.

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