Push button-type switch

Details Push button-type switch Push button-type switch

1974-06-11

1976-03-23

Schaefer, Robert K.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200153V, H01H 1352, H01H 348

Patent

active

039461815

ABSTRACT:
A push button-type switch comprising a rectangular casing having parallel end walls, parallel side walls and a bottom wall and opening at the top, said end walls, side walls and bottom wall defining a switching chamber therebetween, a key stem extending vertically within and projecting upwardly of said switching chamber for upward and downward movement; a return spring disposed about said key stem for normally urging the key stem upwardly, a movable spring contact carried by said key stem within said switching chamber for movement between engaging and disengaging positions; and stationary contact means on said side walls to be engaged by said movable spring contact.

REFERENCES:
patent: 2521561 (1950-09-01), Batcheller
patent: 3061692 (1962-10-01), Fowler
patent: 3818169 (1974-06-01), Kobernus

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