Normally closed wafer switch

Details Normally closed wafer switch Normally closed wafer switch

1979-05-17

1981-10-20

Tolin, Gerald P.

Electricity: circuit makers and breakers

Multiple circuit control

Reciprocating contact

200 86R, 200275, 200333, 200 6158R, H01H 114

Patent

active

042962838

ABSTRACT:
A sealable wafer switch which is normally closed in relaxed position but which opens when squeezed. A lower stiff plate. A first curved conductive member mounted on the lower plate with the curvature extending in the upward direction. An insulating plate mounted on the lower curved plate the insulating plate having a central aperture. A second curved contact member mounted on the insulating plate and having its curvature extending in the downward direction with axis perpendicular to the other curved member. The first and second conductive members being in contact through the aperture when they are in relaxed position. An upper stiff plate mounted on the second curved contact member whereby when the upper and lower stiff plates are squeezed together the contact is broken.

REFERENCES:
patent: 3553404 (1971-01-01), Koenig
patent: 3584162 (1971-06-01), Krakinowski
patent: 3717735 (1973-02-01), Koenig
patent: 4037069 (1977-07-01), Gonzalez

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