Elongated key membrane switch

Details Elongated key membrane switch Elongated key membrane switch

1980-01-21

1981-04-28

Shepperd, John W.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 5A, H01H 1370

Patent

active

042647975

ABSTRACT:
A multi-layered membrane switch having a spacer layer with one or more tabs extending across the width of its cut out portion to provide support for an upper contact supporting layer.

REFERENCES:
patent: 3665126 (1972-05-01), Gabor
patent: 4145584 (1979-03-01), Otterlei

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