Membrane switch having a puff ink spacer

Details Membrane switch having a puff ink spacer Membrane switch having a puff ink spacer

1980-10-14

1982-04-13

Little, Willis

Electricity: circuit makers and breakers

Liquid contact

Time delay

200 5A, 200262, H01H 312

Patent

active

043249620

ABSTRACT:
A membrane switch of the type having a substrate and a flexible membrane. Both the substrate and membrane have a set of electrical conductors formed thereon. The conductors are in facing relation and are separated by a spacer. The spacer has openings in line with switch sites of the conductors to allow electrical contact in response to pressure on the flexible membrane. The spacer is formed of puff ink.

REFERENCES:
patent: 3960044 (1976-06-01), Nagai et al.
patent: 4158115 (1979-06-01), Parkinson et al.

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