Membrane-type touch panel

Details Membrane-type touch panel Membrane-type touch panel

1988-02-18

1989-09-05

Envall, Jr., Roy N.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

H01H 926

Patent

active

048640840

ABSTRACT:
In a membrane-type touch panel including a pair of circuit layers having facing conductive circuit patterns normally separated by spacers defining voids through which regions of the circuit patterns can move to effect actuation, a series of projections are provided which, upon actuation, are adapted to act inwardly upon the outer surface of at least one of the two circuit layers at regions aligned with corresponding voids to reduce the required actuation force or to allow a reduction in the size of the spacer voids to reduce the possibility of false actuations.

REFERENCES:
patent: 3732384 (1973-05-01), Fischel
patent: 4382165 (1983-05-01), Balash et al.

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