Membrane type touch panel employing piezoresistant anti-short me

Details Membrane type touch panel employing piezoresistant anti-short me Membrane type touch panel employing piezoresistant anti-short me

1976-11-22

1978-01-03

Scott, James R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200159B, H01H 1350, H01H 150

Patent

active

040668533

ABSTRACT:
A location sensitive touch panel for use on a rigid substrate. The substrate carries a first set of conductive strips. A resilient plastic membrane overlaying it carries a second set of conductive strips orthogonal to and spaced from the first set. Finger pressure can cause electrical contact between any one of the first set of strips and any one of the second set of strips. The substrate may be either flat or curved, with the membrane conforming to its contour.
A piezoresistant coating is interposed between the sets of conductive strips and may be disposed on either or both sets if strips.

REFERENCES:
patent: 3732389 (1973-05-01), Kaelin et al.
patent: 3777222 (1973-12-01), Harris
patent: 3987259 (1976-10-01), Larson
patent: 3988551 (1976-10-01), Larson
patent: 3995126 (1976-11-01), Larson
patent: 4017697 (1977-04-01), Larson
patent: 4017848 (1977-04-01), Tannas, Jr.
patent: 4018999 (1977-04-01), Robinson
patent: 4034176 (1977-07-01), Larson

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