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Unitized control panel

  • US 4,620,075 A
  • Filed: 06/07/1985
  • Issued: 10/28/1986
  • Est. Priority Date: 06/10/1983
  • Status: Expired due to Fees
First Claim
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1. In a unitized switch control panel:

  • (a) a flat, thin cover plate made of electrically conductive, flexible and resilient material having an outer surface and an inner surface lying is spaced, parallel planes;

    (b) said plate having on its outer surface, first grooves defining a plurality of discrete actuators in the normal, unflexed condition of said plate, which are of unrestricted configuration and array, said actuators having digitally engageable surfaces substantially coplanar with said outer surface of said cover plate;

    (c) said plate having on its inner surface, second grooves substantially paralleling the first grooves but laterally offset therefrom in directions parallel to the said planes of said cover plate surfaces;

    (d) said second grooves defining contact pads for said actuators substantially in said plane of said inner surface of said plate;

    (e) a circuit board having a plurality of pairs of contact segments arrayed to be bridged by said actuator pads when said actuator pads are depressed by digital pressure; and

    (f) an insulation spacer in contact with the circuit board on one side and said panel on the other, and having a plurality of apertures for said pairs of contact segments.

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