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Touch control potentiometer

  • US 5,945,929 A
  • Filed: 09/29/1997
  • Issued: 08/31/1999
  • Est. Priority Date: 09/27/1996
  • Status: Expired due to Fees
First Claim
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1. A touch control potentiometer comprising a plurality of laminae joined to form a laminate, each of the laminae being formed of electrically nonconductive material and having an upper surface and a lower surface opposite from the upper surface, a lower one of the laminae bearing on the upper surface thereof a first electrically conductive trace of elongate outline, an upper one of the laminae being flexible under digital pressure and bearing on the lower surface thereof a second electrically conductive trace aligned with the first trace and having the outline thereof, a central one of the laminae being interposed between the upper and lower laminae and formed with an aperture aligned with the first and second traces and having an outline complementary to the outline common thereto, one of the traces being formed of a material having relatively high electrical resistance, the other of the traces being formed of a material having relatively low electrical resistance, and a plurality of electrically conductive leads extending outwardly from the laminate and comprising first and second leads in contact with said one trace at respective ends thereof, and a third lead in contact with said other trace at one end thereof.

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