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Touch controlled voltage-divider device

  • US 3,968,467 A
  • Filed: 11/01/1974
  • Issued: 07/06/1976
  • Est. Priority Date: 09/04/1973
  • Status: Expired due to Term
First Claim
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1. In a voltage-divider device:

  • a. a resistive member having an elongated resistive surface;

    b. a conductive member having an elongated conductive surface mounted in close spaced substantially coextensive relationship with said resistive surface;

    c. means for selectively establishing galvanic contact between each of a plurality of points along the length of said resistive surface and the point corresponding thereto along the length of said conductive surface by a touch of the finger;

    d. elongated voltage responsive visual indication means physically located along the length of said elongated resistive and conductive surfaces in close spaced substantially coextensive relationship therewith and adapted to produce a different visual indication in response to each of a plurality of different voltages corresponding to each of said plurality of points along the length of said resistive surface;

    e. terminal means for making electrical connection to opposite ends of said elongated resistive surface; and

    f. terminal means for making electrical connection from the conductive member to said elongated voltage responsive visual indication means.

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