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VARIABLE CAPACITIVE APPARATUS

  • US 3,671,822 A
  • Filed: 12/17/1970
  • Issued: 06/20/1972
  • Est. Priority Date: 12/17/1970
  • Status: Expired due to Term
First Claim
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1. A variable capacitance device comprising:

  • a first conductor with at least one planar surface;

    a second conductor with at least one planar surface;

    a third conductor with at least one planar surface and having at least one edge;

    a fourth conductor with at least one planar surface and having at least one edge;

    means for mounting the edge of the third conductor substantially in the plane of the surface of the first conductor;

    means for mounting the edge of the fourth conductor substantially in the plane of the surface of the second conductor;

    a push button;

    means responsive to at least some movement of the push button for pivoting the third conductor substantially along the edge thereof for altering the average distance between the surface of the first conductor and the surface of the third conductor, whereby the capacitive coupling between the first and third conductors is altered; and

    means responsive to further movement of the push button for pivoting the fourth conductor along the edge thereof for altering the average distance between the surface of the second conductor and the surface of the fourth conductor, whereby the capacitive coupling between the second and fourth conductors is altered after the alteration of the capacitive coupling between the first and third conductors.

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