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VARIABLE CAPACITOR

  • US 3,710,209 A
  • Filed: 08/13/1971
  • Issued: 01/09/1973
  • Est. Priority Date: 08/13/1971
  • Status: Expired due to Term
First Claim
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1. An electrostatic impulse key comprising:

  • a target board including an electrically conductive target and an electrically conductive ground plane surrounding said target and separated therefrom;

    a curved spring mounted on the other side of said electrically conductive ground plane from said target in a manner such that the distance between said curved spring and said target can be abruptly decreased when pressure is applied to the upper surface of said curved spring; and

    , key means for applying pressure to the upper surface of said curved spring to abruptly decrease the distance between said curved spring and said target when force is applied to said key means.

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