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Variable-conductance sensor with elastomeric dome-cap

DC CAFC
  • US 6,135,886 A
  • Filed: 07/24/1998
  • Issued: 10/24/2000
  • Est. Priority Date: 10/01/1997
  • Status: Expired due to Term
First Claim
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1. An improved method for using an elastomeric injection molded dome-cap sensor of the type wherein an elastomeric injection molded dome-cap carries an active element which is positioned over a portion of an electronic circuit, said elastomeric injection molded dome-cap depressible for transferring force into said active element, said active element when under force electrically contacting conductive elements of said electronic circuit, said electronic circuit structured for reading the active element as being in any one of a plurality of states;

  • wherein the improvement comprises the steps of;

    a) depressing variably said elastomeric injection molded dome-cap;

    b) reading said active element as being in any one of at least three readable states;

    c) storing, as digital information, a read state of said active element, said storing as digital information requiring at least two digital bits.

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