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Touch switch with flexible, intermediate conductive spacer as sensor button

  • US 5,917,165 A
  • Filed: 02/17/1998
  • Issued: 06/29/1999
  • Est. Priority Date: 02/17/1997
  • Status: Expired due to Term
First Claim
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1. A touch contact switch being operated by contact or by approach comprising:

  • an evaluating circuit; and

    ,a sensor button forming one pole of a capacitor and being electrically connected to said evaluating circuit, said sensor button being a flexible, spatially extended, three-dimensionally variable and electrically conductive body, wherein switching is initiated by a change in capacitance, the change in capacitance caused by an contact member approaching said sensor button or said contact member contacting said sensor button.

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