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Pressure sensitive switch

  • US 4,158,117 A
  • Filed: 11/08/1977
  • Issued: 06/12/1979
  • Est. Priority Date: 12/02/1976
  • Status: Expired due to Term
First Claim
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1. A pressure sensitive switch comprising a poly (vinylidene fluoride) (PVF2) sheet arranged to be compressed and laterally outwardly distended under a load, contact means conductively connected to each major surface of said sheet for receiving a signal generated by said sheet when compressed and distended by the load, two thick blocks of solid elastomeric material between which is sandwiched said sheet, and means for compressing and laterally outwardly distending both blocks by relative motion toward each other and also in the absence of tension forces compressing and laterally outwardly distending said sheet sandwiched therebetween to generate said signal.

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