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Efficient piezoeletric-triggered time delay module

  • US 7,804,223 B1
  • Filed: 04/16/2007
  • Issued: 09/28/2010
  • Est. Priority Date: 04/27/2006
  • Status: Active Grant
First Claim
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1. An efficient piezoelectric-triggered time delay module for use with a percussive primer or shock device, comprising:

  • a) a logic capacitor and a firing capacitor that are separate from each other;

    b) control electronics;

    c) a firing switch;

    d) an initiator; and

    ,e) two piezoelectric transducers that respectively correspond to said logic capacitor and to said firing capacitor;

    whereineach said piezoelectric transducer is impedance-matched to the respective corresponding capacitor and is made of the same material as the respective corresponding capacitor resulting in a close tracking of impedance over a range of temperatures.

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