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Temperature activated systems

  • US 20060207495A1
  • Filed: 05/19/2006
  • Published: 09/21/2006
  • Est. Priority Date: 03/23/2000
  • Status: Active Grant
First Claim
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1. A shape memory material activated device for opening a shell containing a substance, the device comprising:

  • a shell containing a substance; and

    a shape memory material activator configured to create a path through the shell in response to exposure of the shape memory material to a temperature above a predetermined temperature, wherein the path through the shell provides variable release of the substance, wherein the device provides an indication of a time that the shape memory material activator has been above the predetermined temperature.

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