Temperature activated systems
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United States of America Patent
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May 23, 2006
Grant Date -
Jul 15, 2004
app pub date -
Dec 22, 2003
filing date -
Mar 23, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A shape memory material activated device of the present invention uses a shape memory material activator to create a path through a shell wall of the device. The path through the shell wall may release a substance contained in the shell or allow a substance to enter the shell. The path may be created by fracturing, puncturing, exploding, imploding, peeling, tearing, stretching, separating, debonding or otherwise opening the shell. The devices according to the present invention may be used as temperature sensors or warning devices, drug delivery devices, and the like.
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