Locking Device Using Shape Memory Materials
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United States of America Patent
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Issued Date -
Sep 16, 2010
app pub date -
Jun 25, 2007
filing date -
Jun 23, 2006
priority date (Note) -
Abandoned
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Abstract
The disclosed devices use shape memory materials, and specifically shape memory polymers and composites to allow or disallow mechanical or physical movement. By positioning the shape memory polymer so it is near the mechanical device which is to be moved, the shape memory polymer will allow or disallow the motion of the mechanical device depending on the state the shape memory polymer is in. When the shape memory polymer is in its hard rigid state the device cannot move. Once activated the shape memory polymer will become soft and pliable, whereupon with sufficient force the mechanical device can be moved to a new position. Once in this new position the SMP can either remain in its relaxed state, the SMP can return to a hard rigid state and maintain its deformed shape, or the SMP can return to its original shape to ensure the device does not move.
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