Flow control assemblies having integrally formed shape memory alloy actuators
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United States of America Patent
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Apr 1, 2008
Grant Date -
Jul 20, 2006
app pub date -
Mar 10, 2006
filing date -
Apr 28, 2003
priority date (Note) -
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Abstract
In one embodiment of the present invention, a shape memory alloy ('SMA')-actuated flow controller comprises a number of grille members, each having a long axis and being slideable relative to one another parallel to that long axis. The SMA-actuated flow controller also includes a frame configured to guide the number of grille members, and an actuator disposed within the frame to move at least one of the number of grille members for varying a size of an aperture. Further, the actuator includes an SMA actuator that includes a number of SMA elements each connecting one grille member to another.
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