Rolled electroactive polymers
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United States of America Patent
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May 10, 2005
Grant Date -
Jan 9, 2003
app pub date -
May 21, 2002
filing date -
May 22, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention describes rolled electroactive polymer devices. The invention also describes employment of these devices in a wide array of applications and methods for their fabrication. A rolled electroactive polymer device converts between electrical and mechanical energy; and includes a rolled electroactive polymer and at least two electrodes to provide the mechanical/electrical energy conversion. Prestrain is typically applied to the polymer. In one embodiment, a rolled electroactive polymer device employs a mechanism, such as a spring, that provides a force to prestrain the polymer. Since prestrain improves mechanical/electrical energy conversion for many electroactive polymers, the mechanism thus improves performance of the rolled electroactive polymer device.
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