Additional force augmented electroadhesion
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United States of America Patent
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Mar 17, 2015
Grant Date -
May 15, 2014
app pub date -
Oct 16, 2012
filing date -
Oct 19, 2011
priority date (Note) -
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Abstract
An electrostatic device or system includes electrode(s) adapted to produce an electrostatic attraction force and a base surface adapted to facilitate the application of the electrostatic attraction force and also a physical attraction force separate therefrom. The electrostatic and physical attraction forces can maintain a position of the electrostatic device relative to a foreign object via electroadhesion and/or via an additional manner that is separate from the electroadhesion. The physical attraction force can be a vacuum, van der Waals, and/or adhesive force, can be applied at less than all locations across the base surface, and may involve a one-time permanent attachment. The base surface can include a deformable surface portion that moves closer to the foreign object when the electrostatic or physical attraction force is applied. The physical attraction force can be sufficient to adhere the device to the object when the electrostatic attraction force is removed.
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