http://www.freepatentsonline.com/6427948.html
It could as well be some kind of a simple mechanical device that bends the fins when force applied.
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Jun 23, 2009
Controllable Vortex Generator - M. Cambell
United States patent number 6427948 (2002) describes an interesting vortex generator that can be controlled by electric current. Check the following pictures and links for more details.
http://www.freepatentsonline.com/6427948.html
It could as well be some kind of a simple mechanical device that bends the fins when force applied.
http://www.freepatentsonline.com/6427948.html
It could as well be some kind of a simple mechanical device that bends the fins when force applied.
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