Virtual pivot axis spring
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United States of America Patent
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Oct 20, 2015
Grant Date -
Aug 15, 2013
app pub date -
Jun 24, 2011
filing date -
Jun 25, 2010
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Abstract
A spring includes a first, inner, continuous frame and a second, continuous frame enveloping the first frame. The first and second frames is made of a flexible material of high yield stress. The first and second frame have a common frame portion constituting a minor proportion of the first frame compared to the remainder of the first frame. The first and second frames are plane arranged generally in a common plane in their unloaded state and arranged for being deformed generally in the common plane.
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