Bi-directional non-linear spring
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United States of America Patent
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Jul 2, 2019
Grant Date -
May 10, 2018
app pub date -
Nov 4, 2016
filing date -
Nov 4, 2016
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Abstract
A linear spring member having an annular region with a first thickness connected in series by cylindrical regions having a second thickness, wherein the first thickness is less than the second thickness. Outer portions of adjacent annular regions are coupled together by a first cylindrical region and inner portions of adjacent annular regions are coupled together by a second cylindrical region such that the effective spring rate of the bi-directional spring device increases symmetrically as it is displaced in either compression or tension.
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