Beam-based nonlinear spring
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United States of America Patent
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Jul 5, 2016
Grant Date -
Aug 20, 2015
app pub date -
Jan 23, 2015
filing date -
Feb 19, 2014
priority date (Note) -
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Abstract
Nonlinear spring. In one embodiment, the spring includes two opposed curved surfaces curving away from one another. A flexible cantilever member is disposed between the two opposed curved surfaces and a mass is attached to a free end of the cantilever member wherein the flexible cantilever member wraps around one of the curved surfaces as the cantilever member deflects to form a nonlinear spring. Energy harvesting devices and a load cell are also disclosed.
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