Patent ID: 8400042

Claim:
A ripple spring, the ripple spring having a length extending along a length axis and a width extending along a width axis, the length axis being substantially orthogonal to the width axis, the ripple spring including a substantially sinusoidally shaped surface having a wavelength extending along a wavelength axis, the sinusoidally shaped surface having one or more valleys extending along a valley axis, the valley axis substantially orthogonal to the wavelength axis, the ripple spring comprising: one or more layers laminated together, the one or more layers forming a symmetrical stack, the one or more layers further comprising one or more bottom layers, one or more middle layers and one or more top layers; the one or more bottom layers, the one or more middle layers and the one or more top layers formed substantially of unidirectional fibers; wherein, the unidirectional fibers of the one or more bottom layers and the one or more top layers are oriented substantially along the wavelength axis; and wherein, the unidirectional fibers of the one or more middle layers are oriented substantially along the valley axis.