Patent ID: 7249756

Claim:
A vibration isolation device comprising: a flexure element comprising upper and lower flexure sections generally aligned to a common longitudinal axis; a viscoelastic material (VEM) layer having first and second facial surfaces such that the first facial surface is attached to both the upper and lower flexure sections; a stiff constraining layer attached to the second facial surface of the VEM layer such that motion of the upper flexure section relative to the lower flexure section is constrained by the stiff constraining layer and therein induces shearing of the VEM layer; wherein the upper and lower flexure sections each have an attachment means and an attachment proximate portion such that the attachment proximate portion of the upper flexure section is a minimal controlled distance from the attachment proximate portion of the lower flexure section, wherein the flexure element further comprises at least one flexure loop section, wherein the attachment proximate portions of the upper and lower flexure sections are connected to one another within the flexure element by the at least one flexure loop section, and wherein the at least one flexure loop section is of independent shape and cross section relative to the attachment proximate portions of the upper and lower flexure sections, and is of independent shape and cross section relative to the minimal controlled distance between the attachment proximate portions of the upper and lower flexure sections.