Patent ID: 7543791
Filing Date: 2009-06-09
Classification: F16F

Abstract:
1. A vibration isolation system comprising: a mass, a support surface on the mass; the mass coupled to a plurality of inverse pendulum assemblies; each inverse pendulum assembly comprising a center of mass supported by a rigid body extending upwardly from a supporting point in rolling contact with a base, the rigid body free to rotate about a transverse axis, the center of mass comprising a portion of the mass suspended from the rigid body of a respective inverse pendulum assembly above the base; each inverse pendulum assembly further comprising a foot comprising a convexly curved surface rotatably supported on the base; and wherein the rigid body each inverse pendulum assembly further comprises a housing extending upwardly from the foot, the center of mass suspended from a suspension point at an upper portion of the housing, wherein the effective center of mass at each inverse pendulum assembly is located below and close to the curvature center of the foot.