Patent ID: 8061692

Claim:
A floor isolation system protecting an item against lateral movements of a planar substrate, the system comprising: a platform for supporting the item; rolling supports that support the platform above the substrate, the rolling support having a frictional resistance that allows the platform to be effectively isolated from the lateral movements of the substrate in any horizontal direction after installation and during use; and a multidirectional spring unit located under the platform in a space created by the rolling supports, the multidirectional spring unit comprising: a stationary case fixedly mounted to a top of the substrate; and a cable having a first portion lying horizontally inside the stationary case and a second portion extending vertically to exit from the stationary case, an end of the second portion of the cable being secured to a bottom of the platform; wherein the multidirectional spring unit provides a resistive force against pulls on the cable in any horizontal direction after installation and during use to limit lateral displacements of the platform caused by the lateral movements of the substrate.