Patent ID: 7013608

Claim:
A three-dimensional structure comprising: at least three compression members situated on the surface of a first hyperboloid of revolution of one sheet having a mid-plane that is perpendicular to the conjugate axis of said first hyperboloid, wherein each said at least three compression members includes: a first portion located on the surface of said first hyperboloid on one side of the mid-plane of said first hyperboloid; and a second portion located on the surface of said first hyperboloid on the other, second side of the mid-plane of said first hyperboloid; a first set of at least three tension members that connect said first compression member portions with one another; a second set of at least three tension members that connect said second compression member portions with one another; and a third set of at least three tension members that each connects at least one of said first compression member portions with at least one of said second compression member portions of a different compression member, wherein at least three tension members are configured in a radial configuration.