Patent ID: 8813455
Filing Date: 2014-08-26
Classification: E04C

Abstract:
1. A deployable truss, comprising: two primary chords, said primary chords comprising a plurality of primary chordal members connected end-to-end by alternating primary orthogonal joints and primary chord center-hinge joints, wherein said primary orthogonal joints have different geometry than the primary chord center-hinge joints; at least one secondary chord, said secondary chord comprising a plurality of secondary chordal members connected end-to-end by alternating secondary orthogonal joints and secondary chord center hinge-joints, wherein said secondary chord hinge joints have different geometry than the secondary chord center-hinge joints; and a plurality of fixed-length diagonal members, each with a first end and a second end, the first end jointedly connected to a primary orthogonal joint, and the second end jointed connected to a secondary orthogonal joint, wherein the primary orthogonal joints are not vertically or laterally aligned with the secondary orthogonal joints wherein the diagonal members fold in planes between their respective primary chords and secondary chords when the truss is retracted; and further; wherein the primary chordal members fold inward in a plane at an angle to the folding planes of the diagonals when the truss is retracted, and the secondary chordal members fold in a plane orthogonal to the folding plane of the primary chordal members.