Patent ID: 8161775
Filing Date: 2012-04-24
Classification: D03D,D10B,Y10T

Abstract:
1. An integrated hollow fabric structure of a generally cylindrical shape having a central axis, comprising: (a) at least first and second groups of winding yarns, each group having a plurality of winding yarns regularly arranged in one or more layers, wherein the winding yarn layers of the first and second groups are alternately stacked in the radial direction to define an inner surface, an outer surface and a radial thickness therebetween, and wherein the plurality of winding yarns of the first group is helically oriented at a first angle, α (b) a plurality of binder yarns, each binder yarn defining alternately a plurality of binder loops and a plurality of holding loops interlaced with corresponding crossovers for interlocking the winding yarn layers of the first and second groups, wherein each binder loop receives at least one crossover at one surface and each holding loop is placed between crossovers and exposed to the other surface.