Patent ID: 9254907
Filing Date: 2016-02-09
CPC Classification: B64C

Claim Text:
1. A hoop load bearing aircraft transparency, comprising: a first ply having a first major surface on an exterior of the transparency, having an outer periphery and a groove on the first major surface about a perimeter of the first ply and extending to the outer periphery of the first ply, and a second major surface opposite the first major surface, wherein the first ply is transparent or translucent, and wherein the first major surface forms part of an aircraft exterior; a second ply spaced from the first ply and having a third major surface and a fourth major surface opposite the third major surface, wherein the second ply is transparent or translucent; at least one polymeric interlayer positioned between said second major surface of said first ply and said third major surface of said second ply and, wherein the at least one polymeric layer attaches the first ply to the second ply; at least one bore within the groove, having an inner wall, and extending through the at least one polymeric interlayer, the first ply and the second ply; and a bushing located in the at least one bore and in direct contact with the at least one interlayer, the first ply and the second ply, wherein the inner wall of the bore is tapered and the bushing has a tapered outer sidewall, the tapered bore and outer sidewall having a greater diameter at the first surface than at the fourth surface.