Patent ID: 8561829
Filing Date: 2013-10-22
Classification: F17C,Y02E

Abstract:
1. A pressure vessel, comprising: a rigid ported fitting having an annular flange formed on an end thereof; a rigid tank enveloping said annular flange wherein said ported fitting forms an opening of said tank, said tank having an inner surface and an outer surface; and a crack arresting barrier bonded to and forming a lining of said tank within said outer surface thereof, said crack arresting barrier enveloping said annular flange, said crack arresting barrier including a cured resin having a post-curing ductility rating of at least approximately 60% throughout said cured resin, said crack arresting barrier further including (i) randomly-oriented fibers positioned in and throughout said cured resin, and (ii) nano-sized particles mixed in said cured resin.