Patent ID: 7641949
Filing Date: 2010-01-05
Classification: B29C,B65D,Y10T

Abstract:
1. An improved composite over-wrapped pressure vessel having a thin wall, a hollow center and a longitudinal axis; said thin wall comprising a composite material having fibers disposed in a resin matrix, the improvement comprising at least a first and a second set of fibers of different types; said first and second sets of fibers of different types are mixed together; one layer of said first and second sets of fibers are helically oriented with respect to said longitudinal axis; and a second layer of said first and second sets of fibers are hoop oriented with respect to said longitudinal axis; said second set of fibers comprise about 5% to 55% fiber weight of said first and second sets of fibers; said first set of fibers selected from the group consisting of: said second set of fibers selected from the group consisting of: