Patent ID: 9683815
Date: 2017-06-20
CPC Classifications: A42B,B32B,F41H,Y10S,Y10T

Claim:
1. A lightweight molded helmet that is resistant to penetration by rifle bullets, said helmet comprising a shell, said shell comprising from the outside to the inside: a first plurality of fibrous layers, said fibrous layers comprising high tenacity abrasive fibers impregnated with a first resin matrix; a second plurality of fibrous layers attached to said first plurality of fibrous layers, said second plurality of fibrous layers comprising a woven or knitted network of high tenacity fibers impregnated with a second resin matrix, said high tenacity fibers comprising polyolefin fibers; and a third plurality of fibrous layers attached to said second plurality of fibrous layers, said third plurality of fibrous layers comprising a non-woven network of high tenacity fibers impregnated with a third resin matrix, said high tenacity fibers comprising polyolefin fibers.