Patent ID: 8196226

Claim:
A protective helmet that can be worn by a wearer having a head with a crown or top and sides extending down to said wearer's pinnas, comprising: a plurality of layers that conform to a wearer's head, said layers extending around said wearer's head from said top or crown of said wearer's head to a point above said wearer's pinnas on the sides of said wearer's head, a first of said layers being made of fabric and designed to rest on said wearer's head, a second of said layers being made of a hard material and resting on said first layer, a third of said layers being made of a hard material and movably resting on said second layer, a fourth of said layers being made of a fibrous material and resting on said third layer, a fifth of said layers being made of a friable or frangible material which extends through at least part of said fibrous material of said fourth layer and to a predetermined height above said fibrous material of said fourth layer, said fifth layer further being scored with a plurality of lines, and a sixth of said layers being made of a resinous material which covers said fifth layer, thereby covering all previous layers, whereby when said wearer wears said helmet and said wearer's head receives a blow, said hard materials in said second and said third layers can reduce penetration of objects through said helmet, and said fibrous and said friable or frangible materials can break, thereby distributing and absorbing the energy of said blow and reducing the possibility that the wearer will experience mild traumatic brain injury.