Patent ID: 6226801
Filing Date: 2001-05-08
Classification: A42B

Abstract:
An inflatable liner for use in a protective helmet comprisingan inflatable seamless body defining a multiplicity of internally disposed cells with each cell being separated from an adjacent cell by a constriction having a smaller internal cross-sectional area than said cells, said cells and constrictions forming a continuous passageway for the passage of air throughout said body;said body further defininga centrally disposed crown portion in the form, of a ring of said cells and constrictions that is adapted to be positioned against and protect the top portion of the wearer's skull,a rear group of said cells and constrictions extending outward from said ring and adapted to be positioned against and protect the lower portion of the wearer's skull,a pair of side groups of said cells and constrictions extending outward from opposite sides of said ring and adapted to be positioned against and protect the sides of the wearer's skull, anda front group of said cells and constrictions extending out from said ring and adapted to be positioned against and protect the top front portion of the wearer's skull, said body having a first side that is substantially flat thereby facilitating the positioning of said first side against the internal surface structure of the helmet; anda valve connected to said body for permitting said body to be inflated and deflated with air whereby said body when inflated to a desired pressure is adapted to be inserted into a helmet with the flat surface juxtaposed against the inside surface structure of the helmet.