Patent ID: 7963075

Claim:
An inflatable barrier system for closing an opening to frontal attacks, the opening being bounded on at least two opposing sides by substantially flat bounding edges, the bounding edges providing accessible opposing sides adjacent to the opening, the inflatable barrier system comprising: a front side envelope of rectangular front elevation, a horizontal plane cross-sectional profile of the front side envelope having an elongated central region terminated at each end by a pair of opposing lobes, each pair of opposing lobes defining a vertically oriented edge gripping channel into which a bounding edge can be inserted, the gripping channel being bounded on opposing sides by the opposing lobes, the envelope being inflatable with gas and fillable with a hardening foam, said inflation causing the lobes of each pair of opposing lobes to press toward each other so as to grip the bounding edge inserted within the channel, said gripping being sufficient to maintain the front side envelope in attachment to the opening during predetermined levels of push, cut, puncture, flame, chemical, and ballistic attack; a source of gas for inflating the envelope; an inflatable back side array of tubular gas beams configured with self sealant and combined with the front side envelope, the backside array being connected to the source of gas for inflating the array; and a source of hardening foam for filling and hardening the envelope, a front face of the envelope being configured for resistance to the predetermined levels of push, cut, puncture, flame, chemical, and ballistic attack.