Patent ID: 6212840
Filing Date: 2001-04-10
Classification: E04H,E06B

Abstract:
A retrofit method for protecting contents of a structure having walls and window frames in said walls in the event of a blast outside the structure, the method comprising the steps of:(a) providing a flexible and stretchable woven sheet including strands of ballistic thread;(b) substantially contacting and bonding a first portion of said flexible and stretchable woven sheet via a flexible adhesive to an inward-facing surface of at least one wall of the structure; and(c) attaching a second portion of said flexible and stretchable woven sheet to at least one window frame in said at least one wall;such that, under impact of said blast, said flexible and stretchable woven sheet and said flexible adhesive absorb impact by stretching, thereby reducing disintegration of said at least one wall and securing said at least one window frame in said wall upon said blast, preventing fragments from said at least one wall and preventing said at least one window frame from being thrown into an interior of the structure by said blast.