Patent ID: 6929843

Claim:
A flexible web barrier having generally parallel edges, having substantially greater length than width, and capable of being rolled longitudinally, wherein: (a) the web is cut longitudinally to form slits at intervals, the slits defining linear members comprising at least a top strand and a bottom strand and a plurality of cross members; and, (b) displacing the bottom strand longitudinally relative to the top strand deploys the cross members so as to increase the width of the barrier, leaving regular voids and further wherein said flexible web barrier has top and bottom longitudinal edges, and before deployment of said cross members, a plurality of said cut slits are adjacent each other in the longitudinal direction, each of said adjacent slits being nonlinear and having top and bottom portions, wherein said top portion of each slit of said plurality of slits overlies said bottom portion of an adjacent slit of said plurality of slits, wherein said overlying top and bottom portions of adjacent slits define said plurality of cross members.