Patent ID: 6926262

Claim:
A barrier structure comprising a continuous piece of elongated metal tape, said metal tape comprising: an elongate body defining a longitudinally extending channel and an elongate flange extending transversely from each side of said channel; barb roots spaced along said tape and secured to said flanges; a pair of tapered barbs secured to a barb root, said pair of tapered barbs extending in opposing longitudinal directions, and each of said tapered barbs forming a barb point; a first region of said elongate body adjacent to the barb root; a second region of said elongate body adjacent to the first region distal from the adjacent barb root; a third region of said elongate body adjacent to the second region distal from said first region, the third region extending lengthwise from the second region and meeting a corresponding third region extending lengthwise away from another second region; wherein: a width of the flanges in the first region is greater than a width of the flanges in the second region, and wherein a width of the flanges in the third region is greater than the width of the flanges in the second region; and said channel does not receive a reinforcing wire.