Patent ID: 6769575
Filing Date: 2004-08-03
Classification: B65D

Abstract:
A tamper indicating closure comprising a top portion, an annular depending skirt extending therefrom, a first tamper indicating ring connected to said depending skirt by at least one circumferentially positioned first frangible element, said first tamper indicating ring including at least one arcuate projection extending around at least a portion of said first tamper indicating ring arranged for registration with an annular locking flange on a container neck portion on which said closure is positioned, said depending skirt having at least one internal thread for engaging at least one external thread on the neck portion of said container, wherein the improvement comprises:at least one said arcuate projection comprising a locking member extending radially inward from said first tamper indicating ring with a surface at an angle to a plane normal with said first tamper indicating ring, said locking member comprising a plurality of gussets extending upwardly from and in a direction substantially perpendicular to a sealing surface of said locking member to assist in dislodging said first tamper indicating ring from the remainder of said closure.