Tamper-indicating closures and packages

Claim 1

A tamper-indicating closure comprising a one-piece molded closure of plastic having a base wall and a peripheral skirt, said skirt having means thereon adapted to interengage securing means on a container, a tamper-indicating band on said closure having a first portion joined to the closure along a weakened frangible line and having an edge spaced from the weakened line, an integral second portion wall joined to the edge by an integral annular connecting portion on said band extending axially toward the base of the closure along the inner surface of said first portion of said band, said wall being joined to said band and spaced radially inwardly from said first portion, said wall having a free edge, said wall having circumferentially spaced flexible wall portions along said free edge extending radially inwardly, each said flexible wall portion comprising a pleat which extends radially inwardly from the remainder of the wall from a point intermediate the connecting portion and the free edge and defining an undulating free edge such that when the closure is applied to the container, the circumferentially spaced wall portions flex radially outwardly relative to the remainder of the wall over an annular bead on said container and then radially inwardly relative to the remainder of the wall beneath the bead on a container, and when the closure is removed, the upper edges of the circumferentially spaced wall portions engage the underside of said bead on a container and cause the band to severed along the weakened line.