| 摘要 |
A tamper-indicating closure and package comprising a one-piece molded closure of plastic which threads onto a container such that when the closure is unthreaded, a tamper-indicating band becomes separated from the lower end of the closure skirt. The tamper-indicating band is joined to the closure along the weakened frangible line. Circumferentially extending relatively rigid locking members are supported on the inner surface of the closure by generally vertically extending flexible membranes such that when the closure is threaded onto the container, the locking members move radially outwardly as they engage an annular bead on the finish of the container causing the membranes to flex over the bead and bringing the locking members into engagement with the underside of the bead. When the closure is unthreaded from the container, the engagement of the locking members with the underside of the head causes the membranes to be severed. In one form of closure, the membranes are inclined circumferentially opposite to the direction of rotation of the closure during threading to facilitate the flexing of the membranes.
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