Tamper indicating package

Details Tamper indicating package Tamper indicating package

1982-04-09

1984-02-21

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

B65D 4134

Patent

active

044324618

ABSTRACT:
A tamperproof package comprising a container having a neck with external threads formed thereon and a plastic closure comprising a top panel and an integral depending annular skirt having integral internal threads formed thereon complementary to the threads on the neck of the container. The container has an annular locking bead positioned axially below the threads. The skirt has a pilfer ring at the lower end thereof connected to the upper portion of the skirt by a plurality of circumferentially spaced integral bridge portions that are located below the threads when the closure is on the container. The ring has a radially inwardly extending annular rib engaging beneath the locking bead of the container when the closure is on the container. One of the bridge portions has a greater cross section than the remainder of the bridge portions such that when the closure is applied to the container, the rib on the pilfer ring snaps over and engages below the locking bead on the container, and when the closure is rotated to remove the closure from the container, the bridge portions are broken except for the bridge portion having the greater cross section such that the pilfer ring remains connected to the closure.

REFERENCES:
patent: 4196818 (1980-04-01), Brownbill
patent: 4346811 (1982-08-01), Hilaire

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