Tamper indicating package

Details Tamper indicating package Tamper indicating package

1984-03-15

1985-10-29

Pollard, Steven M.

Bottles and jars

Closures

Frangible member or portion

215253, 215258, B65D 728

Patent

active

045496676

ABSTRACT:
A tamper indicating 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. The skirt has 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, and the skirt has a ring at the lower end thereof connected to the upper portion of the skirt by a plurality of circumferentially spaced integral bridge portions 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. The skirt has an annular groove formed therein in the area of the bridge portions, the groove being formed after molding by deforming an annular portion of the skirt thereby displacing material in the annular area axially and stressing the material in the annular area.

REFERENCES:
patent: 3673761 (1972-07-01), Leitz
patent: 3927784 (1975-12-01), Cochrane
patent: 4461390 (1984-07-01), Csaszar

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