Tamper indicating package and molded plastic closure therefor

Details Tamper indicating package and molded plastic closure therefor Tamper indicating package and molded plastic closure therefor

1987-03-27

1988-02-23

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215307, B65D 4134

Patent

active

047264829

ABSTRACT:
A package including a container with a threaded finish and a molded plastic closure that is sealingly applied to the finish. The closure has a skirt portion, and the skirt portion has one or more apertures in it, at a location or locations near the top of the closure. Adjacent each aperture in the skirt portion of the closure the closure has a flexible tab which is frangibly attached to the skirt portion and which extends inwardly and upwardly from the skirt portion to engage a radially projecting bead on the finish of the container, at a location above the thread on the finish of the container. Upon the first removal or attempted removal of the closure from the container, each flexible tab is broken away from the skirt portion of the closure by the flexible tab with the radially projecting bead on the closure finish, and this damage to the closure is visible through the aperture that the flexible tab is near to provide a visual indication of the possible tampering with the package or its contents. Further, when the package is used to contain a carbonated beverage or other pressurized product, each aperture in the skirt portion of the closure aids in the venting of the headspace of the container, to thereby inhibit the misseling of the closure during its removal.

REFERENCES:
patent: 3966071 (1976-06-01), Northup
patent: 4007851 (1977-02-01), Walker
patent: 4401227 (1983-08-01), Pehr
patent: 4427126 (1984-01-01), Ostrowsky
patent: 4572388 (1986-02-01), Luker et al.

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