Resealable plastic snap-fit closure with anti-tamper function

Details Resealable plastic snap-fit closure with anti-tamper function Resealable plastic snap-fit closure with anti-tamper function

1996-02-16

1998-04-07

Moy, Joseph M.

Bottles and jars

Closures

Frangible member or portion

215254, 215256, B65D 5502

Patent

active

057354197

ABSTRACT:
A plastic closure includes an annular ring durably attached to the container, and a sealing assembly installed in the ring to seal the mouth. The sealing assembly includes a plug having a sealing lip on its lower face and a release lever connected to the plug by a flexible linkage. The tab on the release lever can be lifted to pry the sealing assembly out of the opening. The lever comprises more than one hook protruding downwardly, connected to the outer edge of the lever by frangible bridges or by a frangible line. The hook is engageable with retaining elements attached to the attachment ring or to the container. The frangible bridges or the frangible line are constructed to break during first opening of the closure, to provide an indication that tampering has occurred.

REFERENCES:
patent: 4371089 (1983-02-01), Barendregt
patent: 4478343 (1984-10-01), Ostrowsky
patent: 4546892 (1985-10-01), Couput
patent: 4602718 (1986-07-01), Dutt
patent: 4782964 (1988-11-01), Poore et al.
patent: 5108029 (1992-04-01), Abrams et al.

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