Composite, tamper evident, vacuum indicating closure and contain

Details Composite, tamper evident, vacuum indicating closure and contain Composite, tamper evident, vacuum indicating closure and contain

1988-02-25

1989-02-28

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

215271, 215276, B65D 4134

Patent

active

048077704

ABSTRACT:
A tamper evident, vacuum indicating closure for a container for the packaging of a vacuum-packed product, the closure being of two-piece construction and having a metal lid portion which is retained in sealing engagement with the rim of a container by a plastic ring portion. The metal lid portion has a vacuum indicating button centered therein. The ring portion of the closure has a series of spaced apart flanges projecting radially inwardly at the top thereof to urge the top of a curl at the outside of the lid against the rim of the container, the ring portion of the container further having a series of spaced apart flexible tabs to engage the underside of the curl of the lid so that the lid portion and the ring portion can be conveniently handled in unison, and to positively remove the lid from the finish of the container at the time of the removal of the closure from the container. The ring portion of the closure also has an annular skirt, and the bottom of the annular skirt of the ring portion of the closure has a tamper evident band attached thereto by frangible bridges, and the tamper evident band has a series of spaced apart flexible tabs which extend inwardly and upwardly therefrom to engage an annular bead on the finish of the container.

REFERENCES:
patent: 4093094 (1978-06-01), Smalley et al.
patent: 4694970 (1987-09-01), Hayes

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