Bottles and jars – Closures – Frangible member or portion
Patent
1992-12-21
1994-11-01
Shoap, Allan N.
Bottles and jars
Closures
Frangible member or portion
B65D 4134
Patent
active
053601262
ABSTRACT:
A plastic closure has a tamper-evident band with a 2-tier bridge arrangement comprising upper and lower bridges that are staggered circumferentially of the band. The upper bridges are spaced along an upper line of weakness and connect the tamper-evident band to the side wall of the closure, while the lower bridges are spaced along a lower line of weakness and connect a lower portion of the tamper-evident band to an upper portion of the band. The lower portion has an internal locking bead for engaging an external locking shoulder on the neck of a container. When the closure is moved in a direction to remove it from the container, the upper portion of the band is deformed into a zig-zag shape. Eventually upper bridges, which are weaker than the lower bridges, break, so that at least a top part of the closure can be removed from the container.
REFERENCES:
patent: 3335889 (1967-08-01), Brumme
patent: 3904062 (1975-09-01), Grussen
patent: 4494664 (1985-01-01), Guala
patent: 4540100 (1985-09-01), Wilis
patent: 4557393 (1985-12-01), Boik
patent: 4573601 (1986-03-01), Berglund
patent: 4805792 (1989-02-01), Lecinski, Jr.
Snyder William J.
Walker Rocco D.
Cronin Stephen
Shoap Allan N.
Zapata Industries, Inc.
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