Sealing arrangement for closure caps having liners

Details Sealing arrangement for closure caps having liners Sealing arrangement for closure caps having liners

1998-08-03

2000-04-04

Shoap, Allan N.

Bottles and jars

Closures

Cap type

215 44, 215341, 215343, 215350, 215351, 215DIG1, B65D 5304

Patent

active

060449942

ABSTRACT:
A sealing arrangement is provided having a container neck having a sloped land surface. The sloping land surface is configured to prevent the liner from slipping across the land surface when the cap is applied to the container. The cap has depending downwardly from its inner surface an annular bead positioned relative to the land surface such that, when the cap is applied to the container, the bead extends down into the mouth of the container radially inwardly of the land surface. The land surface, together with the bead, stabilize and stretch the liner upon application of the cap, urging the liner to conform to the land surface. At least one sealing rib depends downwardly from the lower surface of the cap to provide additional sealing force between the liner and the land surface.

REFERENCES:
patent: 1139792 (1915-05-01), Mitchell
patent: 3409160 (1968-11-01), Scott
patent: 4640428 (1987-02-01), Chang
patent: 5667089 (1997-09-01), Moore

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