Expansion section for tamper-indicating ring of squeeze-off closure
AssigneeThe Continental Group, Inc.
InventorDonald H. Zipper
Life of this patent
Estimating the term…
Abstract
This disclosure relates to a tamper-indicating band which is utilized in conjunction with a closure for normally preventing the distortion of the closure as would be required to effect the removal of the closure. A tamper-indicating ring includes a continuous band which must be ruptured in order to remove the tamper-indicating ring. When the processing of the container assembly requires the introduction of heat, the tamper-indicating ring is heated and the band expands and then shrinks. Difficulties encountered with this first expansion and later shrinkage have been solved by forming the band in a plurality of sections connected together by expansion segments.
Claims12
A closure assembly comprising a closure member including a body having an end panel and a depending skirt and a sealing ring within said body for engaging a container sealing surface, and a tamper-indicating ring carried by said skirt and having a portion disposed radially inwardly of said skirt for normally preventing radial inward deflection of said skirt, said tamper-indicating ring being characterized in that it includes expansion means for accommodating expansion of said tamper-indicating ring during heating thereof.
A tamper indicating ring for use with a closure having a depending skirt intended to be spaced from an adjacent container wall, said tamper-indicating ring including a continuous band having at least one line of weakening for effecting rupture of said band, said band having radially inwardly projecting lug means for positioning between a container and a closure skirt, and means for interlocking said ring to a closure skirt, said tamper-indicating ring being characterized in that it includes expansion means for accommodating expansion of said tamper-indicating ring during heating thereof.
Dependencies are inferred from the claim text.