Title: Expansion section for tamper-indicating ring of squeeze-off closure

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.

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Inventors: Zipper, Donald H. (Western Springs, IL, US)

Application Number: 050933
Filing Date: 1979-06-21
Publication_date: 1980-10-14
Assignee: The Continental Group, Inc. (New York, NY)
Primary Class(es): 215/253 215/262, 215/274, 215/321, 292/256.6
Other Classes:
US Patent Ref:

2817453	Dec, 1957	Stover	215/352.
3057503	Oct, 1962	Salzmann	215/253.
3489308	Jan, 1970	Podesta	215/346.
3603472	Sep, 1971	Lecinski	215/346.
3746199	Jul, 1973	Hart	215/346.
3820678	Jun, 1974	Zipper	215/253.
3951292	Apr, 1976	Amberg	215/246.

Other Refs:
Primary Examiner: Norton, Donald F.
Assistant Examiner:
Attorney: Brown; Charles E.