Metal screw closures for packaging containers
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United States of America Patent
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-
Mar 2, 1993
Grant Date -
N/A
app pub date -
Apr 5, 1991
filing date -
Apr 6, 1990
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A screw closure is associated with a container mouth and is defined by a metal closure body having a closure panel and a peripheral skirt which extends to an inwardly and upwardly directed curl terminating in a free edge. An annular shoulder of the peripheral skirt cooperates with the curl to captively retain therebetween an upper portion of a plastic security ring joined to a lower portion by a line of weakening with the lower security ring portion being prevented from rotating relative to an associated container neck. The terminal end of the curl is seated in a recess of the security ring upper portion in deforming engagement therewith.
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