Bottles and jars – Closures – Frangible member or portion
Patent
1982-06-01
1984-07-24
Hall, George T.
Bottles and jars
Closures
Frangible member or portion
215258, B65D 4134
Patent
active
044613903
ABSTRACT:
Tamper-evident closures which are useful in conjunction with various bottles and containers are disclosed. The closures are intended to be used in connection with containers having threaded necks above an annular collar, and they comprise one-piece closures including a horizontal end wall, a cylindrical side wall including an internally threaded upper portion, a depending lower skirt portion which includes an inwardly projecting bead adapted to engage the annular collar on the container, and an intermediate side wall portion therebetween. The intermediate side wall portion of the closure includes an area of weakness which is designated to fracture when the closure is unthreaded from the container, thereby leaving the lower skirt portion engaged to the annular collar on the container after the end wall and internally threaded upper portion of the closure have been removed. The area of weakness includes a bridge portion which is sufficiently thin and flexible that it can collapse when the closure is being applied, whereby the faces of the intermediate side wall on either side of the bridge portion come into abutment with each other, and the bridge portions therefore do not prematurely fracture. The closure also includes stabilizers to prevent these abutting wall portions from moving relative to each other while the brige portions have collapsed.
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General Kap (P.R.) Corporation
Hall George T.
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