Bottles and jars – Closures – Frangible member or portion
Patent
1998-01-20
1998-11-03
Cronin, Stephen K.
Bottles and jars
Closures
Frangible member or portion
215 44, B65D 4134
Patent
active
058296123
ABSTRACT:
A threaded type tamper-indicating closure in which the tamper-indicating ring is separated from the cap element of the closure as the closure is opened, in which the tabs which contact an undersurface of a bead on the outer surface of an engaged container finish are prevented from flexing radially inwardly beyond a limited degree so as to assure that the tabs will function immediately as the closure commences unthreading. In the disclosed embodiment, this is accomplished by positioning the pivot axis of the tabs in substantially a common vertical plane therewith, so that the tabs pivot only slightly radially outwardly as they come into contact with the bead. The tamper-indicating ring includes an upper wall member of relatively reduced thickness to enable both bending and flexing radially outwardly during installation to enable the relatively rigid tabs to clear a radially outwardly extending bead on the container neck or finish. The tabs extend radially inwardly from an upper edge of a relatively thicker lower wall member of the tamper-indicating ring, and do not substantially bend or flex relative to the lower wall member during either installation or removal.
REFERENCES:
patent: 4402418 (1983-09-01), Ostrowsky
patent: 4949861 (1990-08-01), Cochran
patent: 5107998 (1992-04-01), Zumbuhl
patent: 5524782 (1996-06-01), Salemi
patent: 5611446 (1997-03-01), Ingram et al.
patent: 5755347 (1998-05-01), Ingram
Cronin Stephen K.
Temko Charles E.
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