Bottles and jars – Closures – Having warning means or means impeding closure removal
Patent
1978-08-04
1979-05-15
Hall, George T.
Bottles and jars
Closures
Having warning means or means impeding closure removal
215206, 215216, 215223, 215224, B65D 5502, B65D 8556, A61J 100
Patent
active
041543530
ABSTRACT:
An improved safety container for pills and the like is in the form of a jar with an elastically deformable cylindrical cap of the snap-on and -off type. Mating flanges are provided on the jar and the inside of the cap which, when engaged, captively hold the cap to the jar yet permit the cap to rotate. Special tapers are provided on the mating flanges which act cooperatively under the influence of the elastic restoring forces of the cap to force the top of the cap into tight sealing contact with the lip of the mouth of the jar. This seal is further improved by the provision of mating beveled features on the interior of the top of the cap and the lip of the jar.
A tab is provided on the cap to permit the user to apply the necessary force to deform the cap in order to remove it. A locking feature is provided by a keyway cut in this tab designed to engage and ride captively on a locking flange which encircles all but a small portion of the jar. Only in the unique orientation of the tab where an interruption in the locking flange is registered with the tab, is the tab free to move upward, levering off the cap. A safety mechanism is provided in the form of an elastically deformable safety catch affixed to the jar and designed to overhang the tab when it is in the unique orientation.
REFERENCES:
patent: 3902620 (1975-09-01), McIntosh
patent: 4043475 (1977-08-01), Wheeler
patent: 4087016 (1978-05-01), Towns et al.
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