Bottles and jars – Closures – Having warning means or means impeding closure removal
Patent
1977-06-29
1978-10-03
Hall, George T.
Bottles and jars
Closures
Having warning means or means impeding closure removal
B65D 5502, B65D 8556, A61J 100
Patent
active
041179455
ABSTRACT:
A child-resistant, safety closure for a container having a dispensing end including a threaded neck portion. The closure features an inner sidewall threadably attachable on the container neck portion and an outer sidewall having a flexible and resiliently distensible distal end portion with at least one interlocking member adapted to automatically interlockingly engage the dispensing end of the container when the closure is in either a fully closed or in at least one additional, partially removed position on the container neck portion. Removal of the closure requires manual compression of the outer sidewall at locations straddling the interlocking members, coupled with concurrent retrogressive movement of the closure. Ordinarily, such manual manipulation must be repeated at each interlocking position of the closure. Moreover, as a further safety factor, the interlocking members are inaccessibly and unobservably secluded within the interior confines of the closure when it is interlocked on the container.
Alternative embodiments of the invention feature the provision of means for providing a frictional, fluid-tight seal which serves to prevent leakage of the container's contents even though the closure is partially removed from its fully closed position, or which is operative to prevent leakage of the container's contents at and between both the fully closed and the succeeding partially removed interlocking locations of the closure on the container end.
REFERENCES:
patent: 3941268 (1976-03-01), Owens et al.
patent: 3949893 (1976-04-01), Uhlig
patent: 3989152 (1976-11-01), Julian
patent: 3993208 (1976-11-01), Ostrowsky
Click Myron E.
Dence Richard B.
Hall George T.
Owens--Illinois, Inc.
Wilson David H.
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