Bottles and jars – Closures – Having warning means or means impeding closure removal
Patent
1975-01-23
1976-08-31
Hall, George T.
Bottles and jars
Closures
Having warning means or means impeding closure removal
B65D 5502, B65D 8556, A61J 100
Patent
active
039775542
ABSTRACT:
There is disclosed a child-proof closure device for a container such as a bottle having a threaded neck portion. This closure device comprises a closure cap which has on the outside of its side wall a row of teeth and a drive cap which has on the inside of its drive wall a row of teeth and is fitted upon the closure cap. The two caps are dimensioned relative to each other so that the drive cap in a lowered or inactive position relative to the closure cap can be rotated and is axially displaceable relative to the screw cap so that it can be lifted into a raised or active position. In the latter position, the two rows of teeth are in rotation transmitting engagement whereby turning of the drive cap causes turning of the closure cap so as to screw the same off or on. The drive cap will drop into its inactive position by the force of gravity unless held in the active position. Hence, a person who wants to screw off or on the screw cap must perform several coordinated movements, namely, lift the drive cap, hold the same in the lifted position and turn the drive cap. Such coordinated and simultaneous operations constitute an efficient safety factor against opening of the container by a young child. Yet, the performance of these coordinated oeprations requires virtually no physical strength or special mechanical skill.
REFERENCES:
patent: 3669294 (1972-06-01), Petronelli et al.
patent: 3809274 (1974-05-01), Scuderi
patent: 3870182 (1975-03-01), Georgi
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