Removable resistant container cap and neck assembly

Details Removable resistant container cap and neck assembly Removable resistant container cap and neck assembly

1983-06-17

1984-07-17

Norton, Donald F.

Bottles and jars

Closures

Closure pivoted about receptacle opening

215254, 215256, 215320, 215321, B65D 4148

Patent

active

044601000

ABSTRACT:
A container having a threaded neck is provided with a removal resistant cap which can be applied to the container neck by rotational thrust. The cap has a depending skirt having an internally threaded lower section with the threads terminating in a bead intermediate the ends of the skirt. The neck has an upper threaded section with the threads terminating in a bead spaced below the top of the neck. When the threads of the cap are engaged with the threads of the neck and the cap is rotated relative to the neck, the skirt will circumferentially expand so that the skirt bead passes over the neck bead. At that point, the threads will no longer engage and the interlocked beads will inhibit removal of the cap. Means are provided to enhance removability of the cap from the neck by tearing away a portion of the skirt.

REFERENCES:
patent: 2741388 (1956-04-01), Rubin
patent: 3323671 (1967-06-01), Minarik et al.
patent: 3494496 (1970-02-01), Livingstone
patent: 4303167 (1981-12-01), Martinez

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