Safety closure means

Details Safety closure means Safety closure means

1975-01-14

1976-11-23

Hall, George T.

Bottles and jars

Closures

Having warning means or means impeding closure removal

215320, B65D 5502

Patent

active

039932087

ABSTRACT:
Safety closure means comprising a container and a closure cap therefor, in which the container has a neck and a shoulder, which shoulder is formed with a pair of diametrically positioned locking lugs integrally formed therewith. The cap is formed of a thermoplastic material having a top end wall and a depending annular inner wall and a depending outer annular skirt spaced from the inner wall, with the inner wall of the cap having threaded means for engaging the neck of the container to secure the cap to the container in a closed position. The outer skirt of the cap has a pair of diametrically positioned radially extending locking lugs adjacent the lower end thereof integrally formed with said skirt, the cap locking lugs being adapted when the cap is rotated to cap closing position to pass inwardly of the container locking lugs and to be compressed radially inward during said passage, and as the cap lugs move past the container locking lugs the cap lugs will be released from their compressed state so that they extend outwardly beyond the engaging edges of the container locking lugs to lock therewith and prevent counter-rotation or unscrewing of the cap. The outer skirt of the cap is adapted to be manually engaged and pressed radially inward adjacent the cap locking lugs to permit the cap lugs to clear the engaging edges of the container lugs and ride inwardly of the inside surface of the container lugs when the cap is rotated in a counter-rotation to permit removal of the cap from the container neck.

REFERENCES:
patent: 3854622 (1974-12-01), McKirnan
patent: 3877597 (1975-04-01), Montgomery

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