Safety closure cap

Details Safety closure cap Safety closure cap

1977-10-31

1979-02-13

Hall, George T.

Bottles and jars

Closures

Having warning means or means impeding closure removal

215222, B65D 8556

Patent

active

041391128

ABSTRACT:
A single piece threaded safety closure for sealing the open end of a container. At least three enlarged members are equi-angularly spaced about the closure thread and form locking shoulders adapted to inter-engage corresponding shoulders defined on the thread of the container to lock the threads together and prevent removal of the closure except by special manipulation. A resilient liner is compressed when the closure is drawn down on the container and the compressed resilient liner urges the cap upwadly and maintains the shoulders in locked engagement.

REFERENCES:
patent: 2776066 (1957-01-01), Thornton
patent: 4032028 (1977-06-01), Reiss

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