Child proof container and safety closure

Details Child proof container and safety closure Child proof container and safety closure

1990-03-12

1991-07-02

Marcus, Stephen

Bottles and jars

Closures

Having warning means or means impeding closure removal

215219, B65D 5000

Patent

active

050279548

ABSTRACT:
A child proof container and safety closure comprising a container, a cap for closing the open end of the container storing a hazardous product and a safety closure placed over the cap and threaded to the container. An extending tab on the top of the cap, extending through a hole in the center of the top of the closure, is manually held stationary during removal of the closure. An extending neck portion of the container and a peripheral wall of the cap, positioned over the extending neck portion, both have an offset axis displaced about the same distance from a central axis of the mating threads on the closure and the container. The offset axes of the container and the cap are positioned in alignment to permit closure removal when an alignment lug, on the outside of the extending neck portion of the container, is in contact with a shoulder of an annular slot on the inside of the peripheral wall of the cap. Serrations on the outside serrated surface of the cap and the inside serrated surface of the closure, are concentric with the threads on the closure and the container when the offset axes are in alignment. The serrations grip lock together when the offset axes go out of alignment, which occurs when the closure removal is attempted by holding the container in one hand and trying to remove the closure with the other hand. In order for a person to remove the safety closure, a proper procedure of holding the extending tab stationary to maintain proper positioning of the alignment lug in the annular slot, will allow unthreading and removal of the closure.

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patent: 4337869 (1982-07-01), Guinle
patent: 4690292 (1987-09-01), Henning

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