Push and lock child-resistant closure

Bottles and jars – Closures – Having warning means or means impeding closure removal

Patent

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Details

215219, B65D 5502

Patent

active

047294876

ABSTRACT:
A closure assembly is rotationally free in a child-resistant mode and is provided with a push-button to convert the closure to an operational mode. The closure assembly employs an inner cap, an outer cap, and a push-button selector assembled in a permanent nested configuration. A top portion of the selector is moveably received through an outer cap opening while lugs depending from the bottom surface of the outer cap are received by selector bottom portion slots to form a rotationally locked engagement, yieldingly radially flexible selector locking arms include a lip portion engaged within cam detents formed within the lugs and hold the selector in an axial outward position wherein rotating the outer cap transmits no rotational torque to the inner cap, depressing the selector causes the lips to track the cam detents and the lips snap outward under the lugs when the selector is fully depressed wherein selector rotational driving means are in an axial engageable relationship with inner cap rotational driving means. Subsequently depressing the outer cap causes the lugs to force the lips inward; when the lugs contact the top of the inner cap the lips are again engaged within the cam detents wherein the cam detents translate the radially outward biasing force of the locking arms to axial outward biasing force and cause the selector to return to the first position.

REFERENCES:
patent: 4011960 (1977-03-01), Mauvernay et al.
patent: 4103797 (1978-08-01), Morris
patent: 4285437 (1981-08-01), Morris
patent: 4346809 (1982-08-01), Kusz
patent: 4393977 (1983-07-01), Willingham
patent: 4394916 (1983-07-01), Smalley
patent: 4433789 (1984-02-01), Gibilisco
patent: 4690292 (1987-09-01), Henning

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