Bottles and jars – Closures – Having warning means or means impeding closure removal
Patent
1994-11-17
1995-08-29
Moy, Joseph Man-Fu
Bottles and jars
Closures
Having warning means or means impeding closure removal
215219, 215221, 215230, 215250, B65D 5502
Patent
active
054452830
ABSTRACT:
The present invention relates to a plastics screw cap for container closures which is child-proof, with an inner cap (1) with an internal thread (13) which can be screwed onto a neck or a connecting piece of a container for receiving a closure, and an outer cap (2) which is freely rotatable with respect to the inner cap (1) at least in the direction of opening, wherein between the inner and outer caps (1, 2) engaging elements (7, 8, 9, 10) are provided which can only be engaged in an interference fit when a not exclusively tangential force is applied in the direction of opening, in addition to the tangential force effecting the opening moment. In order to provide a closure, that is, a plastics screw cap with the features described in the introduction, which, regardless of the container contents used has a high degree of reliability of function and is easy to operate, it is proposed, according to the invention, that the bases (3, 4) of the inner cap (1) and outer cap (2) fit into one other by means of a cylindrical projection (5) which is arranged concentrically with respect to the axis of the top on one of the bases (3, 4) and a cylindrical recess (6) which is also arranged concentrically to the axis of the top on the other base (4, 3), wherein the recess (6) has a slightly larger diameter than the projection (5).
REFERENCES:
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patent: 4353474 (1982-10-01), Luker
patent: 5115928 (1992-05-01), Drummond, Jr.
patent: 5170900 (1992-12-01), Mangra
patent: 5246123 (1993-09-01), Kramer et al.
Jacob Berg GmbH & Co. KG
Man-Fu Moy Joseph
LandOfFree
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