Resealable Flexible Container Lid with Pivoting Portions

Abstract

A closure is disclosed for a container. The container comprises a base and a peripheral wall. A rim forms an upper margin of the wall and surrounds an opening of the container. An external protrusion is formed integrally with and surrounds the rim. A portion of the closure is adapted to overlie the opening of the container. A skirt is formed integrally with the closure portion and is arranged to surround the rim when the closure is mounted to the container. The skirt comprises a first portion that is positionable adjacent to and to surround an external upper end of the rim. The skirt further comprises a second portion that is connected to the first portion at a connection and that extends downwardly therefrom to surround the rim below its upper end. The second portion also comprises an integrally formed first ledge located therewithin that is positionable to locate in interlocking engagement with the external protrusion. The connection has a width W sufficiently greater than its thickness so as to facilitate pivoting of the second portion with respect to the first portion to enable disengagement of the first ledge from the external protrusion. The second portion can also comprise a continuous and unbroken profile moving around the closure.

Description

TECHNICAL FIELD[0001]An improved closure for a container is disclosed wherein at least the closure (e.g. in the form of a lid) is moulded from plastic. More particularly, the closure is adapted for reuse, but may also be adapted to indicate tampering once initially removed.BACKGROUND ART[0002]Plastic and metal containers such as pails are used for holding chemicals including paints, solvents, oils, powders etc. Both transport regulations and market expectations require that the closure does not become detached from the container as a result of inadvertent dropping of the container and / or from shifting loads during handling, transport etc. At the same time, it is desirable that the closure be readily removable when access to container contents is required.[0003]GB 2091706 discloses a container lid provided with a lid flange that merges into a releasing flange. The releasing flange can assume a position in which an inwardly extending rib of the flange can engage a sealing edge on a co...

AI Technical Summary

Benefits of technology

[0027]The container flange and / or the second portion may be provided with one or more discrete recesses adapted for receiving finger(s) of a user therein to facilitate finger insertion under and lifting of the second portion, thus facilitating initiation of pivoting of the second portion with respect to the first portion.

[0028]For increased tamper resistance and increased secure mounting, the closure may further comprise a tear strip that is frangibly connected to a distal end of the second portion. In other words, prior to pivoting the second portion about the first portion, it must first be detached from the tear strip.

Problems solved by technology

However, this arrangement results in a closure that performs very poorly in relation to drop and stack tests, as specified in international transport regulations.

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