Importance

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Abstract

A closure or plastic lid having a substantially circular configuration as well as an outer annular periphery is provided with concentrically located projection ribs on one side thereof as well as an outer skirt portion and an inner skirt portion extending axially in an opposite direction from a periphery of the plastic lid or closure in a location radially outwardly of the rib projections which assure a broad area of contact sealing engagement with respect to an arcuately curved bead portion of a container wall contacted both in an axial region and a radially outer region as to a foil membrane or liner having at least one, preferably three radially outwardly projecting tabs which are folded into a slot or recess concentrically between the outer skirt portion and inner skirt portion of the cover or lid.

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First Claim