Crown Packaging Technology, Inc.

Andrew John Wallis

Graham Martin Gossedge

Alastair Wilson

This invention relates to an improved closure in the form of an annular component () closed by a peelable lidding material (). More particularly, it relates to a closure which, in use on a container, is better able to respond differential pressure changes whilst also providing peelability.

Closure

A peelable lid structure, particularly for use in the closing of food cans, has a tab which is folded over the center panel and secured in the folded position for processing of can contents and/or handling operations. As the tab is secured, an inexpensive laminate structure which requires little or no aluminum content can be used. Methods of forming the peelable lid structure include exposing a layer of heat sealable material and/or an adhesive layer so that the tab () can be folded over and adhered to this layer, for example, by heat sealing.

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Wantage, United Kingdom

Andrew John Wallis