Reclosable fasteners for plastics bags and other containers
AssigneeIllinois Tool Works Inc.
InventorMartin John Charles Offa-Jones
Life of this patent
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Abstract
A zipper (10) for application to a film or web using cross-web techniques comprises two interengageable elements (12, 14), each having engageable hooks (20, 22), and each having an upstanding post (24) at the margin of the fastener which is engageable with a heel (28) at the opposing margin of the other element, with the respective posts (24) and heels (28) being complementarily angled (26) at their respective contact surfaces. This enables the closure more easily to resist pressure without distortion.
Claims7
A reclosable fastener for plastics bags and other containers, comprising two elements, each element comprising at least one portion releasably engageable with a portion of the other element, and each element comprising an upstanding post at the margin of the fastener which is engageable with a heel of the other element at the opposing margin of said other element, wherein the respective posts and heels of the two elements are complementarily angled at their respective contact surfaces.
A reclosable fastener as claimed in any preceding claim, in which a single flange is provided on one only of the two interengageable elements of the fastener, for attachment to a film or web.
Dependencies are inferred from the claim text.