Certipak Corporation

John K Lever

Peter C Collura

Richard L Humphries

Angelo N DiVecchio

A thread and punch lock for article carriers includes a first closure panel with a plurality of spaced tongues along its terminal end. A locking tab is provided in longitudinal line with each tongue and adjacent thereto. The tab extends in opposing direction to the tongue; the tab and tongue together forming a locking unit. The second closure panel includes two substantially parallel, transversely elongated slits for receiving each locking unit when the closure panels are in proper overlapping relation. Disposed between these slits is the closure panel material forming a protector strap. The closure panels are locked together by inserting the tongue through the slit furthest from the edge of the second closure panel. The tab is then punched in the slit nearest the edge of the second closure panel so as to overlie the second closure panel and create edge to edge engagement. The protector strap overlies the tab along the interior of the carrier to hold the tab in locked engagement and provide extra strength.

Combined lock structure for article carrier

An article wrapper for an article, or plurality of articles in at least one row, is formed from an elongated blank having a top panel, a pair of side panels connected to the top panel along fold lines, and a pair of bottom panels with each of the bottom panels connected to the adjacent side panels at two score lines. Compression tabs are positioned between the bottom score lines to allow tightening of the wrapper by squeeze guides. The bottom panels are arranged in overlapping relation and secured to each other by an adhesive, for example, after tightening the wrapper. The uppermost bottom score line adjacent each of the side panels enables a right angle corner to be formed at the bottom of each of the side panels so that each of the side panels presents an uninterrupted surface. The tabs are tucked under the bottom so as to be hidden from view.

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Redwood City, CA, United States of America

John K Lever