Self locking paperboard lid
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 22, 2000
Grant Date -
N/A
app pub date -
Dec 31, 1999
filing date -
Dec 31, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A releasable locking lid formed from a planar blank of paperboard material which is adapted to fit a locking style box and which can be formed using automated paperboard folding equipment. Fold lines are provided in selected locations in the paperboard blank to define a top wall and two pair of opposing side walls surrounding the top wall. Each of one pair of side walls are configured to form a double ply in the final form and include a pair of cut-out portions which form recesses on the inner side of the double ply side wall which mate with corresponding flaps provided on the box to releasably lock the lid on the box. The double ply side walls also include a flap portion on each end adapted to mate with a diagonally folded flap on the ends of the other pair of opposing side walls. These flaps are adhesively bound together to connect the side walls to one another. The double ply side walls are also adhesively bound in the double ply configuration during the machine folding process to form a finished end product.
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Family
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Cited Art Landscape
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