Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1999-12-31
2000-08-22
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
22911707, 22912529, B65D 568
Patent
active
061058556
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.
REFERENCES:
patent: 2711282 (1955-06-01), D'Esposito
patent: 2745589 (1956-05-01), Daly et al.
patent: 2990098 (1961-06-01), Kramer
patent: 3512699 (1970-05-01), Wilson
patent: 4053100 (1977-10-01), Baptist
patent: 4305355 (1981-12-01), Sykora
patent: 5148973 (1992-09-01), Zimmermann
Kackstetter Max K.
Olds David J.
Elkins Gary E.
Kremblas, Jr. Francis T.
Willamette Industries
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