Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1987-08-28
1988-09-20
Marcus, Stephen
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
229183, 229900, B65D 502
Patent
active
047719397
ABSTRACT:
A center special slotted container is shown which is manufactured from sheet of corrugated paper material. The blank is formed such that top and bottom flaps provide parallel edges in knock-down manufactured condition when the manufacturer's glue joint is made up. Before the glue joint is firmly set, this knock-down carton is readily processed in a squaring device of a folder-gluer (a Flexo folder-gluer is an example) to prove a quality manufactured carton, and overcome out-of-square defects.
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Elkins Gary E.
Marcus Stephen
Nekoosa Packaging Corporation
Nelson John R.
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