Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1987-05-06
1988-09-13
Marcus, Stephen
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
229120, 229150, 229174, 229177, 229178, 229918, 229DIG11, B65D 522
Patent
active
047703393
ABSTRACT:
A ventilated grape box and a one-piece blank for forming it. The blank is formed from corrugated paperboard and is cut and scored to permit it to be folded into a stackable grape box without the need for fasteners. The upper edges of both ends of the box are provided with upstanding stacking tabs which are adapted to fit in complementary recesses in the lower edges of an identical box stacked above it. Each of two upper closure panels is provided with tabs which frictionally engage certain end panels to thereby maintain the upper closure panels closed after the box is filled with grapes. Certain end forming panels are folded to define a triangular column at each inside corner of the box, to thereby increase stacking strength.
REFERENCES:
patent: 3343744 (1967-09-01), Morell et al.
patent: 3973723 (1976-08-01), Owens
patent: 4056223 (1977-11-01), Williams
patent: 4129247 (1978-12-01), McCall
Elkins Gary E.
International Paper Company
Marcus Stephen
Zielinski Walt Thomas
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