Envelopes – wrappers – and paperboard boxes – Paperboard box – A sidewall includes a folded lateral extension of an...
Patent
1993-03-22
1994-03-15
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
A sidewall includes a folded lateral extension of an...
229149, 229918, 229919, B65D 550
Patent
active
052940446
ABSTRACT:
A fiberboard box formed from a blank (20), which includes side panels (24 and 28), also top and bottom flaps (40, 42, 44 and 46), with a pair of outer end panels (26 and 30). Mating inner overlapped end panels (48 and 50) produce a double fiberboard thickness on each end. Each corner contains a doubled vertical reinforcement (64) at an equal bisecting angle integrally formed from each outer end panel and adjacent side panel. A diagonal corner reinforcement (68) is formed from each overlap end panel and is angularly bent to span between the end and side panels and is also contiguous with the doubled vertical reinforcement. The diagonal and doubled reinforcement combination in each corner is attached together with glue where they touch each other, creating a rigid weight bearing corner permitting other like boxes to be stacked on top. Optionally, a number of stacking tabs (52) are formed in the end panels with mating recesses (54) maintaining alignment when the completed boxes are stacked.
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Anderson Gordon K.
Elkins Gary E.
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