Octagonal bulk bin

Details Octagonal bulk bin Octagonal bulk bin

1985-02-26

1986-09-30

Moy, Joseph Man-Fu

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including a polygonal, nonrectangular wall

229157, B65D 510

Patent

active

046142983

ABSTRACT:
An octagonal container closure in which the bottom closure flaps are held in place while the structural integrity of the flaps is maintained. Locking apertures are placed in opposed side closure flaps. The apertures remove as little material as possible from the side closure flaps and maintain the rectangular shape of the flaps. The apertures are shaped and located to allow the corners of the opposed end closure flaps to protrude through the apertures and to lock behind the side closure flaps. The shape of the apertures provides a two-way lock on each corner of an end closure flap, holding it both in the length and width direction. This provides a firmer closure than has been previously achieved.

REFERENCES:
patent: 4119266 (1978-10-01), Dempster
patent: 4279377 (1981-07-01), Peeples
patent: 4279379 (1981-07-01), Lohrbach et al.
patent: 4386729 (1983-06-01), Schmidt

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