Automatically-operating bottom structure

Details Automatically-operating bottom structure Automatically-operating bottom structure

1988-09-29

1989-08-15

Elkins, Gary

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including a polygonal, nonrectangular wall

229 41C, 229117, B65D 536

Patent

active

048567051

ABSTRACT:
An automatically-operated bottom structure for an eight-sided container includes a pair of bottom flaps (66,69) pivotally connected to pair of opposed first panels (13,18), and band pivotally connected to an opposed pair of second panels (11,15) arranged substantially perpendicular to the first panels. The band and bottom flaps are folded within the container when the container is in a folded-flat condition, but are adapted to automatically form an operative bottom structure when the folded-flat container is moved to a fully-expanded condition.

REFERENCES:
patent: 3565325 (1971-02-01), Pugsley
patent: 3642192 (1972-02-01), Wilcox, Jr. et al.
patent: 4199098 (1980-04-01), Lopez
patent: 4260100 (1981-04-01), Hoffman
patent: 4289267 (1981-09-01), Mayea
patent: 4549690 (1985-10-01), Rosenburg
"Corrugated Box Style Reference", Post Machinery Co., Inc., Post Road, Portsmouth, N.H. 03801 (undated).

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