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Hollow-wall-carton-corner-arrangement

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Hollow wall carton corner arrangement

Details

Inventors: Bell, Richard L.; Walter, Richard T.;
Assignee: Container Corporation of America (Chicago, IL)
Primary Examiner: Moorhead; Davis T.
Assistant Examiner:
Attorney, Agent or Firm: Carpenter & Ostis

A reinforced corner construction for a hollow wall, tray-type paperboard carton having, opposed pairs of hollow side walls, corner flaps extending from the ends of each side wall to the adjacent side wall, and reinforcing panels on the corner flaps.

DETAILED DESCRIPTION We claim: 1.
In a reinforced, interlocking, corner construction arrangement for a hollow wall carton formed from a unitary blank of foldable paperboard, the combination of: a.
a bottom wall; b.
opposed pairs of hollow first and second side walls upstanding from said bottom wall and joined to each other at the corners of said carton to form a tray open at the top; c.
each of said side walls being hollow and comprising: i.
an outer panel foldably connected at its lower edge to a related side edge of said bottom wall; ii.
a top panel foldably connected at its outer edge to the upper edge of said outer panel; iii.
an inner panel foldably connected at its upper edge to the inner edge of said top panel; iv.
a retaining flap foldably connected at its outer edge to the lower edge of said inner panel, and disposed in full-face engagement with said bottom wall; d.
a first corner flap foldably connected at one edge to an end of said first wall inner panel, and having a reinforcing panel foldably connected thereto along a side edge extending normal to said one edge thereof; e.
a second corner flap foldably connected at one edge to an end of said second wall outer panel, and having a reinforcing panel foldably connected thereto along a side edge extending normal to said one edge thereof; f.
said first corner flap being folded normal to said first wall inner panel and being secured in full-face engagement to the inner surface of said second side wall outer panel; g.
said first corner flap reinforcing panel being interposed between the inner and outer panels of said second side wall to provide added rigidity for said second side wall; h.
said second corner flap being folded normal to said second wall outer panel and being secured in full-face engagement to the inner surface of said first side wall outer panel; i.
said second corner flap reinforcing panel being interposed between the inner and outer panels of said first side wall to provide added rigidity for said first side wall.
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