US 4,398,661 AGranted

Internally divided carton

AssigneeChampion International Corporation

InventorJoseph F. Schillinger

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Abstract

The interior of the paperboard carton is subdivided into two equal volumes by means of an internal divider panel which is formed as an extension of one end of the blank which is used to form the carton. The carton has front and back walls, side walls, and top and bottom closure flaps foldably connected to the front, back and side walls. The carton is formed from a one piece blank having opposite ends thereof overlapping each other and glued together at the center of the back wall, the divider panel is formed as an extension of one of the overlapping ends of the blank and is set back on that end of the blank so that the divider panel has basal marginal legs between which there extends a glue tab which is glued to the other end of the blank to form part of the glue seam joining the ends of the blank together. A paperboard material savings is realized by setting the divider panel back to form the marginal legs. The top closure of the carton is medially rupturable so as to be divisable into two top closures independently operable.

Claims2

Dependent claims

A collapsible and erectable carton having a front wall, a back wall, and a pair of side walls interconnecting the front and back walls, said carton being in tubular form and formed from a single blank whose opposite edges are overlapped to form a medial seam traversing one of said front and back walls from top to bottom thereof;

said one of said front and back walls comprising two panels joined at said medial seam with the outermost one of said two panels terminating at the mid line of said one of said front and back walls;
the innermost one of said two panels extending beyond said mid line of said one of said front and back walls to form a glue tab secured to the inner surface of said outermost one of said two panels;
a divider panel extending from an end of said innermost one of said two panels and foldably connected to said innermost one of said two panels along a fold line disposed along said mid line of said one of said front and back panels, said divider panel having a glue flap foldably connected to a terminal end of said divider panel with said glue flap being adhesively secured to a medial portion of the inner surface of the other of said front and back walls;
and
a portion of said glue tab being formed by material cut from said divider panel and extending beyond said fold line of said divider panel and adhesively secured to said inner surface of said outermost one of said two panels.

2 more elements

Dependencies are inferred from the claim text.