End wall construction for a carton

Claim 2

An end wall construction for a paperboard carton having front, bottom and rear receptacle panels, cover and cover closure panels hingedly connected in sequence, comprising front and rear inner end wall panels hingedly connected to said front and rear receptacle panels, respectively, and an outer end wall panel hingedly connected to said bottom receptacle panel and lying in superposed and adhered relationship to said inner end wall panels, the side edges of said front and rear inner end wall panels lying adjacent to the hinge score line joining said outer end wall panel to said bottom receptacle panel having foreshortened extended portions adjacent their hinge connections to the respective receptacle wall panels, the remainder of said side edges being recessed with respect to said extended portions, and a continuous anti-seepage barrier bridging the lap space between said inner and outer end wall panels and extending as a narrow band from the hinge score connecting said outer end panel with said bottom receptacle panel along a line parallel with and adjacent to a side edge of said outer end panel to terminate adjacent the free edge of said outer end panel remote from said hinge score line, said barrier comprising (1) an embossment formed in one of said inner and outer end wall panels extending from said hinge score line a distance slightly greater than the length of said foreshortened extended edge portion of said respective inner end wall panel and (2) a line of waterresistant adhesive extending continuously from the remote end of said embossment to the point of termination of the barrier adjacent the remote free edge of said outer end wall panel.

Claim 3

A carton end wall construction according to claim 1 wherein said embossment is formed in said outer end wall panel and protrudes toward the underlying inner end wall panel.

Claim 4

A carton end wall construction according to claim 2 wherein said embossment is between 1/16 inch and 3/16 inch in width and is impressed in said end wall panel by a scoring rule.

Claim 5

A carton end wall construction according to claim 2 wherein said adhesive is a wax-resin based hot melt type adhesive.

Claim 6

A carton end wall construction according to claim 3 wherein said foreshortened extended portions of said front and rear inner end wall panel side edges have a length of between 3/8 inches and 1 1/4 inches.

Claim 7

In an end wall construction for a sealed end paperboard carton formed of a single blank cut and scored to provide front, bottom and rear receptacle panels, a cover panel and a cover closure panel in hingedly connected sequence, said end wall construction including inner end wall panels hinged to said front and rear receptacle panels and an outer end wall panel hinged to said bottom receptacle panel, said outer end wall panel being in overlying relationship to said inner end wall panels, the side edges of said inner end wall panels lying adjacent the hinge score line joining said outer end wall panel to said bottom receptacle panel having foreshortened extended portions with the remainder of said edges being recessed with respect thereto, the improvement comprising: a continuous anti-seepage barrier formed between and bridging the lap space between the outer and one of said inner end wall panels along a line parallel and adjacent to a side edge of said outer end wall panel and extending from the hinge score line joining said outer end wall panel and said bottom receptacle panel outward toward the free edge of the outer end wall panel remOte from said hinge score line and terminating adjacent said remote free edge, said barrier comprising: (1) an embossment formed in one of said overlapped end wall panels and protruding to bridge the lap space between said overlapped panels, said embossment extending from said hinge score line toward said remote free edge a distance slightly greater than the length of said foreshortened edge of said inner end wall panel, and (2) a line of water-resistant adhesive extending continuously from the remote end of said embossment to a point adjacent said remote free edge of said outer end wall panel.

Claim 8

In an end wall construction for a sealed end paperboard carton formed of a single blank cut and scored to provide front, bottom and rear receptacle panels, a cover panel and a cover closure panel in hingedly connected sequence, said end wall construction including inner end wall panels hinged to said front and rear receptacle panels and an outer end wall panel hinged to said bottom receptacle panel, said outer end wall panel being in overlying relationship to said inner end wall panels, the side edges of said inner end wall panels lying adjacent the hinge score line joining said outer end wall panel to said bottom receptacle panel having foreshortened extended portions with the remainder of said edges being recessed with respect thereto, the improvement comprising: a continuous anti-seepage barrier formed between and bridging the lap space between the outer and one of said inner end wall panels along a line parallel and adjacent to a side edge of said outer end wall panel and extending from the hinge score line joining said outer end wall panel and said bottom receptacle panel outward toward the free edge of the outer end wall panel remOte from said hinge score line and terminating adjacent said remote free edge, said barrier comprising: (1) an embossment formed in one of said overlapped end wall panels and protruding to bridge the lap space between said overlapped panels, said embossment extending from said hinge score line toward said remote free edge a distance slightly greater than the length of said foreshortened edge of said inner end wall panel, and (2) a line of water-resistant adhesive extending continuously from the remote end of said embossment to a point adjacent said remote free edge of said outer end wall panel.