The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2003
Filed:
Nov. 21, 2001
Karl M. Ritter, Geneva, IL (US);
Stone Container Corporation, Chicago, IL (US);
Abstract
A carton is provided with an automatic bottom panel, which extends from a side panel, and has two converging reverse-scored fold lines, which extend outwardly from the side panel. One end flap featuring an angled score is folded up from the automatic bottom panel and is glued to its body panel. Adhesive is applied only above the diagonal folding score, leaving the unglued section free to fold in reverse in the bottom formation. The other end panel bottom flap is folded inwardly in the box joining process and a second of that flap with another diagonal score is folded in reverse for glue application. As the main panels are folded in the final gluing process the reverse folded glued section adheres to the outside surface of the previously mentioned major bottom flap. As the carton is brought into square during the erection process, the flaps self-form into a solid, full-overlapping bottom.