Leak proof container with adhesive attachment

Patent metadata

Field	Value
Publication number	US-11440698-B2
Application number	US-202117405600-A
Country	US
Kind code	B2
Filing date	Aug 18, 2021
Priority date	Sep 17, 2019
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

A leak proof container and a method of forming the container from a blank. The blank includes a bottom panel, first and second side panels connected to the bottom panel at opposing lateral edges, and first and second end portions located at opposing longitudinal ends of the blank. Each end portion includes an inner end panel connected to the bottom panel, an outer end panel connected to the inner end panel, and first and second corner panels forming gussets connected to a respective one of the first and second side panels and connected to the inner end panel. An adhesive area is located on one side of the blank and comprises at least a portion on each of the outer end panel and the inner end panel. The adhesive area adheres the gussets to the inner end panel and to the outer end panel.

First claim

What is claimed is:

1. A method of forming a container from a blank having an inner and outer side, the blank comprising a bottom panel having a plurality of peripheral edges, first and second side panels connected to the bottom panel at opposing lateral peripheral edges and defining lower edges of the container, first and second end portions located at opposing longitudinal ends of the blank, each end portion including an inner end panel connected to a longitudinal peripheral edge of the bottom panel, an outer end panel having an inner longitudinal edge hingedly connected to a longitudinal edge of the inner end panel, first and second corner panels, each corner panel having a longitudinal edge connected to a respective one of the first and second side panels and a lateral edge connected to a lateral edge of the inner end panel, the method including forming an end portion of the container comprising:
applying an adhesive material to form an adhesive area located on the outer side of the blank and comprising at least a portion on each of the outer end panel and the inner end panel and extending longitudinally generally continuously from the outer end panel to the inner end panel;
folding the side panels and inner end panel upward from the bottom panel, and simultaneously folding each corner panel about a diagonal gusset fold line to define a gusset;
folding each gusset perpendicular to a respective side panel to overlapping relationship with the inner end panel and into engagement with the adhesive area; and
folding the outer end panel about the inner longitudinal edge of the outer end panel to position the adhesive area in engagement with at least a portion of each of the gussets.

2. The method as set forth in claim 1 , wherein the adhesive area comprises first and second laterally spaced adhesive areas formed as strips adjacent to opposing lateral edges of the outer and inner end panels.

3. The method as set forth in claim 1 , wherein the adhesive area is defined by an application of hot melt glue.

4. The method as set forth in claim 1 , wherein the gussets are folded to overlapping relationship with an outer side of the inner end panel.

5. The method as set forth in claim 1 , wherein the gussets are folded to overlapping relationship with an inner side of the inner end panel.

Assignees

• Int Paper Co

Inventors

• Wisecarver Mark Anthony
• Sloan Ii James William
• Hyatt Kenneth Calvin

Classifications

• B31B70/04

  Feeding sheets or blanks · CPC title

• B31B70/26

  Folding sheets, blanks or webs · CPC title

• B65D5/4266

  Folding lines, score lines, crease lines · CPC title

• B65D5/28

  with extensions of sides permanently secured to adjacent sides, with sides permanently secured together by adhesive strips, or with sides held in place solely by rigidity of material · CPC title

• B31B70/006

  Controlling; Regulating; Measuring; Safety measures · CPC title