# US 11,440,698 B2 · Leak proof container with adhesive attachment

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- Number: US 11,440,698 B2
- Document ID: US11440698B2
- Status: Granted
- Kind: B2
- Application number: 17/405,600
- Filed: 2021-08-18
- Published: 2021-12-09
- Granted: 2022-09-13
- Earliest claimed: 2019-09-17
- Assignees: International Paper Company
- Applicants: International Paper Company
- Inventors: Mark Anthony Wisecarver; James William Sloan, II; Kenneth Calvin Hyatt
- Web page: https://patentgrep.com/patent/US11440698B2

## CPC

- B65D 5/248: {and at least one side being extended and doubled-over to enclose the adjacent gusset flaps}
- B65D 5/4279: {Joints, seams, leakproof joints or corners, special connections between panels (B65D5/209 takes precedence)}
- B31B 70/006: {Controlling; Regulating; Measuring; Safety measures}
- B31B 70/04: Feeding sheets or blanks
- B31B 70/26: Folding sheets, blanks or webs
- B31B 70/62: by adhesives
- B65D 5/244: {and the gussets folds connected to the outside of the container body (B65D5/247, B65D5/248 take precedence)}
- B65D 5/28: 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
- B65D 5/4266: {Folding lines, score lines, crease lines}
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B)

## 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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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

### Claim 4 (depends on 1)

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.

### Claim 5 (depends on 1)

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.