Displayable produce container and method for making the same

• US 6,375,068 B2
• Filed: 08/02/2001
• Issued: 04/23/2002
• Est. Priority Date: 10/22/1999
• Status: Active Grant

• Current Assignee: Packaging Corporation of America
• Original Assignee: Packaging Corporation of America
• Inventors: Jackson, Keith A., Southwell, James D.
• Primary Examiner(s): Elkins, Gary E.
• Application Number:
  US09/920,987
• Publication Number:
  US 20010042783A1
• Time in Patent Office: 264 Days
• Field of Search: 229/116.1, 229/168, 229/169, 229/171, 229/174, 229/178, 229/915, 229/919, 206/509, 206/511, 206/512, 493/162, 493/167-174
• US Class Current: 229/174
• CPC Class Codes: B65D 5/0045 having both integral corner posts and ledges
• CPC Class Codes: Y10S 229/915 Stacking feature
• CPC Class Codes: Y10S 229/919 Reinforced wall

Abstract

The present invention provides a stackable open-top container for use in shipping, storing and retail display of produce and other articles. The produce container of the present invention contains a bottom wall, two side walls, and two end walls. The concave ledges of the side walls contain curved scores. Each side wall contains two panels, each of which contains a mirrored curved score and two minor flaps. The curved scores cause the side walls to go into tension and create stacking shoulders for other containers. The minor flaps of the side walls surround the end walls to increase structural rigidity.

Claims

1. A method of forming a container, comprising:

providing a blank cut and scored to provide;

a bottom panel,

first and second end wall panels extending outwardly from said bottom panel,

first and second outer side panels extending outwardly from said bottom panel,

first and second inner side panels extending outwardly from said first and second outer side panels, said inner and outer side panels hingedly connected to each other along opposing concave scores to create a concave-shaped ledge,

a pair of minor inner side flaps hingedly connected to each of said inner side panels, and

each of said outer side panels including a pair of minor outer side flaps on each of said outer side panels hingedly connected to said outer side panel;

folding said outer side panels upwardly into positions approximately orthogonal to said bottom panel;

folding said inner side panels downwardly and inwardly into positions approximately orthogonal to said bottom panel, forming rigid concave ledges between respective inner and outer side panels;

folding said minor inner side flaps inwardly into positions approximately orthogonal to said inner side panels;

folding said first and second end walls upwardly into positions approximately orthogonal to said bottom panel; and

folding said minor outer side flaps around the outside of said end walls, such that said minor outer side flaps are positioned approximately orthogonal to said outer side panels.

2. The method of claim 1, further comprising placing adhesive between each of said inner side panels and respective said outer side panels at pinch points.

3. The method of claim 2, further comprising placing adhesive between said first endwall and a respective minor inner flap and placing adhesive between said second endwall and a respective minor inner flap.

4. The method of claim 2, further comprising placing adhesive between said first endwall and a respective minor outer flap and placing adhesive between said second endwall and a respective minor outer flap.

5. A method forming a container, comprising:

providing a blank cut and scored to provide;

a bottom panel,

first and second end walls,

first and second side panels extending outwardly from said bottom panel, and

inner and outer side panels on each of said first and second side panels, said inner and outer side panels hingedly connected to each other along opposing concave scores to create a concave-shaped ledge;

folding said outer side panels upwardly into positions approximately orthogonal to said bottom panel; and

folding said inner side panels downwardly into positions approximately orthogonal to said bottom panel, forming rigid concave ledges between respective inner and outer side panels.

6. A stackable container, comprising a bottom wall, first and second opposing side walls, first and second opposing end walls, each of said first and second side walls including an inner side panel and an outer side panel hingedly connected to each other along opposing concave scores to create a concave-shaped ledge.

7. The container of claim 6, further comprising a pair of minor inner side flaps hingedly connected to each of said inner side panels and each of said outer side panels includes a pair of minor outer side flaps hingedly connected to said outer side panel, said end wall being captured between said minor inner side flaps and said minor outer side flaps.

8. The container of claim 6, wherein the opposing ends of said rigid ledge contain stacking shoulders.

9. The container of claim 6, wherein the opposing ends and the center area of said ridge ledge each contain a stacking shoulder.

10. The container of claim 6, wherein each of said inner side panels is attached to a respective said outer side panel at one or more pinch points.

11. The container of claim 6, further comprising a plurality of stacking tabs and a plurality of stacking receptacles.

12. The container of claim 11, wherein at least one stacking tab extends upwardly from the upper edge of said inner side panel of said side wall.

13. A container, comprising:

a bottom wall;

first and second opposing end walls;

first and second opposing side walls, each of said first and second side walls including an inner side panel and an outer side panel hingedly connected to each other along opposing concave scores to create a rigid ledge, each of said inner side panels having a pair of minor inner side flaps extending therefrom and hingedly connected to said inner panel, each of said outer side panels having a pair of minor outer side flaps extending therefrom and hingedly connected to said outer side panels, each of said end walls being captured between respective ones of said minor inner side flaps and said minor outer side flaps, wherein the opposing ends and the center of said rigid ledge each contain a stacking shoulder;

at least one pinch point disposed along said first and second sidewalls; and

at least one stacking tab disposed along at least one of the side walls and at least one of the end walls.

14. The container according to claim 13, further comprising pinch points located between each of said inner side panels and respective said outer side panels, wherein said pinch points are adapted to receive adhesive.

15. The container according to claim 13, further comprising adhesive between said first endwall and a respective minor outer flap and placing adhesive between said second endwall and a respective minor outer flap.

16. The container according to claim 13, wherein at least one stacking tab extends upwardly from the upper edge of said inner side panel of said side wall.

17. The container according to claim 13, wherein the rigid ledge is adapted to create tension in said side walls.