Displayable modular container for produce

• US 7,081,077 B2
• Filed: 10/27/2003
• Issued: 07/25/2006
• Est. Priority Date: 10/22/1999
• Status: Expired due to Fees

• Current Assignee: Packaging Corporation of America
• Original Assignee: Packaging Corporation of America
• Inventors: Jackson, Keith A., Southwell, James D.
• Primary Examiner(s): TAWFIK, SAMEH
• Application Number:
  US10/694,965
• Publication Number:
  US 20040089702A1
• Time in Patent Office: 1,002 Days
• Field of Search: 493/68, 493/69, 493/70, 493/51, 493/79, 493/104
• US Class Current: 493/68
• CPC Class Codes: B65D 5/002 having integral corner posts B65D5/0045 and B65D5/0065 take precedence
• CPC Class Codes: B65D 5/48018 formed by folding extensions of side panels of a "cross-like" body blank B65D5/4801 takes precedence
• CPC Class Codes: B65D 5/48022 formed by two parallel panels located in the base of a tray being folded up towards each other
• CPC Class Codes: Y10S 229/918 Corner construction
• CPC Class Codes: Y10S 229/919 Reinforced wall

Abstract

A stackable produce container is formed from a flat one-piece blank, typically of corrugated paper stock. The container has reinforced corners and is divided into compartments by transverse ribs which provide resistance to bulging under load and when exposed to high humidity.

Claims

1. A method of forming a container from a one-piece blank, the container having at least two compartments and comprising at least four side panels, two end panels and two bottom panels, the two bottom panels being separated by a transverse rib extending to the top of the side panels, the method comprising the acts of:

(a) providing the one-piece blank including at least four side panels, two end panels and at least two bottom panels;

(b) forming the transverse rib by folding the one-piece blank along a first fold line extending across the blank and defining the top of said blank at a 90°

angle along two fold lines parallel to said first fold line and defining the bottom edges of the transverse rib, the transverse rib having a panel foldably attached to one end of each face thereof;

(c) securing together the two sides of the transverse rib of (b);

(d) forming the side panels by folding the side panels at a 90°

angle from the folded blank of (c) and defining the two compartments in combination with the transverse rib, each of the opposing sides being formed by the combination of two side panels, each of the opposing sides having one of the side panels being longer than the other side panel, the length of the opposing sides being greater than each of the individual lengths of the two side panels;

(e) securing the two longer side panels to their adjacent side panels;

(f) folding the foldably attached panels at one end of each face of the transverse rib and securing each of the foldably attached panels to a side panel adjacent the opposite face of the transverse rib, the transverse rib extending to the top of the side panels; and

(g) reinforcing the corners of the container where the end and side panels meet by folding at least once a tab at each corner of the blank to form a reinforcing panel and securing the reinforcing panel to an adjacent end panel.

2. The method of claim 1 wherein the one-piece blank is corrugated paperboard.

3. The method of claim 1 wherein the one-piece blank has exactly two compartments.

4. The method of claim 1 wherein the one-piece blank has exactly six side panels.

5. The method of claim 1 wherein the one-piece blank has exactly two bottom panels.

6. The method of claim 1 wherein the one-piece blank has exactly six side panels and two bottom panels.