Single piece packaging container and device for making same

A configuration for a single piece packaging container enclosing two or more dissimilar objects which should be prevented from touching or intermixing during shipping, comprising:

• a preformed, rigid unit of generally U-shaped cross-section having a main body portion with a bottom wall and opposing side walls,
• the unit forming three end closures for the packaging container, formed from primary and secondary first closure panels, the first closure panels having side walls, the first closure panels extending from and adjacent to both ends of the main body portion wherein both first closure panels have side walls, and the side walls have a height approximately equal to the height of the main body portion side walls, primary and secondary second closure panels extending from and adjacent to both ends of the first closure panels, the second closure panels having side walls, wherein the combined lengths of the second closure panels are approximately equal to the length of the main body portion, and third closure panels extending from and adjacent to both ends of the second closure panels, the third closure panels having side walls, the main body portion and the first closure panels being separated from one another by first fold lines, the first closure panels and the second closure panels being separated from one another by second fold lines, the third closure panels and the second closure panels being separated from one another by third fold lines, the main body portion side walls having straight-cut corners at their junctures with the first closure panels and the first closure panels side walls having first straight-cut corners adjacent the main body portion, the first closure panels side walls having second straight-cut corners adjacent the second closure panels and the second closure panels side walls having first straight-cut corners adjacent the first closure panels, the second closure panels side walls having second straight-cut corners adjacent the third closure panels and the third closure panels having straight-cut corners adjacent the second closure panels, the first closure panels being configured for folding generally perpendicular to the main body bottom wall, the second closure panels being configured for insertion inside the main body portion side wall, folding generally perpendicular to the first closure panels and generally parallel to the main body bottom wall, and the third closure panels being configured for insertion inside the second closure panels side walls, folding generally perpendicular to the main body portion bottom wall and generally parallel to the first closure panels, creating two separate compartments with a double-fold divider.