Container having self-locking structure to provide added stability

• US 7,467,743 B1
• Filed: 12/12/2007
• Issued: 12/23/2008
• Est. Priority Date: 12/12/2007
• Status: Expired due to Fees

• Current Assignee: International Paper Company
• Original Assignee: International Paper Company
• Inventors: Philips, Nicholas A
• Primary Examiner(s): Elkins; Gary E
• Application Number:
  US11/954,914
• Time in Patent Office: 377 Days
• Field of Search: 229/191, 229/195, 229/196, 229/169, 229/174, 229/178
• US Class Current: 229/169
• CPC Class Codes: B65D 5/0045 having both integral corner posts and ledges

Abstract

A tray-type container having a bottom panel is provided. The container has an outer side panel extending upwardly from the bottom panel. The outer side panel has a slit. An end panel is provided extending upwardly from said bottom panel to form, along with said side panel, an inner cavity. A flap extends from the end panel. The flap from the end panel is positioned within the slit of the outer side panel.

Claims

1. A blank for a container comprising:

a single sheet of foldable material cut and scored to define

a bottom panel, said bottom panel having a side edge and an end edge;

a side panel hingedly attached to said bottom panel along said side edge, said side panel having a slit formed within a body of the panel, the side panel having a top edge opposite the attachment of the side panel to the bottom panel, and a side edge extending between the side panel attachment to the bottom panel and the side panel top edge;

an end panel hingedly attached to said bottom panel along said end edge, the end panel having a first flap extending therefrom, the first flap having a plurality of fold lines;

wherein said slit is sized to receive said first flap and wherein after positioning said first flap through said slit the first flap may be folded at one or more of the plurality of fold lines and positioned adjacent to either the side panel or the end panel;

a second flap attached to the side panel along the top edge thereof, the second flap being divided by fold lines into a first section attached to the side panel, a second section attached to the first section and extending beyond the side edge of the side panel and having an outer end opposite the attachment of the second section to the first section, and a third section attached to the second section at its outer end, and

an opening in the end panel positioned and sized to receive the third section when the container is erected.

2. The blank of claim 1 wherein the blank is formed from at least one of a paperboard, containerboard, cardboard, pasteboard, fiberboard, corrugated containerboard, corrugated paperboard, single wall corrugated containerboard, and multiwall corrugated containerboard.

3. A container comprising:

a bottom panel,

an outer side panel extending upwardly from said bottom panel wherein the outer side panel has a slit;

an end panel extending upwardly from said bottom panel to form, along with said side panel, an inner cavity an opening in the end panel, the end panel having an outer face;

a first flap extending from the end panel, the first flap having a plurality of fold lines;

wherein the first flap is positioned within the slit of the outer side panel and wherein the first flap may be folded at one or more of the plurality of fold lines and positioned adjacent to either the side panel or the end panel,

a second flap attached to the side panel along the top edge thereof, the second flap being divided by fold lines into a first section attached to the side panel, a second section attached to the first section and extending down the outer face of the end panel, and a third section attached to the second section and extending through the end panel opening.

4. The container of claim 3 wherein the container is formed from at least one of a paperboard, containerboard, cardboard, pasteboard, fiberboard, corrugated containerboard, corrugated paperboard, single wall corrugated containerboard, and multiwall corrugated containerboard.