Double wall container with internal spacer

US7717325B2 · kind B2 · utility

Assignee

• INTERNATIONAL PAPER COMPANY · US

Inventors

• Craig Puls · Slinger, US
• Jozef Milewski · Richfield, US
• Bruce J. Thoman · Lebanon, US
• Wei Li · Mason, US
• Richard A. Tedford, Jr. · Middletown, US

Key dates

• Filing date: Oct 1, 2007
• Grant date: May 18, 2010
• Expiry date: Jun 18, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D81/3869
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A container according to a preferred embodiment of the present invention provides an inner wall and an outer wall wrapped therearound so as to define a double-wall container construction. A plurality of spacer elements are interposed between the inner and the outer walls so as to maintain a minimum thickness of an air space defined therebetween. In normal use conditions, the spacer elements do not contact the inner wall; however, the spacer elements prevent the outer wall from contacting the inner wall during non-standard use conditions.