US Patent 7147125 Collapsible transparent cooler

The invention is a collapsible transparent portable cooler with sides having two or more walls with air gaps positioned within the walls providing insulation properties and means for easily viewing the contents of the cooler from any angle. In addition to the obvious advantage to security personnel in being able to quickly screen the contents, the present invention provides envelopes on the sides and top of the cooler with the envelopes conforming substantially in size to its respective side or top. These can be easily inserted and removed through the access slots provided as needed.