Corrugated shipping tray with air space surroundings

Claim 1

A shipping tray comprising: a rectangular panel having two end and two side edges and having a thickness; two side panels each connected to a side edge of said rectangular panel by a side fold, each of said side panels further having a side panel depth perpendicular to said side fold and a length substantially equal to the length of said side edge of said rectangular panel; two end panels each connected to an end edge of said rectangular panel by an end fold, each end panel extending the full length of the end edge of said rectangular panel and a distance beyond each side edge and being separated from each of said side panels by a slot, each end panel having a depth perpendicular to said end fold equal to the sum of twice the side panel depth, approximately four times said rectangular panel thickness, and a distance substantially equal to the thickness of a desired air space, each end panel having two end panel fold lines each parallel to the end edges of the rectangular panel and extending the length of said end panel, the first end panel fold line being a distance from the rectangular panel end edge equal to the depth of a side panel plus approximately one panel thickness and the second end panel fold line being a distance from the first end panel fold line equal to approximately three thicknesses of the material of said rectangular panel, and each end panel further having two flap fold lines each substantially colinear with the corresponding side edge and extending the depth of said end panel and forming end flaps at either end of each end panel; whereby the panels may be folded in relation to one another to form a tray having a rectangular bottom and vertical sides and which is supported a distance above an underlying flat surface by said end panels to create an air space therebelow, and said end flaps capture full-length portions of the side panels between the folds thereof to maintain the tray in its folded condition.