Patent ID: 7523854

Claim:
A drain pan assembly for receiving liquid from air conditioners, refrigerators, and freezers, the drain pan formed from a blank and comprising: (a) a planar base, a plurality of peripheral sections, a corresponding plurality of base forming fold lines, and a plurality of corner piece forming fold lines, wherein the plurality of peripheral sections are bent about the corresponding base forming fold lines to define the planar base and to form four peripheral tapered walls having an upper edge and defining an interior surface and an exterior surface of the drain pan assembly, and wherein two of the corner piece forming fold lines and portions of two of the plurality of peripheral sections form a first corner piece; (b) a diagonal corner fold line within the first corner piece intermediate the two corner piece forming fold lines to form a corner flap, wherein the corner flap is folded along the diagonal corner fold line to form an exposed upper edge and to dispose the two of the corner piece forming fold lines substantially in contact with each other, wherein the corner flap is bent about each of the corner piece forming fold lines to contact the corner flap with the exterior surface of the peripheral tapered wall, and a portion of the corner flap between one corner piece forming fold line and the diagonal corner fold line contacting the exterior surface of the peripheral wall, wherein a remaining portion of the corner flap between the remaining corner piece forming fold line and the diagonal corner fold line is parallel to and contacts the portion of the corner flap contacting the exterior surface of the peripheral tapered wall, and the upper edge of each peripheral tapered wall includes a hem fold line; and (c) a hem bent about the hem fold line of each peripheral tapered wall to define a peripheral wall height, each hem contacting the interior surface of a corresponding peripheral tapered wall, wherein the exposed upper edge of the corner flap is at or below the peripheral wall height, and wherein the plurality of peripheral sections, the planar base, the corner flap and the hem are an integral one piece construction.