Patent ID: 8181476
Filing Date: 2012-05-22
Classification: B60P,F25B,F25D,Y10T

Abstract:
1. A transport refrigeration unit of the type adapted to be mounted on a front wall of a trailer for conditioning an interior of the trailer, the unit having a structural frame which includes a section to be attached to the trailer, and vertically extending members spaced from the front of the trailer for supporting a front cover for enclosing the refrigeration unit, wherein the front cover includes a plurality of doors, with at least one of said doors comprising: a body having an inner sheet and an outer sheet with both sheets being formed of a plastic material and both having a peripheral edge; and a joint formed between the peripheral edge of said inner sheet and the peripheral edge of said outer sheet, said joint being formed by a thermoforming process such that the peripheral edges of said inner and outer sheets are integrally bonded together to provide a hollow space between said inner and outer sheets.