Patent ID: 7407218

Claim:
A first composite sidewall for a trailer having a continuous linear inside surface disposed in a first inner vertical plane and a linear outside planar surface disposed in a parallel first outer vertical plane, with the outer planar surface of the sidewall comprising a plurality of linearly arranged, interconnected and interlocked at least first and second modular panels, with each of the said panels having a complemental set of opposing parallel lateral lengths edges, which further comprising being adapted to provide encaseable opposed module keyways and being presented as follows: (a) a first elongate length or a first module, presenting in cross-section, a first bead having a forward sloped L-shaped configuration terminating in a rounded projection, which configuration defines a shallow transverse channel throughout the first lateral length of the first module, with such first bead being adapted to slidingly and interlocking engage with; (b) an abutting lateral length of a identically-constructed, second module, which second module presents an inverse sloped, L-shaped recess throughout the said module lateral length, also provided with a rounded projection, adapted to nest in the L-shaped recess of the abutting first module, so that when the two module edges are properly engaged, and interlocked, they present the an outside external surface which is substantially planar and throughout; and (c) a single right angle oriented, integral first spacer leg which extends from one of the lateral edges of the second panel module, which first leg is sized to provide an intended space dimensions between the inside surface of the first outer vertical plane and of an opposing inner surface of an outside array of interlocked panel modules, with the terminal end of each spacer leg being welded to the outer surface of the first vertical plane.