Insulation molded, load bearing, prefabricated panels

Claim 1

A prefabricated building panel, capable of bearing weight supporting loads, and having insulation premolded into the panel, comprising: at least a pair of spaced apart metal rectangular frame members connected to each other by spacers which prevent substantial metal to metal contact between said frame members, the interior perimeters of said frame members defining an unobstructed open and freely accessible interior panel space, said frame members being joined along one side by fastening bolts, extending from one panel member to the other, each pair of frames having on its side opposite said fastening bolts, a locking means for locking one pair of panel frame members to the fastening bolts of another pair of panel frame members, and an expanded polymeric insulative material completely filling said interior panel space to define generally flat, planar, interior and exterior surfaces of said prefabricated panel which are exposed through said rectangular opening defined by said frame members and heat molded directly to said panel frame members, while said frame members are being subjected to foam expansion conditions.