Patent ID: 6277316
Filing Date: 2001-08-21
Classification: E04C,Y10S,Y10T

Abstract:
A method of forming a wall panel of a settable material having a plurality of rib portions, comprising the steps of:inserting a spring member into a mold such that, as the spring member is inserted into the mold, mold walls of the mold draw side portions of the spring member inwardly, the spring member having a first relaxed shape prior to insertion into the mold and a second compressed shape after insertion into the mold, the side portions of the spring member providing an outward force against the mold walls after insertion of the spring member into the mold such that the side portions of the spring member sealingly bear against the mold walls to prevent leakage of the settable material between the mold and the spring member,adding the settable material to the mold to form the wall panel such that the spring member is unitarily attached to one of the rib portions of the wall panel, andallowing the settable material to set.