Patent ID: 7523591

Claim:
A method of making a wall comprising a plurality of concrete panels, each panel having a slab and a pair of end ribs, the method comprising the steps of, A) making panels by a process comprising steps of, (a) providing a first form having a base and sides which will define the perimeter of the panel; (b) providing a second form which will define a space between the end ribs; (c) providing at least two sets of holes through two opposed sides of the form and two opposed sides of the second form, each set of holes being concentric when the second form is positioned in the first form; (d) positioning the second form in the first form; (e) placing rods through each set of concentric holes; (f) pouring concrete into the form to form the slab; (g) pouring concrete into the form to form the ribs and, (h) removing the panel from the rods and form, whereby holes are opened in the end ribs; and, B) placing two or more of the panels adjacent each other such that the holes in the end ribs of one panel are aligned with the holes in the end ribs of an adjacent panel to produce pairs of signed holes; and, C) securing the adjacent panels together using fasteners passing through the pairs of aligned holes.