Patent ID: 6916001

Claim:
A concrete form apparatus, comprising: a plurality of adjacent rectangular panels, each said panel having a first edge and a second edge, spaced-apart first connector elements adjacent to the first edge of each said panel, and spaced-apart second connector elements adjacent to the second edge of each said panel, the first connector elements being aligned with the second connector elements and being complementary in structure, corresponding first and the second connector elements of adjacent panels engaging each other and connecting the plurality of said panels together with the first and second edges thereof adjacent to each other, and third connector elements connected to each said panel in spaced-apart relationship; each said panel having a plurality of spaced-apart recesses along the first edge and a plurality of spaced-apart recesses along the second edge, the recesses of the first edge being aligned with the recesses of the second edge whereby apertures for tie bars are formed by the recesses between adjacent first and second edges of adjacent panels, the recesses being semicircular and the apertures being circular; a plurality of spaced-apart first walers extending across the plurality of panels; and a plurality of clamps engaging the third connector elements of the panels and connecting the walers to the panels, the clamps having slots which engage the third connector elements, each of the clamps having a U-shaped body which fits over one of the walers.