Patent ID: 8074957

Claim:
A formliner for forming a decorative pattern in a material, the formliner comprising: a sheet of material; at least one cell formed in the sheet of material; and at least one rib extending along the cell and forming a boundary of the cell, the rib defining a raised profile, the rib comprising: a hollow first section extending upwardly from an inner corner wherealong the first section interconnects with the cell to a top surface and downwardly from the top surface to a free outer edge, the outer edge comprising at least one protrusion that extends inwardly toward the inner corner thereof, the first section further defining an exterior profile and a recess that defines a cross-sectional interior profile; and a second section defining a cross-sectional exterior profile, the cross-sectional exterior profile of the second section being less than the cross-sectional interior profile of the recess of the first section, the second section further defining an inner corner wherealong the second section interconnects with the cell and a free outer edge, the inner corner comprising at least one detent extending inwardly toward the outer edge thereof; wherein a plurality of formliners can be interconnected by overlaying first sections onto second sections such that the protrusion of the first section engages the detent of the second section such that visible seams in the decorative pattern are minimized when the formliners are interconnected in use.