US Patent 7618218 Interlocking retainer ties

A retainer tie system 10 and method including a wall tie 120 having on the lower side 126 of the wall tie 120 triangular-shaped grooves 140, and a lip 150; a block tie 220 including a first and a second ridge 240, 242 on the upper side 224 of the block tie 220 such that the block tie 220 may fit across a deadman tie 320; and the deadman tie 320 including triangular-shaped tongues 340 on the upper side 120 of the deadman tie 320 for assembling a straight, concave, or convex interlocking retainer wall; and a forward and an aft ridge 350, 352 disposed on the upper side 324 of the deadman tie 320 for interlocking the deadman tie 320 with the block tie 220.