Patent ID: 8240105

Claim:
A segmental block retaining wall comprising: (a) a plurality of upper blocks and lower blocks, where upper blocks are superjacent on the lower blocks, where each block has (i) a front wall; (ii) a rear wall opposed to said front wall; (iii) first and second side walls; (iv) an upper block planar surface; (v) a lower block planar surface; wherein said lower surface has a slot having a concave profile extending longitudinally parallel to, and offset inwardly from, said front wall, and said upper surface has two anchor holes; and (b) a connector associated with one said lower block, having a bottom portion with two anchor plugs, each said plug for insertion into one of said two anchor holes of said lower block, and a top portion having a gripping surface of approximate convex shape in cross-section with at least three edges for complementary tight fit with said slot of one said superjacent upper block, said connector extending longitudinally approximately the length of said slot; wherein vertical axis of said anchor hole is offset inwardly from said front wall more than said slot is; and wherein said connector is tightly received in said slot of said superjacent upper block and anchored in said anchor holes, being sandwiched tightly by said upper block and said lower block.