Patent ID: 8061095

Claim:
A block building system for building a wall structure, the system comprising: (a) a plurality of pre-formed concrete blocks configured to be stacked vertically upon one another to form the wall structure, each concrete block comprising at least one frustum-shaped protrusion extending vertically upwards from a top surface of the block, a horizontal channel formed in a bottom surface of the block and extending at least partially into an interior of the block, and at least one aperture extending vertically through the interior of the concrete block; (b) at least one elongate base track having a C-shaped vertical cross-section, the elongate base track being sized and configured to engage the horizontal channel formed in the concrete blocks; (c) a plurality of T-shaped reinforcement members each comprising a vertically extending rod portion that is sized and configured to pass through the at least one aperture formed in each concrete block, and further comprising a horizontal base that fits within the C shaped cross section of the elongate base track to position the reinforcement member along a length of the base track so that the vertically extending rod portion is aligned to and passes through the at least one aperture, the vertically extending rod portion comprise a plurality of first square saw-tooth shaped notches along a longitudinal axis thereof; (d) a plurality of rod-shaped extension members sized and configured to pass through the at least one aperture formed in each concrete block, each extension member comprising a plurality of second square saw tooth shaped notches configured to overlap and interlock with the plurality of first square saw tooth shaped notches of each T-shaped reinforcement member, the rod portion and the extension member defining a width when the rod portion and the extension member overlap and interlock to each other; and (e) a plurality of securing members operative to secure the extension members to the T-shaped reinforcement members, the securing members each having a hole having a size about equal to the overlapped and interlocked rod portion and extension member to slip the securing member thereover and hold the rod portion and the extension member together.