Patent ID: 6142713
Filing Date: 2000-11-07
Classification: B28B,B65D,E04B,E04C

Abstract:
A composite masonry block suitable for forming a retaining wall by dry stacking multiple blocks into successive overlying courses of blocks, said block comprising:a) a block body, said block body comprising a front surface and a back surface, said front surface and said back surface being substantially parallel to each other and separated by a distance comprising the depth of the block, a generally planar upper surface and a generally planar lower surface, said upper surface and said lower surface being substantially parallel to each other and separated by a distance comprising the height of the block to thereby permit generally parallel alignment between the upper surface of a block and the upper surface of the adjacent blocks in the next adjacent course of blocks, said lower surface having a smaller area than said upper surface, and opposed first and second sidewall surfaces said sidewall surfaces adjoining said block upper and lower surfaces, each of said first and second sidewall surfaces comprising a first part and a second part, said sidewall surface first parts extending from said block front surface towards said block back surface, and intersecting the front surface at an angle of ninety degrees or less, said sidewall surface second parts joining their respective sidewall surface first parts and said block back surface, each sidewall surface second part intersecting the back surface at an angle of less than ninety degrees; andb) a flange extending downwardly from the block lower surface, said flange comprising a setback surface and a locking surface, said setback surface extending from the lower rear edge of the flange towards said block front surface to adjoin said flange locking surface, said locking surface extending below the plane of said block lower surface.