Patent ID: 8291669
Filing Date: 2012-10-23
Classification: E04B,E04C

Abstract:
1. A structural block comprising: a top surface; a bottom surface; a front surface having four edges; a rear surface comprising a first edge and a second edge opposite to the first edge, a third edge connecting the first edge to the second edge and defining a first series of an alternating protrusion and recess, and a fourth edge opposite the third edge and connecting the first edge to the second edge and defining a second series of an alternating protrusion and recess; a first sidewall section extending from the front surface to the rear surface and disposed between the top surface and the bottom surface and defining one of the protrusion or the recess of the first series or the second series; and a second sidewall section extending from the front surface to the rear surface and disposed between the first sidewall section and one of the top surface or the bottom surface and defining the other of the protrusion or the recess of the first series or the second series, wherein the surface defining the protrusion is perpendicular to the front, rear, top and bottom surfaces.