Patent ID: 7959380
Filing Date: 2011-06-14
Classification: E02D,E04B,E04C

Abstract:
1. A construction apparatus comprising: a body having a front, a rear, a top, a bottom, and first and second opposite sides, alignment projections projecting from said top operably configured to be received in corresponding recesses in a first vertically adjacent construction apparatus of the same type, and recesses in said bottom operably configured to receive corresponding projections projecting from a top of a second vertically adjacent construction apparatus of the same type, to permit vertical stacking of said construction apparatuses of said same type, wherein: said front has a front surface having a plurality of block images configured to generally depict a plurality of courses of blocks, each of said courses having a respective course width; said front surface generally lies in a first plane, said rear has a generally flat planar rear surface that lies in a second plane, and said first plane extends at a non-zero angle to said second plane; and wherein said projections and recesses are positioned on said top and bottom respectively to cooperate with corresponding recesses and projections on said first and second vertically adjacent construction apparatuses respectively to align said first and second vertically adjacent construction apparatuses such that a center of mass of said construction apparatus is set back from a center of mass of said second construction apparatus and such that a center of mass of said first vertically adjacent construction apparatus is set back relative to a center of mass of said construction apparatus while at the same time said front surface of said construction apparatus is coplanar with front surfaces of said first and second vertically adjacent construction apparatuses so that front faces of said first and second adjacent construction apparatuses will appear generally contiguous with said front face of said construction apparatus.