Patent ID: 8464491
Filing Date: 2013-06-18
Classification: E04B,E04C

Abstract:
1. A block system for constructing a column having a vertical axis comprising: a plurality of blocks configured to be stacked vertically to form a column, each block having an upper surface spaced apart from an opposed lower surface, thereby defining a block thickness; opposed first and second side surfaces extending between the upper and lower surfaces; opposed third and fourth side surfaces extending between the upper and lower surfaces, the opposed first and second side surfaces extending between the third and fourth side surfaces and the opposed third and fourth side surfaces extending between the first and second side surfaces, the upper and lower surfaces together with the side surfaces defining a block body; each block further having an interlocking member including at least one projection extending from one of the upper and lower surfaces and at least one indentation extending into the other of the upper and lower surfaces, the interlocking member being configured such that when a first block is stacked vertically adjacent to a second block to form a column the at least one projection of the first block is received in the at least one indentation of the second block to interlock the first block with the second block, the at least one projection and the at least one indentation being positioned to prevent the first and second blocks from interlocking when forming the column unless the first side surface of the first block is in the same plane as one of the third and fourth side surfaces of the second block; wherein each block further has at least one recessed area in the upper or lower surface of the block having the projection, the recessed area extending from the indentation towards one of the first, second, third and fourth side surfaces and ending a distance from the one of the first, second, third and fourth side surface surfaces.