Patent ID: 7694485
Filing Date: 2010-04-13
Classification: E04B

Abstract:
1. In a building block system for constructing walls of a building including a plurality of stacked courses of mortarless interlocking building blocks, the improvement in the building block which comprises: an injection molded plastic body having a front face, a rear face, opposed top and bottom faces and opposed end faces, one of said opposed end faces having at least one vertically extending tapered socket and the other of said end faces having at least one vertically extending tapered extrusion for mating with said socket to interconnect adjacent blocks in end-to-end relation, said top and bottom faces having a plurality of interengageable mating posts and sockets to lock stacked blocks against slidable movement therebetween, said opposed front and rear faces being substantially identical and including a at least one vertically extending socket for matingly receiving an extrusion of an end face of a block, and a plurality of vertically extending holes in the block body arranged symmetrically such that the weight of the block is greatly reduced.