Patent ID: 6508041
Filing Date: 2003-01-21
Classification: E04B

Abstract:
A block for use in interlocking with other similar blocks in constructing a building comprising:a block body having a top surface and a bottom surface, the block body having: an outer block wall defining one side surface of the block body; a head portion extending from the outer block wall toward an opposed side surface; and two connecting portion on a respective side of the head portion; two abutment portions each at a respective end of the outer block wall and each defining a respective abutment shoulder; and a single central groove in the head portion at a position thereon opposite to the outer block wall, the groove at opposite ends thereof defining two inwardly facing shoulders each for engaging and retaining the abutment portion of a respective one of two abutting blocks such that the abutment portions are retained end to end within the single groove; wherein there is defined between the abutment portion and the connecting portion a receptacle substantially matching in shape the connecting portion for receiving in interlocking relationship the connecting portion of a co-operating interlocking block.