Patent ID: 6679022
Filing Date: 2004-01-20
Classification: E04B

Abstract:
A building block or panel having the shape of a parallelepiped comprising four edge faces and two opposed major faces, each edge face being formed to be interlockingly engagable with an edge face of a similar building block, each edge face comprising a first lateral zone comprising a portion of the edge face located to one side of a central longitudinal axis of the respective edge face and a second lateral zone comprising a portion of the edge face located to the other side of the central longitudinal axis of the respective edge face, each zone of each edge face being formed with a recess and a projection disposed on each edge face wherein each recess has a base which is substantially parallel to an upper face of the projection on the respective edge face and a junction between each recess and projection at each zone defined by an end face, the end faces at each edge face being substantially parallel to each other and inclined with respect to the respective base and upper face, the first zone on each edge face being of complementary configuration to the second zone on the respective edge face.