Patent ID: 7096634
Filing Date: 2006-08-29
Classification: B28B,E02D,E04B,E04C

Abstract:
1. A block suitable for forming a block wall, said block comprising: a front wall extending between upper and lower block surfaces and presenting a first block face; a rear wall spaced from said front wall and extending between the upper and lower block surfaces and presenting a second block face facing away from said first block face; a pair of side walls extending between said front and rear walls and said upper and lower block surfaces, wherein a reference plane substantially parallel to said front and rear walls extends between said pair of side walls; at least one pair of pin slots formed in said upper block surface, each pin slot of said at least one pair of pin slots being formed in said upper block surface on opposing sides of said reference plane and spaced from said reference plane, wherein at least one of said pin slots having a planar side substantially parallel with said reference plane for orientating a planar outwardly facing surface of a pin received in said at least one pin slot to engage said planar outwardly facing surface of the pin with an inner wall of a block placed on said upper block surface; and an opening formed in said lower block surface, said opening having a forward facing inner wall intersecting said lower block surface and spaced rearwardly from said reference line and a rearward facing inner wall intersecting said lower block surface and spaced forwardly from said reference plane, wherein said forward facing inner wall and said rearward facing inner wall are closer to said reference plane than said pin slots.