Patent ID: 8381478

Claim:
A retaining wall block comprising: front and back walls generally parallel to a first axis and having top and bottom ends; the front and back walls being equally distanced from the first axis; and two inner walls integral to both front and back walls therebetween and that are generally parallel to a second axis which is perpendicular to the first axis; the two inner walls spacing the front and back walls; the two inner walls being distanced so as to yield a hollow core therebetween; the inner walls having facing inner faces, opposite outer faces and a thickness which defines opposite top and bottom end side faces thereof; each of the top side faces of the inner walls having a projection thereon defining a male connector portion; the male connector portion having a first length and being offset a first distance from the first axis towards the back wall; each of the bottom side faces of the inner walls including a first female connector portion adapted to receive one of the male connector portions; each first female connector portion being registered along the first axis with a respective one of the male connector portions, having a second length substantially equal to the first length, and being offset the first distance from the first axis towards the front wall; and the back wall having first thickness inside the inner walls; the first thickness is such as to distance the front and back walls within the inner walls from about the first length so that the hollow core defines a second female connector portion adapted to receive one of the male connector portions in a complementary way along the second axis; the retaining wall block being a first retaining wall block; the male connector portion being for insertion in a one of a respective first female connector portion of a second similar retaining wall block or the second female connector portion thereof when it is mounted onto the retaining wall block so as to yield a straight or a shifted retaining wall portion; the shifted retaining wall portion resulting from the first and second retaining wall blocks having their front walls on a same side relative to the first axis and the straight retaining wall portion resulting from the first and second retaining wall blocks having their front walls on opposite sides relative to the first axis.