Patent ID: 7731455

Claim:
A concrete block for use in a segmental retaining wall in combination with an extruded strip and a bar-shaped interlocking pin having a depth and length; said concrete block having a front face and comprising a top surface and a bottom surface; a front portion having a width, rear faces and a top to bottom opening therethrough, said opening having an inner backside surface; a tail portion having a width integral with said front portion; pinholes having a width extending downwardly to a depth from the top surface of the front portion adjacent said rear faces; strip accommodating channels between said vertical pinholes and rear faces having a width narrower than the width of the pinholes said bar-shaped interlocking pin having a length greater than the depth of the pinhole and a vertically elongated slot opening for receiving the extruded strip in wrapped fashion wherein said pin and extruded strip is optionally insertable into said pinhole and strip accommodating channel by way of either the first pin end or the second pin end and retained therein and wherein the depth of the first pin-end of the interlocking pin is narrower than the depth of the middle portion of the interlocking pin, and the depth of the second pin-end of the interlocking pin is the same as the depth of the middle portion of the interlocking pin.