Patent ID: 7029203
Filing Date: 2006-04-18
Classification: B09B,B09C,E02D

Abstract:
1. A casing section for use in a barrier, the casing section comprising: a hollow elongated body having an inner surface, an outer surface, a longitudinal axis, a length and a perimeter; a plurality of inner walls within the hollow elongated body; a plurality of female interlock structures in the form of channels disposed within the body in a predetermined arrangement, each of the channels defined by the inner surface of the hollow elongated body and at least one inner wall of the plurality and extending substantially parallel to the long axis along the length of the hollow elongated body and including a an access slot thereinto from an exterior of the hollow elongated body; an inner chamber within the hollow elongated body defined by at least some inner walls of the plurality and having at least one inner wall in common with the at least one inner wall defining a female interlock structure of the plurality; and a male interlock structure protruding from the exterior of the hollow elongated body and extending substantially parallel to the longitudinal axis and extending substantially along the length of the hollow elongated body, the male interlock structure configured to extend into an access slot of a channel of a female interlock structure of another casing section.