Patent ID: 6779948
Filing Date: 2004-08-24
Classification: A01B,B09C,E02F

Abstract:
An apparatus for remediating contaminated soil, comprising:a mobile vehicle having mounted thereon a boom having a head end and a tail end and two opposing lateral sides, the boom housing a drive mechanism for turning a soil cutting chain along a loop path, the drive mechanism having a rotating idler wheel near the tail end of the boom and disposed between the opposing lateral sides of the boom; a pair of soil cutting drum assemblies, one such drum assembly disposed on each lateral side of the boom and operatively connected to the idler wheel to rotate each drum at the same speed as the idler wheel, each drum having a width dimension of at least one foot, each drum assembly carrying a plurality of soil cutting teeth; and the teeth on each drum being arranged in a pattern and orientation such that some of the teeth propel soil across the drum in a direction away from the cutting chain and others of the teeth propel soil across the drum toward the cutting chain.