Patent ID: 7992329
Filing Date: 2011-08-09
Classification: E02F

Abstract:
1. A single pointed ripper bucket excavation tool for use mounted to an arm of an excavation machine, said single pointed ripper bucket excavation tool comprising: a tube structure mounted for rotation from the arm, a pair of generally flat, side plates mounted to the tube structure and narrowing from a first width in a region of the tube structure to a second, relatively smaller width at a tip region spaced from the tube structure, said pair of generally flat, side plates narrowing at an angle of between about 20° and about 40°, a single ripper tooth mounted in the tip region of the ripper bucket, and one or more plate members mounted to span a region between said side plates, rearward of said single ripper tooth in a direction of ripping motion, and defining, with said side plates, a ripper bucket volume for receiving material ripped from the substrate during ripping motion; wherein said single pointed ripper bucket excavation tool has only one single ripper tooth, said single ripper tooth being mounted in the tip region of the ripper bucket; wherein the ripper bucket defines a bottom surface generally following a curve having its center near the ripper bucket arm pivot; and wherein the side plates define front leading edges that curve in an upward concave shape angled rearwardly, away from the arm pivot radial centerline.