Patent ID: 6161453
Filing Date: 2000-12-19
Classification: B23D

Abstract:
A saw chain sharpener for a chain saw having a saw chain disposed on a chain bar, wherein the saw chain has a plurality of cutting teeth, each cutting tooth having a cross section which defines a crook, the crook comprising an upstanding section and a projecting section, a portion of the upstanding section lies approximately parallel to a side surface of the chain bar, the protecting section is carried by the upstanding section, at least a portion of the projecting section lies in a plane perpendicular to the side surface of the chain bar, each protecting section having a top and a bottom surface, the bottom surface of the projecting portion being closer to the chain bar than the top surface, the top surface is joined to the bottom surface by a leading edge, the angle between the leading edge and the top surface is an acute angle, the saw chain sharpener comprising:a housing comprising a recess;means for removably attaching the housing to the chain bar; andsharpening means disposed in said recess for sharpening the leading edge of each cutting tooth as the sharpening means is relatively moved through a position within the crook of each cutting tooth, a bottom surface of said sharpening mean positioned closer to the chain bar then a top surface of said sharpening means, wherein said top surface engages the leading edge when the chain saw is operated.