Patent ID: 9724772
Date: 2017-08-08
CPC Classifications: B23D

Claim:
1. A chain saw sharpener for sharpening a saw chain, the sharpener comprising: a cylindrical body portion extending along a longitudinal axis, the cylindrical body portion including an upper portion, an intermediate portion, and a bottom portion, wherein the upper portion, the intermediate portion, and the bottom portion are removably connected to each other; a ring portion connected to a plate body, wherein at least part of a surface of the ring portion is abrasive to sharpen at least a first portion of the saw chain, the ring portion being connected to the intermediate portion via the plate, wherein the ring portion has an outer radius and an inner radius about a ring portion axis approximately aligned with the longitudinal axis, and has a thickness greater than the plate body; at least one opening in the plate body, wherein at least a portion of the at least one opening has approximately the same radius of curvature as the inner radius of the ring portion; the bottom portion of the cylindrical body portion extending beyond the intermediate portion, the bottom portion having a second radius about a bottom portion axis approximately aligned with the longitudinal axis; a flange portion integrally connected to the bottom portion and configured to sharpen at least a second portion of the saw chain, the flange portion extending radially from the second radius of the bottom portion and having a third radius about a flange portion axis approximately aligned with the longitudinal axis, wherein the third radius is greater than the second radius and less than the outer radius of the ring portion, and wherein the bottom portion is located at least partially between the flange portion and the ring portion; and a hand-held power tool removably connected to the upper portion of the cylindrical body portion.