Patent ID: 6257967
Filing Date: 2001-07-10
Classification: B24B

Abstract:
A sharpener for sharpening an elongate knife edge defining an edge angle comprising:a power head, a primary rotary sharpening stone that is disk shaped having a front side defining a front and a back side defining a back and an axis defining a center of rotation, said primary sharpening stone rotatably driven by the power head;a bracket secured to the power head at the back of the primary sharpening stone and extended around said primary sharpening stone to the front of the primary sharpening stone;a secondary sharpening stone that is disk shaped and is rotatably mounted to the bracket at the front of the primary sharpening stone, said secondary sharpening stone having a peripheral surface engaging the front side of the primary sharpening stone and rotatably driven around an axis of rotation by said primary sharpening stone;said bracket, said secondary sharpening stone, and said primary sharpening stone cooperatively configured to define a primary sharpening surface and a secondary sharpening surface that intersects to define an angle mated to the edge angle of the knife edge.