Patent ID: 6875093
Filing Date: 2005-04-05
Classification: B24B

Abstract:
1. In a knife sharpener having a finishing stage for sharpening the edge of a metal knife with one or more facets adjacent the edge, said finishing stage comprising a motor driven shaft, at least one slidingly mounted sharpening disk assembly, said assembly comprising a hub structure having a central bore hole through which said shaft extends for rotating said disk assembly, said hub structure supporting a symmetrically shaped rotating abrasive surface containing an ultrafine abrasive material, a knife guide disposed near said surface to align the facet into contact with said surface, and resilient structure pressing against said surface in a direction toward said guide with a force of less than 0.2 lb. by a spring action to maintain sustained rotating abrading contact with the facet and to minimize the presence of any burr being formed on the facet.