Patent ID: 8043143
Filing Date: 2011-10-25
Classification: B24B

Abstract:
1. An electrical sharpener for a knife that has at least one cutting edge facet adjacent the knife face, said sharpener comprising an enclosing base and cover structure, at least one knife angle guiding slot in said cover structure with first and second knife guiding walls extending downwardly from the top surface of said cover structure, an electrically powered motor, a nominally flat abrasive surfaced disk on a motor driven shaft, said disk held in a rest position by force of a spring yet slidingly displaceable when contacted by insertion of the knife into the knife angle guiding slot, said first guiding wall of said guiding slot comprising a guide surface against which the knife face would be placed during insertion of the knife into said guiding slot, said second guiding wall of said guiding slot having stop structure at a location inwardly of said top surface of said cover structure to contact a shoulder of the knife facet and prevent further insertion of the knife into said guiding slot whereby the lateral displacement of said disk is limited by the physical contact of the shoulder of the knife facet with said stop structure of said second guiding wall of the knife guiding slot and without contact of the cutting edge with any of the guiding wall structure.