Patent ID: 6151991
Filing Date: 2000-11-28
Classification: B24D

Abstract:
A sharpening system for sharpening edged objects, comprising:a block having substantially planar and generally rectangular first and second faces, a pair of substantially planar and generally rectangular ends, and a pair of substantially planar and generally rectangular sides extending between said ends of said block;said block comprising terra cotta;said ends of said block lying in substantially parallel planes to each other;said sides of said block lying in substantially parallel planes to each other substantially perpendicular to said planes of said ends of said block;said second face of said block lying in a plane substantially perpendicular to said planes of said ends and said sides of said block;said first and second faces of said block lying in planes extending at an acute angle therebetween;wherein said acute angle between said first and second faces of said block is about 2 degrees;said block having a length defined between said ends of said block;said block having a width defined between said sides of said block;said length of said block being between about three times and about four times greater than said width of said block;said block having a thickness defined between said first and second faces of said block;wherein said thickness of said block at one of said ends of said block is about three-fourth said thickness of said block at the other of said ends of said block;a rectangular case having generally rectangular top and bottom panels, a pair of generally rectangular side panels, a generally rectangular end panel and a generally rectangular open end into said case;said top and bottom panels of said case lying in substantially parallel planes to each other;said side panels of said case lying in substantially parallel planes to each other;said end panel of said case lying in a plane substantially perpendicular to said side panels of said base;said planes of said side panels and said end panel of said case extending substantially perpendicular to said top and bottom panels of said case;said panels of said case defining a generally rectangular space in said case;one of said ends of said block being inserted into said space of said case through said open end of said case;said space of said case being sized to completely fit said block therein;said case having a length defined between said end panel and said open end of said case, a width defined between said side panels of said case and a thickness defined between said top and bottom panels of said case;said length of said case being between about three times and about four times greater than said width of said case;an elongate generally cylindrical shaft having a pair of opposite ends and having a longitudinal axis extending between said ends of said shaft;said shaft being positioned in said open end of said case adjacent said top panel of said case, said longitudinal axis of said shaft being extended substantially parallel to said top panel of said case and to a plane in which said open end of said case lies;said ends of said shaft being rotatably coupled to said side panels of said case to permit rotation of said shaft about said longitudinal axis of said shaft;one of said ends of said shaft being rotatably coupled to one of said side panels of said case, the other of said ends of said shaft being rotatably coupled to the other of said side panels of said case;said shaft having a plurality of resiliently flexible bristles outwardly radiating therefrom, said bristles being arrange in a row extending between said ends of said shaft and substantially parallel to said longitudinal axis of said shaft;said top panel of said case having a generally rectangular cutout adjacent said open end of said case, said cutout of said top panel being positioned about equidistant from said side panels of said case;said shaft having a generally rectangular tab coupled thereto, said tab being extended radially outwards from said shaft in a direction generally diametric to the location of said bristles on said shaft;said tab being positioned about equidistant from said ends of said shaft and said side panels of said case;said tab being aligned with said cutout to permit extension of said tab into said cutout; andsaid shaft being rotatable to a position when said bristles of said shaft extend into said open end of case and are in contact with an adjacent face of said block in said case such that said bristles brush dust and debris off of the adjacent face of the block when said shaft is rotated and when said block is moved in and out of space of said case through said open end of said case.