Patent ID: 6626745
Filing Date: 2003-09-30
Classification: B24B,B24D,Y10T

Abstract:
A drill sharpener comprising:a housing; a motor disposed in said housing having a motor-shaft extending therefrom; a grinding wheel assembly comprising a grinding wheel operatively coupled to said motor shaft; a drill mounting chuck; a pair of peripheral cams carried by the barrel portion of the chuck; said housing defining at least one chuck receiving port having a chuck receiving sleeve therein to position the chuck and a drill in operative relation to a grinding surface of the grinding wheel; wherein said grinding wheel is made of steel and said grinding surface comprises diamond plated to said grinding wheel; wherein said motor operates at speeds on the order of 15,000 revolutions per minute and wherein a size of said grinding wheel is selected such that, when operating with said motor, a cutting rate comparable to industrial sharpeners is achieved.