Patent ID: 9339911
Filing Date: 2016-05-17
CPC Classification: B24B

Claim Text:
1. A method for sharpening a blade, comprising: providing an automatic sharpening apparatus having a housing with an elongate opening defined therein, providing a lead screw extending along the housing and in operative engagement with a grinding mechanism, the lead screw having a first end attached to the housing and a free second end opposite the first end, a first motor mounted on the grinding mechanism, a second motor mounted on the second free end of the lead screw, placing a blade inside the elongate opening, tightening the blade between self-centered clamp holders, the first motor rotating a grinding wheel, the rotating grinding wheel engaging the blade, the second motor rotating the lead screw to move the grinding mechanism along the lead screw so that the grinding wheel automatically moves along the blade by following a contour of the blade, while the grinding wheel moving along the blade, a counter-weight providing a counter-weight to the grinding wheel, sharpening the blade while the blade being stationary inside the elongate opening of the housing.