Patent ID: 6093090
Filing Date: 2000-07-25
Classification: B24B

Abstract:
A reversible clamping hub for a reversible rotary power tool comprising:a) a motor shaft having an opening in one end, the motor shaft having an external thread on the outside of the motor shaft, and an internal thread in the opening, the internal thread being threaded in a direction opposite to the external thread,b) a hollow sleeve having an internal thread at a first end to engage the external thread of the motor shaft,c) a rotary tool wheel with a center hole,d) a wheel retainer with a flange on a distal end thereof, ande) a screw having an external thread to engage the internal thread of the motor shaft,wherein the internal thread of the sleeve engages the external thread of the motor shaft, the wheel retainer is inserted through the tool wheel, and the screw is inserted through the wheel retainer, the tool wheel, and the sleeve and the external thread of the screw engages the internal thread in the opening of the motor shaft.