Patent ID: 8618388

Claim:
A shaft and bearing assembly, comprising: a shaft comprising at least one circumferential depressed region; a first one-way bearing disposed on the shaft, the first one-way bearing positioned to facilitate free clockwise rotation of the shaft and to resist free counterclockwise rotation of the shaft when at least a portion of the first one-way bearing is not positioned around the at least one depressed region of the shaft; and a second one-way bearing disposed on the shaft axially displaced from the first one-way bearing, the second one-way bearing positioned to facilitate free counterclockwise rotation of the shaft and to resist free clockwise rotation of the shaft when at least a portion of the second one-way bearing is not positioned around the at least one depressed region of the shaft; wherein the shaft is inhibited from free rotation when at least a portion of the first and second one-way bearings are not positioned around the depressed region of the shaft, is free to rotate counterclockwise when the first one-way bearing is positioned around the depressed region of the shaft, and is free to rotate clockwise when the second one-way bearing is positioned around the depressed region of the shaft.