Patent ID: 7748520

Claim:
A conveyor, comprising: a) a pair of laterally spaced side walls extending in a lengthwise direction of a conveyor pathway, each said side wall having an inside surface facing said pathway and an outside surface facing away from said pathway; b) a plurality of driven roller assemblies mounted on said side walls in spaced relationship and at uniform height along the lengthwise direction of said pathway, each said driven roller assembly comprising: i) a center shaft mounted in the side wall so said center shaft is fixed against rotation and projects perpendicularly inward from the inside surface of the side wall, said center shaft being characterized by having a socket head; ii) a driven pulley having an outer flange, an inner axial bore of a size permitting said driven pulley to slide axially over the center shaft, said driven pulley being mounted on said center shaft in a manner allowing rotation of said driven pulley; iii) a roller carried on said driven pulley for rotation therewith to move articles resting on said roller down said pathway, said roller having a recess for engaging a catch on the driven pulley to hold the roller securely; and c) a drive system including an endless drive belt engaged with said driven pulleys to effect rotation thereof.