Patent ID: 6428436
Filing Date: 2002-08-06
Classification: B65G,F16H

Abstract:
A drive sprocket for use with a belt module having a lower surface, and a pocket formed in the lower surface having a drive surface and a recessed surface, said sprocket comprising;a base having an outer periphery and rotatable about an axis; a plurality of teeth extending radially from said outer periphery, wherein at least one tooth includes a drive surface for engaging a module pocket drive surface, and a top joined to said drive surface; and relief areas between said teeth for receiving particles falling from the belt, wherein each of said relief areas include a bottom defined by opposing axially facing sides extending toward said base, and at least one of said axially facing sides is an angled surface extending axially outwardly and radially inwardly toward said base from said bottom of said at least one of said relief areas.