Patent ID: 8424676

Claim:
A compound sprocket comprising: at least one rotatable member including an outer sprocket element and an inner sprocket element symmetrically disposed relative to a central axis of rotation of said at least one rotatable member; said outer sprocket element including a plurality of spaced, uniformly radially-oriented teeth on an outer cylindrical surface thereof for engaging a conveyor belt, said outer sprocket element further including a plurality of pockets formed on an inner cylindrical surface thereof; said inner sprocket element having a plurality of protrusions on an outer cylindrical surface thereof, said protrusions corresponding in number and position to said pockets formed on said inner cylindrical surface of said outer sprocket element and received therein; and a plurality of resilient connecting elements corresponding in number to said plurality of pockets, only one said resilient connecting element disposed in each said pocket and biased between a wall of said pocket of said outer sprocket element and one of said protrusions of said inner sprocket element.