Patent ID: 7244205
Filing Date: 2007-07-17
Classification: B65G

Abstract:
1. A key sprocket drive system for a conveyor belt, comprising: (a) a drive drum having an outer surface, (b) a securement means, said outer surface of said drive drum adapted to engage said securement means; (c) a contoured collar having an inner surface and an outer surface and adapted to receive said securement means, said contoured collar adapted to engage said outer surface of said drive drum at predetermined positions, said contoured collar providing defined gaps between said inner surface of said contoured collar and said outer surface of said drive drum; and (d) a sprocket member having a generally annular configuration with externally facing teeth at spaced intervals, said sprocket member adapted to receive said securement means; wherein said contoured collar is separate from said sprocket member; and wherein said securement means engages said sprocket member and said contoured collar to secure said sprocket member and said contoured collar to said drive drum, and said teeth engage said conveyor belt; (e) wherein said securement means is a single key system.