Patent Number: 6,332,852

Title: Variable ratio drive system

Abstract: A variable ratio drive system including at least one variable diameter sprocket is described herein. The variable diameter sprocket includes a support and at least three radially movable sprocket portions mounted to the support. A diameter changing mechanism is provided to selectively move the sprocket portions.

Inventors: Allard; John (Saint-Jean-des-Piles, CA)

Assignee: 3561020 Canada Inc.

International Classification: B62M 9/00 (20060101); B62M 9/08 (20060101); F16H 009/10 ()

Expiration Date: 12/25/2018