The exemplary embodiment of the present invention provides a device for converting human power to electrical power. The exemplary device comprises: a plurality of gear wheels (e.g., 1, 2, 3, 4, 5 and 6) interconnected with a plurality of interconnection means (e.g., 12, 13, and 14); a first axle (9),...http://www.google.ca/patents/US7253534?utm_source=gb-gplus-sharePatent US7253534 - Method and apparatus for converting human power to electrical power
