System generates electricity from fluid motion using trolleys
Taking an interesting approach to generating electricity from fluid currents (e.g. ocean currents), this patent, issued by the USPTO today uses a set of trolleys mounted to travel around a ringed track. A fin is attached to each trolley for sending it on a repetitive journey around the track. Electricity is generated through interaction of magnetic elements on the track and trolley.
Download United States Patent No. 7,453,166
