Abstract: A windmill is provided wherein the windmill comprises a central rotating shaft with an upper and a lower end opposite thereto. A blade arm is provided with an inward and an outward end opposite thereto, wherein the inward end of the blade arm is connected to the upper end of the rotating shaft. An aerodynamically shaped foil connects to the outward end of the blade arm. A cam frame connects to the central rotating shaft such that the cam frame remains substantially stationary when the central rotating shaft rotates. An outer tilted cam track connects to the cam frame, and an inner tilted cam track connects to the cam frame and is located inside the outer tilted cam track, wherein an axis of tilt of the outer cam track and an axis of tilt of the inner cam frame are transversely aligned.

Abstract: A fluid delivery nozzle for wireless communication to either an active or a passive device located on a vehicle and for wireless communication from the fluid delivery nozzle to a central location for storage of vehicle data. Upon initiation of a fluid delivery transaction, a communication link is established between a vehicle communication device and the central location and between a fluid container of the vehicle and the fluid delivery nozzle. The information received from the vehicle and container is relayed to the central location to authorize delivery of a fluid to the vehicle. Information is also transferred from the central location back and forth to the fluid delivery nozzle to update and store information regarding the fluid delivery transaction. A keyboard and display are provided on the fluid delivery nozzle to provide an operator interface during the fluid delivery transaction.