Patent ID: 7179141

Claim:
A personal air propulsion device for a person, the device comprising: a backpack with backpack frame; an adjustable shoulder harness affixed to the backpack frame, the shoulder harness removably fitting the person; an internal combustion engine with fuel supply and pull starter mounted to the backpack frame; a pulley system comprising a toothed belt and toothed pulleys, the pulley system connecting the engine to a propeller axle with propeller, whereby the propeller axle turns at twice the revolutions per minute of the engine; adjustment means for the pulley system; an access door centrally disposed in the backpack frame, the access door for accessing the pulley system; an axle front bearing for the propeller axle, the axle front bearing disposed within the backpack frame; a propeller surround surrounding the propeller; a propeller axle stabilizer bearing disposed within a propeller stabilizer, the stabilizer fixedly disposed within the propeller surround; two spaced apart air intake shrouds, each shroud disposed on an opposite side of the backpack frame, each air intake shroud supplying air to the propeller surround; an air intake cone affixed to each shroud, the intake cone enhancing laminar flow of air into the shroud; an air intake screen affixed to each cone; an air outlet cone supplied with air by the propeller surround, the outlet cone beginning with a diameter equal to the propeller surround and gradually decreasing to a smaller diameter; two spaced apart light stalks mounted proximally to a top of the backpack frame and projecting upwardly; a headlight on each stalk; a taillight on each stalk; a backup battery power within each stalk; powering wires from the engine to the light stalks; a spaced apart pair of armrests projecting forward from the backpack frame; a handle on each armrest; a hand operated throttle and a kill switch for the engine on one handle; a light switch on the opposite handle; communicating means between the throttle and kill switch and the engine; communicating wires between the light switch and lights; a pendulum emergency stop device mounted to the backpack frame, whereby a fall by the person kills the engine.