Aeronautics and astronautics – Kites
Patent
1977-11-14
1978-11-07
Barefoot, Galen L.
Aeronautics and astronautics
Kites
290 42, 290 55, 416 8, 416 64, B64C 3106
Patent
active
041241827
ABSTRACT:
Method and apparatus using parakites, or modified parachutes, for capturing wind energy and for converting the consequent wind-induced linear motion to shaft rotation. The parakite apparatus includes a plurality of trains of parakites, with each train comprising a power line having a plurality of serially coupled parakites secured thereto. The power lines are of sufficient length to allow the parakites to reach an altitude above the earth at which prevailing winds are stronger and more uniform than at the earth's surface. Each train is secured at its earthbound end to a drum or windlass selectively rotatable in both clockwise and counter-clockwise directions to either reel in the power lines attached thereto, or to enable the power lines to be pulled upwardly and outwardly by the action of the winds on the parakites. Provision is made, including canopy lines, to selectively collapse the parakites on selected power lines to facilitate the reeling-in procedure. Gearing is provided to translate the rotational movement of each drum to a power takeoff shaft as the drum is rotated by the outward motion of the power line. Unique pulley assemblies are provided to guide the lines during winding and unwinding. The resulting shaft output is utilized to provide energy as, for example, by the operation of standard electrical generators, or air compressors.
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