초록 ▼

An aerodynamic device having a concave-convex disk member with a rim and a substantially flat portion terminating in a downwardly curved portion adjacent the rim forming an upper convex surface with vanes on the disk to effect outward air flow in response to rotation of the device. A device with the

An aerodynamic device having a concave-convex disk member with a rim and a substantially flat portion terminating in a downwardly curved portion adjacent the rim forming an upper convex surface with vanes on the disk to effect outward air flow in response to rotation of the device. A device with the disk having an air opening in the flat portion and a second disk member within the first disk member with the periphery of the second disk member adjacent and spaced from the rim with an air discharge aperture therebetween, said disk members having ribs therebetween for effecting air flow outwardly in response to rotation thereof for providing increased lift to the device.

대표청구항 ▼

An aerodynamic device adapted to provide an upwardly resulting force thereon through rotation of the device about a longitudinal axis thereof comprising: (a) a first disk member having a central portion and a substantially flat circular surface area whose outer boundary is defined by a predetermined

An aerodynamic device adapted to provide an upwardly resulting force thereon through rotation of the device about a longitudinal axis thereof comprising: (a) a first disk member having a central portion and a substantially flat circular surface area whose outer boundary is defined by a predetermined radius, said central portion having an air inlet opening therethrough; (b) said first disk member having a rim circumscribing said flat circular surface area; (c) a surface of curvature extending from said boundary and curving downwardly to the point of juncture with said rim to form an upper convex surface and a lower concave surface of the first disk member; (d) a second impervious disk member spaced apart by means from said first member concave surface such that an outer periphery thereof is spaced radially inwardly of said rim defining an annular discharge aperture therebetween; (e) spacer means comprising a plurality of radially spaced impeller vanes positioned between said first disk member concave surface and said second disk member and substantially extending outwardly from said air inlet opening to said discharge aperture; said vanes defining therebetween a plurality of air passages from said air inlet opening to said air discharge aperture such that upon rotation of said device air between said first disk member and said second disk member is urged outwardly by said vanes and discharged downwardly through said air discharge aperture thereby producing a resultant upward force on said device.