Aerodynamic device

Details Aerodynamic device Aerodynamic device

1979-08-03

1981-09-15

Mancene, Gene

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273424, A63H 2700

Patent

active

042889421

ABSTRACT:
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.

REFERENCES:
patent: 2822176 (1958-02-01), Robes
patent: 2835073 (1958-05-01), Dame
patent: 3107071 (1963-10-01), Wessels
patent: 3359678 (1967-12-01), Headrick
patent: 3580580 (1971-05-01), Wark
patent: 3613295 (1971-10-01), Everett
patent: 3765122 (1973-10-01), English
patent: 3828466 (1974-08-01), Geiger
patent: 3939602 (1976-02-01), Burke et al.
patent: 4045029 (1977-08-01), Katzmark
patent: 4132031 (1979-01-01), Psyras
patent: 4216611 (1980-08-01), Psyras

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