Flying toy with radial airfoils

Details Flying toy with radial airfoils Flying toy with radial airfoils

1992-04-27

1993-12-14

Hafer, Robert A.

Amusement devices: toys

Aerodynamically supported or retarded

Spinning disc

273425, A63H 2700

Patent

active

052697169

ABSTRACT:
A rotating flying toy comprising a circular airfoil (12) and a plurality of radial airfoils (13). Said radial airfoils (13) extend, at a uniform angle, from a central hub (14), which is elevated in profile above the circular airfoil (12). When tossed through the air in different specific ways, the device performs various unique aerodynamic maneuvers involving its tendency to roll over in a predictable manner, during flight.

REFERENCES:
patent: 100466 (1870-03-01), Goodwin
patent: D214577 (1969-07-01), Mueller
patent: 3082572 (1963-03-01), Knox
patent: 3359678 (1967-12-01), Headrick
patent: 3742643 (1973-07-01), Keith
patent: 3955817 (1976-05-01), Davis
patent: 4104822 (1978-08-01), Rodgers
patent: 4132029 (1979-01-01), Thompson et al.
patent: 4216611 (1980-08-01), Psyras
patent: 4506894 (1985-03-01), Laux
patent: 5030157 (1991-07-01), Silvergate

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