Airfoil

Details Airfoil Airfoil

1996-09-03

1997-11-25

Graham, Mark S.

Amusement devices: toys

Aerodynamically supported or retarded

446 45, 473569, A63H 2700

Patent

active

056905335

ABSTRACT:
An airfoil is disclosed that is adapted to be launched into the air using an elastomeric band. The device includes a nose portion that is generally in the shape of an elongate ellipsoid that has a front end and a rear end. An elongate rib depends from the rear end of the nose portion in a dkection generally along the long axis of the nose portion, and a pair of generally planar wings depend from the rib and from the rear of the nose portion. The plane of the first wing portion is generally parallel to and spaced apart from the plane of the second wing portion, and both wing portions have a tapered outer edge. The taper of the outer edge of the first wing portion is oppositely disposed to that of the second wing portion.

REFERENCES:
patent: D263247 (1982-03-01), Harris
patent: 2899773 (1959-08-01), Lockwood
patent: 2921404 (1960-01-01), Lescher
patent: 3399487 (1968-09-01), Siegler
patent: 3665641 (1972-05-01), Henderson
patent: 3691674 (1972-09-01), Thompson
patent: 3947993 (1976-04-01), Hoppe
patent: 5013277 (1991-05-01), Hufeld
patent: 5284454 (1994-02-01), Randolph
patent: 5403221 (1995-04-01), Savage

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