Gliding ring

Details Gliding ring Gliding ring

1984-05-10

1985-12-24

Hafer, Robert A.

Amusement devices: toys

Aerodynamically supported or retarded

Spinning disc

273425, 244 34A, A63H 2700

Patent

active

045603588

ABSTRACT:
A gliding ring toy comprised of a closed-figure airfoil with a narrow separator lip on the outer perimeter of the upper surface in order to balance the aerodynamic lift, fore and aft, over a wide range of velocities in gliding flight.

REFERENCES:
patent: 248901 (1881-11-01), Wetherill
patent: D253004 (1979-09-01), Meckstroth
patent: 678265 (1901-07-01), Low
patent: 708519 (1902-09-01), Bradshaw
patent: 1986937 (1935-01-01), MacGregor
patent: 3566532 (1971-03-01), Wilson
patent: 3580580 (1971-05-01), Wark et al.
patent: 3590518 (1971-07-01), LeBaron
patent: 3594945 (1971-07-01), Turney
patent: 3724122 (1973-04-01), Gillespie, Sr.
patent: 3765122 (1973-10-01), English
patent: 4104822 (1978-08-01), Rodgers
patent: 4174834 (1979-11-01), DeMartino
patent: 4279097 (1981-07-01), Walker
patent: 4307535 (1981-12-01), Martin
patent: 4456265 (1984-06-01), Adler

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