Toy helicopter having forwardly inclined rotor shaft

Details Toy helicopter having forwardly inclined rotor shaft Toy helicopter having forwardly inclined rotor shaft

1993-01-19

1994-04-19

Muir, David N.

Amusement devices: toys

Aerodynamically supported or retarded

Including rotary wing

446 45, 446 56, A63H 27127, A63H 2700, A63H 2726

Patent

active

053040902

ABSTRACT:
A catapultable or rocket propelled toy helicopter (100,200) are provided that have foldable rotor blades (16 and 16') and a forwardly inclined rotor shaft surface (8) against which a rotor shaft (9) rests during flight that in combination with a balancing weight (28) enhance the spreading of rotor blades (16 and 16') at the apex of flight and the pitch and forward movement of the helicopter during flight thereafter.

REFERENCES:
patent: 2128747 (1938-08-01), Johnson
patent: 2358379 (1944-09-01), Butcher
patent: 2417267 (1947-03-01), Porter
patent: 3390480 (1968-07-01), Turner
patent: 3862514 (1975-01-01), Ueda
patent: 3968947 (1976-07-01), Schlegel et al.
patent: 4674986 (1987-06-01), Ueda
patent: 4981456 (1991-01-01), Sato et al.
Flying Model Rockets, Estes Catalog, pp. 4, 38, 54, 1993.

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