Toy helicopter

Details Toy helicopter Toy helicopter

1986-02-07

1988-03-01

Yu, Mickey

Amusement devices: toys

Suspended for travel below guide or support means

446232, 446420, 446485, A63H 2102, A63H 2700, A63H 3326

Patent

active

047283114

ABSTRACT:
A toy helicopter is provided having a rotor that gradually accelerates to simulate the start-up of a full-scale helicopter, wherein the gradual acceleration is induced by frictional interaction between the surface of a drive shaft and the surface of a bore formed in the rotor hub. Actuation is accomplished by lifting an actuating shaft which extends from the rotor hub and drive shaft to activate a motor; returning the actuating shaft to its resting position deactivates the toy. The toy also provides a flashing light and audio mechanism to further simulate the operation of a full-scale helicopter.

REFERENCES:
patent: Re31667 (1984-09-01), Knauff
patent: 2411596 (1946-11-01), Shapiro
patent: 2469144 (1949-05-01), Baggott
patent: 2642698 (1953-06-01), Fishburne
patent: 2732656 (1956-01-01), Cohn
patent: 3093929 (1963-06-01), Robbins et al.
patent: 3391488 (1968-07-01), Cook
patent: 3411236 (1968-11-01), Fileger et al.
patent: 3613305 (1971-10-01), Suzuki
patent: 3686790 (1972-08-01), Winston
patent: 3807087 (1974-04-01), Staats et al.
patent: 4610638 (1986-09-01), Iwad et al.

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