Mobile toy with zero-gravity system

Details Mobile toy with zero-gravity system Mobile toy with zero-gravity system

1991-05-03

1993-03-16

Muir, David N.

Amusement devices: toys

Operated by relatively moving fluid or pressure differential

Including motorized fan

446431, 446435, 180164, 180901, A63H 3340, A63H 1700, B60B 3900

Patent

active

051940329

ABSTRACT:
A mobile toy including at least one vacuum generating assembly mounted on a chassis and including an impeller with the axial intake end thereof positionable closely adjacent a support surface whereby at least a major portion of the radial discharge from the impeller flows radially outward and along the support surface to define a fluidic seal about a central zone wherein a negative pressure is maintained. The impeller will preferably mount with a cylindrical sleeve. The mobile device is propelled by driven traction wheels.

REFERENCES:
patent: 3050146 (1962-08-01), Crim
patent: 3189115 (1965-06-01), Rethorst
patent: 3208543 (1965-09-01), Crowley
patent: 3268022 (1966-08-01), Gustafson
patent: 3276529 (1966-10-01), Latimer-Needham
patent: 3747726 (1973-07-01), Walter
patent: 3810515 (1974-05-01), Ingro
patent: 3887030 (1975-06-01), Fitzgerald et al.
patent: 4299301 (1981-11-01), Janin
patent: 4718501 (1988-01-01), Lawler

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