Table tennis ball projector

Details Table tennis ball projector Table tennis ball projector

1996-04-01

1997-03-04

Brown, Theatrice

Mechanical guns and projectors

Projectile impelled by coacting wheels

F41B 1500

Patent

active

056071515

ABSTRACT:
A table tennis ball projecting apparatus which can be used as the ball propelling mechanism of a table tennis robot. Its construction is such that balls entering its entrance port sequentially, will be ejected by a motor rotated rubber-rimmed thrust wheel. Two smaller rubber-rimmed wheels each on its own smaller motor, provide clockwise or counterclockwise spin on the ejected ball. The lighter spin-producing wheels and motors facilitate the production of rapid spin direction and magnitude changes on consecutively ejected balls thereby closely simulating practice between two humans.

REFERENCES:
patent: 3604409 (1971-09-01), Doeg
patent: 3724437 (1973-04-01), Halstead
patent: 4712534 (1987-12-01), Nozato
patent: 5046476 (1991-09-01), Nozato
patent: 5125653 (1992-06-01), Kovacs
patent: 5437261 (1995-08-01), Paulson

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