Tennis practice device having pneumatic ball projector

Details Tennis practice device having pneumatic ball projector Tennis practice device having pneumatic ball projector

1974-03-01

1976-11-02

Pinkham, Richard C.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

124 56, 124 51A, 302 2R, 272 3, 124 81, A63B 6900

Patent

active

039892450

ABSTRACT:
An instant tennis game simulating a real game of tennis is presented. A pneumatic tennis ball delivery machine replaces the normal opponent. The court is slightly crowned and has sloping gutters so that all balls are automatically, gravity-returned to the machine. Solenoid controlled, motor-spun rollers permit simulation of various types of spins. Ball trajectory from the machine is controlled by barrel angle, vertical and horizontal. The ball machine control system allows for repetition of one "shot condition" endlessly or a completely random variety of shots as directed by a programmed mini-computer or manually set "user controls," a program, or the equivalent.

REFERENCES:
patent: 2087575 (1937-07-01), Littell et al.
patent: 2182369 (1939-12-01), Barron
patent: 2626312 (1953-01-01), Clark et al.
patent: 2823034 (1958-02-01), Bingham, Jr.
patent: 2944816 (1960-07-01), Dixon
patent: 3467073 (1969-09-01), Rhodes
patent: 3563544 (1971-02-01), Hedrick
patent: 3567223 (1971-03-01), Gentiluomo
patent: 3640263 (1972-02-01), Rhodes

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