Batting practice machine

Details Batting practice machine Batting practice machine

1989-09-05

1991-05-28

Brown, Theatrice

Amusement devices: games

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

Target

273 29A, A63B 6940

Patent

active

050187295

ABSTRACT:
A batting practice machine comprising a generally flat horizontal base; a vertical frame; an adjustable, rotatable, outward extending arm; a line secured to the arm; a ball secured to the line; and a motor and drive mechanism for rotating the arm in a generally horizontal circle, thereby moving the ball along a horizontal circular path for repeated presentation to a batter.

REFERENCES:
patent: 2058277 (1936-10-01), Walther
patent: 2134328 (1938-10-01), Dickson
patent: 3333847 (1967-08-01), Pennington
patent: 3408070 (1968-10-01), Gonzales
patent: 3637208 (1972-01-01), Allred
patent: 3885790 (1975-05-01), Parr
patent: 4555110 (1985-11-01), Hai-Ping
patent: 4647042 (1987-03-01), Bruce
patent: 4679790 (1987-07-01), Ham
patent: 4815735 (1989-03-01), McClenny

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