Baseball hitting instructional device

Details Baseball hitting instructional device Baseball hitting instructional device

1990-10-29

1991-08-06

Brown, Theatrice

Amusement devices: games

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

Target

273188A, A63B 6900

Patent

active

050370944

ABSTRACT:
A base containing regulatory foot placement devices upon which a hitter stands when hitting a pitched ball. The ball of the back foot is rotated upon a revolving disc as the heel is lifted to clear a small barrier as the foot turns. An adjustable stride regulator prevents an overstride of the front foot, while an adjustable stride guide requires the front foot to reach the proper destination in relation to home plate. A scale records stride length and directional arrows indicate optimal back foot pivot per pitch location.

REFERENCES:
patent: 2189613 (1940-02-01), Paulsen
patent: 3342487 (1967-09-01), David
patent: 3350096 (1967-10-01), Kile et al.
patent: 3372930 (1968-03-01), Sertich
patent: 3466040 (1969-09-01), Sertich
patent: 3815906 (1974-06-01), Hermo
patent: 4225133 (1980-09-01), Kiray
patent: 4322084 (1982-03-01), Reece
patent: 4516772 (1985-05-01), Stratton
patent: 4664375 (1987-05-01), Tetreault
patent: 4932656 (1990-06-01), Pierce

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