Swing measuring device

Details Swing measuring device Swing measuring device

1983-07-01

1986-03-25

Pinkham, Richard C.

Amusement devices: games

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

Target

273 26B, 273186A, 273186C, 434247, A63B 7102

Patent

active

045778639

ABSTRACT:
The height and inclination of a batter's swing plane are measured by a batting practice device shaped like a home plate and including a laser source and photosensors for detecting laser light reflected by the bat when swung over the plate.

REFERENCES:
patent: 3117451 (1964-01-01), Ray
patent: 4150825 (1979-04-01), Wilson
patent: 4306722 (1981-12-01), Rusnak
patent: 4367009 (1983-01-01), Suzki
patent: 4461477 (1984-07-01), Stewart

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