Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1985-08-12
1986-04-22
Pinkham, Richard C.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
273 26B, 434247, A63B 7102
Patent
active
045837333
ABSTRACT:
A batting practice trainer includes a laser oscillator placed in a sensor unit configured to resemble a home plate. Three beams are emitted from the sensor unit in a predetermined pattern, so that the height, speed, and angle of elevation of a swinging bat may be calculated from the passage of the bat across the beams. This is accomplished without interferring with the batters' swing or substantially modifying the bat.
REFERENCES:
patent: 3117451 (1964-01-01), Ray et al.
patent: 4150825 (1979-04-01), Wilson
patent: 4306722 (1981-12-01), Rusnak
patent: 4367009 (1983-01-01), Suzki
patent: 4461477 (1984-07-01), Stewart
Hashimoto Tsutomu
Ito Sho
Kasahara Kumio
Nakaguchi Tomoyuki
Nakahara Shojiro
Lastova MaryAnn Stoll
Mitsubishi Denki & Kabushiki Kaisha
Pinkham Richard C.
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