Games using tangible projectile – Playing field or court game; game element or accessory... – Practice or training device
Patent
1997-02-26
1999-03-16
Brown, Theatrice
Games using tangible projectile
Playing field or court game; game element or accessory...
Practice or training device
A63B 6940
Patent
active
058822704
ABSTRACT:
At improved centrifugal batting practice machine of the type having a tethered ball that is repeatedly revolved past a hitter by a generally horizontal rotating arm is disclosed. The rotating arm is mechanically coupled to a vertically disposed, motor-driven shaft within a vertical frame that is fixedly attached to a base support. A height adjustment mechanism is interposed between the motor-driven shaft and the rotating arm to permit incremental adjustment thereof in a vertical plane such that the ball is presented to a batter at the desired vertical height. The batting practice machine includes functional features that produce a random pattern in the pitches delivered by batter. In one embodiment the batting practice machine is placed in a condition of imbalance by the removal of detachable pads or feet from the base support to produce a random pattern in the pitches. In another embodiment the rotating arm is pivotally attached to the upper end of the rotating shaft in a counterbalanced condition to permit pivoting movement of the arm in the vertical plane as it is simultaneously rotated in the horizontal plane. In another alternative embodiment the batting practice device is adapted for manual operation by a batting coach or another player without the supporting frame and motor.
REFERENCES:
patent: 1962087 (1934-06-01), Cone
patent: 2976040 (1961-03-01), Bales
patent: 3380738 (1968-04-01), Papp
patent: 3588104 (1971-06-01), Griffin
patent: 3637208 (1972-01-01), Allred
patent: 3897057 (1975-07-01), Pennington
patent: 5018729 (1991-05-01), Wilkerson
patent: 5083775 (1992-01-01), Heard
patent: 5184816 (1993-02-01), Lunsford
Brown Theatrice
Rey Clifford F.
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