Mechanical guns and projectors – Projectile impelled by coacting wheels
Patent
1999-10-26
2000-12-26
Ricci, John A.
Mechanical guns and projectors
Projectile impelled by coacting wheels
F41B 400
Patent
active
061642711
ABSTRACT:
The ball throwing machine of this invention includes a vertical base plate mounting a wheel support plate for pivotal movement about a pivot axis which defines an arcuate slot in the base plate through which a clamp bolt extends from the wheel support plate. The wheel support plate mounts top and bottom pneumatic tired wheels for rotation to grip a ball between them and project it forward. An electrical control circuit affords adjustment of wheel rotational speed by a single rotary switch and also allows selection of a variety of types of pitches by a single rotary switch. The electrical circuit also provides for the setting of a differential rotational speed between the top and bottom wheels, for optimum quality of pitching control, and also provides for limiting the minimum and maximum wheel rotating speeds to achieve realistic pitching speed range.
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patent: 4760835 (1988-08-01), Paulson et al.
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patent: 5125653 (1992-06-01), Kovacs et al.
patent: 5437261 (1995-08-01), Paulson et al.
patent: 5464208 (1995-11-01), Pierce
Heinsch Paul A.
Kerr James A.
Paulson Kerry K.
Ricci John A.
The Jugs Company, Inc.
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