Oscillating ball throwing machine

Details Oscillating ball throwing machine Oscillating ball throwing machine

2005-11-22

2008-11-04

Ricci, John (Department: 3711)

Mechanical guns and projectors

Projectile impelled by coacting wheels

Reexamination Certificate

active

07445003

ABSTRACT:
A ball throwing machine for throwing projectiles, such as tennis balls or baseballs, includes a yoke assembly for projecting balls and a motor assembly for providing both nominal vertical throwing as well as oscillating vertical movement of the yoke assembly. The machine provides fine variations in the vertical trajectories of the balls being thrown and preferably eliminates the need for complicated electronic circuit controls and/or mechanical components.

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http://mastersports.com/princeprodigy.html.
http://playmatetennismachines.com/genie.htm.
http://members.aol.com/NPerry3089/playmatecat.html.

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