Abstract: The present invention consists of a conversion kit for converting a pitching machine of the type having at least one wheel into a video pitching machine. The kit includes: a projection screen; projector; ball injector; and control system. The projection screen, which is adapted to be positioned between the pitching machine and a batter, includes an aperture through which a ball may be delivered to the batter by the pitching machine. The video projector must be able to project the video image of an actual pitcher onto the projection screen. The injector is adapted to hold a ball in a queued position immediately behind the pitching machine and inject the ball into the pitching machine to be propelled toward the batter in synchronization with the video image. The injector includes an electric solenoid for injecting the ball into the pitching machine.

Abstract: The present invention consists of a conversion kit for converting a spring-actuated pitching machine of the Iron Mike type to a video pitching machine, i.e., a pitching machine that includes a video projection screen on which the video image of an actual pitcher is displayed in synchronization with the release of a ball from the pitching machine. The kit includes a projection screen; a projector; a clutch motor unit; a relay unit; and a control unit. The projection screen, which is adapted to be positioned between the pitching machine and a batter, includes an aperture through which a ball may be delivered to the batter by the conventional spring-actuated pitching machine. The video projector must be able to project the video image of an actual pitcher onto the projection screen. The clutch motor is adapted to hold a ball in a queued position within the spring-actuated pitching machine and, upon release, propel the ball toward the batter in synchronization with the video image.