Abstract: A tennis ball collection device includes a rotating drum that rotates at a higher speed than the rotation of the wheels that carry the device. Additionally, the drum rail that operates in connection with the rotating drum to lift a ball off of a ground is allowed to move in the horizontal direction. This back and forth movement is facilitated by a spring that otherwise biases the drum rail forward to a rest position.

Abstract: A tennis ball collection device includes a rotating drum that rotates at a higher speed than the rotation of the wheels that carry the device. Additionally, the drum rail that operates in connection with the rotating drum to lift a ball off of a ground is allowed to move in the horizontal direction. This back and forth movement is facilitated by a spring that otherwise biases the drum rail forward to a rest position.

Abstract: A tennis ball throwing machine includes a processor mounted on the machine. The processor is operatively connected to a first receiver that is adapted to communicate with the processor and to receive instructions regarding the operation of the machine. A remote controller includes a first transmitter for transmitting signals from the remote controller regarding the operation of the machine. The remote controller includes an interface having start/stop control of the machine. The remote controller has two-way communication with the ball machine processor.

Abstract: A tennis ball throwing machine includes a processor mounted on the machine for controlling the operation of the machine. The processor is adapted to operatively communicate with a portable memory device. The portable memory device is adapted to provide operating instructions to the machine and to save a record of the actions of the machine.

Abstract: A tennis ball throwing machine includes a support frame for carrying the machine, a pair of round pitching wheels, and a hopper mounted on the frame and above the pitching wheels. A ball chute connects the bottom of the hopper and a launch point that is proximate the point where the pitching wheels are closest together. The ball chute includes a plurality of guide rails that are spaced apart and open between them such that the guide rails are separated but are close enough together that they may support and carry a ball down the chute. The open rails allow for dirt and other debris to fall through the machine and away from the ball chute.

Abstract: A tennis ball collection device includes a rotating drum that rotates at a higher speed than the rotation of the wheels that carry the device. Additionally, the drum rail that operates in connection with the rotating drum to lift a ball off of a ground is allowed to move in the horizontal direction. This back and forth movement is facilitated by a spring that otherwise biases the drum rail forward to a rest position.