Patents by Inventor Gerald P. Andersen

Gerald P. Andersen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5795251
    Abstract: Batting practice apparatus includes a variable speed motor connected to a rotatable shaft by a belt, and the rotatable shaft includes a pair of arms extending outwardly from the shaft. At the outer ends of the arms are cords connected to the shaft, and balls are secured to the outer ends of the cords. The motor is a variable speed motor, and the motor rotates the shaft to rotate the arms and the balls. The shaft is secured to a base, and the base is tiltable so that the arms may move in a tilted plain, as desired, to provide different orientations of the balls to a user practicing batting with the apparatus.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: August 18, 1998
    Inventor: Gerald P. Andersen