Patents by Inventor Ronald W. Rubemeyer

Ronald W. Rubemeyer 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).

  • Vibrating deep ripper
    Patent number: 4850434
    Abstract: Tilling apparatus, particularly for deep ripping of the soil, adapted to be towed by a tractor having teeth for penetrating the ground, each tooth being hollow, having an unbalanced rotor housed therein adjacent its lower end, a motor mounted on the side of the tooth adjacent its upper end, and drive means housed in the tooth driven by the motor and operable to drive the rotor for causing vibration of the lower end portion of the tooth.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: July 25, 1989
    Assignee: Peabody Coal Company
    Inventors: Ronald W. Rubemeyer, James L. Gibson