Patents by Inventor Franz Beierlein

Franz Beierlein 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).

  • Internal vibration device with variable vibration amplitude
    Patent number: 6808384
    Abstract: The invention relates to an internal vibration device having an electrical motor mounted in a vibrating unit housing and having a rotating device comprising an out of-balance mass that is also mounted in the vibrating unit housing. The invention is characterized in that eccentricity of a center of gravity of the out-of-balance mass can be varied relative to the axis of rotation of said out-of-balance mass depending on the direction of rotation of the electrical motor. Said internal vibration device is suitable both for compacting unset concrete and for distributing concrete in the formwork.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: October 26, 2004
    Assignee: Wacker Construction Equipment AG
    Inventors: Peter Jordan, Franz Beierlein, Johann Schindlbeck