Patents by Inventor Fritz Kleibohmer

Fritz Kleibohmer 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).

  • Roof supports for a mining installation
    Patent number: 5104267
    Abstract: A mine roof support or lining frame for use in mine workings with thick inclined seams has hydraulic props mounted between an inclined goaf shield and a floor sill. The floor sill is coupled with a shifting mechanism to a frame supporting a conveyor extending along a working face of the seam. Mineral from a region of the seam extending over the support passes through an opening in the shield onto a chute which takes an inclined disposition parallel to the conveyor. Material transferred to the chute discharges in the direction of transport of the conveyor.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: April 14, 1992
    Assignee: Gewerkschaft Eisenhutte Westfalia GmbH
    Inventors: Gunter Lagodka, Fritz Kleibohmer, Ulrich Hilker