Patents by Inventor Bernd Kumor

Bernd Kumor 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).

  • Longwall mineral mining installation
    Patent number: 4389072
    Abstract: A mineral mining installation comprises a longwall conveyor, a plough movable to and fro along a guide fixed to the face side of the longwall conveyor, and a drive station at one end of the longwall conveyor. The drive station includes a drive frame supporting drive means for driving the longwall conveyor. A support beam is provided at the goaf side of the drive station. The support beam extends substantially parallel to the drive frame. A floor plate extends beneath the drive frame. The goaf-side end portion of the floor plate is supported on the support beam by means of a lifting device, whereby the goaf-side end portion of the floor plate can be moved up and down relative to the support beam by the lifting device.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: June 21, 1983
    Assignee: Gewerkschaft Eisenhutte Westfalia
    Inventors: Horst Linke, Helmut Erwien, Herbert Beyer, Bodo Kerklies, Bernhard Wleklinski, Rudolf Mainusch, Dieter Grundken, Bernd Kumor, Ulrich Mohn