Patents by Inventor Mario Dielefeld

Mario Dielefeld 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).

  • Continuous track mounted, self propelled open cast mining apparatus
    Patent number: 5730501
    Abstract: The open cast mining apparatus comprises two sets of running gear between which a cutting drum is provided on a chassis. The conveyor tract is formed by an axial discharge conveyor inside the cutting drum, a vertical worm conveyor and a conveyor in the discharge jib or in the connecting bridge. The latter is supported on a loading carriage travelling parallel to a working face belt. The cutting drum is so designed that the mining machine can excavate and pick up material to be conveyed in both travelling directions.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: March 24, 1998
    Assignee: Man Takraf Fordertechnik GmbH
    Inventors: Hartmut Grathoff, Mario Dielefeld