Patents by Inventor Walthorst Herwig

Walthorst Herwig 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).

  • Planing machine for underground mining with a cutter in the transition _range from longwall to drift, particularly for a simultaneously _mined drift
    Patent number: 4477119
    Abstract: A mining apparatus comprises a planing device which is movable along a longwall to the drift and has a longwall conveyor which extends alongside it and is deflected into the drift for the removal of the cutaway material. A cutter is operable in the transition between the longwall and the drift and includes a rotatable shaft which is rotatable on a conveyor in the transition between the longwall and the drift and includes an outer arm which carries a rotatable cutting wheel which is moved by the swivel arm through the cutting zone at the transition between the longwall and the drift. The swivel arm is pivotable on a bearing shaft which carries a chain wheel which is driven from a chain drive which operates a plane cutter which is movable along the longwall. The chain drive includes a chain wheel which is rotatable with the bearing shaft and is connected by a separate cutter chain drive which extends through the swivel arm to a chain wheel affixed to the shaft of the cutter wheel.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: October 16, 1984
    Assignee: Halbach & Braun Maschinenfabrik GmbH & Co.
    Inventors: Gert Braun, Ernst Braun, Walthorst Herwig