Patents by Inventor Donald H. Beutner

Donald H. Beutner 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).

  • Patent number: 4290651
    Abstract: The invention concerns a method of surface mining along an elongated pit using a cross-pit conveyor for transferring selected excavated material, such as topsoil, directly across the pit while using a separate overburden excavator to transfer the remaining overburden. The method uses a cross-pit transporter which is supported solely on the working bank, includes a cantilevered conveyor which extends completely across the pit, and is slewable so it can periodically swing to a non-interfering position when passing the other excavator. The method allows the selective replacement of the different overburden materials in accordance with modern reclamation practice.
    Type: Grant
    Filed: April 3, 1979
    Date of Patent: September 22, 1981
    Assignee: Dresser Industries, Inc.
    Inventors: Thomas I. Files, Donald H. Beutner