Patents by Inventor Erich Luttermann

Erich Luttermann 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).

  • Apparatus for screening and/or crushing screen materials
    Patent number: 6237865
    Abstract: Apparatus for screening and/or crushing screen materials, includes a bucket articulated to an excavating machine and swingable about a horizontal rotation axis. The bucket has a back wall formed as a screening bottom and supporting screening shafts provided with screening elements, whereby the screening shafts extend transversely to the rotation axis.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: May 29, 2001
    Assignee: Neuenhauser Maschinenbau GmbH & Co. KG
    Inventors: Erich Luttermann, Josef Többen, Hendrikus Fransen