Patents by Inventor Wilfried Schürmann

Wilfried Schürmann 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).

  • Withdrawal device
    Patent number: 6261049
    Abstract: A device for withdrawing debris, for example compost material, stored on a sliding base with longitudinally displaceable boards. A mobile driving unit having at least one driving device can be coupled/uncoupled to at least one section of the sliding base boards in at least one coupling position. The sliding base boards can be at least partially guided into and out of the driving unit. Once guided in, the ends of the sliding base boards remain in the driving unit during the longitudinal back and forth motion of the sliding base boards.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: July 17, 2001
    Assignee: Horstman GmbH & Co. KG
    Inventors: Siegfried Büschenfeld, Wilfried Schürmann