Patents by Inventor Sami Silk

Sami Silk 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).

  • Publication number: 20040084160
    Abstract: The present invention relates to the thickening of pulp suspensions. A low consistency pulp suspension is fed to a pre-thickener (10) through an inlet conduit (18). A layer of thickened pulp, formed on a filter surface (22), is pushed along the filter surface by a cleaning member to the discharge end of the pre-thickener and is discharged through the outlet (20). The cleaning member comprises a rotating shaft (30), on which shaft at least one screw thread (32) is fixed so as to leave a free space between the shaft and the screw thread. Essentially non-thickened pulp is allowed to flow through the apparatus via this space.
    Type: Application
    Filed: October 22, 2003
    Publication date: May 6, 2004
    Applicant: ANDRITZ OY
    Inventors: Antero Laine, Risto Ljokkoi, Olavi Pikka, Sami Silk, Harri Qvintus