Patents by Inventor Seppo A. Yliselä

Seppo A. Yliselä 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).

  • Roll cover
    Patent number: 6409645
    Abstract: A covered roll structure employed in the manufacture of a paper machine roll comprises a core roll having a substantially cylindrical outer surface, a sleeve of removable material surrounding the core roll outer surface, a sleeve of compressible material surrounding the sleeve of removable material, and a sleeve of polymeric material surrounding the sleeve of compressible material and the sleeve of removable material.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: June 25, 2002
    Assignee: SW Paper Inc.
    Inventors: Jan A. Paasonen, Seppo A. Yliselä