Patents by Inventor Wilhelm Claessen

Wilhelm Claessen 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: 6919024
    Abstract: The invention relates to a press membrane (9) for a filter plate (1?) of a filter press. Said press membrane consists of a rubber-elastic material and is supported by the filter plate (1?) while supporting a parallel filter cloth (14). An intermediate chamber defined between the press membrane (9) and the filter plate (1?) can be impinged upon with a pressure medium. The aim of the invention is to prevent an overload of the membrane material in the area of the supporting cams (6) and damages of the filter cloth (14) in said areas. To this end, the press membrane (9) is provided with transmission disks (12) in the area of the supporting cams (6), said transmission disks (12) consisting of a substantially harder material than the rubber-elastic material of the remaining press membrane (9) and being vulcanized into the rubber-elastic material.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: July 19, 2005
    Assignee: Outokumpu Oyj
    Inventor: Wilhelm Claessen
  • Patent number: 6754927
    Abstract: A device (1) for detaching a filter cake which adheres to a filter cloth (4) of a filter press, comprising at least two deflection bodies (2, 3) around which the filter cloth (4) extends in an S-shaped manner and which can be moved in an approximately vertical direction, so that the S-shaped deflection brushes essentially completely over the adhering area of the filter cake. In order to achieve a complete detachment even in the case of filter cake which is not fully filtered out it is proposed filter cloth (4) extends in a sliding fashion during a relative movement between the same deflection bodies (2, 3) over a surface of one deflection body (3) and is provided with bend (8) in its course at a longitudinal edge (7) of said deflection body (3).
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: June 29, 2004
    Assignee: Outokumpu Oyj
    Inventors: Wilhelm Claessen, Karl Grafen, Menrad Wesp