Patents by Inventor Hermann-Josef Spoelgen

Hermann-Josef Spoelgen 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: 6852220
    Abstract: A filter press for filtering suspensions includes plural parallel filter plates that can be displaced relative to one another. In a filtering position, the filter plates are compressed to a package that forms a filter chamber provided with at least one filter cloth between neighboring filter plates. In a discharge position, neighboring filter plates are moved apart by a discharge distance so that a filter cake adhering to the filter cloth can be discharged. Every filter chamber is provided with at least one filling element for feeding the suspension to the filter chamber. The filling element is disposed on a protruding part that protrudes beyond a plate body face or contour and within a sealing edge on the periphery of the filter plates. In the filtering position, the filling elements are sealingly clamped between neighboring filter plates and form a suspension supply channel that extends through the filter plate package.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: February 8, 2005
    Assignee: Outokumpu Oyj
    Inventors: Karl Grafen, Hermann-Josef Spoelgen