Patents by Inventor Josef Bartscherer

Josef Bartscherer 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).

  • Method of dewatering slurries using leaf filters (filter presses)
    Patent number: 6514418
    Abstract: The invention relates to a process for dewatering sewage sludges using plate filters, wherein the flocculated sewage sludge treated by means of organic polymer flocculation aids and optionally other auxiliary agents is separated from the major amount of water of the flocculated sewage sludge on a plate filter by means of hydrostatic filtration, whereafter the partially dewatered sewage sludge is subjected to pressure filtration. The plate filters employed have filtrate outlet systems permitting filtrate discharge at a flow rate of 1.0 m/s at maximum. By conducting the process in this way, the dewatering capacity is substantially increased.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: February 4, 2003
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Josef Bartscherer, Hans Georg Hartan, Winfried Held, Fedor Ivanovitch Lobanov, Stanislav Vladimirovitch Chramenkov, Vladimir Alexandovich Sagorskij