Patents by Inventor Willi Requate

Willi Requate 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).

  • Filter module and device for static filtration of fluids with such a module
    Patent number: 7261817
    Abstract: The invention relates to a filter module and an apparatus for the static filtration of liquids using filter cells having deep bed filter layers and using spacer layers. According to the invention the filter module has a stack of n filter cells and n+1 spacer layers for filtrate and at least one channel arranged in the interior of the filter module. In this case n is ?1. The filter cells consist of a draining spacer layer for feed liquid and deep bed filter layers which are arranged in a sandwichlike manner thereto and which are joined to one another at their circumference toward the at least one channel at the rim via a sealing compound and wherein the spacer layers for filtrate are furnished with the sealing compound at the rim on their external circumference.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: August 28, 2007
    Assignee: Sartorius Biotech GmbH
    Inventors: Willi Requate, Ulrich Grummert, Holger Linne, Pachalis Nikoloudis, Ralf Lausch, Oscar-Werner Reif
  • Filter module and device for static filtration of fluids with such a module
    Publication number: 20050035044
    Abstract: The invention relates to a filter module and an apparatus for the static filtration of liquids using filter cells having deep bed filter layers and using spacer layers. According to the invention the filter module has a stack of n filter cells and n+1 spacer layers for filtrate and at least one channel arranged in the interior of the filter module. In this case n is ?1. The filter cells consist of a draining spacer layer for feed liquid and deep bed filter layers which are arranged in a sandwichlike manner thereto and which are joined to one another at their circumference toward the at least one channel at the rim via a sealing compound and wherein the spacer layers for filtrate are furnished with the sealing compound at the rim on their external circumference.
    Type: Application
    Filed: July 2, 2004
    Publication date: February 17, 2005
    Applicant: Sartorius AG
    Inventors: Willi Requate, Ulrich Grummert, Holger Linne, Pachalis Nikoloudis, Ralf Lausch, Oscar-Werner Reif