Patents by Inventor Robert Mai

Robert Mai 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 and arrangement for cleaning pipe-shaped filter elements
    Patent number: 6736881
    Abstract: In a method and apparatus for cleaning pipe-shaped filter elements arranged in a housing including a separation wall dividing the housing into a clean gas space and a raw gas space into which the filter elements extend from the clean gas space through the separation wall and the raw gas is directed from the raw gas space through the filter elements into the clean gas space while dust is removed from the raw gas and collected on the filter elements, the filter elements are cleaned from time to time by supplying momentarily pressurized flushing gas to the clean air space which, at the same time, is closed to generate a flushing gas pulse providing for a backflow of clean gas from the clean gas space to the raw gas space, which dislodges dust collected on the filter elements.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: May 18, 2004
    Assignees: Forschungszentrum Karlsruhe GmbH, Pall Corporation
    Inventors: Hans Leibold, Robert Mai, Bernd Zimmerlin, Karsten Schulz
  • Method and arrangement for cleaning pipe-shaped filter elements
    Publication number: 20020014156
    Abstract: In a method and apparatus for cleaning pipe-shaped filter elements arranged in a housing including a separation wall dividing the housing into a clean gas space and a raw gas space into which the filter elements extend from the clean gas space through the separation wall and the raw gas is directed from the raw gas space through the filter elements into the clean gas space while dust is removed from the raw gas and collected on the filter elements, the filter elements are cleaned from time to time by supplying momentarily pressurized flushing gas to the clean air space which, at the same time, is closed to generate a flushing gas pulse providing for a backflow of clean gas from the clean gas space to the raw gas space, which dislodges dust collected on the filter elements.
    Type: Application
    Filed: September 28, 2001
    Publication date: February 7, 2002
    Inventors: Hans Leibold, Robert Mai, Bernd Zimmerlin, Karsten Schulz