Patents by Inventor Robert Joseph Long

Robert Joseph Long 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).

  • Eductor circulated nut shell media filter
    Publication number: 20040074836
    Abstract: This patent application covers a nutshell media filter with an external, horizontally mounted media retention screen, a concentric flow inlet distributor, a vessel false bottom, the use of an eductor to circulate filter media, use of a jackshaft/pillow block bearing to drive the circulation pump, and a plug flow displacement step in the media cleaning cycle.
    Type: Application
    Filed: October 21, 2002
    Publication date: April 22, 2004
    Inventor: Robert Joseph Long