Patents by Inventor Norbert H. Ellis

Norbert H. Ellis 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).

  • Carbon contact column
    Patent number: 4085043
    Abstract: In a carbon contact column for a system for removing certain organic compounds from waste water, carbon supplied to the column flows in counter-current contact with the stream of waste water flowing through the column. Carbon is removed from the bottom of the column by a jet eductor. A source of fluidizing water is connected to the column adjacent to the eductor to prevent the formation of a cavity in the carbon bed in that area adjacent to the jet eductor.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: April 18, 1978
    Assignee: Met-Pro Systems, Inc.
    Inventor: Norbert H. Ellis