Patents by Inventor Daniel K. Ferguson

Daniel K. Ferguson 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).

  • Water cooled flue gas sampling device
    Patent number: 5759482
    Abstract: A device for sampling flue gas from a duct includes a casing tube having a longitudinal axis, and a port for connecting an interior of the casing tube with a source of cooling fluid, an extraction tube having an end part disposed in the interior of the casing tube, an end of the extraction tube extending through the casing tube to form an inlet opening, an intermediate tube disposed between the casing tube and the extraction tube and spaced from the casing tube and the extraction tube to define a cooling fluid circuit and a sampling tube extending in an interior of the extraction tube and having an opening in an interior of the extraction tube.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: June 2, 1998
    Assignee: Air Liquide America Corp.
    Inventors: David Scott Gregory, Daniel K. Ferguson