Patents by Inventor Denis W. Johnson

Denis W. Johnson 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).

  • Scrubbing method and apparatus incorporating progressively increased gas velocity
    Patent number: 5421861
    Abstract: An absorber tower that is configured to progressively increase the flow of the flue gas therethrough. This is accomplished by reducing the cross-sectional area of the tower (either continuously or in steps) thereby forcing the gas to increase in velocity as it travels toward the exit conduit.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: June 6, 1995
    Assignee: The Babcock & Wilcox Company
    Inventors: Wadie F. Gohara, Denis W. Johnson, Thomas W. Strock