Patents by Inventor William Frederick Ball

William Frederick Ball 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).

  • Gas treatment apparatus
    Patent number: 7351381
    Abstract: The present invention relates to a gas treatment apparatus for treating the exhaust gas stream from an internal combustion engine. The apparatus comprises several compartments within which one or more treatments are to be performed upon a gas flowing through the compartments. At least one compartment includes a treatment element secured against axial movement at each end. The treatment element is secured at least at one end by removable axial retaining apparatus. The removable axial retaining apparatus includes a secured member secured against axial movement. The treatment element is removable from within the compartment by axial movement after the removable axial retaining apparatus has been removed.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: April 1, 2008
    Assignee: Eminox Limited
    Inventors: William Frederick Ball, Anthony John Gault, Charles Patrick Harrod
  • Gas treatment apparatus
    Publication number: 20040228776
    Abstract: The present invention relates to a gas treatment apparatus for treating the exhaust gas stream from an internal combustion engine. The apparatus comprises several compartments within which one or more treatments are to be performed upon a gas flowing through the compartments. At least one compartment includes a treatment element secured against axial movement at each end. The treatment element is secured at least at one end by removable axial retaining apparatus. The removable axial retaining apparatus includes a secured member secured against axial movement. The treatment element is removable from within the compartment by axial movement after the removable axial retaining apparatus has been removed.
    Type: Application
    Filed: April 23, 2004
    Publication date: November 18, 2004
    Applicant: Eminox Limited
    Inventors: William Frederick Ball, Anthony John Gault, Charles Patrick Harrod