Patents by Inventor John S. Howitt

John S. Howitt 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).

  • Swirl exhaust gas flow distribution for catalytic conversion
    Patent number: 3964875
    Abstract: In an exhaust system for an internal combustion engine, wherein pollutants are removed from the exhaust gases by catalytic conversion, a pinwheel type of deflector positioned within the exhaust flow provides a radially-outwardly deflected swirl flow to the gases as they emanate from an exhaust pipe of one diameter into a canister of larger diameter for housing a catalytic converter. Such flow distribution results in improved catalytic conversion efficiencies obtainable by the converter and reduces its degradation rate inherent with time.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: June 22, 1976
    Assignee: Corning Glass Works
    Inventors: Zung S. Chang, John S. Howitt, Robert V. VanDewoestine