Patents by Inventor Colin F. Keddie

Colin F. Keddie 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).

  • Patent number: 7871729
    Abstract: A system and method for reducing concentrations of reactants in gases flowing through an exhaust system are disclosed. Briefly described, one embodiment comprises creating a turbulent flow of gases along a periphery region of an exhaust pipe, the turbulent flow created by the gases transported over a wire mesh residing in the periphery region; and mixing the gases in the periphery region with a reactant gas being transported in a flow-through region, the mixing caused by the turbulent flow of gases, such that concentration of the reactant gas is reduced as the reactant gas is transported through the exhaust system.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: January 18, 2011
    Assignees: Daimler AG, Ford Motor Company
    Inventors: Jacob W. De Vaal, Colin F. Keddie