Patents Examined by Audry K Bradley
  • Exhaust fluid filter including hydrocarbon detection witness media
    Patent number: 10344649
    Abstract: An aftertreatment system includes an exhaust reductant tank configured to store an exhaust reductant. A filter is fluidically coupled to the exhaust reductant tank. The aftertreatment system includes a hydrocarbon detection device configured to indicate the presence of a hydrocarbon in the exhaust reductant. A catalyst is included in the system and configured to treat the exhaust reductant flowing through the system. The hydrocarbon detection device can include a hydrophobic paper, and can be disposed in the filter.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: July 9, 2019
    Assignee: Cummins Emission Solutions, Inc.
    Inventor: Kevin Gudorf