Patents by Inventor Christopher Caulkins

Christopher Caulkins 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).

  • Liquid cooled reductant dosing unit
    Patent number: 9617884
    Abstract: A liquid cooled reduction unit includes a diesel exhaust fluid (DEF) injection valve. The valve includes an end portion extending to a distal end. The valve is configured to receive a DEF and force the DEF to exit at the distal end such that the DEF is then directed and applied to an exhaust stream of a vehicle engine. A coolant jacket is selectively filled with a coolant and has an outer side and an inner side. The inner side of the jacket faces a length of the end portion and is separated from the length of the end portion by an air gap.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: April 11, 2017
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Robert Wayne McFarland, Keith Aaron Shaw, Michael J. Hornby, James A. Wynn, Joshua Lee Hatfield, Christopher Caulkins, Stephen C. Bugos
  • Liquid Cooled Reductant Dosing Unit
    Publication number: 20160084129
    Abstract: A liquid cooled reduction unit includes a diesel exhaust fluid (DEF) injection valve. The valve includes a housing that forms an elongated chamber therein. The valve configured to receive a DEF and force the DEF through the chamber to exit the chamber and the DEF is then being directed and applied to an exhaust stream of a vehicle engine. A coolant jacket is selectively filled with a coolant and has an outer side and an inner side. The inner side of the jacket faces a length of the valve body and is separated from the length of the valve body by an air gap.
    Type: Application
    Filed: September 18, 2014
    Publication date: March 24, 2016
    Inventors: Robert Wayne McFarland, Keith Aaron Shaw, Michael J. Hornby, James A. Wynn, Joshua Lee Hatfield, Christopher Caulkins, Stephen C. Bugos