Patents by Inventor Brian James Witsaman

Brian James Witsaman 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).

  • Systems and methods for controlling a shut-off valve of a dosing control system
    Patent number: 11105240
    Abstract: A dosing control system includes a shut-off valve, a reductant pump, a reductant injector, and a recirculation conduit. The shut-off valve is configured to receive reductant from a reductant tank. The reductant pump is configured to selectively receive the reductant from the shut-off valve. The reductant pump is configured to selectively be in a reductant pump command state. The reductant injector is configured to selectively receive the reductant from the reductant pump. The recirculation conduit is coupled to the reductant injector and the reductant tank. The recirculation conduit is configured to selectively provide the reductant from the reductant injector to the reductant tank. The shut-off valve is configured to prevent a flow of the reductant to the reductant pump when the reductant pump is not in the reductant pump command state.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: August 31, 2021
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Joseph Andrew Hudson, Thomas R. Nelson, Paul M. Hauser, Sandeep Sarabudla, Brian James Witsaman, Atul S. Abhyankar
  • SYSTEMS AND METHODS FOR CONTROLLING A SHUT-OFF VALVE OF A DOSING CONTROL SYSTEM
    Publication number: 20200040790
    Abstract: A dosing control system includes a shut-off valve, a reductant pump, a reductant injector, and a recirculation conduit. The shut-off valve is configured to receive reductant from a reductant tank. The reductant pump is configured to selectively receive the reductant from the shut-off valve. The reductant pump is configured to selectively be in a reductant pump command state. The reductant injector is configured to selectively receive the reductant from the reductant pump. The recirculation conduit is coupled to the reductant injector and the reductant tank. The recirculation conduit is configured to selectively provide the reductant from the reductant injector to the reductant tank. The shut-off valve is configured to prevent a flow of the reductant to the reductant pump when the reductant pump is not in the reductant pump command state.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Applicant: CUMMINS EMISSION SOLUTIONS INC.
    Inventors: Joseph Andrew Hudson, Thomas R. Nelson, Paul M. Hauser, Sandeep Sarabudla, Brian James Witsaman, Atul S. Abhyankar