Patents by Inventor Martin E. Barnes

Martin E. Barnes 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).

  • SLURRY PUMP WITH ADJUSTABLE LINER
    Publication number: 20140064923
    Abstract: A pump comprising a housing, an impeller within the housing defining an axis, a front head connected to the housing, a liner disposed between the front head and the impeller, and at least one actuator operatively connected between the front head and the liner to move the liner axially with respect to the impeller, the actuator being adapted for connection to an actuation system.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 6, 2014
    Applicant: Ellicott Dredges, LLC
    Inventors: Martin E. Barnes, Aaron S. Montgomery, John V. DeNuto