Patents by Inventor Jerry W. Vess

Jerry W. Vess 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).

  • Detector for a meter prover
    Patent number: 6789407
    Abstract: A detector for a meter prover. The detector includes a non-ferromagnetic barrel having a cylindrical bore formed longitudinally therethrough. A magnetic proximity switch is mounted in the bore near one end of the barrel. A ferromagnetic piston is disposed in the bore near the other end of the barrel. A spring urges the piston away from the proximity switch. A pair of wipers surrounds the piston and forms a fluid tight seat between the bore and the piston. A passageway extends longitudinally through the length of the piston in order to permit fluid flow therethrough.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: September 14, 2004
    Assignee: Weamco, Incorporated
    Inventors: Mike R. Poston, Jerry W. Vess