Patents by Inventor Randall J. Marchelletta

Randall J. Marchelletta 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).

  • CONTACTING SEAL ARRANGEMENT FOR LOW AND HIGH PRESSURE APPLICATIONS
    Publication number: 20210156390
    Abstract: A runner assembly for mounting to, and rotating with, a pump shaft of a pump includes a support member to be fixed to the pump shaft; a seal face ring positioned on, and mounted to the support member by a support shroud coupled to the support member; and an outer O-ring positioned in an upward and radially outward facing notch defined in a top portion of the support member. The outer O-ring forms a static sealed joint between the top of the support member and the bottom of the seal face ring.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Applicant: Westinghouse Electric Company LLC
    Inventors: Arnaud Milan, Michael A. LaPresti, Bruce A. Howard, Brandon H. Bruner, Randall J. Marchelletta