Patents by Inventor Robert L. Marvel, III

Robert L. Marvel, III 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).

  • Bladder containment mechanism
    Patent number: 8246052
    Abstract: A downhole submersible pumping system includes a housing and a bag seal assembly. The bag seal assembly includes a seal bag and a fastening assembly. The fastening assembly is configured to exert a compressive force between inner and outer surfaces of a first end of the seal bag. The fastening assembly may include a first ring attached to the support tube, a second ring and a plurality of fastening members. The first ring may be configured for threaded engagement with the support tube. The second ring is configured for engagement with the first ring.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 21, 2012
    Assignee: GE Oil & Gas ESP, Inc.
    Inventor: Robert L. Marvel, III