Patents by Inventor Rafeal Ramirez

Rafeal Ramirez 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).

  • Annular seal
    Patent number: 8267384
    Abstract: An annular seal device includes a mandrel, at least one cone axially moveable on the mandrel, at least one sealing element having a frustoconical outer surface and a frustoconical inner surface, at least one contact feature at the at least one cone and operably engageable with the at least one sealing element, and at least one of a blocking element and a resilient member at the mandrel, the at least one of a blocking element and a resilient member supporting a blocking surface in opposition to the at least one contact feature. The resilient member itself includes a tubular body having spring rings at axial ends thereof, and a plurality of beams extending spirally from one axial end to the other axial end.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: September 18, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: Marcus A. Avant, Rafeal Ramirez