Patents by Inventor Ronald D. Quates

Ronald D. Quates 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).

  • Non-extrusion device for split annular casing/tubing hanger compression seals
    Patent number: 5342066
    Abstract: A non-extrusion device for split annular well casing and tubing hanger compression seals has a flat annular body having truncated, radially-split cone portions forming through holes for receiving pins or bolts and for guiding a compressed elastomer seal between inner and outer tubing structures along a radial direction to prevent axial extrusion of the seal.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: August 30, 1994
    Assignee: FMC Corporation
    Inventors: Ronald W. Henley, Ronald D. Quates, Michael R. Williams, Henry Wong
  • Metal-to-metal wellhead seal for rough casing
    Patent number: 5183268
    Abstract: An annular metallic seal element for wellhead housings to provide a fluid-tight seal with a well casing that will withstand extreme temperatures and high pressures.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: February 2, 1993
    Assignee: FMC Corporation
    Inventors: Henry Wong, Ronald D. Quates, Lien-Yan Chen
  • Wellhead seal for wide temperature and pressure ranges
    Patent number: 5180008
    Abstract: A wellhead seal for establishing and maintaining a seal between a wellhead and inner pipe element. The seal is an annular elastomeric body having an inner axial surface with a generally convex central portion for pressing against the inner pipe element surrounded by the wellhead and an outer axial surface with a generally concave central portion which, in one embodiment, receives an annular energizing element to increase the sealing force between the body and casing. An annular anti-extrusion ring is provided at the inner edge of each radial end surface.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: January 19, 1993
    Assignee: FMC Corporation
    Inventors: Tod Aldridge, John A. Fitzgerald, Allan K. McGregor, Ronald D. Quates, Rudolf R. Schoen, Appavoo Thangarasu, John C. Vicic