Patents by Inventor Robert R. Schoen

Robert R. Schoen 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).

  • Sealing assembly for subsea wellheads
    Patent number: 5755287
    Abstract: A sealing assembly (40) for fitting between an upper wellhead connector (12) and a lower wellhead housing or hub 14. Upper wellhead connector (12) has a downwardly facing frusto-conical sealing surface (32) and wellhead housing (14) has an upwardly facing frusto-conical sealing surface (34). Sealing assembly (40) includes a metal ring (42) having annular grooves (58) therein to receive elastomeric sealing elements (60) therein. Elastomeric sealing elements (60) have extending lips (62) for contacting and sealing against adjacent sealing surfaces (32, 34) spaced from opposed frusto-conical surfaces (54, 56) on the metal ring (42) to provide elastomeric seals for the sealing surfaces (32, 34) of wellhead connector (12) and wellhead housing (14).
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: May 26, 1998
    Assignee: FMC Corporation
    Inventors: David E. Cain, Gerald B. Swagerty, Robert R. Schoen