Patents by Inventor Bernard Humphrey

Bernard Humphrey 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).

  • Production tree with multiple safety barriers
    Patent number: 6763891
    Abstract: The wellhead assembly has a production tree with multiple safety barriers. A tubing hanger lands and seals in the bore of the tree. The tubing hanger has a lateral production flow passage that registers with a lateral passage in the tree. A tubing annulus passage extends upward from the tubing annulus to an exterior port. A second portion of the tubing annulus passage extends upward from the exterior port into the bore above the tubing hanger seal. The external port may be used for gas injection. If so, two closure members are located in the upper portion of the tubing annulus above the seal. The upper closure member may be either a check valve or a removable plug.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: July 20, 2004
    Assignee: ABB Vetco Gray Inc.
    Inventors: Bernard Humphrey, Jeffrey P. Goetz, Kevin L. Ingram, Norman Brammer, Robert K. Voss, Jr.
  • Production tree with multiple safety barriers
    Publication number: 20030019632
    Abstract: The wellhead assembly has a production tree with multiple safety barriers. A tubing hanger lands and seals in the bore of the tree. The tubing hanger has a lateral production flow passage that registers with a lateral passage in the tree. A tubing annulus passage extends upward from the tubing annulus to an exterior port. A second portion of the tubing annulus passage extends upward from the exterior port into the bore above the tubing hanger seal. The external port may be used for gas injection. If so, two closure members are located in the upper portion of the tubing annulus above the seal. The upper closure member may be either a check valve or a removable plug.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 30, 2003
    Inventors: Bernard Humphrey, Jeffrey P. Goetz, Kevin L. Ingram, Norman Brammer, Robert K. Voss