Patents by Inventor Eric Darnborough

Eric Darnborough 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).

  • Method and apparatus for installing a control valve assembly on an underwater well head
    Patent number: 4046192
    Abstract: A method of installing a valve-bearing assembly on an underwater oil well head and for checking the sealing-tightness of the pipes connected thereto, in a single operation without the use of a diver, comprises coupling the assembly to a tool connected to riser of a surface support and which includes means for connection and checking of the assembly controlled from the surface support.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: September 6, 1977
    Assignee: Seal Petroleum Limited
    Inventors: Eric Darnborough, Rene Henri Coulboy