Patents by Inventor Alan Murray Clark

Alan Murray Clark 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).

  • RISER GAS HANDLING SYSTEM AND METHOD OF USE
    Publication number: 20190195032
    Abstract: The invention provides a system for handling gas in a riser. The system comprises a riser flow spool, a riser isolation device and an upper riser disconnect assembly wherein at least the riser flow spool is connected to the riser below a riser tension ring and the upper riser disconnect assembly is located above the riser tension ring.
    Type: Application
    Filed: September 1, 2017
    Publication date: June 27, 2019
    Inventors: Alan Murray Clark, Alan John Reid, Ian McQueen Allan, Graham Paterson Birkett
  • Wellhead assembly for communicating with the casing hanger annulus
    Patent number: 6708766
    Abstract: A subsea wellhead assembly has the capabilities of communicating from the outer surface of an outer wellhead housing to a casing annulus. Seals between the outer and inner wellhead housings define an annular chamber when the inner wellhead housing lands. The outer wellhead housing has a communication port formed through one of its sidewalls. The inner wellhead housing has a passageway extending from the annular chamber to the bore of the inner wellhead housing. The casing annulus located radially inward of the inner wellhead housing is in communication with the outer surface of the outer wellhead housing through the passageway, the annular chamber between the seals, and the communication port.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: March 23, 2004
    Assignee: ABB Vetco Gray Inc.
    Inventor: Alan Murray Clark
  • Wellhead assembly for communicating with the casing hanger annulus
    Publication number: 20030111229
    Abstract: A subsea wellhead assembly has the capabilities of communicating from the outer surface of an outer wellhead housing to a casing annulus. Seals between the outer and inner wellhead housings define an annular chamber when the inner wellhead housing lands. The outer wellhead housing has a communication port formed through one of its sidewalls. The inner wellhead housing has a passageway extending from the annular chamber to the bore of the inner wellhead housing. The casing annulus located radially inward of the inner wellhead housing is in communication with the outer surface of the outer wellhead housing through the passageway, the annular chamber between the seals, and the communication port.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 19, 2003
    Applicant: ABB Vetco Gray, Inc.
    Inventor: Alan Murray Clark