Patents by Inventor Neil W. Allen

Neil W. Allen 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).

  • Seafloor diverter
    Patent number: 4376467
    Abstract: This relates to drilling in water from a platform or vessel using a riser pipe. An inverted funnel skirt or cone is placed over slots cut in the wall of a riser pipe a short distance above its lower end. The apex end of the cone is welded to the riser pipe above the slots and drill cuttings pass through the slots and fall to the seafloor. Another embodiment includes an "L" shaped diverter flowline welded to the periphery of each hole in the riser pipe with one leg of the "L" extending a short distance below the hole.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: March 15, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventor: Neil W. Allen
  • Seafloor diverter
    Patent number: 4220207
    Abstract: This relates to drilling in water from a platform or vessel using a riser pipe. An inverted funnel skirt or cone is placed over slots cut in the wall of a riser pipe a short distance above its lower end. The apex end of the cone is welded to the riser pipe above the slots and drill cuttings pass through the slots and fall to the seafloor. Another embodiment includes an "L" shaped diverter flowline welded to the periphery of each hole in the riser pipe with one leg of the "L" extending a short distance below the hole.
    Type: Grant
    Filed: October 31, 1978
    Date of Patent: September 2, 1980
    Assignee: Standard Oil Company (Indiana)
    Inventor: Neil W. Allen