Patents by Inventor Mark A. Day

Mark A. Day 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).

  • Blowout preventer positioning system
    Patent number: 7389820
    Abstract: An embodiment of a blowout preventer system of the present invention includes a mast functionally connected a frame assembly and a carriage functionally connected to the mast. The carriage is adapted to carry and support a blowout preventer in a manner such that the blowout preventer may be moved along an angular path and along a plurality of linear paths. The system may further include a mechanism for rotating the blowout preventer along a first rotational path. The system may further include a mechanism for rotating the blowout preventer along a second rotational path.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: June 24, 2008
    Assignee: Schlumberger Technology Corporation
    Inventor: Mark A. Day