Patents by Inventor Audun Sjursaether

Audun Sjursaether 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).

  • Device and method for clamping a top drive saver sub
    Patent number: 9309729
    Abstract: A tool is for clamping a saver sub assembly of the drive shaft of a top drive drilling machine, in which a tong, which is arranged to fixedly hold the saver sub assembly by releasable abutment against a portion of the saver sub assembly, is arranged on an upper portion of a frame which, in a position of use, is rotationally rigidly fixed to and projects from a support, the frame being provided with a through-going center opening arranged to receive a substantial portion of the saver sub assembly. A method of replacing a saver sub assembly on the drive shaft of a top drive drilling machine is described as well.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 12, 2016
    Assignee: Quality Technical Group AS
    Inventor: Audun Sjursaether
  • Device and Method for Clamping a Top Drive Saver Sub
    Publication number: 20130161025
    Abstract: A tool is for clamping a saver sub assembly of the drive shaft of a top drive drilling machine, in which a tong, which is arranged to fixedly hold the saver sub assembly by releasable abutment against a portion of the saver sub assembly, is arranged on an upper portion of a frame which, in a position of use, is rotationally rigidly fixed to and projects from a support, the frame being provided with a through-going center opening arranged to receive a substantial portion of the saver sub assembly. A method of replacing a saver sub assembly on the drive shaft of a top drive drilling machine is described as well.
    Type: Application
    Filed: July 14, 2011
    Publication date: June 27, 2013
    Applicant: Quality Technical Group AS
    Inventor: Audun Sjursaether