Patents by Inventor Bjorn A. Eilertsen

Bjorn A. Eilertsen 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).

  • Arrangement in a pipe handling system
    Patent number: 5437527
    Abstract: The invention relates to an arrangement in a pipe handling system, especially for handling pipes (4P) in connection with a derrick 1A, wherein the arrangement comprises a tower (1) and two preferably individually controlled operating arms (2a, 2b). The pipe handling system operates favorably in connection with a finger board (4) in which all fingers (4a, 4n) are pointing towards the center of the pipe handling system and especially towards a disc-shaped locking unit (4R) mounted on the top of the tower (1), and in connection with a side-step retraction system designed for use with a top drive drilling system.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: August 1, 1995
    Assignee: Hitech A/S
    Inventors: John McGill, Bjorn A. Eilertsen
  • Arrangement in a pipe handling system
    Patent number: 5244329
    Abstract: The invention relates to an arrangement in a pipe handling system, especially for handling pipes (4P) in connection with a derrick 1A, wherein the arrangement comprises a tower (1) and two preferably individually controlled operating arms (2a, 2b). The pipe handling system operates favorably in connection with a finger board (4) in which all fingers (4a, 4n) are pointing towards the center of the pipe handling system and especially towards a disc-shaped locking unit (4R) mounted on the top of the tower (1), and in connection with a side-step retraction system designed for use with a top drive drilling system.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: September 14, 1993
    Assignee: Hitec A.S.
    Inventors: John McGill, Bjorn A. Eilertsen