Patents by Inventor Olaf Bertelsen

Olaf Bertelsen 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 a method for disconnecting a tool from a pipe string
    Patent number: 7174963
    Abstract: A disconnection device for disconnecting a tool and a pipe string comprises a first connection part releasably connected to a second connection part by means of a locking device and a release object. The release object is soluble by means of, for example, acid.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: February 13, 2007
    Assignee: Bakke Oil Tools, AS
    Inventor: Olaf Bertelsen
  • Device and a method for disconnecting a tool from a pipe string
    Publication number: 20040216887
    Abstract: A disconnection device for disconnecting a tool and a pipe string comprises a first connection part releasably connected to a second connection part by means of a locking device and a release object. The release object is soluble by means of, for example, acid.
    Type: Application
    Filed: March 18, 2004
    Publication date: November 4, 2004
    Inventor: Olaf Bertelsen