Patents by Inventor Kjell Magne Rabben

Kjell Magne Rabben 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).

  • Apparatuses for and methods of forge welding elongated articles with electrodes and an induction coil
    Patent number: 8354625
    Abstract: The present application relates to an apparatus for and a method of forge welding elongate articles (1, 2), such as tubes, together. In addition to electrode (12, 13) assemblies (9) for heating the article (1, 2) ends with high frequency resistive heating, the apparatus includes a coil (3) for induction heating the articles (1, 2) before or after welding, as well as means for cooling the welding seam.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: January 15, 2013
    Assignee: AMR Engineering AS
    Inventors: Per Thomas Moe, Bjørn Halmrast, Kjell Magne Rabben
  • FORGE WELDING METHOD
    Publication number: 20080237308
    Abstract: A method of joining tubulars includes the step of joining the tubulars by forge welding. The tubular ends that are to be welded together may be shaped into a sloping configuration, such that when the tubular ends are heated during the forge welding process the heated tubular ends deform as a result of thermal expansion into a substantially longitudinally oriented cylindrical shape.
    Type: Application
    Filed: June 12, 2008
    Publication date: October 2, 2008
    Inventors: Johannis Josephus DEN BOER, Anthony Thomas Cole, Klisthenis Dimitriadis, Bjorn Halmrast, Per Thomas Moe, Kjell Magne Rabben, Djurre Hans Zijsling