Patents by Inventor Kjell Rabben

Kjell 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).

  • METHOD AND APPARATUS FOR DETERMINING A WELDING PROCESS PARAMETER
    Publication number: 20110168693
    Abstract: A method of determining a welding process parameter for an object comprises subjecting a specimen removed from the object to a controlled specimen welding process, measuring a property of the specimen, and determining a welding process parameter associated with the object from the measured specimen property and the controlled specimen welding process. In one disclosed embodiment the method permits the determination of a welding process parameter of a full scale pipe by use of a specimen removed from the pipe, or a similar pipe.
    Type: Application
    Filed: January 13, 2010
    Publication date: July 14, 2011
    Applicant: TUBEFUSE APPLICATIONS V.O.F
    Inventors: Wayne RUDD, Denis BRADBURY, James BURNELL-GRAY, Per Thomas MOE, Kjell RABBEN, Bjorn HALMRAST, Jan Inge AUDESTAD
  • Forge welding method
    Publication number: 20050236372
    Abstract: The invention relates to a method for forge welding tubulars such that formation of upsets in the welding zone is minimized which involves shaping the tubular ends that are to be welded together into an inwardly 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: July 17, 2003
    Publication date: October 27, 2005
    Applicant: Shell Oil Company
    Inventors: Per Moe, Per Moe, Johannis Den Boer, Anthony Cole, Klisthenis Dimitriadis, Bjorn Halmrast, Kjell Rabben, Djurre Zijsling