Patents by Inventor Jan Erik Pedersen

Jan Erik Pedersen 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).

  • Patent number: 8844688
    Abstract: A mouse hole damper device positioned at the bottom portion of a mouse hole pipe, the mouse hole damper being arranged to dampen an impact from an object falling in the mouse hole pipe, and the mouse hole damper including a material which has been worked into forming walls around elongated openings, and the material being arranged in such a way that the openings are substantially parallel to the longitudinal axis of the mouse hole pipe.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: September 30, 2014
    Assignee: National Oilwell Norway AS
    Inventor: Jan Erik Pedersen
  • Publication number: 20110233017
    Abstract: A mouse hole damper device positioned at the bottom portion of a mouse hole pipe, the mouse hole damper being arranged to dampen an impact from an object falling in the mouse hole pipe, and the mouse hole damper including a material which has been worked into forming walls around elongated openings, and the material being arranged in such a way that the openings are substantially parallel to the longitudinal axis of the mouse hole pipe.
    Type: Application
    Filed: October 26, 2009
    Publication date: September 29, 2011
    Applicant: National Oilwell Varco Norway AS
    Inventor: Jan Erik Pedersen
  • Publication number: 20090211404
    Abstract: An apparatus for rotating a tubular, the apparatus, in at least certain aspects including having a plurality of tubular-contacting rollers with one or more pairs of interlaced rollers. This Abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).
    Type: Application
    Filed: February 25, 2008
    Publication date: August 27, 2009
    Inventors: Jan Erik Pedersen, Jonathan Webb, Roar Berge
  • Patent number: 6207061
    Abstract: A method for filtering hydrocarbon contaminated water for separation and recovery of the contaminants and recirculation of the water, wherein the water contaminated by hydrocarbons is, in a series of successive stages, caused to flow down through a cushion of a filtering hydrocarbon that floats on a defined surface of a water body and is permitted to flow via an underflow into the free portion of the water body prior to transfer via an overflow to the next stage, and where, in a final stage, approximately anhydrous hydrocarbon is drawn off as overflow while hydrocarbon-free water is removed as underflow, is carried out with the aid of an apparatus which, in operable state, comprises a series of successive basins filled with water (2, 3, 4) separated by walls (22, 23), where an upper part of each basin is bounded by means of fixed partition walls (32, 33) projecting downward in the water and is filled with a filtering hydrocarbon (12, 13, 14), where the final cushion of filtering hydrocarbon (14) downstream is
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: March 27, 2001
    Inventors: Helge Pedersen, Jan Erik Pedersen