Patents by Inventor Jan Peter Elfeldt

Jan Peter Elfeldt 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 for connecting a sheet metal component, such as a pipe, to a cast metal component, such as a housing port, in particular for an exhaust system
    Patent number: 8183494
    Abstract: In the method according to the invention for connecting a sheet metal component (3) to a component (5) consisting of cast metal, the sheet metal component (3) and the component (5) are welded to one another by means of a pulse-welding method. In particular, a sheet metal pipe (3) can thereby be welded to the port (12) of a housing (13) consisting of cast metal. This advantage may be utilized for an exhaust system with an exhaust manifold (3) and an exhaust assembly, such as a turbocharger (5).
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: May 22, 2012
    Assignee: BorgWarner Inc.
    Inventors: Wilfried Bien, Jan Peter Elfeldt, Michael Halves, Thomas Huelsberg, Uwe Klussmann, Hildwin Kuzi, Holger Nuhn, Ralf Puenjer, Olav Reinhardt, Dirk Riewert, Alfred Riggers, Thorsten Sternal