Patents by Inventor Michael Roesemann

Michael Roesemann 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: 7168281
    Abstract: A method for producing an annular element having an inner toothing, especially a sliding sleeve. An outlet ring element can be arranged in an extrusion device which includes an annular matrix element with an inner bore hole, a sleeve stamping device which is arranged therein and has first and second annular sleeve stamping elements which can be moved in relation to each other in the inner bore hole, and an inner stamping device having first and second inner stamping elements and first and second partial regions which are interspaced in the circumferential direction. When the inner stamping device is closed, the partial regions form cavities for producing the inner toothing. The outlet ring element is arranged between the first and second inner stamping elements and is measured in such a way that when closing the sleeve stamping device, material from the outlet ring element flows into the cavities for the formation of the inner toothing.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: January 30, 2007
    Assignee: Neumayer Tekfor GmbH
    Inventors: Ekkehard Koerner, Michael Roesemann
  • Publication number: 20050103083
    Abstract: The invention relates to a method for producing an annular element comprising an inner toothing, especially a sliding sleeve. An outlet ring element (10) can be arranged in an extrusion device (90) which comprises an annular matrix element (13) with an inner bore hole (12), a sleeve stamping device which is arranged therein and comprises a first (15) and second (17) annular sleeve stamping element which can be moved in relation to each other in the inner bore hole (12), and an inner stamping device comprising a first (19) and second (21) inner stamping element and first (27?) and second (27?) partial regions which are interspaced in the circumferential direction. When the inner stamping device is closed, said partial regions form cavities (27) for producing the inner toothing.
    Type: Application
    Filed: March 26, 2003
    Publication date: May 19, 2005
    Inventors: Ekkehard Korner, Michael Roesemann