Patents by Inventor Stephan Kleen

Stephan Kleen 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: 6906607
    Abstract: The object of the invention is to produce multipole magnetic systems that are composed of a plurality of individual magnetic components that preferably are made of rare-earth magnetic material. The invention relates to a method for producing and magazining at least one individual magnetic component, a magazine for at least one individual magnetic component by molding and for conventionally magnetizing the same. The invention further relates to a method of assembly for producing a magnetic system and to the resulting magnetic systems. The invention teaches that extremely flat multipole magnetic systems in the form of magnet rings or magnet strips and three-dimensional magnet bodies such as a magnetic scale, for example, can be produced by means of individual magnetic components that are directly adjacent to each other or are arranged at a distance by means of a molding material, for example.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: June 14, 2005
    Assignee: Institut Fur Mikrotechnik Mainz GmbH
    Inventors: Lutz Weber, Matthias Nienhaus, Stephan Kleen, Wolfgang Ehrfeld
  • Patent number: 6700278
    Abstract: The invention relates to a disk motor with an armature disk, which is rotatably mounted and provided with permanent magnets, and with a stator which comprises a stator plate which is equipped with coils. The aim of the invention is to provide a disk motor that is as flat as possible and that is characterized by an improved smoothness of running. To this end, an annular soft-magnetic prestressing device is arranged concentrically on the stator plate in such a manner that at least one section of the prestressing device is located below the coil window of the coils in the axial direction. The armature disk may support an annular flux-return element opposite which the annular prestressing device is located in the radial direction. Said prestressing device has a cross-sectional contour that guides the magnetic lines of electric flux from the annular flux-return element to the coil window.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: March 2, 2004
    Assignee: Institute fur Mikrotechnik Mainz GmbH
    Inventors: Wolfgang Ehrfeld, Hans-Dieter Stölting, Frank Michel, Matthias Nienhaus, Stephan Kleen