Patents by Inventor Christian Lehnert

Christian Lehnert 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: 10207321
    Abstract: The present invention relates to a system for contactless induction of high-frequency vibrations in a volume of molten metal during the manufacturing of a metal component or a metal matrix composite component. The system includes a moveably arranged electromagnetic primary coil, adjustment means for adjusting the position of the primary coil, and a control unit for controlling the position of the primary coil to a predefined distance above, but not in contact with, an upper free surface of the molten metal. The molten metal may be contained in a foundry crucible during manufacturing. The system can be used as an additive manufacturing system, with the primary coil arranged above the melt pool. A secondary low-frequency electromagnetic coil may be arranged around and at a distance from the molten metal to induce flow and/or vibrations in the molten metal.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: February 19, 2019
    Assignee: European Space Agency
    Inventors: David John Jarvis, Koulis Pericleous, Valdis Bojarevics, Christian Lehnert
  • Publication number: 20160312322
    Abstract: A device and a method for treating metallic material. In particular, the invention is suitable for treating and/or producing steel and metallic alloys, in particular non-standard grade steels and alloys of particularly high quality. The invention has proved to be particularly successful in the treatment of iron-based metallic materials.
    Type: Application
    Filed: December 16, 2014
    Publication date: October 27, 2016
    Inventors: Hans Johann KEMMER, Christian LEHNERT, Andreas EICH, Harald SCHOLZ, Peter ZOTZ
  • Patent number: 9464668
    Abstract: A bearing system having a bearing pair made up of at least one bearing and at least one running partner, wherein a coating which is made up of a layer of which the main constituent is amorphous SiO2 is applied to at least one running surface of the bearing pair.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: October 11, 2016
    Assignee: WIELAND-WERKE AG
    Inventors: Gerhard Thumm, Till Merkel, Volker Voggeser, Christian Lehnert
  • Publication number: 20160199907
    Abstract: The present invention relates to a system for contactless induction of high-frequency vibrations in a volume of molten metal (1) during the manufacturing of a metal component or a metal matrix composite component. The system comprises a moveably arranged electromagnetic primary coil (2), adjustment means (3) for adjusting the position of the primary coil (2), and a control unit (5) for controlling the position of the primary coil (2) to a predefined distance above and not in physical contact with an upper free surface (4) of the molten metal (1) during use of the system. In some embodiments of the invention the molten metal (1) is contained in a foundry crucible (7) during manufacturing. In other embodiments, the system is used for an additive manufacturing system, so that the primary coil (2) is arranged above the melt pool (16). In both embodiments, a secondary low-frequency electromagnetic coil (9) may be arranged around and at a distance from the molten metal (1).
    Type: Application
    Filed: August 29, 2013
    Publication date: July 14, 2016
    Inventors: David John Jarvis, Koulis Pericleous, Valdis Bojarevics, Christian Lehnert
  • Patent number: 9169552
    Abstract: A process for the application of layers composed of ceramic or organoceramic materials on surfaces of metals, semimetals or compounds thereof and also components or assemblies made of these materials by a chemical deposition process from the gas phase at atmospheric pressure or 30% below this and process temperatures during deposition below 500° C. The deposition process is carried out in one operation, wherein the reactive chemical substances and the precursors are homogeneously backmixed in the common gas space, and the average residence time as a ratio of volume of the gas space to gas throughput is matched to the rate-determining step of the catalyzed gas-phase reaction of the coating process so as to achieve a deposition rate of from 10 to 2000 nm per hour.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: October 27, 2015
    Assignee: WIELAND-WERKE AG
    Inventors: Till Merkel, Christian Lehnert
  • Publication number: 20140254964
    Abstract: The invention relates to a bearing system having a bearing pair made up of at least one bearing and at least one running partner, wherein a coating which comprises a layer of which the main constituent is amorphous SiO2 is applied to at least one running surface of the bearing pair.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 11, 2014
    Inventors: Gerhard THUMM, Till MERKEL, Volker VOGGESER, Christian LEHNERT
  • Publication number: 20120219711
    Abstract: A process for the application of layers composed of ceramic or organoceramic materials on surfaces of metals, semimetals or compounds thereof and also components or assemblies made of these materials by a chemical deposition process from the gas phase at atmospheric pressure or 30% below this and process temperatures during deposition below 500° C. The deposition process is carried out in one operation, wherein the reactive chemical substances and the precursors are homogeneously backmixed in the common gas space, and the average residence time as a ratio of volume of the gas space to gas throughput is matched to the rate-determining step of the catalyzed gas-phase reaction of the coating process so as to achieve a deposition rate of from 10 to 2000 nm per hour.
    Type: Application
    Filed: August 19, 2010
    Publication date: August 30, 2012
    Inventors: Till Merkel, Christian Lehnert