Patents by Inventor Tim Hosenfeldt

Tim Hosenfeldt 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).

  • Publication number: 20200365912
    Abstract: A coating for a bipolar plate of a fuel cell or an electrolyzer contains a homogeneous or heterogeneous solid metal solution. The coating contains at least 15% Iridium and up to 84% Ruthenium with a total combined concentration of Iridium and Ruthenium of at least 99% (atomic). The coating also contains at least one of Nitrogen, Carbon, and Flourine. The coating may contain traces of Oxygen or Hydrogen. The coating may be used as part of a layer system that includes one or more undercoat layers and the coating as a covering layer.
    Type: Application
    Filed: June 11, 2018
    Publication date: November 19, 2020
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Ladislaus Dobrenizki, Yashar Musayev, Tim Hosenfeldt, Detlev Repenning
  • Publication number: 20190051913
    Abstract: Layers for a bipolar plates are disclosed, as well as bipolar plates including the layers and fuel cells and/or electrolyzers including the bipolar plates. The layer may include a homogeneous or heterogeneous solid metallic solution or compound which either contains a first chemical element from the group of the noble metals in the form of iridium; or contains a first chemical element from the group of the noble metals in the form of iridium and a second chemical element from the group of the noble metals in the form of ruthenium. The layer may also include at least one further nonmetallic chemical element from the group consisting of nitrogen, carbon, boron, fluorine, and hydrogen.
    Type: Application
    Filed: January 5, 2017
    Publication date: February 14, 2019
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Ladislaus Dobrenizki, Tim Hosenfeldt, Yashar Musayev, Detlev Repenning
  • Publication number: 20080044646
    Abstract: A process for producing a wear-resistant coating and a wear-resistant coating on a surfaces of machine or engine parts which are exposed to frictional wear. This has in particular use for internal combustion engines. The coating comprises at least one metal-free, amorphous hydrocarbon layer which includes sp2- and sp3-hybridized carbon applied to the surface of the machine part, for reducing friction and increasing the wear resistance of the surface of the machine or engine part.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 21, 2008
    Applicant: INA SCHAEFFLER KG
    Inventors: Bodo RORIG, Tim HOSENFELDT
  • Publication number: 20070224349
    Abstract: A method for producing a wear resistant coating as well as a wear resistant coating is provided, which is applied to predetermined surfaces of machine parts (1) that are exposed to wear by friction, in particular for internal combustion engines. The coating is made of at least one tetrahedral amorphic carbon layer (4) that is devoid of hydrogen or practically devoid of hydrogen, with the layer being applied to the predetermined surface (2) of the machine part (1) and including sp2 and sp3 hybirdised carbon for reducing the friction and for increasing the wear-resistance of the predetermined surface of the machine part.
    Type: Application
    Filed: July 19, 2005
    Publication date: September 27, 2007
    Applicant: SCHAEFFLER KG
    Inventors: Tim Hosenfeldt, Karl-Ludwig Grell
  • Publication number: 20070059529
    Abstract: The present invention relates to a process for producing a wear-resistant coating and to a wear-resistant coating on predetermined surfaces (2) of machine or engine parts (1) consisting of a sintered material which are exposed to frictional wear, for fuel feed units in particular, comprising at least one metal-free amorphous hydrocarbon layer (5) with sp2 - and sp3-hybridized carbon applied to the predetermined surface (2) of the machine or engine part (1) for reducing friction and increasing the wear resistance of the predetermined surface (2) of the machine or engine part (1).
    Type: Application
    Filed: September 8, 2006
    Publication date: March 15, 2007
    Inventors: Tim Hosenfeldt, Martin Kramer, Alexander Freiburg
  • Publication number: 20060225682
    Abstract: A switchable valve-drive component (1) for variable transmission of a stroke generated by one or more cam projections to a gas-exchange valve of an internal combustion engine is provided. The valve-drive component (1) has transmission elements (3, 4), which can be connected with a positive fit by coupling elements (8) in the transmission direction, in which force transmission surface sections (16) of the coupling elements (8) can be clamped between force transmission surface sections (20) of the transmission elements (3, 4). Here, at least one of the force transmission surface sections (16, 20) should be provided with a wear protection layer (23). This layer comprises at least one metal-free amorphous hydrocarbon layer with sp2-hybridized and sp3-hybridized carbon.
    Type: Application
    Filed: March 14, 2006
    Publication date: October 12, 2006
    Applicant: Schaeffler KG
    Inventors: Matthew Evans, Jermel Jones, Peter Sailer, Oliver Schnell, Tim Hosenfeldt
  • Publication number: 20060049035
    Abstract: The present invention relates to a process for producing a wear-resistant coating and to a wear-resistant coating on predetermined surfaces of machine or engine parts, in particular for internal combustion engines, which are exposed to frictional wear, comprising at least one nanocrystalline functional layer (4) made up of at least two CrNx phases for reducing friction and increasing the wear resistance of the predetermined surface (2) of the machine or engine part (1).
    Type: Application
    Filed: September 7, 2005
    Publication date: March 9, 2006
    Inventors: Tim Hosenfeldt, Karl-Ludwig Grell
  • Publication number: 20060046060
    Abstract: A process for producing a wear-resistant coating and a wear-resistant coating on a surfaces of machine or engine parts which are exposed to frictional wear. This has in particular use for internal combustion engines. The coating comprises at least one metal-free, amorphous hydrocarbon layer which includes sp2- and sp3-hybridized carbon applied to the surface of the machine part, for reducing friction and increasing the wear resistance of the surface of the machine or engine part.
    Type: Application
    Filed: August 24, 2005
    Publication date: March 2, 2006
    Inventors: Bodo Rorig, Tim Hosenfeldt