Patents by Inventor Stefan Lindner

Stefan Lindner 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: 11967727
    Abstract: The invention relates to a manufacturing method for a crash frame of a battery compartment for electric drive vehicles by using metallic sheets which are arranged on top of one another and fixed together and which form in a following step a space by using an inner active media forming process to create walls of a crash frame whereby the space works as a deformation space to protect the battery modules inside the battery compartment against an impact. The invention further relates to the use of the crash frame for a battery compartment.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: April 23, 2024
    Assignee: Outokumpu Oyj
    Inventors: Martin Poloczek, Thomas Hündgen, Stefan Lindner
  • Publication number: 20240100818
    Abstract: A method for producing separated strip-like laminate components including an electronic component embedded between two laminate layers of a tape-like material. Individual components are placed at defined intervals by a placement device onto a tape-like, lower first laminate layer moved in a conveying direction by a transport device, after which a tape-like, upper second laminate layer moved in the conveying direction is applied to the first laminate layer with embedding of the components to form a laminate tape. The individual strip-like laminate components are cut from the laminate tape by a cutting device having a movable cutting blade, which laminate components are picked up by a gripper device and transported away. The front end of the laminate tape is gripped by the gripper device in the region of a component and moved synchronously with the clocked movement of the transport device by a predetermined distance through the cutting device and positioned relative to the cutting blade.
    Type: Application
    Filed: September 12, 2023
    Publication date: March 28, 2024
    Inventors: Stefan LINDNER, Frank SCHMIDT, Matthias SCHNEIDER
  • Patent number: 11904582
    Abstract: The invention relates to the use of layer structures in the production of rotor blades for wind power plants, and to rotor blades for wind power plants.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 20, 2024
    Assignee: Covestro Deutschland AG
    Inventors: Dirk Passmann, Klaus Franken, Stefan Lindner
  • Patent number: 11870048
    Abstract: The invention relates to a supporting housing for a battery compartment of electric drive vehicles by using flat metallic sheets as deep-drawn shells which are fitted into each other whereby at least one double-floor is created into which a passive and partly integrated thermal management system for cooling and heating is integrated. The invention also relates to the integration of further functionality-elements like sensors for status measurement are integrated into the “double-floor” and connected with the battery management system.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 9, 2024
    Assignee: Outokumpu Oyj
    Inventors: Thomas Fröhlich, Stefan Lindner
  • Patent number: 11788176
    Abstract: A steel for manufacturing a component by hot forming after austenization includes in weight % less than or equal to 0.2%, carbon (C), less than or equal to 3.5% silicon (Si), 1.5-16.0% manganese (Mn), 8.0-14.0% chromium (Cr), less than or equal to 6.0% nickel (Ni), less than or equal to 1.0% nitrogen (N), less than or equal to 1.2% niobium (Nb) linked to the formula Nb=4x(C+N), less than or equal to 1.2% titanium (Ti) so that Ti=4x(C+N)+0.15, and optionally less than or equal to 2.0% molybdenum (Mo), less than or equal to 0.15% vanadium (V), less than or equal to 2.0% copper (Cu), less than 0.2% aluminum (Al), less than or equal to 0.05% boron (B), the rest being iron and evitable impurities.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 17, 2023
    Assignee: OUTOKUMPU OYJ
    Inventors: Jasminko Skrlec, Stefan Lindner
  • Publication number: 20230060627
    Abstract: The present invention relates to a motor vehicle crash box with a working direction in vehicle's longitudinal axis manufactured out of a tube which is expanded into different zones, wherein the zones are different in strength and diameter by using steel after forming a homogenous austenitic microstructure with a strain hardening effect. The present invention further relates to the manufacturing method of such a component.
    Type: Application
    Filed: January 28, 2021
    Publication date: March 2, 2023
    Inventor: Stefan LINDNER
  • Patent number: 11572435
    Abstract: The present invention relates to a process for producing polyurethanes having reduced aldehyde emissions using large amounts of phenolic antioxidants. The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: February 7, 2023
    Assignee: Covestro Deutschland AG
    Inventor: Stefan Lindner
  • Patent number: 11548087
    Abstract: A method for joining of at least two materials, non-weldable directly to each other with thermal joining processes in a lap joint configuration includes a two step sequence including a first step to apply a thermomechanical or mechanical surface protection layer on the surface of a (stainless) steel substrate and a second step where, a thermal joining process is used to weld the sprayed layer with an applied aluminum sheet without having brittle intermetallic phases in the whole material configuration.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: January 10, 2023
    Assignee: Outokumpu Oyj
    Inventors: Christian Dömkes, Thomas Hündgen, Stefan Lindner
  • Patent number: 11524351
    Abstract: Method for joining of at least two unweldable materials, non-weldable directly to each other with thermal joining processes in a lap joint configuration, where a two step sequence is used consisting of a first step to apply a thermomechanical or mechanical surface protection layer on the surface of an unweldable material and a second step, where a thermal joining process is used to joint the sprayed layer with an applied layer sheet.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: December 13, 2022
    Assignee: Outokumpu Oyj
    Inventors: Thomas Hündgen, Stefan Lindner
  • Publication number: 20220324132
    Abstract: A cutting device for cutting narrow strips from a material web in or on which magnetically couplable elements are embedded or arranged at defined spacings behind one another in the web longitudinal direction, including a blade table arranged on a device frame, and on which the material web to be cut can be positioned, a cutting apparatus including a cutting blade which can be moved out of a starting position into a cutting position relative to the blade table, and a gripping device which receives and transports a cut strip and can be moved relative to the blade table.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 13, 2022
    Inventors: Stefan LINDNER, Michael SCHMIDT, Manuel SCHMITT
  • Publication number: 20220316818
    Abstract: A cooling system including a first sheet steel item having a first surface configured to accommodate one or more objects to be cooled, and a second surface joined to a first surface of a second sheet steel item forming a shell. The items may be joined by a weld, a rivet or a plurality thereof. At least one of the second surface of the first sheet steel item and the first surface of the second sheet steel item may be formed to produce one or more conduits for forming one or more channels, whereby said joining forms said channels for coolant in a space between the second surface of the first sheet steel item and the first surface of the second sheet steel item.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 6, 2022
    Inventors: Thomas Fröhlich, Stefan Lindner
  • Publication number: 20220213255
    Abstract: A process for producing an amine-based polyol by reacting a tertiary amine with various epoxides in two or more steps. The present disclosure also relates to the amine-based polyol obtained by this process and the use of the amine-based polyol in the production of polyurethanes, wherein the polyurethanes are preferably synthesized based on toluene diisocyanate (TDI) and are preferably molded foams.
    Type: Application
    Filed: June 24, 2020
    Publication date: July 7, 2022
    Inventors: Stefan Lindner, Klaus Lorenz
  • Publication number: 20220195107
    Abstract: The present invention relates to a process for producing polyurethanes, preferably polyurethane foams, by reaction of compounds containing isocyanate-reactive hydrogen atoms with di- and/or polyisocyanates in the presence of one or more compounds selected from the group consisting of: NC—CHR1—CON R12—X??(I), NC—CHR2—CONR3-aryl??(II), NC—CHR4—CO2H??(III), [NC—CHR5—CO2]mYm+??(IV), wherein X represents NR6R7, OR8, CONR9R10 or COOR11, R1 to R12 each independently of one another represent H, an optionally substituted C1-C8 alkyl group or an optionally substituted aryl group, Y represents a monovalent or divalent cation and m represents 1 or 2. The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.
    Type: Application
    Filed: March 11, 2022
    Publication date: June 23, 2022
    Inventors: Rolf ALBACH, Petra VENNER, Stefan LINDNER
  • Patent number: 11352678
    Abstract: A method for partial hardening of an austenitic steel by utilizing during cold deformation the TWIP (Twinning Induced Plasticity), TWIP/TRIP or TRIP (Transformation Induced Plasticity) hardening effect. Cold deformation is carried out by cold rolling at least one surface of the steel with forming degree (?) of 5???60% in order to achieve in the steel at least two consecutive areas with different mechanical values in thickness, yield strength (Rp0.2), tensile strength (Rm) and elongation, having a ratio (r) between the ultimate load ratio (?F) and the thickness ratio (?t) of 1.0>r>2.0, and in which the areas are mechanically connected to each other by a transition area having a thickness that is variable from the thickness of the first area in the deformation direction to the thickness of the second area in the deformation direction.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: June 7, 2022
    Assignee: Outokumpu Oyj
    Inventors: Thomas Fröhlich, Stefan Lindner, Thorsten Piniek
  • Patent number: 11247252
    Abstract: The present invention relates to a method for manufacturing a component of austenitic TWIP or TRIP/TWIP steel. A flat product (1) is deformed by achieving at least one indentation (16) on at least one surface of the flat product (1) in order to have in the deformed product (5) areas of a high strength steel embedded in a matrix of a ductile material. The invention also relates to the use of the component where areas of a high strength steel embedded in a matrix of a ductile material are required in the same component.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: February 15, 2022
    Assignee: Outokumpu Oyj
    Inventors: Thomas Fröhlich, Stefan Lindner
  • Patent number: 11192165
    Abstract: The present invention relates to a method for manufacturing a complex-formed component by using austenitic steels in a multi-stage process where cold forming and heating are alternated for at least two multi-stage process steps. The material during every process step and a component produced has an austenitic microstructure with non-magnetic reversible properties.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: December 7, 2021
    Assignee: Outokumpu Oyj
    Inventors: Thomas Fröhlich, Stefan Lindner
  • Publication number: 20210351469
    Abstract: The invention relates to a manufacturing method for a crash frame of a battery compartment for electric drive vehicles by using metallic sheets which are arranged on top of one another and fixed together and which form in a following step a space by using an inner active media forming process to create walls of a crash frame whereby the space works as a deformation space to protect the battery modules inside the battery compartment against an impact. The invention further relates to the use of the crash frame for a battery compartment.
    Type: Application
    Filed: October 8, 2019
    Publication date: November 11, 2021
    Inventors: Martin POLOCZEK, Thomas HÜNDGEN, Stefan LINDNER
  • Publication number: 20210292467
    Abstract: The present invention relates to a process for producing polyurethanes having reduced aldehyde emissions using large amounts of phenolic antioxidants. The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.
    Type: Application
    Filed: September 12, 2017
    Publication date: September 23, 2021
    Inventor: Stefan LINDNER
  • Publication number: 20210226279
    Abstract: The invention relates to a supporting housing for a battery compartment of electric drive vehicles by using flat metallic sheets as deep-drawn shells which are fitted into each other whereby at least one double-floor is created into which a passive and partly integrated thermal management system for cooling and heating is integrated. The invention also relates to the integration of further functionality-elements like sensors for status measurement are integrated into the “double-floor” and connected with the battery management system.
    Type: Application
    Filed: June 3, 2019
    Publication date: July 22, 2021
    Inventors: Thomas FRÖHLICH, Stefan LINDNER
  • Publication number: 20210189518
    Abstract: The invention relates to a method for partial hardening of a steel sheet by cold deformation, where the partial hardening of a steel is done by a cold deformation with a multi-step rolling and annealing process and in order to have a steel sheet with a homogeneous thickness steel sheet is used with at least two areas having different values in mechanical and/or physical properties in longitudinal direction of the material.
    Type: Application
    Filed: October 10, 2018
    Publication date: June 24, 2021
    Inventors: Stefan LINDNER, Claire HEIDECKER