Patents by Inventor Holger Stühff

Holger Stühff 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: 11879594
    Abstract: A method for manufacturing tanks for storing or containing a fluid under pressure and a method for manufacturing pipes for containing or channeling a fluid under pressure, such as for storing, containing or channeling hydrogen, natural gas or a hydraulic fluid. The method is less complex than known procedures, can be employed in a continuous or semi-continuous manner and allows for a lower thickness of the shell made from the fibres. The method comprising providing a liner having a cylindrical portion with two ends and two dome portions at the respective ends of the cylindrical portions or a liner having a cylindrical portion and one or two open ends; fabricating a tube of fibre filaments by means of the pullwinding method; and wrapping the tube of fibre filaments onto the liner such that at least the cylindrical portion of the liner is enclosed by the tube of fibre filaments.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: January 23, 2024
    Assignees: Helmholtz-Zentrum hereon GmbH, assemblae, Stühff GmbH
    Inventors: Julián Puszkiel, José M. Bellosta Von Colbe, Anton Nijkamp, Holger Stühff, Julian Jepsen, Martin Dornheim, Thomas Klassen
  • Patent number: 11845659
    Abstract: The present invention relates to a composite material for hydrogen storage based on metal hydrides and to a method of operating a hydrogen storage system based on metal hydrides capable of releasing and absorbing hydrogen. Such hydrogen storage systems based on metal hydrides may be applicable as a fuel source for a fuel cell. The composite material for hydrogen storage comprises a powder or pellets of a hydride and a phase changing material (PCM), wherein the PCM is an encapsulated phase changing material (EPCM) which is homogeneously dispersed within the powder or pellets of the hydride.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: December 19, 2023
    Assignees: Helmholtz-Zentrum hereon GmbH, Stühff GmbH
    Inventors: José M. Bellosta Von Colbe, Thomas Klassen, Martin Dornheim, Julian Jepsen, Klaus Horst Taube, Giovanni Capurso, Holger Stühff
  • Publication number: 20230045434
    Abstract: A cold start device for an exothermic hydrogen consumer such as a fuel cell, as well as a method for operating an exothermic hydrogen consumer with a metal hydride storage system. An exothermic hydrogen consumer such as a fuel cell with an efficient cold start device which can be brought into operation rapidly and. does not require a pressure tank is provided. The cold start device is available for an unlimited number of start-up procedures. At least one starter tank is filled with a metal hydride which has an equilibrium pressure for desorption of at least 100 kPa at a temperature of ?40° C., as well as at least one operating tank which is filled with at least one metal hydride, which has an equilibrium pressure of <100 kPa at temperatures of <0° C., and wherein the starter tank is incorporated into the operating tank.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 9, 2023
    Inventors: Julian Jepsen, José M. Bellosta Von Colbe, Thomas Klassen, Martin Dornheim, Klaus Taube, Julián Puszkiel, Anna Kallias, Holger Stühff, Dieter Platzek, Ignasi Cabezas Marce
  • Publication number: 20220340417
    Abstract: The present invention relates to a composite material for hydrogen storage based on metal hydrides and to a method of operating a hydrogen storage system based on metal hydrides capable of releasing and absorbing hydrogen. Such hydrogen storage systems based on metal hydrides may be applicable as a fuel source for a fuel cell. The composite material for hydrogen storage comprises a powder or pellets of a hydride and a phase changing material (PCM), wherein the PCM is an encapsulated phase changing material (EPCM) which is homogeneously dispersed within the powder or pellets of the hydride.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 27, 2022
    Applicants: Helmholtz-Zentrum hereon Gmbh, Stühff GmbH
    Inventors: José M. Bellosta Von Colbe, Thomas Klassen, Martin Dornheim, Julian Jepsen, Klaus Horst Taube, Giovanni Capurso, Holger Stühff
  • Publication number: 20220002150
    Abstract: The present invention relates to a composite material for hydrogen storage based on metal hydrides and to a method of operating a hydrogen storage system based on metal hydrides capable of releasing and absorbing hydrogen. Such hydrogen storage systems based on metal hydrides may be applicable as a fuel source for a fuel cell. The composite material for hydrogen storage comprises a powder or pellets of a hydride and a phase changing material (PCM), wherein the PCM is an encapsulated phase changing material (EPCM) which is homogeneously dispersed within the powder or pellets of the hydride.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Applicants: Helmholtz-Zentrum hereon Gmbh, Stühff GmbH
    Inventors: José M. Bellosta Von Colbe, Thomas Klassen, Martin Dornheim, Julian Jepsen, Klaus Horst Taube, Giovanni Capurso, Holger Stühff
  • Publication number: 20210222831
    Abstract: A method for manufacturing tanks for storing or containing a fluid under pressure and a method for manufacturing pipes for containing or channeling a fluid under pressure, such as for storing, containing or channeling hydrogen, natural gas or a hydraulic fluid. The method is less complex than known procedures, can be employed in a continuous or semi-continuous manner and allows for a lower thickness of the shell made from the fibres. The method comprising providing a liner having a cylindrical portion with two ends and two dome portions at the respective ends of the cylindrical portions or a liner having a cylindrical portion and one or two open ends; fabricating a tube of fibre filaments by means of the pullwinding method; and wrapping the tube of fibre filaments onto the liner such that at least the cylindrical portion of the liner is enclosed by the tube of fibre filaments.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 22, 2021
    Applicants: Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH, assemblae, Stühff GmbH
    Inventors: Julián Puszkiel, José M. Bellosta Von Colbe, Anton Nijkamp, Holger Stühff, Julian Jepsen, Martin Dornheim, Thomas Klassen