Patents by Inventor Holger Aretz

Holger Aretz 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: 20250075293
    Abstract: A battery cell housing having an aluminium alloy strip or sheet. The object of providing a battery cell housing having an aluminium alloy strip or sheet which, on the one hand, makes it possible to achieve recycling rates and, on the other hand, satisfies the requirements of a battery cell housing, in particular with regard to strength, electrolyte stability and electrical and thermal conductivity, is achieved in that the aluminium alloy strip or sheet has an aluminium alloy with the following alloy constituents in wt %: 0.1%?Si?0.5%, 0.25%?Fe?0.8%, Cu?0.6%, 0.6%?Mn?1.4%, 0.5%?Fe?1.5%, Cr?0.25%, Zn?0.4%, 0.005%?Ti?0.2%, the remainder being Al and unavoidable impurities, individually at most 0.05% and in total at most 0.15%.
    Type: Application
    Filed: November 19, 2024
    Publication date: March 6, 2025
    Applicant: Speira GmbH
    Inventors: Martin Christoph Lentz, Andreas Siemen, Holger Aretz, Hartmut Janssen, Volker Denkmann, Mathis Ruppert, Thiemo Brüggemann, Waldemar Krieger, Philipp Kramer
  • Patent number: 12180566
    Abstract: A battery cell housing having an aluminium alloy strip or sheet. The object of providing a battery cell housing having an aluminium alloy strip or sheet which, on the one hand, makes it possible to achieve recycling rates and, on the other hand, satisfies the requirements of a battery cell housing, in particular with regard to strength, electrolyte stability and electrical and thermal conductivity, is achieved in that the aluminium alloy strip or sheet has an aluminium alloy with the following alloy constituents in wt %: 0.1%?Si?0.5%, 0.25%?Fe?0.8%, Cu?0.6%, 0.6%?Mn?1.4%, 0.5%?Fe?1.5%, Cr?0.25%, Zn?0.4%, 0.005%?Ti?0.2%, the remainder being Al and unavoidable impurities, individually at most 0.05% and in total at most 0.15%.
    Type: Grant
    Filed: March 29, 2024
    Date of Patent: December 31, 2024
    Assignee: Speira GmbH
    Inventors: Martin Christoph Lentz, Andreas Siemen, Holger Aretz, Hartmut Janssen, Volker Denkmann, Mathis Ruppert, Thiemo Brüggemann, Waldemar Krieger, Philipp Kramer
  • Publication number: 20240425952
    Abstract: A battery cell housing having an aluminium alloy strip or sheet. The object of providing a battery cell housing having an aluminium alloy strip or sheet which, on the one hand, makes it possible to achieve recycling rates and, on the other hand, satisfies the requirements of a battery cell housing, in particular with regard to strength, electrolyte stability and electrical and thermal conductivity, is achieved in that the aluminium alloy strip or sheet has an aluminium alloy with the following alloy constituents in wt %: 0.1% ?Si?0.5%, 0.25% ?Fe?0.8%, Cu?0.6%, 0.6% ?Mn?1.4%, 0.5% ?Fe?1.5%, Cr?0.25%, Zn?0.4%, 0.005% ?Ti?0.2%, the remainder being Al and unavoidable impurities, individually at most 0.05% and in total at most 0.15%.
    Type: Application
    Filed: March 29, 2024
    Publication date: December 26, 2024
    Applicant: Speira GmbH
    Inventors: Martin Christoph Lentz, Andreas Siemen, Holger Aretz, Hartmut Janssen, Volker Denkmann, Mathis Ruppert, Thiemo Brüggemann, Waldemar Krieger, Philipp Kramer
  • Publication number: 20240240290
    Abstract: A battery cell housing having an aluminium alloy strip or sheet. The object of providing a battery cell housing having an aluminium alloy strip or sheet which, on the one hand, makes it possible to achieve recycling rates and, on the other hand, satisfies the requirements of a battery cell housing, in particular with regard to strength, electrolyte stability and electrical and thermal conductivity, is achieved in that the aluminium alloy strip or sheet has an aluminium alloy with the following alloy constituents in wt %: 0.1%?Si?0.5%, 0.25%?Fe?0.8%, Cu?0.6%, 0.6%?Mn?1.4%, 0.5%?Fe?1.5%, Cr?0.25%, Zn?0.4%, 0.005%?Ti?0.2%, the remainder being Al and unavoidable impurities, individually at most 0.05% and in total at most 0.15%.
    Type: Application
    Filed: March 29, 2024
    Publication date: July 18, 2024
    Applicant: Speira GmbH
    Inventors: Martin Christoph Lentz, Andreas Siemen, Holger Aretz, Hartmut Janssen, Volker Denkmann, Mathis Ruppert, Thiemo Brüggemann, Waldemar Krieger, Philipp Kramer
  • Publication number: 20240200171
    Abstract: An aluminium alloy strip made of an aluminium alloy, a method for manufacturing the aluminium alloy strip and its preferred use are described. The aluminium alloy strip provides resistance to intercrystalline corrosion, strength and improved forming properties, by the aluminium alloy strip having an aluminium alloy with the following composition in % by weight: Si?0.10%, Fe?0.25%, 0.20%?Mn?0.30% 4.72%?Mg?4.95%, Cu?0.10%, Cr?0.02%, Ni?0.01%, Zn?0.10%, Ti?0.04%, remainder being Al with unavoidable impurities individually ?0.05%, in total ?0.15%. The aluminium alloy strip has an average secondary phase density of less than 250 per 1000 ?m2, the total number of secondary phases determined in at least 10 measuring fields in relation to the total measuring surface of all examined measuring fields resulting in the secondary phase density.
    Type: Application
    Filed: February 26, 2024
    Publication date: June 20, 2024
    Applicant: Speira GmbH
    Inventors: Olaf Engler, Holger Aretz, Janina Krause, Martin Cremer
  • Patent number: 10676807
    Abstract: The invention relates to a device for changing the temperature of a metal strip including means for changing the temperature of the metal strip by heating or cooling. By using means for conveying the metal strip, the metal strip is moved in the strip direction relative to the means for changing the temperature of the metal strip. The object of providing a device for changing the temperature of metal strips, which allows improved process control and improved flatness of the treated metal strip, is achieved according to the invention by a device in that means for changing the temperature of the metal strip include a plurality of individual temperature-control means which each heat or cool the metal strip only in some regions, and at least the position of a plurality of the temperature-control means can be individually changed translationally and/or rotationally relative to the metal strip.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 9, 2020
    Assignee: Hydro Aluminium Rolled Products GmbH
    Inventors: Kai-Friedrich Karhausen, Holger Aretz
  • Patent number: 10279385
    Abstract: The invention relates to a method for forming an aluminium composite material which has a core alloy made from an aluminium alloy of type AA5xxx or AA6xxx and at least one outer aluminium alloy layer provided on one or both sides, wherein the aluminium composite material is formed and the outer aluminium alloy layer provided on one or both sides has a yield strength Rp0.2 of 25 MPa to 60 MPa in the soft or solution-annealed state. The method enables the production of large-surface, heavily formed aluminium alloy sheet metal parts, in particular also in outer skin quality.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 7, 2019
    Assignee: Hydro Aluminium Rolled Products GmbH
    Inventors: Henk-Jan Brinkman, Stefan Keller, Olaf Engler, Natalie Hörster, Dietmar Schröder, Holger Aretz
  • Publication number: 20180135156
    Abstract: The invention relates to a device for changing the temperature of a metal strip including means for changing the temperature of the metal strip by heating or cooling. By using means for conveying the metal strip, the metal strip is moved in the strip direction relative to the means for changing the temperature of the metal strip. The object of providing a device for changing the temperature of metal strips, which allows improved process control and improved flatness of the treated metal strip, is achieved according to the invention by a device in that means for changing the temperature of the metal strip include a plurality of individual temperature-control means which each heat or cool the metal strip only in some regions, and at least the position of a plurality of the temperature-control means can be individually changed translationally and/or rotationally relative to the metal strip.
    Type: Application
    Filed: January 10, 2018
    Publication date: May 17, 2018
    Applicant: Hydro Aluminium Rolled Products GmbH
    Inventors: Kai-Friedrich Karhausen, Holger Aretz
  • Publication number: 20180093314
    Abstract: The invention relates to a method for forming an aluminium composite material which has a core alloy made from an aluminium alloy of type AA5xxx or AA6xxx and at least one outer aluminium alloy layer provided on one or both sides, wherein the aluminium composite material is formed and the outer aluminium alloy layer provided on one or both sides has a yield strength Rp0.2 of 25 MPa to 60 MPa in the soft or solution-annealed state. The method enables the production of large-surface, heavily formed aluminium alloy sheet metal parts, in particular also in outer skin quality.
    Type: Application
    Filed: November 22, 2017
    Publication date: April 5, 2018
    Applicant: Hydro Aluminium Rolled Products GmbH
    Inventors: Henk-Jan Brinkman, Stefan Keller, Olaf Engler, Natalie Hörster, Dietmar Schröder, Holger Aretz
  • Patent number: 9855592
    Abstract: The invention relates to a method for forming an aluminum composite material which has a core alloy made from an aluminum alloy of type AA5xxx or AA6xxx and at least one outer aluminum alloy layer provided on one or both sides, wherein the aluminum composite material is formed and the outer aluminum alloy layer provided on one or both sides has a yield strength Rp0.2 of 25 MPa to 60 MPa in the soft or solution-annealed state. The method enables the production of large-surface, heavily formed aluminum alloy sheet metal parts, in particular also in outer skin quality.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: January 2, 2018
    Assignee: Hydro Aluminium Rolled Products GmbH
    Inventors: Henk-Jan Brinkman, Stefan Keller, Olaf Engler, Natalie Hörster, Dietmar Schröder, Holger Aretz
  • Publication number: 20150224556
    Abstract: The invention relates to a method for forming an aluminium composite material which has a core alloy made from an aluminium alloy of type AA5xxx or AA6xxx and at least one outer aluminium alloy layer provided on one or both sides, wherein the aluminium composite material is formed and the outer aluminium alloy layer provided on one or both sides has a yield strength Rp0.2 of 25 MPa to 60 MPa in the soft or solution-annealed state. The method enables the production of large-surface, heavily formed aluminium alloy sheet metal parts, in particular also in outer skin quality.
    Type: Application
    Filed: April 27, 2015
    Publication date: August 13, 2015
    Applicant: HYDRO ALUMINIUM ROLLED PRODUCTS GMBH
    Inventors: Henk-Jan Brinkman, Stefan Keller, Olaf Engler, Natalie Hörster, Dietmar Schröder, Holger Aretz