Patents by Inventor Severin Seifert

Severin Seifert 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: 11857978
    Abstract: A fragmentation system for electrodynamic fragmentation of material contains a feed and an outlet for transporting material along a transport path in a transport direction. At least one high-voltage pulse source is provided, each of the high-voltage pulse sources contains at least one first electrode and at least one second electrode for generating a high-voltage discharge in a discharge chamber. The transport path has a fractionation section, and the fractionation section extends through the discharge chamber. A selection device for selectively extracting the material on the transport path is provided in order to channel material and/or fragments of the material having a diameter smaller than a minimum diameter past at least one portion of one of the fractionation sections.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: January 2, 2024
    Assignees: Diehl Defence GmbH & Co. KG, Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e. V.
    Inventors: Robert Stark, Volker Thome, Severin Seifert, Sebastian Dittrich, Christian Bickes, Juergen Urban
  • Publication number: 20230397639
    Abstract: The present invention relates to a method for forming fruit and vegetables by means of ultrasonic waves, to a convenience food item comprising fruit and vegetables formed in this way, and to the use of ultrasonic waves for forming fruit and vegetables.
    Type: Application
    Filed: October 26, 2021
    Publication date: December 14, 2023
    Inventors: Christian Kaiser, Severin Seifert, Christine Kalina, Sebastian Dittrich
  • Publication number: 20230219850
    Abstract: The present invention relates to calcium-containing, porous, mineral materials having a sulfate content of not more than 1.5% by weight and a biopolymer content in the range of 0.001 to 5.00% by weight, each relative to the total weight of the materials, a method for producing these materials with the aid of biopolymers as stabilizers and the use of biopolymers for producing sulfate-poor calcium-containing, porous, mineral materials.
    Type: Application
    Filed: June 30, 2021
    Publication date: July 13, 2023
    Inventors: Christian Kaiser, Volker Thome, Severin Seifert, Sebastian Dittrich, Georg Schober
  • Publication number: 20230146063
    Abstract: The present invention relates to an autoclaved aerated concrete having a content of tobermorite of at least 12.5 wt % and a content of amorphous CSH phases of at least 30 wt %, based on the total weight amount of autoclaved aerated concrete, the process for producing said autoclaved aerated concrete using a silica source, which comprises a soluble silica species and a low curing temperature and the use of a silica source, which comprises a soluble silica species for the production of an autoclaved aerated concrete.
    Type: Application
    Filed: April 19, 2021
    Publication date: May 11, 2023
    Inventors: Taban Shamshafshejani, Georg Schober, Severin Seifert
  • Publication number: 20220372301
    Abstract: The present invention relates to a process for the processing and/or purification of carbon black comprising the steps of: a) providing carbon black containing impurities b) providing an aqueous fluid comprising a nitrogen hydride c) providing an alkali metal hydroxide and/or an alkali metal d) contacting the mixture of step a), the fluid of step b) and the alkali metal hydroxide and/or alkali metal of step c) e) subjecting the composition obtained in step d) to an elevated temperature in the range of 80 to 240° C. and an elevated pressure in the range of 5 to 50 bar f) separating a carbonaceous solid from the composition obtained in step e). The present invention further relates to the use of a nitrogen hydride as a dispersing agent for producing and/or stabilizing an aqueous suspension.
    Type: Application
    Filed: July 8, 2020
    Publication date: November 24, 2022
    Inventors: Christian Kaiser, Volker Thome, Severin Seifert, Sebastian Dittrich
  • Publication number: 20210319377
    Abstract: The subject matter of the present application relates to a test method for determining the risk potential of an alkali-silica reaction in mineral construction materials such as concrete. The test method may be characterized by the steps of: a) examining (220) a sample (12) by means of Raman spectroscopy for providing a structural characterization (230) of the sample (12), b) comparing (240) the examination result to values (250) stored in a database, and c) using (260) the result of the comparison (240) for ascertaining (270) a risk potential for the concrete for an alkali-silica reaction.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 14, 2021
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: SEBASTIAN DITTRICH, VOLKER THOME, SEVERIN SEIFERT, MIRIAM KRÜGER
  • Publication number: 20210069724
    Abstract: A fragmentation system for electrodynamic fragmentation of material contains a feed and an outlet for transporting material along a transport path in a transport direction. At least one high-voltage pulse source is provided, each of the high-voltage pulse sources contains at least one first electrode and at least one second electrode for generating a high-voltage discharge in a discharge chamber. The transport path has a fractionation section, and the fractionation section extends through the discharge chamber. A selection device for selectively extracting the material on the transport path is provided in order to channel material and/or fragments of the material having a diameter smaller than a minimum diameter past at least one portion of one of the fractionation sections.
    Type: Application
    Filed: October 28, 2020
    Publication date: March 11, 2021
    Inventors: Robert Stark, Volker Thome, Severin Seifert, Sebastian Dittrich, Christian Bickes, Juergen Urban
  • Patent number: 9603683
    Abstract: A method for producing a dental restoration (D) by CAD casting is described, said method comprising the steps of a) recording three-dimensional, digital data of the dentition or of a part of the dentition of a patient, b) creating a virtual dental restoration (VD) using the recorded three-dimensional, digital data, wherein the virtual dental restoration (VD) is expanded in relation to the dental restoration (D) to be produced, c) preparing a model (M) using the created virtual dental restoration, such that the model (M) is expanded in relation to the dental restoration (D) to be produced, d) embedding the model (M) in an embedding compound (EM), e) hardening the embedding compound (EM) and removing the model (M), such that a casting mold is obtained, f) filling the casting mold, preferably by pouring, with a casting material (GM) and cooling the casting material (GM), such that the dental restoration (D) is obtained, and optionally the further steps of g) working the dental restoration (D), and h) veneering t
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: March 28, 2017
    Assignee: BEGO BREMER GOLDSCHLAGEREI WILH. HERBST GMBH & CO. KG
    Inventors: Stephan Dierkes, Severin Seifert, Roland Strietzel
  • Publication number: 20140008826
    Abstract: A method for producing a dental restoration (D) by CAD casting is described, said method comprising the steps of a) recording three-dimensional, digital data of the dentition or of a part of the dentition of a patient, b) creating a virtual dental restoration (VD) using the recorded three-dimensional, digital data, wherein the virtual dental restoration (VD) is expanded in relation to the dental restoration (D) to be produced, c) preparing a model (M) using the created virtual dental restoration, such that the model (M) is expanded in relation to the dental restoration (D) to be produced, d) embedding the model (M) in an embedding compound (EM), e) hardening the embedding compound (EM) and removing the model (M), such that a casting mold is obtained, f) filling the casting mold, preferably by pouring, with a casting material (GM) and cooling the casting material (GM), such that the dental restoration (D) is obtained, and optionally the further steps of c) working the dental restoration (D), and h) veneering t
    Type: Application
    Filed: December 23, 2011
    Publication date: January 9, 2014
    Applicant: BEGO BREMER GOLDSCHLAGEREI WILH. HERBST GMBH & CO. KG
    Inventors: Stephan Dierkes, Severin Seifert, Roland Strietzel