Patents by Inventor Ulrich Albrecht

Ulrich Albrecht 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: 11529676
    Abstract: An apparatus for continuously casting thin strip has a pair of internally cooled counter-rotatable casting rolls having casting surfaces, the pair of casting rolls laterally positioned to form a gap at a nip between the casting rolls through which a thin metal strip can be cast, where the casting surface of each casting roll has a roll profile extending in an axial direction of the corresponding casting roll; a metal delivery system adapted to deliver molten metal above the nip to form a casting pool; and a temperature altering source external to the casting roll and having one or more zones configured to alter the casting roll profile of at least one of the pair of casting rolls by locally heating or cooling the casting roll.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: December 20, 2022
    Assignee: NUCOR CORPORATION
    Inventors: Robert G. Nooning, Jr., Wilhelm Schmitz, Roland Sellger, Ulrich Albrecht-Frueh
  • Publication number: 20210237147
    Abstract: An apparatus for continuously casting thin strip comprises a pair of internally cooled counter-rotatable casting rolls having casting surfaces, the pair of casting rolls laterally positioned to form a gap at a nip between the casting rolls through which a thin metal strip can be cast, where the casting surface of each casting roll has a roll profile extending in an axial direction of the corresponding casting roll; a metal delivery system adapted to deliver molten metal above the nip to form a casting pool; and a temperature altering source external to the casting roll and having one or more zones configured to alter the casting roll profile of at least one of the pair of casting rolls by locally heating or cooling the casting roll.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 5, 2021
    Inventors: Robert G. NOONING, Jr., Wilhelm SCHMITZ, Roland SELLGER, Ulrich ALBRECHT-FRUEH
  • Patent number: 10988220
    Abstract: A cover device for at least partially closing an underwater opening in a hull of a watercraft includes a variable-volume hollow-chamber lip assembly including at least two hollow-chamber lips and one buoyancy body. The at least one hollow-chamber lip is volume-variable by supplying a fluid to or removing a fluid from an interior thereof, and the at least one hollow-chamber lip assembly is shiftable between an expanded state and a contracted state by supplying or removing the fluid.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 27, 2021
    Assignee: SKF MARINE GMBH
    Inventors: Holger Spardel, Frank Albrecht, Ulrich Albrecht, Kai Danneberg, Uwe Leitloff
  • Publication number: 20200130796
    Abstract: A cover device for at least partially closing an underwater opening in a hull of a watercraft includes a variable-volume hollow-chamber lip assembly including at least two hollow-chamber lips and one buoyancy body. The at least one hollow-chamber lip is volume-variable by supplying a fluid to or removing a fluid from an interior thereof, and the at least one hollow-chamber lip assembly is shiftable between an expanded state and a contracted state by supplying or removing the fluid.
    Type: Application
    Filed: April 27, 2018
    Publication date: April 30, 2020
    Inventors: Holger SPARDEL, Frank ALBRECHT, Ulrich ALBRECHT, Kai DANNEBERG, Uwe LEITLOFF
  • Patent number: 10421522
    Abstract: The invention relates to a cover device for at least sectional closing of an underwater opening in a hull of a watercraft, in particular an opening of a transverse channel of a thruster. According to the invention the cover device includes at least one variable-volume hollow chamber lip including at least one buoyancy body, and the at least one hollow chamber lip is shiftable into an expansion state or into a shrinkage state by supplying or removing a fluid, in particular air. As a result of the variable-volume or inflatable cover device a more reliable and simultaneously lower-maintenance operation of the cover device is given. In addition, the invention has a thruster, in particular a bow or stern-thruster, as subject matter.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: September 24, 2019
    Assignee: SKF Marine GmbH
    Inventors: Michael Zollenkopf, Frank Albrecht, Ulrich Albrecht, Kai Danneberg, Uwe Leitloff, Thomas Siebrecht, Holger Spardel
  • Patent number: 10220923
    Abstract: A fin stabilizer for stabilizing watercraft includes a pivotable stabilizer fin and a receiving space for receiving the stabilizer fin. The stabilizer fin is shiftable from a retracted state in which the stabilizer fin is received in the receiving space to an extended state in which the stabilizer fin extends from the receiving space. Also at least one flexible cover element for at least partially covering an opening of the receiving space, through which opening the stabilizer fin enters and exits the receiving space during retracting and extending, respectively. The stabilizer fin does not contact the at least one cover element when shifting from the retracted state to the extended state.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: March 5, 2019
    Assignee: SKF Marine GmbH
    Inventors: Kai Danneberg, Michael Zollenkopf, Frank Albrecht, Ulrich Albrecht, Uwe Leitloff, Thomas Siebrecht, Holger Spardel
  • Publication number: 20180312223
    Abstract: The invention relates to a cover device for at least sectional closing of an underwater opening in a hull of a watercraft, in particular an opening of a transverse channel of a thruster. According to the invention the cover device includes at least one variable-volume hollow chamber lip including at least one buoyancy body, and the at least one hollow chamber lip is shiftable into an expansion state or into a shrinkage state by supplying or removing a fluid, in particular air. As a result of the variable-volume or inflatable cover device a more reliable and simultaneously lower-maintenance operation of the cover device is given. In addition, the invention has a thruster, in particular a bow or stern-thruster, as subject matter.
    Type: Application
    Filed: October 18, 2016
    Publication date: November 1, 2018
    Inventors: Michael Zollenkopf, Frank Albrecht, Ulrich Albrecht, Kai Danneberg, Uwe Leitloff, Thomas Siebrecht, Holger Spardel
  • Publication number: 20170247090
    Abstract: A fin stabilizer for stabilizing watercraft includes a pivotable stabilizer fin and a receiving space for receiving the stabilizer fin. The stabilizer fin is shiftable from a retracted state in which the stabilizer fin is received in the receiving space to an extended state in which the stabilizer fin extends from the receiving space. Also at least one flexible cover element for at least partially covering an opening of the receiving space, through which opening the stabilizer fin enters and exits the receiving space during retracting and extending, respectively. The stabilizer fin does not contact the at least one over element when shifting from the retracted state to the extended state.
    Type: Application
    Filed: October 22, 2015
    Publication date: August 31, 2017
    Inventors: Kai Danneberg, Michael Zollenkopf, Frank Albrecht, Ulrich Albrecht, Uwe Leitloff, Thomas Siebrecht, Holger Spardel
  • Patent number: 8763679
    Abstract: A casting roll for a two-roll casting device for the casting of metallic strip from a metal melt, in particular a steel melt, includes a roll body, on a casing surface of which a coating consisting of a coating material is applied by thermal spraying, which has a higher degree of hardness than the roll body. The casting roll according to the invention and the two-roll casting device, while easy to manufacture, has not only a long service life, but also allows for the manufacture of cast strips of optimum quality. This is achieved by the fact that the free surface of the coating, after thermal spraying, has a peak number RPc of at least 10 cm?1.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: July 1, 2014
    Assignee: Outokumpu Nirosta GmbH
    Inventors: Ulrich Albrecht-Früh, Roland Sellger, Johann Wilhelm Schmitz, Reiner Kopp, Jörg Lauscher, Martin Franzke
  • Publication number: 20100300643
    Abstract: A casting roll for a two-roll casting device for the casting of metallic strip from a metal melt, in particular a steel melt, includes a roll body, on a casing surface of which a coating consisting of a coating material is applied by thermal spraying, which has a higher degree of hardness than the roll body. The casting roll according to the invention and the two-roll casting device, while easy to manufacture, has not only a long service life, but also allows for the manufacture of cast strips of optimum quality. This is achieved by the fact that the free surface of the coating, after thermal spraying, has a peak number RPc of at least 10 cm?1.
    Type: Application
    Filed: January 24, 2008
    Publication date: December 2, 2010
    Applicant: ThyssenKrupp Nirosta GmbH
    Inventors: Ulrich Albrecht-Frueh, Roland Sellger, Johann Wilhelm Schmitz, Reiner Kopp, Joerg Lauscher, Martin Franzke
  • Publication number: 20070181284
    Abstract: A method for the production of cast steel strip in a continuous procedure includes casting a steel melt into a casting gap having longitudinal sides of which are formed by walls that move during the casting process, to form the steel strip, and holding the steel melt, which is present above the casting gap in a melt pool, under an atmosphere containing nitrogen and hydrogen. This method allows the production of high-quality steel strips having a significantly improved surface composition compared to the prior art in that the hydrogen content of the atmosphere is greater than 0 mol % to 10 mol %, and the Cr, Mo, Nb, Si, Ti, Ni, Mn, C or N contents of the cast steel melt, which are selectively present in each case for adjusting the characteristics of the steel strip, are in each case selected so that a ratio Creq/Nieq?1.7.
    Type: Application
    Filed: October 20, 2004
    Publication date: August 9, 2007
    Applicant: ThyssenKrupp Nirosta GmbH
    Inventors: Ulrich Albrecht-Fruh, Rolf Degenhardt, Andre D'Hone, Roland Sellger, Mark Badowski
  • Patent number: 6524408
    Abstract: To produce sheet steel components optimised for loading, a steel strip is cast between two cooled rolls with a variable nip and the thickness of the steel strip is changed by changing the time of contact between the strand shells and the rolls or by changing the cooling intensity of the rolls on the molten steel cast into the gusset formed by the rolls, thereby changing the thickness of the steel strip. Such a strip has a homogeneous structure and can subsequently be given a special quality by hot or cold rolling for its particular purpose of use.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: February 25, 2003
    Assignee: Thyssen Krupp Stahl AG
    Inventors: Wilhelm Schmitz, Dieter Senk, Ulrich Albrecht-Früh, Reiner Kopp