Patents by Inventor Volker Wiegmann

Volker Wiegmann 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: 12196418
    Abstract: A method for the post-combustion of exhaust gases comprising carbon monoxide from metallurgical processes includes conditioning the exhaust gas prior to post-combustion by metering a combustion gas and/or one additional gas in feedback-controlled fashion. The feedback control depends on the composition of the exhaust gas dependent on the exhaust gas volume flow. A device for post-combustion of exhaust gas during vacuum treatment of liquid steel comprises a flare stack at an exhaust outlet, means for feeding combustion gas to the flare stack, means for feeding an inert gas into the exhaust gas channel of the vacuum pump, means for ascertaining the exhaust gas volume flow and/or for measuring the exhaust gas velocity within the exhaust gas channel, means for analyzing the exhaust gas composition, means for metering the combustion gas and the inert gas, and means for feedback control of the metering of the combustion gas and/or the inert gas dependent on the exhaust gas composition.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: January 14, 2025
    Assignee: SMS group GmbH
    Inventors: Volker Wiegmann, Frank Dorstewitz, Andreas Kemminger, Helmut Biehl
  • Publication number: 20230279527
    Abstract: A method for producing steel strip, in particular hot strip in the form of coiled coils or in the form of folded individual sheets, in which a steel melt is first produced, this is then formed into a strand in a continuous casting system, the strand is then fed into a heating unit and the heated strand is then rolled into hot strip in a subsequent rolling mill. The casting of the strand, the passage through the heating unit, and the rolling take place in a continuous process. To be able to produce hot-rolled steel strips in the most energy-efficient way possible and to make these strips available for further processing into high-quality cold-rolled and, if necessary, coated strips, the invention provides that, first of all, a steel melt is produced.
    Type: Application
    Filed: June 29, 2021
    Publication date: September 7, 2023
    Applicant: SMS GROUP GMBH
    Inventors: Ingo SCHUSTER, Thomas HENKEL, Volker WIEGMANN, Markus REIFFERSCHEID, Hans FERKEL
  • Publication number: 20220412554
    Abstract: A method for the post-combustion of exhaust gases comprising carbon monoxide from metallurgical processes includes conditioning the exhaust gas prior to post-combustion by metering a combustion gas and/or one additional gas in feedback-controlled fashion. The feedback control depends on the composition of the exhaust gas dependent on the exhaust gas volume flow. A device for post-combustion of exhaust gas during vacuum treatment of liquid steel comprises a flare stack at an exhaust outlet, means for feeding combustion gas to the flare stack, means for feeding an inert gas into the exhaust gas channel of the vacuum pump, means for ascertaining the exhaust gas volume flow and/or for measuring the exhaust gas velocity within the exhaust gas channel, means for analyzing the exhaust gas composition, means for metering the combustion gas and the inert gas, and means for feedback control of the metering of the combustion gas and/or the inert gas dependent on the exhaust gas composition.
    Type: Application
    Filed: November 23, 2020
    Publication date: December 29, 2022
    Applicant: SMS group GmbH
    Inventors: Volker WIEGMANN, Frank DORSTEWITZ, Andreas KEMMINGER, Helmut BIEHL
  • Patent number: 7790258
    Abstract: Self-adhesive, flexible sealing tapes, comprising at least one flexible, self-adhesive core or at least one flexible, self-abhesive carrier layer provided with an envelope or two-sided coating consisting of a second adhesive system.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: September 7, 2010
    Assignee: Lohmann GmbH & Co. KG
    Inventors: Walter Blum, Dirk Wester, Volker Wiegmann
  • Publication number: 20100159131
    Abstract: Self-adhesive, flexible sealing tapes, comprising at least one flexible, self-adhesive core or at least one flexible, self-adhesive carrier layer provided with an envelope or two-sided coating consisting of a second adhesive system.
    Type: Application
    Filed: February 18, 2010
    Publication date: June 24, 2010
    Applicant: Lohmann GmbH & Co. KG
    Inventors: Walter Blum, Dirk Wester, Volker Wiegmann
  • Publication number: 20070148443
    Abstract: Self-adhesive, flexible sealing tapes, comprising at least one flexible, self-adhesive core or at least one flexible, self-adhesive carrier layer provided with an envelope or two-sided coating consisting of a second adhesive system.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 28, 2007
    Applicant: Lohmann GmbH & Co. KG
    Inventors: Walter Blum, Dirk Wester, Volker Wiegmann
  • Patent number: 6235084
    Abstract: The invention relates to a process for decarburizing a steel melt in a closed metallurgical vessel that is connected to a vacuum unit which includes reducing pressure in the vessel to below 100 mbar, introducing replenishment oxygen to implement the removal of carbon, introducing a predetermined additional amount of oxygen, and introducing a combustible metallic substance with the additional amount of oxygen. The invention also relates to an apparatus for performing the above process including the closable vessel, measurement elements for determining melt temperature and pressure, and a controller for controlling the amount of additional oxygen and combustible metallic substance in response to the melt temperature and pressure.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: May 22, 2001
    Assignee: Mannesmann AG
    Inventors: Horst-Dieter Schöler, Volker Wiegmann, Rainer Dittrich, Frank Haers, Leo Peeters