Patents by Inventor Rolf Brisberger
Rolf Brisberger 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).
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Patent number: 8728244Abstract: A method for descaling a metal strip, in which the metal strip is guided in a direction of conveyance through at least two plasma descaling units, in which it is subjected to a plasma descaling, where the plasma descaling is followed directly or indirectly by an operation in which the metal strip is coated with a coating metal by hot dip galvanizing of the metal strip. The metal strip is coated with the coating metal by a vertical passage process. The coating metal is retained as a coating bath in a coating tank by an electromagnetic seal. The metal strip preheated by the plasma descaling is guided, without exposure to air, from the plasma descaling into a protective gas atmosphere of a continuous furnace necessary for the coating.Type: GrantFiled: April 14, 2011Date of Patent: May 20, 2014Assignee: SMS Siemag AktiengesellschaftInventors: Holger Behrens, Rolf Brisberger, Klaus Adolf Frommann, Matthias Kretschmer, Rüdiger Zerbe, Evgeny Stepanovich Senokosov, Andrei Evgenievich Senokosov
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Patent number: 8347682Abstract: An apparatus for cleaning cylinders (5) and/or rolls (5), e.g., working rolls (5) in a rolling stand, which are used for producing a rolled stock (1) such as strips or slabs, in which a liquid is sprayed onto the cylinders (5) at high pressure through several nozzles D1-Dn, a number of nozzles (D1-Dn) are stationary arranged in and/or on a nozzle beam (10), at least one on-off valve is associated with each nozzle (D1-Dn), and one or several nozzle(s) (D1-Dn) are sequentially switched on and off one after another starting from one end of the nozzle beam.Type: GrantFiled: May 24, 2010Date of Patent: January 8, 2013Assignee: SMS Siemag AktiengesellschaftInventors: Andreas Gramer, Peter De Kock, Rolf Brisberger
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Patent number: 8304029Abstract: The invention relates to a device for hot-dip coating a metal strand (1), especially a steel strip, in which the metal strand (1) is vertically guided through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) disposed upstream thereof. The inventive device comprises at least two inductors (5) disposed at both sides of the metal strand (1) in the area of the guide channel (4) that are used to generate an electromagnetic field for retaining the coating metal (2) in the container (3), and at least one sensor (6, 6?) for detecting the position (s) of the metal strand (1) in the area of the guide channel (4).Type: GrantFiled: November 15, 2003Date of Patent: November 6, 2012Assignee: SMS Siemag AktiengesellschaftInventors: Rolf Brisberger, Bernhard Tenckhoff, Holger Behrens, Bodo Falkenhahn, Walter Trakowski, Michael Zielenbach, Robert Jürgens
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Publication number: 20120255584Abstract: A method of cleaning cylinders (5) and/or rolls (5), e.g., working rolls (5) in a rolling stand, wherein a liquid is sprayed onto the cylinders (5) at high pressure through several nozzles (D1-Dn) of a number of nozzles (D1-Dn) stationary arranged in and/or on a nozzle beam (10), with at least one on-off valve being associated with each nozzle (D1-Dn), and one or several nozzle(s) (D1-Dn) are sequentially switched on and off one after another starting from one end of the nozzle beam.Type: ApplicationFiled: April 13, 2012Publication date: October 11, 2012Inventors: Andreas Gramer, Peter De Kock, Rolf Brisberger
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Patent number: 8057604Abstract: A method and a device for descaling a metal strip, in which the metal strip is guided in a direction of conveyance through at least one plasma descaling unit in which it is subjected to a plasma descaling. The metal strip is subjected to an automatically controlled cooling process in a cooling unit following the plasma descaling in the one or more plasma descaling units in such a way that it has a well-defined temperature downstream of the cooling unit.Type: GrantFiled: March 16, 2006Date of Patent: November 15, 2011Assignee: SMS Siemag AktiengesellschaftInventors: Holger Behrens, Rolf Brisberger, Klaus Frommann, Matthias Kretschmer, Rüdiger Zerbe, Evgeny Stepanovich Senokosov, Andrei Evgenievich Senokosov
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Publication number: 20110195200Abstract: A method and a device for descaling a metal strip, in which the metal strip is guided in a direction of conveyance through at least one plasma descaling unit in which it is subjected to a plasma descaling. The metal strip is subjected to an automatically controlled cooling process in a cooling unit following the plasma descaling in the one or more plasma descaling units in such a way that it has a well-defined temperature downstream of the cooling unit.Type: ApplicationFiled: April 14, 2011Publication date: August 11, 2011Applicant: SMS SIEMAG AKTIENGESELLSCHAFTInventors: Holger Behrens, Rolf Brisberger, Klaus Frommann, Matthias Kretschmer, Rüdiger Zerbe, Evgeny Stepanovich Senokosov, Andrei Evgenievich Senokosov
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Publication number: 20110186224Abstract: A method and a device for descaling a metal strip, in which the metal strip is guided in a direction of conveyance through at least one plasma descaling unit in which it is subjected to a plasma descaling. The metal strip is subjected to an automatically controlled cooling process in a cooling unit following the plasma descaling in the one or more plasma descaling units in such a way that it has a well-defined temperature downstream of the cooling unit.Type: ApplicationFiled: April 14, 2011Publication date: August 4, 2011Applicant: SMS Siemag AktiengesellschaftInventors: Holger Behrens, Rolf Brisberger, Klaus Frommann, Matthias Kretschmer, Rüdiger Zerbe, Evgeny Stepanovich Senokosov, Andrei Evgenievich Senokosov
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Publication number: 20100307546Abstract: An apparatus for cleaning cylinders (5) and/or rolls (5), e.g., working rolls (5) in a rolling stand, which are used for producing a rolled stock (1) such as strips or slabs, in which a liquid is sprayed onto the cylinders (5) at high pressure through several nozzles D1-Dn, a number of nozzles (D1-Dn) are stationary arranged in and/or on a nozzle beam (10), at least one on-off valve is associated with each nozzle (D1-Dn), and one or several nozzle(s) (D1-Dn) are sequentially switched on and off one after another starting from one end of the nozzle beam.Type: ApplicationFiled: May 24, 2010Publication date: December 9, 2010Inventors: Andreas Gramer, Peter De Kock, Rolf Brisberger
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Publication number: 20100112238Abstract: A method for hot dip coating a metal strand includes passing the metal strand vertically through a coating tank that contains molten coating metal and through a guide channel upstream of the coating tank. A electromagnetic field is generated by inductors on both sides of the metal strand and an electromagnetic field superposed on the electromagnetic field of the inductors is generated by supplementary coils on both sides of the metal strand. A center position of the metal strand in the guide channel is stabilized by: (a) measuring the position of the metal strand in the guide channel; (b) measuring the induced current in the inductors; (c) measuring the induced current in the supplementary coils; and (d) influencing the induced current in the supplementary coils as a function of all of the parameters measured in steps (a) to (c).Type: ApplicationFiled: October 24, 2009Publication date: May 6, 2010Inventors: Rolf Brisberger, Bernhard Tenckhoff, Holger Behrens, Bodo Falkenhahn, Walter Trakowski, Michael Zielenbach, Robert Jürgens
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Publication number: 20100050937Abstract: A method for hot dip coating metal strip includes guiding the strip obliquely or vertically through a molten coating metal. The coating thickness is controlled after the strip has emerged from the coating bath, and thin metal strip, which has a tendency to vibrate, is sealed towards the bottom by an electromagnetic traveling field that acts as a sealing field while the coating is laterally guided to compensate for ferromagnetic attraction. The electromagnetic field of one or more main coils in each inductor generates the electromagnetic traveling field as a blocking field or as a pump field, and several correction fields are arranged within the magnet yoke surface. The correction fields are individually determined according to width levels of the metal strip and are distributed according to a production program, and the correction fields are activated by separate pieces of power supply equipment.Type: ApplicationFiled: September 19, 2009Publication date: March 4, 2010Inventors: Holger Behrens, Rolf Brisberger, Bodo Falkenhahn, Hans Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
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Patent number: 7662438Abstract: The invention relates to a method for hot-dip coating a metal strand (1), especially a steel strip, according to which the metal strand (1) is vertically guided through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) disposed upstream thereof. An electromagnetic field is generated in the area of the guide channel (4) by means of at least two inductors (5) disposed at both sides of the metal strand (1) to retain the coating material (2) in the container (3). In order to stabilize the metal strand (1) in a center position in the guide channel (4), an electromagnetic field, superimposing the electromagnetic field of the inductors (5), is generated by means of at least two additional coils (6) disposed at both sides of the metal strand (1).Type: GrantFiled: November 15, 2003Date of Patent: February 16, 2010Assignee: SMS Siemag AktiengesellschaftInventors: Rolf Brisberger, Bernhard Tenckhoff, Holger Behrens, Bodo Falkenhahn, Walter Trakowski, Michael Zielenbach, Robert Jürgens
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Publication number: 20090280270Abstract: The invention relates to a method for the hot dip coating of a metal strip (1), in particular a steel strip, according to which the metal strip (1) is fed vertically through a container (3) that holds the molten coating metal (2) and a guide channel (4) that is connected upstream. According to the invention, to retain the coating metal (2) in the container (3) in the vicinity of the guide channel (4), an electromagnetic field is generated by means of at least two inductors (5) that are situated on either side of the metal strip (1) and to stabilise the metal strip (1) in a central position in the guide channel (4), the electromagnetic excitation of the inductors (5) is modified and/or an electromagnetic field that overlaps the electromagnetic field of the inductors (5) is generated by means of at least two correction coils (6) that are situated on either side of the metal strip (1). The aim of the invention is to control the centring of the metal strip in a manner that is not susceptible to interference.Type: ApplicationFiled: March 29, 2006Publication date: November 12, 2009Inventors: Holger Behrens, Rolf Brisberger, Olaf Norman Jepsen, Michael Zielenbach
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Publication number: 20090272319Abstract: The present invention relates to an apparatus for hot-dip coating of a metal strand, in particular a steel strip, in which the metal strand (1) passes vertically through a vessel containing a melted coating metal (2) and an upstream guide channel (4) in a region of which at least two inductors (5) for producing an electromagnetic field are arranged on both sides of the metal strand (1) for retaining the coating metal (2) in the vessel and an increased volume of the coating metal (2) is available in at least one section (4a). For killing the coating metal bath, according to the invention, the increased volume is provided in a region of the magnetic field of the inductors (5).Type: ApplicationFiled: June 28, 2006Publication date: November 5, 2009Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Ruediger Zerbe
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Patent number: 7601221Abstract: The invention relates to a device for hot-dip coating a metal bar (1), particularly a steel strip, in which the metal bar (1) is vertically directed through a container (3) receiving the molten coating metal (2) and a directing channel (4) that is arranged upstream thereof. Said device comprises at least two inductors (5) which are disposed on both sides of the metal bar (1) in the zone of the directing channel (4) and generate an electromagnetic field for retaining the coating metal (2) within the container (3). In order to better control the coating process, the inventive device is characterized by a sealing means (7, 7?) which is arranged above the directing channel (4) in the bottom area (6) of the container (3) and alternatively releases or interrupts the flow of molten coating metal (2) to the metal bar (1) and/or the directing channel (4).Type: GrantFiled: October 25, 2003Date of Patent: October 13, 2009Assignee: SMS Demag AGInventors: Rolf Brisberger, Bodo Falkenhahn, Holger Behrens, Michael Zielenbach, Bernhard Tenckhoff
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Patent number: 7476276Abstract: The invention relates to a device for hot dip coating a metal bar (1), especially a steel strip, in which the metal bar (1) is directed vertically through a container (3) accommodating the molten coating metal (2) and through a guide channel (4) mounted upstream thereof. The inventive device comprises at least two inductors (5) which are arranged on both sides of the metal bar (1) in the area of the guide channel (4) and generate an electromagnetic field for retaining the coating metal (2) inside the container (3). In order to relax the coating bath, the distance (d) between the walls (6) that delimit the guide channel (4) is not kept constant in a direction (N) extending perpendicular to the surface of the metal strip (1) in the zone (H) of the vertical extension of the guide channel (4), which is located between the bottom side (7) thereof and the bottom area (8) of the container (3).Type: GrantFiled: June 16, 2004Date of Patent: January 13, 2009Assignee: SMS Demag AGInventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bernhard Tenckhoff, Walter Trakowski, Michael Zielenbach
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Publication number: 20080190449Abstract: The invention concerns a method and a device for descaling a metal strip (1), especially a hot-rolled strip of normal steel or a hot-rolled or cold-rolled strip of austenitic or ferritic stainless steel, in which the metal strip (1) is guided in a direction of conveyance (R) through at least one plasma descaling unit (2, 3) in which it is subjected to a plasma descaling. The objective of the invention is to improve the production of this type of metal strip. To this end, the metal strip (1) is subjected to an automatically controlled cooling process in a cooling unit (4, 5) following the plasma descaling in the one or more plasma descaling units (2, 3) in such a way that it has a well-defined temperature downstream of the cooling unit (4, 5). The invention also concerns a method in which the strip is coated with a coating metal after the plasma descaling operation and in which the heating of the strip caused by the plasma descaling operation is utilized in the coating operation.Type: ApplicationFiled: March 16, 2006Publication date: August 14, 2008Inventors: Holger Behrens, Rolf Brisberger, Klaus Frommann, Matthias Kretschmer, Rudiger Zerbe, Evgeny Stepanovich Senokosov, Andrei Evgenievich Senokosov
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Publication number: 20080145569Abstract: The invention relates to a method for hot-dip coating a metal strip (1), particularly a steel strip, in which the metal strip (1) is fed to a receptacle (5) accommodating the melted coating metal (4) through a hole (6) in the bottom area of the receptacle (5) after passing through a furnace (2) and a roll chamber (3) that adjoins the furnace (2) in the direction of travel (F) of the metal strip (1). An electromagnetic field is generated in the bottom area of the receptacle (5) so as to retain the coating metal (4) in the receptacle (5). In order to obtain more advantageous operating conditions especially in case the performance of the hot-dip coating system drops, different gas atmospheres are maintained in at least two separate spaces (7, 8) of the roll chamber (3). The invention further relates to a hot-dip coating device.Type: ApplicationFiled: June 30, 2006Publication date: June 19, 2008Inventors: Holger Behrens, Rolf Brisberger, Hans-Georg Hartung, Bodo Falkenhahn
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Patent number: 7361224Abstract: The invention relates to a device for hot dip coating metal strands (1), particularly strip steel, in which the metal strand (1) can be vertically guided through a reservoir (3), which accommodates the molten coating metal (2), and though a guide channel (4) connected upstream therefrom. An electromagnetic inductor (5) is mounted in the area of the guide channel (4) and in order to retain the coating metal (2) inside the reservoir (3), can induce induction currents in the coating metal (2) by means of an electromagnetic blocking field. While interacting with the electromagnetic blocking field, said induction currents exert an electromagnetic force. In order to prevent an intense heating of the metal strand caused by the electromagnetic inductor, the invention provides that the inductor (5, 5a, 5b) is connected to electric power supply means (6) that supply the inductor with an alternating current whose frequency (f) is less than 500 Hz. In particular, a mains frequency of 50 Hz is intended.Type: GrantFiled: February 20, 2003Date of Patent: April 22, 2008Assignee: SMS Demag AGInventors: Walter Trakowski, Olaf Norman Jepsen, Eckart Schunk, Klaus Frommann, Rolf Brisberger, Holger Behrens, Michael Zielenbach
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Publication number: 20080023043Abstract: With a method of cleaning cylinders (5) and/or rolls (5), e.g., working rolls (5) in a rolling stand, which are used for producing a rolled stock (1) such as strips or slabs, wherein a liquid is sprayed onto the cylinders (5) at high pressure through several nozzles D1-Dn, a number of nozzles (D1-Dn) are stationary arranged in and/or on a nozzle beam (10), at least one on-off valve is associated with each nozzle (D1-Dn), and one or several nozzle(s) (D1-Dn) are sequentially switched on and off one after another starting from one end of the nozzle beam. The invention further relates to a corresponding apparatus.Type: ApplicationFiled: September 12, 2005Publication date: January 31, 2008Applicant: SMS DEMAG AGInventors: Andreas Gramer, Peter De Kock, Rolf Brisberger
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Publication number: 20070172598Abstract: The invention relates to a method for coating a metal bar (1), in particular a steel strap by hot dipping consisting in vertically passing the metal bar (1) through a container (2) containing a molten coating metal (3) and through a guiding channel (4) which is connected in series and has a predefined height (H). In order to retain the coating metal (2) in the container (3), an electromagnetic field is produced at the level of said guiding channel (4) by means of at least two inductors (5) which are arranged on two sides of the metal bar (1). In order to calm the coating bath, a predefined volume flow (Q) of the coating metal (2) is directed towards the guiding channel (4) at the level of the vertical extension (H) thereof. The inventive device for coating a metal bar by hot dipping is also disclosed.Type: ApplicationFiled: March 18, 2004Publication date: July 26, 2007Inventors: Rolf Brisberger, Bernhard Tenckhoff, Holger Behrens, Hans Hartung