Patents by Inventor Bernhard Ehls

Bernhard Ehls 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: 20240165684
    Abstract: A method and a device for guiding and centering a metallic rolling stock in a rolling mill having at least one assembly that is arranged in a rolling line and at least one rolling mill stand for shaping the rolling stock are disclosed. The method includes the use of lateral guide means, which exert a lateral force onto the moving rolling stock at different locations of the rolling line, wherein the method further includes the process of centering the inflow of the rolling stock ahead of a first assembly and/or ahead of a first rolling mill stand of the rolling mill using first lateral guide means and the process of aligning rolling stock downstream transversely to the rolling line using second lateral guide means, wherein the process of centering the inflow includes a funnel-shaped, flat guiding of the rolling stock and a point-shaped guiding of the rolling stock.
    Type: Application
    Filed: January 17, 2022
    Publication date: May 23, 2024
    Applicant: SMS group GmbH
    Inventors: Christian MENGEL, Olaf Norman JEPSEN, Bernhard EHLS, Wolfgang FUCHS
  • Publication number: 20240058854
    Abstract: A coilbox is provided for winding a metal strip to form a coil and for unwinding the metal strip from the coil. In order to further develop a known coilbox in such a manner that the position of the coil is known at all times, in particular during its passive transfer from the winding station to the unwinding station, at least one additional roller rotatably mounted on the frame is provided.
    Type: Application
    Filed: March 24, 2022
    Publication date: February 22, 2024
    Applicant: SMS group GmbH
    Inventors: Frank THEOBALD, Bernhard EHLS
  • Patent number: 11529670
    Abstract: A method for cutting a cast strand or intermediate strip using shears. In order to facilitate improved rolling of the section having significantly reduced thickness, the method according has the following steps: a) bringing part of the completely solidified cast strand or intermediate strip in the conveying direction (F) of the cast strand or intermediate strip in front of the shears; b) placing a first blade of the shears onto the one surface of the cast strand or intermediate strip and placing a second blade of the shears onto the other surface of the cast strand or intermediate strip and performing a cut by carrying out a relative movement of the two blades, wherein at least one of the blades is in a pushed-forward position; c) upset forging or upset forging with stamping a wedge-shaped contour on the end of the cast strand.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: December 20, 2022
    Assignee: SMS group GmbH
    Inventors: Luc Neumann, Michael Pander, Björn Kintscher, Bernhard Ehls
  • Publication number: 20210220929
    Abstract: A device (100) and a method for cooling a knife-bearing element (102.1, 102.2) of a cross-cutting shear (103), which is in particular installed in a hot rolling mill, are described. When the knife-bearing element (102.1, 102.2) is at standstill, at least one guard device (105) is positioned in a cooling position (K) between the knife-bearing element (102.1, 102.2) and a roll strip (101) running continually through the roller mill, such that a side of the knife-bearing element (102.1, 102.2) opposite the roll strip is shielded by the guard device (105).
    Type: Application
    Filed: November 26, 2018
    Publication date: July 22, 2021
    Applicant: SMS group GmbH
    Inventors: Oliver Larsen FREUND, Bernhard EHLS
  • Publication number: 20200261965
    Abstract: A method for cutting a cast strand or intermediate strip using shears. In order to facilitate improved rolling of the section having significantly reduced thickness, the method according has the following steps: a) bringing part of the completely solidified cast strand or intermediate strip in the conveying direction (F) of the cast strand or intermediate strip in front of the shears; b) placing a first blade of the shears onto the one surface of the cast strand or intermediate strip and placing a second blade of the shears onto the other surface of the cast strand or intermediate strip and performing a cut by carrying out a relative movement of the two blades, wherein at least one of the blades is in a pushed-forward position; c) upset forging or upset forging with stamping a wedge-shaped contour on the end of the cast strand.
    Type: Application
    Filed: September 24, 2018
    Publication date: August 20, 2020
    Applicant: SMS group GmbH
    Inventors: Luc NEUMANN, Michael PANDER, Björn KINTSCHER, Bernhard EHLS
  • Publication number: 20150321270
    Abstract: A shear, in particular a cross-cutting shear, for cutting flat material, including a upper blade support and a lower blade support, at least the upper blade support or the lower blade support being reciprocatingly displaceably guided and being displaceable by at least one adjustment device relative to the other respective blade support. The displaceable blade support is guided by the adjustment device and the adjustment device is designed so that it absorbs all the cutting forces and transversal forces.
    Type: Application
    Filed: December 23, 2013
    Publication date: November 12, 2015
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Matthias BEUTER, Bernhard EHLS
  • Patent number: 8220303
    Abstract: The invention relates to an apparatus for winding and unwinding rolled strip (WB) discharging from a mill train (WS), in which apparatus the rolled strip (WB) discharging from the mill train (WS) is introduced by a set of bending rolls (BR) into a winding chamber (WK) having a rotationally driven roller pair (RP) and is wound into a coil (WB), and the coil is then put onto a roller table (GR) and unwound from these rollers with the direction of rotation being reversed and the start of the strip is fed to a driver device (RT). The apparatus is improved by a supporting slide (TS) which can be pushed into the winding chamber (WK) and in whose side walls a pivoted lever (SH) is mounted, the free end of which carries a pressure roller (AR) which can be put onto the rolled strip coil and pushes the latter out of the winding chamber (WK) onto the adjoining roller table (GR).
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: July 17, 2012
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Matthias Beuter, Bernhard Ehls
  • Publication number: 20120036909
    Abstract: A method for removing loose scale and other foreign matter from the top and/or bottom face of a cast product with the aid of flowable media which are sprayed onto the cast product by a cleaning device having at least one spraying apparatus that is disposed above the cast product and at least one spraying apparatus that is arranged below the cast product. According to the method, the amount of media and/or the effective width and/or the pressure of the media is/are controlled separately and independently of time for each spraying apparatus.
    Type: Application
    Filed: October 19, 2011
    Publication date: February 16, 2012
    Applicant: SMS SIEMAG AKTIENGESELLSCHAFT
    Inventors: Thomas Runkel, Bernhard Ehls, Otmar Jannasch, Andreas Houben, Jürgen Armenat, Jürgen Hemmerle, Karl Rittner, Uwe Kopfstedt, Ingo Schuster, Peter Jonen, Carsten Lippold
  • Publication number: 20110017039
    Abstract: The invention relates to a drum shear arrangement (1) having two rotatably driven drums (3, 4) arranged on a stand (2) with their axes extending parallel to each other, and provided, respectively, with a knife (5, 6) on their profiles, wherein upon passing a metal sheet in a gap between the drums (3, 4), under at least partial rotation of the drums, the metal sheet is cuttable, and wherein inlet and/or outlet side of the stand is provided with at least one first roller group (10, 11) displaceable in a region of the stand (2) and in a region between the drums (3, 4).
    Type: Application
    Filed: January 30, 2009
    Publication date: January 27, 2011
    Inventors: Matthias Beuter, Bernhard Ehls
  • Publication number: 20090217945
    Abstract: Disclosed is a method for removing loose scale and other foreign matter from the top and/or bottom face of a cast product (3), such as a slab, thin slab, profiled element, or similar, with the aid of flowable media which are sprayed onto the cast product (3) by means of a cleaning device (5) comprising at least one spraying apparatus (8, 9) that is disposed above the cast product (3) and at least one spraying apparatus (8, 9) that is arranged below the cast product (3). According to said method, the amount of media and/or the effective width and/or the pressure of the media is/are controlled separately and independently of time for each spraying apparatus (8, 9).
    Type: Application
    Filed: September 20, 2006
    Publication date: September 3, 2009
    Inventors: Thomas Runkel, Bernhard Ehls, Otmar Jannasch, Andreas Houben, Jürgen Armenat, Jürgen Hemmerle, Karl Rittner, Uwe Kopfstedt, Ingo Schuster, Peter Jonen, Carsten Lippold
  • Publication number: 20090032634
    Abstract: The invention relates to an apparatus for winding and unwinding rolled strip (WB) discharging from a mill train (WS), in which apparatus the rolled strip (WB) discharging from the mill train (WS) is introduced by a set of bending rolls (BR) into a winding chamber (WK) having a rotationally driven roller pair (RP) and is wound into a coil (WB), and the coil is then put onto a roller table (GR) and unwound from these rollers with the direction of rotation being reversed and the start of the strip is fed to a driver device (RT). The apparatus is improved by a supporting slide (TS) which can be pushed into the winding chamber (WK) and in whose side walls a pivoted lever (SH) is mounted, the free end of which carries a pressure roller (AR) which can be put onto the rolled strip coil and pushes the latter out of the winding chamber (WK) onto the adjoining roller table (GR).
    Type: Application
    Filed: December 19, 2006
    Publication date: February 5, 2009
    Inventors: Matthias Beuter, Bernhard Ehls
  • Patent number: 7293446
    Abstract: The invention relates to a coil box, which is mounted between a roughing rolling train and a finishing rolling train, for metal pre-strips, in particular steel strips, which are hot wound to form coils and are protected against further cooling in the vicinity of a winding and/or unwinding station (6) by means of heat-shield devices (7) on the front faces (5a; 5b) of the coils. The aim of the invention is to universally configure said coil box. To achieve this, the heat-shield devices (7) are configured from lateral walls (8; 8b) that can be pivoted to rest against the front faces (5a; 5b) of the coils and a pair of opposing heat-shield devices (7) can be aligned in parallel to different coil widths (5c).
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: November 13, 2007
    Assignee: SMS Demag AG
    Inventors: Barbara Ladda-Zunk, Waldemar Michel, Bernhard Ehls, Matthias Beuter
  • Publication number: 20070012082
    Abstract: The invention relates to a method for expanding the use of a coiling and uncoiling station (coilbox) located between the roughing train and the finishing train for rolled strip material in hot-rolling mills. The use of said coilbox is expanded by impinging the coil that is to be uncoiled with a pressing force (F) which acts in the direction of the roller table (4) and/or placing the coil in a depression of the roller table in order to process smaller coil weights in a spikeless coilbox, and/or by combining, in a chronological and weight-related manner, the active transfer and passive transfer of a coil from a first coiling station to a second coiling station in order to increase the throughput especially at average coil weights in a spikeless coilbox, and/or by supplying heat to the strip upstream or downstream of the spikeless coilbox and/or thermally insulating the strip or the coilbox in order to variably increase and homogenize the strip temperature.
    Type: Application
    Filed: July 19, 2004
    Publication date: January 18, 2007
    Inventors: Klaus Baumer, Bernhard Ehls, Matthias Beuter, Thomas Runkel, Matthias Kruger, Peter Schmitz
  • Publication number: 20040261206
    Abstract: The invention relates to a device for removing loose cinder from the surface of a slab, especially a thin slab of a mini mill. One such mini mill comprises at least one slab casting machine, a slab separating device, a thermal compensation furnace and at least one roll stand comprising a reeling installation. The inventive device is improved in that a spray device (11) comprises at least one lower spray pipe (2) and at least one upper spray pipe (3) in relation to the slab (1), each spray pipe being fitted with a number of spray nozzles (4). Said spray device (11) is arranged in front of the roller hearth furnace (5) of the mini mill and is connected to a water supply (6) having the technologically required pressure and a volume flow which is adapted to the number of spray nozzles (4). The invention also relates to an operating method for the spray device (11).
    Type: Application
    Filed: August 23, 2004
    Publication date: December 30, 2004
    Inventors: Bernhard Ehls, Kirsten Fieger-Schlangen, Ingo Schuster, Jurgen Armenat