Patents by Inventor Hans-Peter Richter

Hans-Peter Richter 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: 20090186222
    Abstract: R-glass, E-glass, and/or ECR-glass fibers contain a sizing composition with at least one multicomponent film former, a lubricant, and a coupling agent.
    Type: Application
    Filed: July 11, 2007
    Publication date: July 23, 2009
    Applicant: S.D.R. BIOTEC VERFAHRENSTECHNICK GMBH
    Inventors: Hans-Peter Richter, Roman Teschner
  • Publication number: 20090183544
    Abstract: The invention relates to a roll stand and a method for rolling a rolled strip. The roll stand (100) comprises at least one roller housing on the drive side (AS) and one roller housing on the control side (BS) of the roll stand. It also comprises bending devices which are each firmly connected to spars (2) of the roll stands for treating and bending an upper and/or lower work roller of the roll stand (100) relative to the roller housings. The bending devices and thus the work rollers are controlled via a control device. To be able to control or regulate the bending devices and/or work rollers more precisely, and thus to improve the quality of the rolled strip after rolling, it is suggested according to the invention that a bending force strain gauge be placed appropriately for direct measurement of the actual bending force affecting the work rollers (7, 8) via the bending devices (11).
    Type: Application
    Filed: March 12, 2007
    Publication date: July 23, 2009
    Inventors: Hartmut Pawelski, Hans-Peter Richter, Ludwig Weingarten
  • Patent number: 7540178
    Abstract: The invention relates to a rolling plant (100) and to a method for its operation. Known rolling plants (100) typically comprise a reversing stand (110) for rolling a metal strip (200) in a plurality of rolling operations until the metal strip has reached the desired thickness. The reversing stand (110) is typically assigned at least one reversing reel device (130), which has a reel mandrel (132), for temporarily storing the metal strip (200) after individual rolling operations. The known rolling plants (100) also have a sensor device for determining the thickness of the metal strip.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: June 2, 2009
    Assignee: SMS Demag AG
    Inventors: Martin Peter, Ulrich Patzelt, Hans-Peter Richter
  • Publication number: 20090113968
    Abstract: A method of detecting strip edges in a cold rolling mill and/or strip-forming installation in which the strip edges (13, 14) are continuously detected in a contactless manner with two optical recognition systems, the right strip edge (14) and the left strip edge (13) are detected along a strip length of more than 800 mm with an image recording system (4, 5), the image data are communicated to a computer (11) and are processed there, and a so determined strip edge shape is taken into account during a regulation process.
    Type: Application
    Filed: September 28, 2006
    Publication date: May 7, 2009
    Inventors: Hartmut Pawelski, Hans-Peter Richter, Andreas Runge
  • Publication number: 20090107589
    Abstract: Disclosed are a method and a production line for manufacturing metal strips made of copper or copper alloys by means of casting and rolling. In order to lower the investment cost and operating expenses therefor, the melt (2) is cast into a copper strip (4) in a vertical and/or horizontal continuous strip casting process (3), and the hot copper strip (4) is cleaned by milling (5) the top and bottom face (5a, 5b) thereof, is subjected to a cold rolling process (6) and is prepared for shipping, or is subjected to an inspection (12) and then prepared for shipping after being annealed (7), pickled (8), washed (9), dried (10), and optionally temper rolled (11).
    Type: Application
    Filed: July 6, 2006
    Publication date: April 30, 2009
    Applicant: SMS DEMAG AG
    Inventors: Hans-Peter Richter, Ludwig Weingarten, Hartmut Pawelski, Rainer Link, Wolfheinrich Muller
  • Publication number: 20090100890
    Abstract: The invention concerns a rolling stand, a rolling train, and a method for rolling a stepped preprofiled metal strip. In order to guarantee that the metal strip is free of waviness in its longitudinal direction, even after individual thickness reduction of the steps, the invention proposes that the thickness reduction be carried out on a step-specific basis according to the following mathematical relationship: ?hi/hi=?hi+1/hi+1=?=constant, where ?hi represents the amount of the thickness reduction in the region of the i-th step, and hi represents the value of the resulting thickness of the metal strip 200 after rolling in the region of the i-th step.
    Type: Application
    Filed: May 2, 2007
    Publication date: April 23, 2009
    Inventors: Reiner Kopp, Hans-Peter Richter, Heinrich Rose
  • Publication number: 20090014037
    Abstract: The invention relates to a method of cleaning or descaling thin slabs and rolled strips in a hot strip rolling mill train and is characterized by use of cryogens such as oxygen or compound formed of cryogens with a carrier medium such as compressed air which are sprayed into slab surface or strip surface in liquid, deep-freeze form. The invention also relates to a method of cleaning and/or descaling of strips in a strip treatment installation with the above-mentioned characterized features, and to a correspondingly equipped apparatus.
    Type: Application
    Filed: November 17, 2006
    Publication date: January 15, 2009
    Inventors: Hans-Peter Richter, Heinrich Roese, Stephan Kramer, Walter Timmerbeul, Heinz-Dieter Gabriel, Juergen Seidel, Andreas Gramer
  • Patent number: 7472574
    Abstract: A method of and a rolling mill stand for cold rolling of a metallic rolling stock (1), in particular rolling strip (1b) with nozzles for gaseous or liquid treatment media, with which the rolling stock (1) is displaced under a processing temperature through a roll gap (40) of a roll pair of upper working roll (2) and lower working roll (3) to undergo plastic deformation, and which permits in addition to a rolling stock surface improvement, the lubrication and surface protection of the rolling stock (1) and the rollers (2, 3) by a reduction in roll separating, with introduction of deep-chilled media, whereby deep chilled inert gas (41), ambient temperature inert gas (41a), lubricant emulsion (42), of admixed base oil, or oil-free, non-residue evaporating hydrocarbons are introduced against the sides (2a; 3a) of the working rollers (2, 3), and/or the rolling gap (40), and/or the rolling stock (1) in groups of jets from individual rows of nozzles (6a to 22b) for lubrication, cooling, and for inerting.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: January 6, 2009
    Inventors: Hartmut Pawelski, Hans-Peter Richter, Ludwig Weingarten, Peter Jollet
  • Patent number: 7434435
    Abstract: The invention relates to a method and a device for applying an adjustable tensile-stress distribution, in particular in the edge regions during the cold-rolling of metal strips (16), in particular metal foil, in order to reduce the risk of an excessive build-up of tension and cracks at the edges of the strip, which can lead as a negative consequence to cracks in the strip and to a reduction in production, and in order to improve the surface of the strip and its planarity, even for a relatively high strip displacement speed, and also to reduce strip trimming widths.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 14, 2008
    Assignee: SMS Demag AG
    Inventors: Hans-Peter Richter, Hartmut Pawelski, Ludwig Weingarten, Thorsten Bode, Jürgen Klöckner, Ralf Ohrndorf
  • Publication number: 20070266544
    Abstract: The invention relates to a rolling installation (100) and a method for its operation known rolling installations (100) typically include a reversing stand (110) for rolling a metal strip (200) in several steps until the metal strip reaches a desired thickness. The reversing stand (110) is usually associated with at least one reversing reel (130) with a reel mandrel (132) for an intermittent storage of the metal strip (200) after separate rolling steps. In addition, the known rolling installations (100) have a sensor device for determining the thickness of the metal strip (200).
    Type: Application
    Filed: July 14, 2006
    Publication date: November 22, 2007
    Applicant: SMS DEMAG MG
    Inventors: Martin Peter, Ulrich Patzelt, Hans-Peter Richter
  • Publication number: 20070261456
    Abstract: In a rolling mill for rolling metal strip (1), especially steel strip, which has at least one rolling stand (2), an upstream coiler (3), and a downstream coiler (4), wherein an “S” roll unit (5, 6), which has two rolls (7, 8; 9, 10) that guide the strip (1) in the form of an “S”, is arranged between the upstream coiler (3) and the rolling stand (2) and/or between the rolling stand (2) and the downstream coiler (4), the invention provides that a first roll (7, 9) of the “S” roll unit (5, 6) is arranged in a fixed manner, and a second roll (8, 10) of the “S” roll unit (5, 6) is arranged in such a way that it can move relative to the first roll (7, 9).
    Type: Application
    Filed: August 10, 2005
    Publication date: November 15, 2007
    Inventors: Olaf Jepsen, Hans-Peter Richter, Michael Zielenbach
  • Publication number: 20070210104
    Abstract: In a method of cooling and/or lubricating of rolls and/or rolling stock according to which a cooling medium is applied to the rolls from a plurality of nozzles/nozzle rows, on one hand, and for lubrication, on the other hand, base oil is applied to the rolling stock in front of a roll gap, wherein the nozzles/nozzle rows are adjusted separately and independent from each other the cooling medium is applied to the rolls separately from the base oil, and finally, the base oil without water as a base medium is applied directly to the rolling stock over an entire width thereof in a very small amount in comparison with a conventional amount. To this end, media separating means is arranged between the nozzles/nozzle rows for applying cooling medium to the rolls and the nozzles/nozzle rows for applying base oil to the rolling stock.
    Type: Application
    Filed: May 9, 2005
    Publication date: September 13, 2007
    Applicant: SMS DEMAG AG
    Inventors: Rolf Buenten, Hartmut Pawelski, Ludwig Weingarten, Heiner Siebel, Hans-Peter Richter, Klaus Grimm, Dieter Daub
  • Publication number: 20070186609
    Abstract: The invention relates to a method and a device for applying an adjustable tensile-stress distribution, in particular in the edge regions during the cold-rolling of metal strips (16), in particular metal foil, in order to reduce the risk of an excessive build-up of tension and cracks at the edges of the strip, which can lead as a negative consequence to cracks in the strip and to a reduction in production, and in order to improve the surface of the strip and its planarity, even for a relatively high strip displacement speed, and also to reduce strip trimming widths.
    Type: Application
    Filed: August 27, 2004
    Publication date: August 16, 2007
    Inventors: Hans-Peter Richter, Hartmut Pawelski, Ludwig Weingarten, Thorsten Bode, Jurgen Klockner, Ralf Ohrndorf
  • Publication number: 20070175255
    Abstract: A method of and a rolling mill stand for cold rolling of a metallic rolling stock (1), in particular rolling strip (1b) with nozzles for gaseous or liquid treatment media, with which the rolling stock (1) is displaced under a processing temperature through a roll gap (40) of a roll pair of upper working roll (2) and lower working roll (3) to undergo plastic deformation, and which permits in addition to a rolling stock surface improvement, the lubrication and surface protection of the rolling stock (1) and the rollers (2, 3) by a reduction in roll separating, with introduction of deep-chilled media, whereby deep chilled inert gas (41), ambient temperature inert gas (41a), lubricant emulsion (42), of admixed base oil, or oil-free, non-residue evaporating hydrocarbons are introduced against the sides (2a; 3a) of the working rollers (2, 3), and/or the rolling gap (40), and/or the rolling stock (1) in groups of jets from individual rows of nozzles (6a to 22b) for lubrication, cooling, and for inerting.
    Type: Application
    Filed: May 23, 2005
    Publication date: August 2, 2007
    Inventors: Hartmut Pawelski, Hans-Peter Richter, Ludwig Weingarten, Peter Jollet
  • Patent number: 6928753
    Abstract: The preferred quality requirements postulated by producers for the product cold-rolled strip include, among good flatness and optimum thickness tolerances, also dryness of the strip in the outlet of strip rolling mills. Already existing devices that are disposed in the outlet of roll stands comprise stationarily installed and mobile partitions, a roll barrel and a roll strip venting device and a vapor escape. The aim of the invention is improve the aforementioned device by disposing above the rolled strip (10) a strip deflector (3) with an integrated fan-operated strip venting device (4) by means of a low-pressure nozzle (7) and an upper roll barrel gap seal (5) in the form of a slotted nozzle (6) and below the rolled strip (10) an extraction device (16) with integrated lower strip deflector (17).
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: August 16, 2005
    Assignee: SMS Demag AG
    Inventors: Hans-Peter Richter, Armin Klapdor
  • Publication number: 20050102855
    Abstract: The preferred quality requirements postulated by producers for the product cold-rolled strip include, among good flatness and optimum thickness tolerances, also dryness of the strip in the outlet of strip rolling mills. Already existing devices that are disposed in the outlet of roll stands comprise stationarily installed and mobile partitions, a roll barrel and a roll strip venting device and a vapor escape.
    Type: Application
    Filed: January 31, 2003
    Publication date: May 19, 2005
    Inventors: Hans-Peter Richter, Armin Klapdor
  • Patent number: 6834521
    Abstract: In a method for drying and keeping dry rolled strip in a delivery area of strip-rolling plants, a partition is arranged in the delivery area for separating a damp area of the rolling mill from a dry area. The partition extends from the base plate to the stand platform. The strip is subjected to pressurized gas by the ends of the partition facing the strip at a right angle to the strip surface from above and below. Across the strip width a cushion of a compressed gas is generated and seals a gap between the ends of the partition facing the strip and the upper and lower strip surfaces. The compressed gas is guided away above and below the strip parallel to the strip surface as a split flow toward the rolling mill or the damp area and as a split flow in the opposite direction toward the dry area.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: December 28, 2004
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Wolfgang Denker, Michael Hanisch, Hans-Peter Richter
  • Patent number: 6161406
    Abstract: A method of preadjusting cold deforming plants, such as cold rolling trains, skin pass stands, stretcher-and-roller levelers, straightening machines, and the like, wherein the hardness of the material to be deformed is measured shortly before the cold deformation of the material and is utilized for correcting its hardening curve and the preadjustment of the cold deforming plant based on the measurement. The standard hardening curve of a material or a group of materials with corresponding standard values of hardness, yield strength, tensile strength, etc., can be corrected by an additive or multiplicative linkage with a correction member which contains at least one tensile strength determined through the measured hardness value.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: December 19, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Andreas Peters, Andreas Gramer, Hans-Peter Richter
  • Patent number: 6138487
    Abstract: A roll, particularly a back-up roll, for rolling flat material is composed of a rotating roll shell and a unit arranged within the roll shell for influencing the bending stiffness of the roll shell. The unit for influencing the bending stiffness of the roll shell is a friction bearing in the form of a body of rotation. The body of rotation can be adjusted by rotating the body. The body of rotation is shaped in such a way that the load application surface thereof corresponding to the zone of the roll shell to which load is applied is part of the circumferential surface of a rotation-symmetrical body and the edge of this circumferential surface is shaped in such a way that along the circumference of the body of rotation the width and/or position of the load application surface vary.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: October 31, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hans Georg Hartung, Hans-Peter Richter, Helmut Kuhn, Wolfgang Denker, Klaus Klamma
  • Patent number: 6038906
    Abstract: A roll stand with work rolls supported by a back-up roll either directly or through an intermediate roll, particularly work rolls which are axially displaceable in opposite directions, wherein at least one of the rolls of the roll stand is constructed with varying resilience over the length thereof, particularly with a greater flattening behavior in at least a portion thereof. For this purpose, at least one of the rolls has in the area between the roll neck and the outer surface of the roll at least one notch extending concentrically about the axis.
    Type: Grant
    Filed: June 26, 1997
    Date of Patent: March 21, 2000
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Hans-Georg Hartung, Jochen Munker, Hans-Peter Richter
  • Patent number: 5056748
    Abstract: A molded plastic holder for printed material includes a substantially flat support panel which is designed to be mounted to any vertical surface. Molded as part of and integrally joined to the support panel along a lower edge is a first curved clip which curves outwardly at its base so as to provide a clearance space to receive the material and then extends inwardly in order to create a pressure point which presses against any material placed in the holder in order to retain the material securely in place. Also molded as part of and integrally joined to the support panel is a second curved clip of virtually identical construction to the first curved clip. The clips each have an inherent spring tension which allows each clip to be easily pulled forward for the insertion of material into the holder and to spring back to apply the desired holding force. Snap-on legs are used when the holder is to be table-mounted.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: October 15, 1991
    Assignee: Deflecto Corporation
    Inventor: Stephen T. Meyer