With Edge Guidance Means Patents (Class 219/61.3)
  • Patent number: 9199291
    Abstract: An operation management device performs an operation management for electric resistance welding in which a strip-shaped metal plate is formed to have a cylindrical shape in such a manner that both end portions of the metal plate gradually face each other while the metal plate is conveyed, and a Vee convergence section, which is a portion at which both of the end portions butt against each other while facing each other, is welded.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: December 1, 2015
    Inventors: Noboru Hasegawa, Hideki Hamatani, Takao Miura, Kunihiko Hatabara, Nobuo Mizuhashi, Kazuto Yamamoto
  • Patent number: 8841576
    Abstract: A method for producing a metal sheet with a welded-on tube which has at least partially curved sections, wherein the tube is guided by at least one guide element onto the sheet, is pressed thereon with at least one pressure element and is welded thereto at least at some points and wherein the tube is bent to form the curved sections. In order to achieve the welding-on in a simple manner even in the curved sections, it is provided that a bending is carried out in a plurality of discrete steps, wherein in individual steps firstly the tube with the at least one guide element is bent around a last created welding point and thereafter a new welding point is created. Furthermore, the invention relates to a device for carrying out the method.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: September 23, 2014
    Assignee: DTEC GmbH
    Inventors: Michael Dietl, Arnold Teufel
  • Patent number: 8829384
    Abstract: A guiding and shaping system for producing welded pipes made from metallic strip material. The guiding and shaping system comprises several pairs of rolls that are disposed one behind another in the direction of travel of the workpiece and are used for increasingly cold-working and bending the edges of the workpiece as the workpiece advances. First pairs of rolls grip the top side and bottom side of the workpiece while pairs of rolls that grip the external faces of the bent edges and form the shape of a pipe are provided in the region where the bent edges form undercuts. The guiding and shaping system further comprises a welding device. The workpiece is supported by floatingly mounted lateral rolls until cooling off following the welding process.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: September 9, 2014
    Assignee: Wuppermann Edelstahltechnik GmbH
    Inventor: Manfred Hartmann
  • Patent number: 8357872
    Abstract: A pipe processing apparatus containing a gripping mechanism with bracing rollers, further a drive wheel which is rotationally supported on the pipe processing apparatus and axially parallel to the bracing rollers and is positioned/positionable by its tread at such a site where said tread can make contact with the pipe held by the bracing rollers and can rotate said pipe by static friction; and a drive system to actuate the drive wheel.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: January 22, 2013
    Assignee: Illinois Tool Works Inc.
    Inventor: Andreas Lier
  • Publication number: 20110308660
    Abstract: A method of continuously forming a dual seam welded tubular product includes the steps of providing two coils of sheet metal material, uncoiling the two coils and forming the material into opposing sections, bringing the two opposing sections together at a convergence angle of less than about 4°; and welding the two seams created between the two opposing sections. An apparatus is configured to bring the sections together at a convergence angle less than about 4° to produce the tubular product. The tubular product may have a diameter greater than 26 inches.
    Type: Application
    Filed: May 2, 2011
    Publication date: December 22, 2011
    Applicant: DFI CORPORATION
    Inventor: Eric BERUBE
  • Patent number: 7735709
    Abstract: A method and apparatus for joining pipe sections (102, 104) together to form an underwater pipeline. The pipe sections (102, 104) are in an abutting position and have a generally vertical orientation. The apparatus comprises at least two welding equipment carriers (148, 152) and at least two welding heads (110, 112). Each welding head is connected to an equipment carrier (148, 152) by means of at least one umbilical (130, 132). The apparatus further comprises a welding head guide assembly (113) which is adapted to be fixed to one of said upper of lower pipe sections. The welding head guide assembly (113) guides the welding heads about the pipe sections (102, 104). The apparatus further comprises a guiding device (133) which guides the welding equipment carriers (148, 152) around said welding area (115). The welding equipment carriers (148, 152) are movable independently from one another.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: June 15, 2010
    Assignee: Heerema Marine Contractors Nederland B.V.
    Inventors: Frits-Jan Koppert, Cornelis van Zandwijk
  • Patent number: 6911632
    Abstract: A method for controlling the edges (7, 7?) of a foil strip guided in a shaping funnel of a device producing tubular bodies from the foil strip by an overlapping weld seam using a guide wedge, the strip being then welded. According to the invention, after welding, the method consists in using a linear infrared sensor for measuring and evaluating a temperature profile perpendicular to the overlapping weld seam. In case of variation relative to the specific real profile, a signal is automatically transmitted to rotate the shaping funnel with the guide wedge, the welding being produced by the high frequency (HF) and the temperature profile being measured directly after welding.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: June 28, 2005
    Assignee: Aisapack Holding SA
    Inventor: Gerhard Keller
  • Patent number: 6588648
    Abstract: During manufacture of certain hollow profiles suitable for use in car body construction the welded profiles are subjected to a further deformation process, namely hydroforming. At present the corresponding welding machines are charged manually. The invention relates to a method and a device for transferring hollow-profile blanks, characterized in that during transfer the positioned fusion faces of the blanks are pressed against each other at least in the area of the weld.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: July 8, 2003
    Assignee: Elpatronic AG
    Inventor: Peter Gysi