Of Cylinders (e.g., Pipes And Tubes) Patents (Class 219/59.1)
  • Patent number: 10381904
    Abstract: A rotor coil for a revolving armature includes a strand coil that includes a part arranged in a core slot of the rotor and is composed of a plurality of element wires; and a solid coil welded to an end of the strand coil wherein the end of the strand coil and an end of the solid coil are welded by friction stir welding. A manufacturing method of a rotor coil includes the step of performing friction stir welding wherein the friction stir welding is performed for the butt joint with the end of the strand coil arranged in an advancing side defined by a rotation direction of a tool and with the solid coil arranged in a retreating side.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: August 13, 2019
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Ryosuke Umezu, Yasuaki Kageyama, Juichi Enyama, Seunghwan Park, Satoshi Hirano
  • Patent number: 9630470
    Abstract: A method of producing a stabilizer (10) of a motor vehicle, such that the stabilizer includes a torsion bar (11) and longitudinal links (12, 13). The longitudinal links (12, 13) are in each case connected to the torsion bar (11) by welding, and the longitudinal links (12, 13) and the torsion bar (11) are heat-treated before welding. Each longitudinal link (12, 13) is welded at one end to the torsion bar (11) on both sides, in each case, by a respective multilayer weld seam (14), and each weld seam (14) is made with unequal widths such that the width of the weld seam (14) adjacent to the torsion bar (11) is shorter than its width adjacent to the respective longitudinal link (12, 13).
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: April 25, 2017
    Assignee: ZF Friedrichshafen AG
    Inventors: Frank Scheper, Stefan Holtz, Xiaocen Wang
  • Patent number: 9434030
    Abstract: There is disclosed a welding frame for welding a first pipe having a first free end to a second pipe having a second free end; the frame comprising a first clamp for reconforming the first pipe adjacent its first free end and a second clamp for reconforming the second pipe adjacent its second free end; and a mounting frame mounting the first and second clamps in substantially coaxial relation. The first clamp and second clamp are actuable to hold the first free end of the first pipe in close coaxial opposition with the second free end of the second pipe for welding. There are also disclosed clamps for a frame for welding pipes, dies for use with the clamps, and methods for welding pipes.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: September 6, 2016
    Inventor: Justin Vaughn Page
  • Patent number: 9427792
    Abstract: A method for producing superheater tubes and connecting pipes and assembling superheater tubes inside a steam generator tube wall includes preparing tubes composed of precipitation-hardened nickel-based alloys in a solution-annealed state for the straight tubes, the bends, and the connecting pipes in a workshop and preparing sleeves composed of a material that is not to be heat treated in a shop. The bends and the connecting pipes are manufactured in the workshop using bending tools and then the straight tubes, the bends and the connecting pipes are precipitation hardened in the workshop in a first heating device. The superheater tubes are manufactured in the workshop by connecting the straight tubes and the bends with weld seams, and connecting the sleeves with the connecting pipes with weld seams. The weld seams between straight pipes and bends as well as the weld seams between sleeves and connecting pipes are precipitation hardened in the workshop with a second heating devices.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: August 30, 2016
    Assignee: ALSTOM TECHNOLOGY LTD.
    Inventors: Ruben Hartwig, Andreas Helmrich, Daniel Mutter, Alois Schalk
  • Patent number: 9016553
    Abstract: Disclosed therein are an apparatus for and a method of welding a flange to a guide thimble tube in a nuclear fuel assembly. The automatic welding apparatus includes a welding unit located on an axially conveying line of a tube for welding a surface of the tube inserted thereinto and a surface of a flange, a flange supplying unit for supplying the flange at a tube inlet of the welding unit onto the axially conveying line, and a conveying unit mounted on the axially conveying line in such a way as to move the tube and the flange on the axially conveying line, so that they are inserted into and drawn from the welding unit.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: April 28, 2015
    Assignee: Korea Nuclear Fuel Co., Ltd.
    Inventors: Ki-jun Kwon, Se-yong Shin, Sang-pil Kong, Hung-soon Chang, Jeong-ho Kim, Tae-hyung Na
  • Patent number: 9000323
    Abstract: A method for connecting a shaft and a hub, the hub having a first joining portion and a second joining portion for a connection to corresponding joining portions of the shaft. The shaft and the hub are pressed together at contact points in the area of the first joining portions, while the second joining portions are not yet in contact with one another, and a welding current is fed via the contact points of the parts that have been pressed together, so that the contact points fuse. The shaft is pressed into the hub, while the first joining portions are being fused, until substantially a press fit is formed between the second joining portions.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: April 7, 2015
    Assignee: MAGNA Powertrain AG & Co KG
    Inventors: Alexander Dietrich, Markus Schuiki
  • Patent number: 9000321
    Abstract: A thermal cutter for cutting with heat a board mounted upon a table having an internal space includes a plurality of walls and a sound absorbent material. The walls are disposed in the internal space of the table to partition a plurality of exhaust chambers with each of the exhaust chambers having an aperture that opens towards a side on which the board is mounted. The sound absorbent material is provided to at least a portion of at least one of the walls, the sound absorbent material being removably coupled to the table.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 7, 2015
    Assignee: Komatsu Industries Corporation
    Inventors: Yoshihiro Yamaguchi, Satoshi Ohnishi
  • Patent number: 8992226
    Abstract: A mock welding unicoupon for a virtual welding system includes a first exterior surface and a second exterior surface perpendicular to the first exterior surface. The first exterior surface and the second exterior surface together provide a plurality of grooves configured for simulation of a plurality of different types groove welds on the mock welding unicoupon. A curved exterior surface is configured for simulation of a pipe fillet weld on the mock welding unicoupon. A magnet source is configured to generate a magnetic field around the mock welding unicoupon for tracking movements of a mock welding tool with respect to the mock welding unicoupon.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: March 31, 2015
    Assignee: Lincoln Global, Inc.
    Inventors: Jason Leach, Antonius Aditjandra, Deanna Postlethwaite
  • Patent number: 8987627
    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: Grant
    Filed: May 2, 2011
    Date of Patent: March 24, 2015
    Assignee: DFI Corporation
    Inventor: Eric Berube
  • Patent number: 8963057
    Abstract: Apparatus and method are provided for an electric induction brazing process in an inert atmosphere using a substantially oxygen-free copper alloy filler or preform under an inert atmosphere within a brazing chamber minimally sized for containment of the brazed joint region and an induction coil. The inert atmosphere may be nitrogen gas supplied from a liquid nitrogen source. For brazing of an open-interior fitting around a hole in a tubular material a nesting area is provided around the hole for seating of the filler or preform and the fitting.
    Type: Grant
    Filed: October 26, 2008
    Date of Patent: February 24, 2015
    Assignee: Radyne Corporation
    Inventors: Brian R. Gramoll, Robert P. Frank
  • Patent number: 8916791
    Abstract: A welding system having a traveling base carriage, a carriage positioning mechanism engaging the base carriage; and a ring gear assembly mounted on the base carriage. The ring gear assembly will include: (i) two half ring sections, each having at least one gear track; (ii) a ring gear mount attaching each of the half ring sections to the base carriage, where the ring gear mounts allow the half ring sections to separate and guide the half ring sections into mating engagement. The system further includes at least one weld head assembly mounted on the ring gear assembly. The weld head assembly includes: i) a welding torch; ii) a torch positioner, and iii) a position sensor.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: December 23, 2014
    Assignee: Technip USA, Inc.
    Inventors: Robert Wayne Gatlin, Charles Stewart, Ian Sykes
  • Patent number: 8912462
    Abstract: A method of efficiently manufacturing electric resistance welding pipes having excellent characterization of welded seams is provided, by which each lateral edge of a rounded strip immediately before electric resistance welding is securely shaped with desired tapering flexibly in response to change in strip thickness, so that welding quality may be kept to be excellent. A method of manufacturing electric resistance welding pipes, in which a strip is subjected to forming, then edges thereof are formed to substantially face each other, and then the edges are subjected to electric resistance welding to form a pipe, wherein an edge and an edge opposed thereto at one of an upper-surface side and a lower-surface side of the strip are shaped with tapering before the forming by means of cutting or shaving, or finpass forming.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: December 16, 2014
    Assignee: JFE Steel Corporation
    Inventors: Kazuhito Kenmochi, Takatoshi Okabe, Hiroyasu Yokoyama, Yuji Sugimoto, Yoshifumi Fujioka, Kei Sakata, Tomohiro Inoue, Hiroyuki Shirosawa, Motoaki Egi, Yasuo Nishida, Muneyoshi Murakami
  • Publication number: 20140353281
    Abstract: A pipe fabrication apparatus includes a fabrication module having a guide adapted to support a cylindrical component, at or adjacent a first end of the component, at two discrete and space apart locations on an exterior surface of the component, and a bed for supporting the cylindrical component at a position distal the first end such that a longitudinal axis of the component is aligned with a central axis of the fabrication module in order to allow additional cylindrical parts to be quickly and easily coaxially aligned with the component for the purposes of tack welding the two items together prior to full seam welding.
    Type: Application
    Filed: April 26, 2011
    Publication date: December 4, 2014
    Inventor: Cyril Condell
  • Publication number: 20140346148
    Abstract: Disclosed is a welding operation management device characterized by being provided with a weld joint specification table (101a) that associates material qualities of pipe materials and welding execution methods as pipe weld joint specifications in plant construction work with weld joints, a welding execution method table (101c) that associates base metal classes into which the material qualities are classified, weld material classes into which weld materials used for welding are classified, and welding method classes into which welding execution methods are classified with welding execution methods, a weld material identification table (101f) that associates the base material classes and the weld material classes with the weld materials, and a weld material identification unit (105); that acquires the welding execution method and material quality of a desired weld joint from the weld joint specification table (101a), acquires the weld material class thereof from the welding execution method table (101c), and
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Inventors: Yuji KATOH, Tsutsumi Nakamura, Kohi Ogata, Masaaki Furihata, Toshiharu Takai
  • 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: 8796579
    Abstract: A flange (13) for use in direct resistance heating of a glass-carrying vessel (10), such as a finer, is provided. The flange comprises a plurality of electrically-conductive rings which include an innermost ring (140) which is joined to the vessel's exterior wall (12) during use of the flange and an outermost ring (150) which receives electrical current during use of the flange. The innermost ring (140) comprises a high-temperature metal which comprises at least 80% platinum and the outermost ring (150) comprises at least 99.0% nickel. This combination of materials both increases the reliability of the flange and reduces its cost. In certain embodiments, the flange can also include one or more rings (190) composed of a platinum-nickel alloy which has a lower thermal conductivity than platinum or nickel and thus can serve to reduce heat loss through the flange.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: August 5, 2014
    Assignee: Corning Incorporated
    Inventors: Lee Martin Adelsberg, Steven Roy Burdette, Joyce C Gillis Dunbar, James Patrick Murphy
  • Patent number: 8785805
    Abstract: A covering for a containment pool, tank or enclosure, in particular a containment enclosure for a nuclear power plant, is produced by placing metal sheets parallel to a first wall at a predetermined distance from the latter, each sheet comprising anchoring elements, on a first face arranged facing the first wall, placing a rail situated between the anchoring elements and comprising side walls and a base delineating a space facing the area to be welded with two adjacent sheets, making a weld bead by full-penetration butt welding of the adjacent metal sheets, and pouring concrete between said first wall and the metal sheets, the anchoring elements of the metal sheets being completely independent from the weld bead after the concrete has been poured.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: July 22, 2014
    Assignee: Societat d'Obres I Treballs Subterranis del Pirineu, S.L. (Sots, S.L.)
    Inventor: Jean Simon
  • Patent number: 8729418
    Abstract: A method produces a welded connection between first and second components each having inner and outer sides interconnected by an end face. The first component has a ferritic basic body carrying a plating at the inside and having an end face with a buffer layer of Ni-based alloy. The second component is of austenitic material. The end faces of the components enclose a weld groove. An austenitic root, connecting the plating to the end face of the second component, is welded in the weld groove. An intermediate layer of a nickel alloy having at least 90% nickel is welded onto the root. The intermediate layer is connected to the end faces of the plating and the second component. A weld seam is then produced in the remaining weld groove using a nickel-based welding additive. A method for repairing a welded connection between first and second components is also provided.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: May 20, 2014
    Assignee: Areva GmbH
    Inventors: Erhard Brueckner, Gerhard Engelhard, Siegried Guegel
  • Publication number: 20140124481
    Abstract: A method of manufacturing a laser welded steel pipe by forming a steel strip into a cylindrical open pipe and performing laser welding on edges that includes: emitting two laser beams along the edges from an upper surface side of the open pipe, the two laser beams being transmitted through different optical fibers with in-focus spot diameters exceeding 0.3 mm; emitting leading and trailing laser beams each inclined toward a direction in which welding proceeds at an incident angle with respect to a direction perpendicular to an upper surface of the open pipe; setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam; and setting a gap between a center point of the leading laser beam and a center point of the trailing laser beam on a back surface of the open pipe to 1 mm or larger.
    Type: Application
    Filed: April 28, 2011
    Publication date: May 8, 2014
    Applicant: JFE STEEL CORPORATION
    Inventors: Koji Yano, Hiroyuki Sumi, Kenji Oi
  • Publication number: 20140091063
    Abstract: A system for hardening a cylindrical metal component is disclosed. The system may include a current generating device configured to pass current through the cylindrical metal component, and an actuator configured to axially move the current generating device through the cylindrical metal component. The system may also include a controller in communication with the current generating device and the actuator, the controller being configured to cause the current generating device to pass current through a first end section of the cylindrical metal component to heat the first end section of the cylindrical metal component. The controller may also be configured to inhibit the current generating device from passing current through a middle section of the cylindrical metal component, and cause the current generating device to pass current through a second end section of the cylindrical metal component to heat the second end section of the cylindrical metal component.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: ELECTRO-MOTIVE DIESEL, INC.
    Inventors: Farhan DEVANI, Aaron Gamache FOEGE
  • Publication number: 20140091064
    Abstract: Method of welding edges which are placed against each other of at least one workpiece of metal by means of a laser is indicated, in which the areas of the workplace located at the edges are subjected to a pretreatment for increasing the absorption capacity of the light of the laser. For this purpose, initially color is sprayed or splashed onto the areas of the workpiece located at the edges, while avoiding any mechanical contact of the workpiece, by means of a device (7) which emits the color, and the edges of the workpiece are subsequently welded together by means of a laser (11).
    Type: Application
    Filed: March 11, 2013
    Publication date: April 3, 2014
    Inventors: Ralf Egerer, Holger Schulz, Olaf Petersen, Christian Reiter
  • Publication number: 20140033789
    Abstract: The invention relates to a process for manufacturing a steel Yankee cylinder (1), where the Yankee cylinder (1) is welded together from individual pre- or finish-machined cylinder sections (8, 9, 10). The invention also relates to a Yankee cylinder (1) that is manufactured using the manufacturing process according to the invention.
    Type: Application
    Filed: March 19, 2012
    Publication date: February 6, 2014
    Applicant: ANDRITZ AG
    Inventors: Josef Krasser, Markus Maier, Ludwig Kahsiovsky
  • Patent number: 8642914
    Abstract: The invention relates to an orbital carrier (2) for a device for butt-welding pipes (C, C) to form a pipeline, said device comprising at least one welding carriage (1) supporting at least one welding head (6) which has at least one welding torch, said orbital carrier (2) surrounding the pipes (C, C) to be welded and being designed to enable positioning and movement in the plane of the joint between the pipes (C, C) of said welding carriage or carriages (1), and said orbital carrier (2) also being movable translationally along the pipeline as it grows. The invention consists in the fact that said orbital carrier (2) consists of at least two components (20) in the form of segments of a circle able to be connected together to form the orbital carrier (2) around the pipes (C, C) during a welding phase and also to allow said orbital carrier (2) to be opened, at least at the top, to allow it to pass an obstruction on the outside of the pipe (C, C). Application: the welding of pipes (C, C).
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: February 4, 2014
    Assignee: Serimax
    Inventors: Thierry Dupont, Denis Destouches, Cyril Tigien
  • Patent number: 8637784
    Abstract: An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When a cylindrical tubular body (2) is improved in its residual stress by locally irradiating an outer-circumferential surface of a welded portion (C) of the tubular body (2) with laser beams (5a) and by moving an irradiation area (s) in an circumferential direction, a plurality thermocouples (9) are installed on the tubular body (2) to be improved, a temperature history of the outer surface of the tubular body (2) by the irradiation of the laser beam (5a) is managed by measuring the temperature history itself.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: January 28, 2014
    Assignees: Mitsubishi Heavy Industries, Ltd., The Japan Atomic Power Company, Hokkaido Electric Power Company, Inc., Tohoku Electric Power Co., Inc, The Tokyo Electric Power Co., Inc, Chubu Electric Power Co., Inc, Hokuriku Electric Power Company, The Kansai Electric Power Co., Inc, The Chugoku Electric Power Co., Inc, Shikoku Electric Power Co., Inc, Kyushu Electric Power Co., Inc, Electric Power Development Co., Ltd
    Inventors: Takahiro Ota, Kazuhiko Kamo, Itaru Muroya, Seiji Asada, Kazuhiro Wakabayashi, Koji Okimura, Hironori Onitsuka
  • Patent number: 8622277
    Abstract: Disclosed therein are an apparatus for and a method of automatically welding a flange to a guide thimble tube in a nuclear fuel assembly. The automatic welding apparatus includes: a welding part located on an axially conveying line of a tube for welding a welded surface of the tube inserted thereinto and a welded surface of a flange; a flange supplying part for supplying the flange at a tube inlet of the welding part onto the axially conveying line; and a conveying part mounted on the axially conveying line in such a way as to move the tube and the flange on the axially conveying line, so that they are inserted into and drawn from the welding part.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: January 7, 2014
    Assignee: Korea Nuclear Fuel Co., Ltd.
    Inventors: Ki-jun Kwon, Se-yong Shin, Sang-pil Kong, Hung-soon Chang, Jeong-ho Kim, Tae-hyung Na
  • Patent number: 8530777
    Abstract: Purge gas apparatus and method for a welding system uses automatic purge gas flow control function, such as an MFC, to control ID and/or OD purge gas flow rate or purge gas pressure or both at the weld site.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: September 10, 2013
    Assignee: Swagelok Company
    Inventors: Kevin Silk, Richard A. Ales, William Ponikvar, Michael Mussig, David N. Stafford
  • Patent number: 8530776
    Abstract: Thus a lifter table de-stacker 1 is provided comprising a lifter table 3 with a stack 10 holding device 4 above the lifter table. The holding unit positions the stack by motorized guiding elements 14 and 15. A de-stacking unit and in particular a suction unit is provided which can be adjusted in its position above the stack 10 by a motor as well. The lifter table de-stacker with the motorized adjustability of the guiding elements and the de-stacker provides for a very fast adaptation to different sheet metal blank sizes. Such a lifter table de-stacker is preferably provided for feeding sheet metal blanks into a rounding apparatus which is feeding rounded blank container bodies into a resistance seam welding machine for container bodies.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: September 10, 2013
    Assignee: Soudronic AG
    Inventors: Daniel Dieterich, Peter Bertschi
  • Publication number: 20130220978
    Abstract: Methods for forming flattened tubes are described herein. In one embodiment, internal fins formed on an interior surface of a round tube define a plurality of internal cross channels thereon. The tube is flattened and the internal fins welded together at localized contact points without the use of a brazing or cladding material.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 29, 2013
    Inventor: Cerro Flow Products LLC
  • Publication number: 20130186864
    Abstract: A device for continuously manufacturing pipes of metal, wherein the device includes a shaping unit (4) for shaping a pipe with a slot extending in the longitudinal direction from a longitudinally arriving metal strip, a welding device (7) for welding the contacting edges of the metal strip at the slot of the pipe, and a pulling device for pulling the pipe (9) which is now circumferentially closed in its longitudinal direction. The welding device (7) is composed of at least two separate welding heads (12,13) arranged in the pulling direction of the pipe (9) at a distance from each other, wherein the welding heads (12,13) each have at least one non-burning electrode.
    Type: Application
    Filed: July 26, 2012
    Publication date: July 25, 2013
    Inventors: Ralf Egerer, Holger Schulz
  • Publication number: 20130180472
    Abstract: A double-walled tube includes: a plurality of double-walled tube forming members, each having an inner tube and an outer tube, connected by welding at welding portions of axis direction end portions thereof; and each of the welding portions of the double-walled tube forming members including a groove having a length in an axis direction set to be equal to or greater than ½ of a width of a weld bead formed by the welding at the welding portion.
    Type: Application
    Filed: July 18, 2012
    Publication date: July 18, 2013
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takehisa HINO, Masataka Tamura, Yoshimi Tanaka, Wataru Kono, Toru Sakamoto, Toshinori Terashima, Katsuhiko Sato, Noboru Jimbo, Shigeki Maruyama
  • Patent number: 8395068
    Abstract: An object of the invention is to provide a device and a method for controlling a welding angle which is capable of resolving restrictions occurred when a conventional float type welding angle control device is used to manufacture a welded pipe, and giving full play to the ability of such a float type welding angle control device, by adopting a new mechanism for supporting and adjusting a fin roll. When the welding angle is controlled by inserting the fin roll between opposing edges of a band steel at a position located in an upstream side of squeeze rolls, the fin roll is attached to a link mechanism in which two arms are coupled so as to be pivotable within a plane defined by a pipe manufacturing line direction and a perpendicular direction thereof, and positions of gripping points of the arms are changed to adjust a position of the fin roll within the plane.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: March 12, 2013
    Assignee: Nakata Manufacturing Co., Ltd.
    Inventors: Feizhou Wang, Satoshi Tsuruta, Tomoyasu Nakano
  • Patent number: 8362385
    Abstract: Method in which a continuous butt-sealed rim of a collar defined by corresponding concentric ends, without undulations, of a first wall, radially innermost, and a second wall, radially outermost, of a double-wall bellows is obtained as a continuous butt-weld bead on the corresponding rims, arranged radially adjacent to each other, of the ends of the first and second walls, which have been prepared such that, before welding, they are radially spaced apart from each other by not more than 0.3 mm and with the rim of the second wall that projects in an axial direction with respect to that of the first wall for a length of 0.2-0.4 mm; butt welding is performed with a laser beam directed parallel to an axis of symmetry of the collar, making the latter rotate around the axis to progressively expose the entire perimeter of the rims of the ends of the first and second walls, simultaneously pressing the rims against each other with a force between 1 and 3 kg via spring clamping rollers.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: January 29, 2013
    Assignee: Flexider S.R.L.
    Inventor: Salvatore Gammino
  • 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: 20120298628
    Abstract: A method of laying a pipeline is described in which both internal and external weld passes are performed in order to weld together the pipe sections. The method includes arranging a pipe section adjacent to the end of a pipeline thereby defining a circumferential joint to be welded, performing an external weld pass, with for example GMAW—MIG torches, on the root of the joint to be welded during which weld material is deposited in the root of the joint to be welded, thereby forming a root weld, and then performing an internal weld pass, with for example a GTAW—TIG torch, on the root weld during which the root weld is melted and re-shaped. The method has particular application in relation to pipes clad with corrosion resistant alloy.
    Type: Application
    Filed: November 30, 2010
    Publication date: November 29, 2012
    Applicant: SAIPEM S.p.A
    Inventor: Jonathan Bowers
  • Patent number: 8278583
    Abstract: In order to evaluate the welding current for the resistance seam welding of an overlap seam of container bodies, a welding with changing welding current intensity is carried out for a container body of the production series, resulting in a changing welding of the seam, ranging from the welding with a too high temperature to the welding with a too low temperature. The electric energy for this welding is determined several times during this welding and/or the temperature of the weld seam is determined several times and the welding current intensity is determined at which the welding of the individual container body is too cold and the welding current intensity at which the welding is too hot. This determination is based on the determined electric energy values and/or on the determined temperature values and based on this determination a preferred range for the welding current intensity within these limits of too hot and too cold is determined.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: October 2, 2012
    Assignee: Soudronic AG
    Inventors: Willi Mueller, Daniel Dietrich
  • Patent number: 8269131
    Abstract: A flange (13) for use in direct resistance heating of a glass-carrying vessel (10), such as a finer, is provided. The flange comprises a plurality of electrically-conductive rings which include an innermost ring (140) which is joined to the vessel's exterior wall (12) during use of the flange and an outermost ring (150) which receives electrical current during use of the flange. The innermost ring (140) comprises a high-temperature metal which comprises at least 80% platinum and the outermost ring (150) comprises at least 99.0% nickel. This combination of materials both increases the reliability of the flange and reduces its cost. In certain embodiments, the flange can also include one or more rings (190) composed of a platinum-nickel alloy which has a lower thermal conductivity than platinum or nickel and thus can serve to reduce heat loss through the flange.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: September 18, 2012
    Assignee: Corning Incorporated
    Inventors: Lee Martin Adelsberg, Steven Roy Burdette, Joyce C Gillis Dunbar, James Patrick Murphy
  • Patent number: 8217295
    Abstract: A method produces a welded connection between first and second components each having inner and outer sides interconnected by an end face. The first component has a ferritic basic body carrying a plating at the inside and having an end face with a buffer layer of Ni-based alloy. The second component is of austenitic material. The end faces of the components enclose a weld groove. An austenitic root, connecting the plating to the end face of the second component, is welded in the weld groove. An intermediate layer of a nickel alloy having at least 90% nickel is welded onto the root. The intermediate layer is connected to the end faces of the plating and the second component. A weld seam is then produced in the remaining weld groove using a nickel-based welding additive. A method for repairing a welded connection between first and second components is also provided.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 10, 2012
    Assignee: Areva NP GmbH
    Inventors: Erhard Brückner, Gerhard Engelhard, Siegfried Gügel
  • Patent number: 8207468
    Abstract: A welding apparatus of a stainless steel pipe comprises a welding torch jetting argon gas for shielding oxygen into a gap of the steel pipe rolled in a circular shape, while fusing any one of base metal and a welding material; and a gas supply pipe installed inside the steel pipe, the gas supply pipe having a jetting nozzle which jets argon gas at a rate of 4 to 20 l/min toward the inner surface of a welding bead portion, where welding has been already completed and which is positioned backwardly at a predetermined distance from a welding bead portion where welding is being performed by the welding torch.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: June 26, 2012
    Assignee: Dong-A Flexible Metal Tubes Co., Ltd.
    Inventor: Jin Lim Choi
  • Publication number: 20120111783
    Abstract: A novel positive traction permeate tube and fittings therefore are described for use in spirally wound membrane filtration elements for filtration and separation applications. Membrane filtration elements incorporate the novel permeate tube. Methods of making the novel positive traction permeate tube are also disclosed as are the preferred sanitary stainless steel materials used for the sanitary tube and fittings. The novel permeate tube involves a sanitary tubing having two open ends, each with an end fitting. The end fittings engage a positive traction drive for high tension spiral winding of a membrane element spirally around the novel permeate tube. Membrane filtration elements made with the novel permeate tube are less subject to slippage and breakage during manufacture and can withstand higher pressure drops and flow rates during use without failure of the spiral wound membrane element. The positive traction permeate tube facilitates membrane replacements.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 10, 2012
    Inventor: Pedro J. Tortosa
  • Patent number: 8162201
    Abstract: The present invention consists in a system and a method for installation of duct lines and/or pipelines comprising a pipe shop, supporting, rolling and guiding elements previously provided along a path of duct line/pipeline designed to be formed, the quantity of elements varying according to the length and the characteristics of the path, the said pipe shop comprising within the same a facility for welding, inspection and finishing of the pipes for forming the duct line/pipeline, the elements comprising a supporting base and a roller.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: April 24, 2012
    Inventor: Paulo Roberto Gomes Fernandes
  • Publication number: 20120073343
    Abstract: A method for producing metallic sealing and stopper elements for flat gaskets by winding or rolling at least one metallic, sheet metal- or foil-like base body to obtain a tube as an intermediate product, bringing the mutually opposing end regions or parts, or the entire contact surface of the tube, into operative connection with each other by way of bonding, non-positive or positive joining techniques, or combinations thereof, contouring the tube or tube sections generated therefrom at least in some regions, and severing at least one annular or disk-shaped component in order to generate a sealing or stopper element in the contoured region of the tube or tube section.
    Type: Application
    Filed: May 20, 2010
    Publication date: March 29, 2012
    Applicant: Federal-Mogul Sealing Systems GmbH
    Inventor: Rolf Prehn
  • Patent number: 8143549
    Abstract: Welding devices and methods of using the same are provided. The welding device includes a rotor assembly. The rotor assembly includes a first semi-collar associated with a second semi-collar to form a collar. The collar is adapted to be disposed about a tube to be welded, and associated with an automatic voltage control assembly. The automatic voltage control assembly is mechanically associated with an electrode, and the automatic voltage control maintains the desired angular disposition of the electrode relative to the tube to be welded.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: March 27, 2012
    Assignee: Aquilex WSI LLC
    Inventors: William Bryan King, III, Pedro Ernesto Amador
  • Patent number: 8124905
    Abstract: A method of making a guide wire involves butting a connection end face at a proximal end of a first wire against a connection end face at a distal end of a second wire while applying voltage and a pressing force to weld together the first and second wires at a welded portion. The welded portion forms a projection that projects outwardly in an outer peripheral direction relative to portions of the first and second wire adjacent the projection. The outer dimension of the projection at the welded portion is adjusted so that upon completing adjusting the outer dimension of the projection the projection still projects outwardly in the outer peripheral direction relative to the portions of the first and second wire adjacent the projection.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: February 28, 2012
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Hiraku Murayama, Akihiko Umeno, Jun Iwami, Yutaka Itou, Youki Aimi
  • Publication number: 20120037600
    Abstract: Disclosed is a welding operation management device characterized by being provided with a weld joint specification table (101a) that associates material qualities of pipe materials and welding execution methods as pipe weld joint specifications in plant construction work with weld joints, a welding execution method table (101c) that associates base metal classes into which the material qualities are classified, weld material classes into which weld materials used for welding are classified, and welding method classes into which welding execution methods are classified with welding execution methods, a weld material identification table (101f) that associates the base material classes and the weld material classes with the weld materials, and a weld material identification unit (105); that acquires the welding execution method and material quality of a desired weld joint from the weld joint specification table (101a), acquires the weld material class thereof from the welding execution method table (101c), and
    Type: Application
    Filed: March 19, 2010
    Publication date: February 16, 2012
    Applicant: TOSHIBA PLANT SYSTEMS & SERVICES CORPORATION
    Inventors: Yuji Katoh, Tsutsumi Nakamura, Kohji Ogata, Masaaki Furihata, Toshiharu Takai
  • Publication number: 20120031878
    Abstract: The present invention relates to a method for the highly-thick thermal coating of joints by using electrofusion in pipes used for conducting fluids, made of steel tubes externally coated with polyolefins, characterized in that it comprises the following steps: a) Placing an anticorrosive coating on the steel pipes to be joined; b) Placing and adjusting the half-round pipes in the connection area of the pipes, and possibly, the linking parts; c) Exerting pressure between the half-round pipes by using compression equipment; d) Connecting the electrical resistances to an external power source; e) Electrofusion welding the adjacent surfaces; f) Cooling and disassembling the compression elements of step c).
    Type: Application
    Filed: April 22, 2010
    Publication date: February 9, 2012
    Inventor: Juan Rukavina Mikusic
  • Patent number: 8083257
    Abstract: A closure assembly for an inflator comprises a housing and an outlet plate disposed within the housing. The outlet plate has an outlet opening configured to receive a burst disk. The outlet plate is joined to the housing by a deformation resistance weld. The deformation resistance weld is formed by contacting the outlet plate with a first electrode, contacting an exterior portion of the housing with a second electrode, and applying a voltage through the first and second electrodes to adhere a portion of the housing to a portion of the outlet plate.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: December 27, 2011
    Assignee: Delphi Technologies, Inc.
    Inventors: Brian T. Finnigan, Venkatasubramanian Ananthanarayanan, James M. Payne, Donald E. Warren
  • Patent number: 8019206
    Abstract: A hollow tubular body for molten glass by which local-overheating in the electrode for conduction heating is prevented. A hollow tubular body for molten glass by which local-overheating in the electrode for conduction heating is prevented. A hollow tubular body having a platinum or platinum alloy hollow tube, used for conduction heating is characterized in that a ring electrode is joined to the outer circumference of the hollow tube, at least one lead-out electrode is joined to an outer edge of the ring electrode, and the ring electrode comprises a core portion of electrode of platinum or platinum alloy and a thick portion of platinum or platinum alloy or of a metallic material other than platinum or platinum alloy, provided at an outer side of the core portion of electrode.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: September 13, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Yasuharu Hirabara, Hajime Itoh
  • Patent number: 8009970
    Abstract: There is provided a method for electrically energizing and heating a platinum or platinum-alloy composite tube structure having a structure including a first main tube, a second main tube, and a branch tube connecting the first main tube and the second main tube, which prevents a local part of the branch tube from being electrically energized and heated in an excessive or insufficient manner.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: August 30, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Sei Nagano, Yasuharu Hirabara, Hajime Itoh
  • Publication number: 20110193339
    Abstract: The invention relates to electrofusion fittings. Hitherto, electrical leads (13) to electrofusion fittings have been passed through the gap between adjacent metal pipe length (1) ends, that are subsequently welded. The electrical leads remain in the weld metal as a contaminant that can be harmful to the integrity of the weld, and the objection of the invention is to eliminate the problem. The objection is met by a construction of electrofusion fitting comprising a tubular length of thermoplastic material (3), of an outer diameter commensurate with the inner diameter of the ends of a compatible thermoplastic material lining of adjacent lengths of metal pipe (1), there being at each end of the fitting at least two heater coils on or in close proximity to the outer surface of the fitting, electrical leads from the heater coils extending through the fitting to emerge at the inner surface of the tubular length, for connection to a source of electrical power.
    Type: Application
    Filed: October 8, 2009
    Publication date: August 11, 2011
    Inventor: David Michael Anthony Kenworthy