Welding Patents (Class 219/136)
  • Patent number: 10754103
    Abstract: Systems and methods are provided for universal-blindmate sleeve comprising mounting mechanisms for mounting the universal sleeve to a midplane. The universal-blindmate sleeve comprising a sleeve housing, having a first opening for receiving a first blindmate connector. The first opening is arranged at an end of the sleeve housing and facing a first side of the midplane. The sleeve housing further having a second opening for receiving a second blindmate connector, wherein the second opening is arranged at an opposing end of the sleeve housing and facing an opposing side of the midplane. A body of the sleeve housing is configured for blindmating the first blindmate connector to the second blindmate connector through the midplane.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: August 25, 2020
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Kevin B. Leigh, John Norton, Joseph Allen
  • Patent number: 10722966
    Abstract: A support ring supports a welding ring to guide welding bugs around a coated pipe section. The support ring has a tubular body to support the welding ring, the body having substantially circular curvature around a longitudinal axis. At least one grounding extension connected to the body is offset longitudinally and radially outwardly with respect to the body and the longitudinal axis. This allows the grounding extension to lie radially outboard of a parent coating of the pipe section while the body encircles a cut-back end zone where the parent coating has been cut back. Pipe sections abutting end-to-end for welding can each be fitted with these support rings. This enables welding rings to encircle both of the cut-back end zones and allows effective grounding connections to be made without enlarging the cut-back end zones.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: July 28, 2020
    Assignee: Acergy France SAS
    Inventors: Cesar Atin, Jacques Lacome
  • Patent number: 10710186
    Abstract: A method of manufacturing an impeller, the method including: a step of forming a cover that is provided with a plurality of blades; a step of disposing a core on the cover such that the core is interposed between the blades; a step of disposing a hub on the blades, the hub being a plate on which grooves conforming to shapes of the blades are formed; and a step of welding the hub and the blades, wherein through-holes conforming to the shapes of the blades are provided on the core, such that the blades are fitted in the core when the core is disposed.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: July 14, 2020
    Inventors: Esao Yamada, Kentaro Orita, Takashi Yamakawa
  • Patent number: 10709006
    Abstract: Provided is a fluid-cooled contact tip assembly that can be used in methods and systems for manufacturing objects by solid freeform fabrication, especially titanium and titanium alloy objects, where the deposition rate is increased by increasing the flow rate of electric charge through the metal wire.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: July 7, 2020
    Inventors: Tom-Erik Falla, Arne Ramsland
  • Patent number: 10657839
    Abstract: Present embodiments include systems and methods for stick welding applications. In certain embodiments, simulation stick welding electrode holders may include stick electrode retraction assemblies configured to mechanically retract a simulation stick electrode toward the stick electrode retraction assembly to simulate consumption of the simulation stick electrode during a simulated stick welding process. In addition, in certain embodiments, stick welding electrode holders may include various input and output elements that enable, for example, control inputs to be input via the stick welding electrode holders, and operational statuses to be output via the stick welding electrode holders. Furthermore, in certain embodiments, a welding training system interface may be used to facilitate communication and cooperation of various stick welding electrode holders with a welding training system.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: May 19, 2020
    Assignee: Illinois Tool Works Inc.
    Inventors: William Joshua Becker, David Paul Marcusen
  • Patent number: 10654125
    Abstract: A method of forming a weld on a work piece is disclosed. The method may include creating an internal cavity along the work piece and extending a conduit having an exit orifice into the internal cavity such that the exit orifice may be positioned adjacent to the weld to be formed. The method may further include supplying a purge gas to the conduit, the purge gas being carried through the conduit and pushed out of the exit orifice so as to displace undesirable gasses away from the weld to be formed and then subsequently forming the weld.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: May 19, 2020
    Assignee: The Boeing Company
    Inventors: William R. Schell, Edward O. Jorgenson, Jack W. Mauldin, Mark D. Gilcreest, Benjamin S. Northup
  • Patent number: 10654122
    Abstract: A gas-diffusing water-degradable welding purge dam apparatus for purging a weld zone of a pipe assembly having first and second pipes with respective first and second pipe ends to be welded together at a root gap. The purge dam apparatus includes a first air flow blocking member, a second air flow blocking member, and an interconnecting member interconnecting the first and second air flow blocking members. The interconnecting member has a hollow purge gas-receiving interior and a gas-diffusing sidewall that allows a pressurized purge gas in the gas-receiving interior to pass through the sidewall and exit therefrom in a diffused state into a weld zone external to the interconnecting member. An external purge gas entry port in the purge dam apparatus in fluid communication with the gas-receiving interior. The purge dam apparatus includes one or more water degradable materials so it can be flushed from the pipe assembly following welding.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: May 19, 2020
    Inventor: Michael Hacikyan
  • Patent number: 10625380
    Abstract: The present disclosure relates to a method which uses welding in order to join a FeCrAl alloy to a FeNiCr alloy by using a specific filler metal. The present disclosure also relates to a product obtained thereof. Further, the present disclosure relates to the use of the method, especially in high temperature applications.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: April 21, 2020
    Assignee: Sandvik Intellectual Property AB
    Inventors: Thomas Blomfeldt, Anders Wallero, Asa Larsson, Anders Wilsson
  • Patent number: 10556282
    Abstract: A deburring subassembly has a controller to generate an electrical current and move a deburring tool bit from a non-deburring position to a range of deburring positions. The electrical current permits deburring of the workpiece without damaging it. A workpiece securement subassembly secures the workpiece for formation on a computer numerical controlled (CNC) machine tool and also holds the workpiece in place for deburring. The electrical current is provided to a deburring tool bit. The controller thereby controls movement of the deburring tool bit to the range of deburring positions and generates the electrical current to deburr the workpiece.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: February 11, 2020
    Inventors: Jerry Mraz, Jonathan Montgomery
  • Patent number: 10543557
    Abstract: A welding torch includes a main body and an end portion suited to be fed through the main body with a welding wire and a shielding gas. The end portion includes a welding unit electrically powered and provided with an internal channel for the passage of the welding wire. A conveyor element is provided with an outlet mouth to allow the welding wire to move out of the welding unit and to allow the shielding gas to be conveyed outside of the welding unit. Electrical insulation means are interposed between the welding unit and the conveyor element with an insulation portion made of an electrically non-conductive material. The welding torch includes the conveyor channel suited to convey the shielding gas from the main body to the outlet mouth of the conveyor element. The conveyor channel is delimited at least partially by the insulation portion.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: January 28, 2020
    Assignee: TRAFIMET GROUP S.P.A.
    Inventors: Claudio Carletti, Ugo Simioni, Attilio Imi
  • Patent number: 10507878
    Abstract: The present disclosure provides a vehicle body transfer system using a transfer unit. The system may include a base configured to move along a base rail; a moving unit comprising a supporting part that is configured to support a vehicle body, wherein the moving unit is configured to move the supporting part in a predetermined direction and the moving part is disposed on the base; and a tool unit disposed outside the base rail and selectively engaged to the moving unit, wherein the tool unit is configured to provide a driving torque such that the moving unit controls a position of the supporting part.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: December 17, 2019
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventors: Hyunwoo Lee, Ji Eun Jang, Yoon Jang
  • Patent number: 10505289
    Abstract: A portable welding ground clamp attachment system used to attach a welding ground clamp (also called a work clamp or work cable) of an arc welder to a workpiece to be welded. The system is particularly useful in establishing positive connections between a work cable and extended lengths of pipe.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 10, 2019
    Inventor: Christopher Bryan Trussell
  • Patent number: 10391579
    Abstract: A welding electrode is mounted in a tool holder that is part of a handle apparatus. The handle apparatus has an electrode power connection. The handle apparatus has a housing defining a haft that can be grasped in the hand of an operator. A vibrator is mounted inside the haft. The vibrator includes a force transmitter in the form of a cantilevered beam. The cantilevered beam is electrically conductive and carries power to the tool holder. The tool holder has a handle that permits the welding rod to be rotated about its axis as it wears during deposition of welding rod material on the object work piece.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: August 27, 2019
    Inventor: Nigel Scotchmer
  • Patent number: 10376984
    Abstract: A method of resistance spot welding a workpiece stack-up that includes a steel workpieces and an aluminum alloy workpiece that overlie and contact one another to establish a faying interface at a weld site is disclosed. The method comprises passing a DC electrical current through the workpiece stack-up at the weld site and causing the current to assume a conical flow pattern. The conical flow pattern has a path of current flow that expands along a direction leading from a first welding electrode in electrical communication with the steel workpiece towards a second welding electrode in electrical communication with the aluminum alloy workpiece.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: August 13, 2019
    Inventors: David R. Sigler, Blair E. Carlson
  • Patent number: 10322464
    Abstract: A welding system and a method of control. The welding system may include a weld gun that may have an induction coil and a guide sleeve. The induction coil may heat a welding electrode in the weld gun. The guide sleeve may inhibit the welding electrode from engaging the induction coil.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: June 18, 2019
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Yang Zhai, John Kelly
  • Patent number: 10232455
    Abstract: The invention describes methods of welding onto laminated devices using a low temperature welding process. Also described are laminated devices with welds that do not disrupt a brazed core block of sheets in the laminated devices. Novel laminated devices with welded features for servicing the devices are also described.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: March 19, 2019
    Assignee: Velocys, Inc.
    Inventors: Thomas Yuschak, Anna Lee Tonkovich
  • Patent number: 10220463
    Abstract: A welding system having a welding gun with a contact tip having an bore extending therethrough and a consumable weld wire. The cross-sectional shape of the bore of the contact tip being is essentially identical to the cross-sectional shape of the weld wire. The bore having an essentially elliptical cross-sectional shape and the weld wire having an essentially elliptical cross-sectional shape.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: March 5, 2019
    Inventor: Edward L. Cooper
  • Patent number: 10213873
    Abstract: A scrap removal device for a laser processing device includes a gas deflector having an optical channel; a looped gas channel; and a looped gas outlet. The looped gas outlet is connected to the looped gas channel, the optical channel is configured for a laser beam to transmit through, the looped gas channel surrounds the optical channel, and a section of the looped gas channel close to the looped gas outlet is inclined. The scrap removal device further includes a gas source furnished on the gas deflector and in communication with the looped gas channel for providing a gas flow to flow into the looped gas channel. The gas flow is joined with the laser beam transmitting along a looped processing path when flowing out of the gas deflector through the looped gas channel and the looped gas outlet.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: February 26, 2019
    Inventors: Chun-Ming Chen, Chun-Jen Gu, Chun-Ping Jen
  • Patent number: 10195684
    Abstract: A method of connecting two components (1, 6) is disclosed, wherein a first component (1) is connected to a second component (6) at a connecting point (4) of the first component (1), and wherein a surrounding region (3), which surrounds the connecting point (4), is heated by electrical resistance heating prior to the two components (1, 6) being connected, so that the ductility of the first component (1) in the surrounding region (3) is increased and the strength is substantially reduced.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: February 5, 2019
    Inventors: Rolf Peter Röttger, David Pieronek
  • Patent number: 10189114
    Abstract: A process and apparatus for free form fabrication of a three-dimensional work piece comprising (a) feeding raw material in a solid state to a first predetermined location; (b) depositing the raw material onto a substrate as a molten pool deposit under a first processing condition; (c) monitoring the molten pool deposit for a preselected condition; (d) comparing information about the preselected condition of the monitored molten pool deposit with a predetermined desired value for the preselected condition of the monitored molten pool deposit; (e) solidifying the molten pool deposit; (f) automatically altering the first processing condition to a different processing condition based upon information obtained from the comparing step (d); and repeating steps (a) through (f) at one or more second locations for building up layer by layer a three-dimensional work piece.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: January 29, 2019
    Assignee: SCIAKY, INC.
    Inventor: Scott Stecker
  • Patent number: 10189108
    Abstract: A contact tip for hot-wire welder is provided that are adapted to operate in deep and narrow recessed gaps within a work piece. Contact tips in accordance with the current invention provide for an assembly having a body portion with a cavity and an extension portion which is inserted into the cavity. The extension portion is non-electrically conductive and allows the contact tip assembly to reach into deep, narrow grooves without worry of shorting the contact tip of the consumable.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: January 29, 2019
    Assignee: Lincoln Global, Inc.
    Inventors: Maxwell Radke, Michael Latessa
  • Patent number: 10016849
    Abstract: A method for welding a weld-on element onto a component is proposed, comprising at least the step that, before the welding process, at least one of the parts being connected is wetted with a wetting agent over the full area and uniformly in layer thickness in a welding region.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: July 10, 2018
    Inventors: Dietmar Rotheut, Gerald Kuehn, Theodore John Coon, Jason Carter, Melissa Marie Brutto, David J. Lawrence
  • Patent number: 9943968
    Abstract: The invention relates to a method or a system for the dependable stopping of axes of an industrial robot. The industrial robot comprises a control device (501, 502), power electronics (201, 202, 203) and a DC source (300), as well as at least one axis (700), which is assigned to an electric motor (100) and to a mechanical brake (600). In order to stop the axis a direct current is supplied by the DC source in at least one motor phase of the motor, which generates a braking torque.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: April 17, 2018
    Assignee: KUKA Roboter GmbH
    Inventors: Torsten Geiler, Richard Rudolf
  • Patent number: 9895762
    Abstract: Embodiments of the present invention are wire feeders and wire feeder cable connections which include a power block portion, a cable connection portion and a liner guide assembly portion. The liner guide assembly portion and power block portion are structured and assembly so that a liner guide can be removed from a welding cable from inside the wire feeder, without removing the cable connector from the wire feeder.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 20, 2018
    Assignee: Lincoln Global, Inc.
    Inventor: Jeffrey Kachline
  • Patent number: 9873534
    Abstract: Tooling for an ultrasonic tube sealer includes an ultrasonic horn tip and an anvil. The ultrasonic horn tip and the anvil each have at least one forming tool. The forming tools have a configuration that form an end of a tube when it is sealed by the ultrasonic tube sealer to be rounded.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: January 23, 2018
    Assignee: Branson Ultrasonics Corporation
    Inventors: Guillermo Coto, Michael Davis, Gene Pollastro
  • Patent number: 9846439
    Abstract: Systems and methods for automatically regulating the flow of fumes suctioned through a welding fume gun are provided. In certain embodiments, an automatic flow control assembly includes a vacuum system configured to suction a vacuum fume flow through an internal passage of a welding fume gun. The automatic flow control assembly also includes a sensor configured to measure a parameter related to the vacuum fume flow. The automatic flow control assembly further includes a flow regulation device configured to regulate an ambient air flow introduced into the vacuum fume flow. In addition, the automatic flow control assembly includes control circuitry configured to control the flow regulation device based at least in part on the measured parameter related to the vacuum fume flow.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: December 19, 2017
    Assignee: Illinois Tool Works Inc.
    Inventors: Bradley G. Carman, Anders Olof Rostlund
  • Patent number: 9833862
    Abstract: A method and system to manufacture workpieces employing a high intensity energy source to create a puddle and at least one resistively heated wire which is heated to at or near its melting temperature and deposited into the puddle as droplets.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: December 5, 2017
    Assignee: LINCOLN GLOBAL, INC.
    Inventors: Paul E Denney, Steven R Peters, Badri Narayanan, Dionysus Damato, Michael Whitehead
  • Patent number: 9806435
    Abstract: The present invention relates to a flexible connector for attaching electrical accessories to an industrial battery electrical cable. The connector includes a housing and an electrically conductive pin that is positioned within the housing and protrudes through a cable mating surface of the housing. The connector also includes a fuse positioned within the housing and electrically connected to the portion of the pin within the housing, and a conductive wire, wherein at least a portion of the wire is positioned within the housing and electrically connected to the fuse. At least the cable mating surface of the housing is suitably flexible to conform to the contours of an electrical cable insulation surface when the pin pierces through the insulation surface of the electrical cable to which the connector is attached.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: October 31, 2017
    Inventor: Duncan Jones
  • Patent number: 9731373
    Abstract: A method for hard surface deposition on aluminum metal parts of a turbine engine using MIG welding equipment which includes a pulsed current generator and pulsed filler metal wire feed, wherein the deposition is achieved using a filler metal wire whose composition is of the same nature as the composition of the aluminum alloy of the part to undergo hard surface deposition, with the pulsed metal wire feed and speed of deposition on the metal part of the turbine engine being adapted to carry out deposition without hot fissuring.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: August 15, 2017
    Inventors: Jean-Baptiste Mottin, Jean-François Castagne, Thierry Baudin, Alexandre Yann Michel Benoit, Pascal Paillard
  • Patent number: 9700956
    Abstract: A system includes a welding power supply. The welding power supply includes circuitry configured to produce power for a welding operation. The welding power supply also includes a compartment interior to the welding power supply and configured to hold one or more welding electrodes. In addition, the welding power supply may include a covering configured to be removably disposed in an opening of the compartment to allow access to the welding electrodes in the compartment.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: July 11, 2017
    Inventors: Scott Ryan Rozmarynowski, Brian Scott Bashore
  • Patent number: 9669487
    Abstract: A contactor providing for electrical contact in a welding torch includes a body member having first and second opposite sides, and adjacent pivot and head portions. The pivot portion has an outwardly curved contact surface on the second side providing a pivot point. The head portion also has a contact surface on the second side. The pivot portion has a shorter length between the first and second sides than the head portion. The contactor may be pivotally mounted in a torch connector body. At least one resilient member urges the contact surface of the pivot portion into engagement with an inner flange surface of the connector body, and biases the head portion into an opening in the torch connector body. The contact surface of the head portion is engageable with a torch neck inserted into the torch connector body, and provides an electrical connection between the torch body and neck.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: June 6, 2017
    Inventor: Nauman Basit
  • Patent number: 9630271
    Abstract: A welding gun includes a bending pipe (10), an insulating barrel (20) mounted on a mounting seat (11) of the bending pipe, a nozzle (30) mounted on the mounting seat (11) of the bending pipe, a connector (40) connected with the insulating barrel, and a cap (50) connected with the connector. The mounting seat has a groove (14) which has a periphery provided with a plurality of flow channels (15). The insulating barrel has an interior provided with an air chamber (23) connected to the flow channels. The air chamber includes a plane (85) and a guiding wall (86) to evenly stabilize a pressure of a welding gas. The insulating barrel has a mediate portion provided with a recessed end face (24) which is provided with a plurality of guiding holes (25) connected to the air chamber.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: April 25, 2017
    Inventors: Yung-Sheng Lin, Shui-Chi Kuo
  • Patent number: 9619779
    Abstract: Methods and systems are disclosed that allow automated pre-qualification and qualification of an application. An application description can be generated for an application submitted by a developer, the application description can be automatically examined to determine whether the application complies with rules or guidelines (e.g., policies) of a platform. If the application complies with the rules or guidelines, the application can be pre-qualified and submitted for approval and distribution. If the application does not comply with the rules or guidelines, the application developer can be notified of the errors in the application and the developer can be prevented from uploading the application for approval and distribution.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: April 11, 2017
    Assignee: Apple Inc.
    Inventors: Jason Robert Fosback, Ricardo D. Cortes, David Makower
  • Patent number: 9610647
    Abstract: A welding torch, in particular a handheld welding torch, for a melting welding wire, which is guided in a wire core arranged within a protective hose, fastens the protective hose and the welding core within a torch housing of the welding torch independently from one another. For minimizing stresses on the welding torch by the hose package, the protective hose is fastened rotatably and pivotably and the wire core is fastened rotatably to the torch housing.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: April 4, 2017
    Assignee: Fronius Intenational GmbH
    Inventors: Franz Soringauer, Rudolf Brandstötter
  • Patent number: 9555497
    Abstract: A plasma arc torch is provided that includes a torch body and a torch height controller. The torch height controller includes a movable part mounted to the torch body and a fixed part connected to a robotic arm. The movable part and the torch body are biased toward a workpiece and are translational relative to the fixed part.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: January 31, 2017
    Assignee: Victor Equipment Company
    Inventors: Daniel Wayne Barnett, Christopher V. Braudis, Sr., Nakhleh Hussary, Dirk Ott
  • Patent number: 9506363
    Abstract: A welding method including the steps of: providing, in a first position, a weld target assembly having a welding region and a weld tab located adjacent the welding region, the weld tab changeable from a first physical configuration to a second physical configuration when subject to a first type of weld operation; performing a first weld process on the welding region and weld tab; moving the assembly from the first to a second position; providing safeguard apparatus for cooperating with the weld tab to: prevent the assembly from moving to the second position when the first weld procedure did not include the first type of weld operation; and permit the assembly be moved to the second position when the first weld procedure included the first type of weld operation. The assembly includes a sub-assembly having a foot member and blade portion welded together, thereby ultimately forming an output guide vane.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: November 29, 2016
    Assignee: ROLLS-ROYCE plc
    Inventor: Matthew David Curren
  • Patent number: 9498839
    Abstract: A method providing a welding apparatus configured to supply a welding wire to a welding gun and a welding system implementing the same is described. The welding gun has a trigger and an opening where the welding wire extends when the trigger is activated. The method also has a computer with a user interface that includes an automatic wire retract program, the program dynamically adjusting the amount of welding wire retraction based at least upon one of the following: welding arc current, welding wire size, welding wire speed and burnback time. The program monitors the welding gun and determines when the trigger is disabled. The program indicates when a first condition is satisfied and retracts the welding wire so the welding wire preferably does not extend (or minimally extends—or may be at least partially recessed within the tip) from the opening of the welding gun nozzle tip.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: November 22, 2016
    Assignee: LINCOLN GLOBAL, INC.
    Inventors: Edward Hillen, David Kempert, Joe Daniel
  • Patent number: 9483493
    Abstract: A method and system for accessing an HDFS is disclosed. In some embodiments, a method of providing access to an HDFS includes: at an interface server having one or more processors and memory: maintaining a respective connection pool comprising a respective plurality of persistent connections to the HDFS; receiving respective access requests from a plurality of accessing devices to access the HDFS; creating a corresponding Hadoop operation for each of the respective access requests received from the plurality of accessing devices; and executing the corresponding Hadoop operation created for each of the respective access requests through a respective set of persistent connections selected from the respective connection pool maintained by the interface server.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: November 1, 2016
    Inventor: Yunjia Wu
  • Patent number: 9440304
    Abstract: A welding system having a welding gun with a contact tip having an bore extending therethrough and a consumable weld wire. The cross-sectional shape of the bore of the contact tip being is essentially identical to the cross-sectional shape of the weld wire. The bore having an essentially elliptical cross-sectional shape and the weld wire having an essentially elliptical cross-sectional shape.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 13, 2016
    Inventor: Edward L. Cooper
  • Patent number: 9193005
    Abstract: The welding contact tips presented herein include contoured inner bores that include a front inner bore section and a back inner bore section. In certain embodiments, the front inner bore section is approximately 0.3-0.6 inches long and includes an inner wall having a substantially constant inner diameter. The back inner bore section is configured to conform to the specific welding wire used with the welding contact tip. In particular, the back inner bore section includes an inner wall having an inner diameter that is substantially larger at an axial end of the welding contact tip than at an axial transition location where the front and back inner bore sections abut. As such, the welding contact area between the welding contact tip and the welding wire is enhanced in the front inner bore section, especially when the welding wire twists inside the contact tip and the welding torch.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: November 24, 2015
    Inventors: Tiejun Ma, Romeo N. Cossette
  • Patent number: 9193004
    Abstract: The invention described herein generally pertains to a system and method for a voltage sense lead being disposed on or within a welder gun in a hot wire application (e.g., hot wire laser, hot wire hybrid, and the like) to monitor voltage across the electrode. In this manner, resistive heating can be regulated to ensure that the wire and weld pool (e.g., puddle) temperature are within a desired range. The voltage sense lead can be incorporated into a welder gun or onto a welder gun in order to mitigate inaccuracies and voltage drops resultant of a cable connecting the welder gun to the wire feeder of a hot wire system.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: November 24, 2015
    Assignee: Lincoln Global, Inc.
    Inventors: Edward A. Enyedy, Steven R. Peters
  • Patent number: 9162313
    Abstract: A system and method of feeding wire is provided using at least one roller which is biased towards the wire. The at least one roller is permitted to deflect a limited amount during the wire feeding operation. The roller is permitted to deflect 50% or less than the wire diameter during feeding to prevent tangling.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: October 20, 2015
    Assignee: LINCOLN GLOBAL, INC.
    Inventor: Edward Enyedy
  • Patent number: 9120182
    Abstract: Methods and systems for housing a consumable storage bin in addition to structural, thermal management, pneumatic, and/or electronic system components in a single multifunctional component within a plasma cutting power supply are provided. One embodiment of the present disclosure relates to a consumable storage bin, which fits into a consumable storage area in the power supply unit and is accessible to a user. In one embodiment, the consumable storage bin may be eliminated, leaving only the consumable storage area in which racks, snaps, friction-fit retention features, and so forth, may be placed to hold the consumables and ensure easy user access.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: September 1, 2015
    Inventor: Brian James Bornemann
  • Patent number: 9089918
    Abstract: A grounding system is provided for welding applications. The system comprises a pair of contacts that are brought into close grounding contact with a workpiece, and a measurement circuit coupled to the contacts. The contacts may be urged into intimate contact with the workpiece by a biasing structure that pulls the contacts tightly against the workpiece. The measurement circuit may include a center-tap transformer having a secondary coupled to a ground lead and to the contacts. A primary winding of the transformer is coupled to an oscillator that executes a measurement test. The system may provide an indication of the quality of the ground in the form of an operator perceptible notification, a digitized value, or any other suitable form.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: July 28, 2015
    Inventors: Joseph Carl Gitter, George Harold Baus, Anthony Van Bergen Salsich
  • Patent number: 9089920
    Abstract: The invention relates to a method for changing a welding process during a welding operation, wherein the change is carried out from a welding process that was conducted to a subsequent welding process during a short circuit between a melting welding wire and a workpiece, and to a method for applying heat prior to a welding operation. In order to achieve a welding process with high process stability, it is provided that, upon detecting the short circuit of the welding process that is conducted, the welding wire (9) is still moved for a defined duration (32) in the movement direction and subsequently stopped, depending on a threshold value (34) of the welding current (I) of the subsequent welding process, whereupon upon reaching the threshold value (34) of the welding current (I), the welding wire (9) is moved in the opposite direction in order to start the subsequent welding process.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: July 28, 2015
    Assignee: Fronius International GmbH
    Inventors: Joerg Kazmaier, Josef Artelsmair, Willi Baumann, Walter Stieglbauer
  • Publication number: 20150144609
    Abstract: A technique for dynamically adjusting an output voltage for a welding or cutting operation is provided. The technique allows for varying output voltage at the welding or cutting torch by manipulating the duty cycles of two forward converter circuits. The present disclosure provides methods and systems for increasing synchronized duty cycles in a pair of forward converter circuits in response to increasing output voltage demand then changing a phase shift between the duty cycles in response to further increases in output voltage demand. The present disclosure provides a controller designed to receive input signals and generate output pulse width modulation signals that control the duty cycle width and phase shift of the outputs of the forward converter circuits in response to these signals. Methods of accommodating for the time needed for the transformer core to reset via leading edge or lagging edge compensation are provided.
    Type: Application
    Filed: February 3, 2015
    Publication date: May 28, 2015
    Inventor: Bernard J. Vogel
  • Patent number: 9039478
    Abstract: Provided is an apparatus for manufacturing a deposition mask assembly for a flat panel display, which prevents a pattern from being distorted in a pattern mask when divided pattern masks are welded to a support fixture. An apparatus for manufacturing a deposition mask assembly for a flat panel display of the present description, which includes a frame mask forming an opening, a support fixture installed in the frame mask, and a pattern mask welded to the support fixture to have a pattern allowing a deposition material to be transmitted therethrough, includes: a welding head disposed in a side of the pattern mask; and a support member supporting the support fixture in an opposite side of the welding head with the pattern mask interposed therebetween.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eui-Gyu Kim, Suk-Ho Kang
  • Patent number: 9035220
    Abstract: A cold metal transfer welding process is defined by the cyclic alternation of an arc phase and a short-circuit phase. During the arc phase, a welding rod is displaced towards the workpiece until it makes contact with the workpiece and during the short-circuit phase the welding rod displacement is reversed and the welding rod is then moved away from the workpiece. The welding current and/or the welding voltage are controlled during the arc phase in such a way that the welding rod melts, forming a droplet and that during the short-circuit phase a breaking of the short-circuit is suppressed using the welding current. A welding installation for carrying out the welding method achieves optimal welding results using the smallest possible number of settings by setting a displacement frequency of the welding rod as a welding parameter using a control organ.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: May 19, 2015
    Assignee: Fronius International GmbH
    Inventor: Manfred Schörghuber
  • Publication number: 20150129567
    Abstract: The invention described herein generally pertains to a system and method for protecting welding system components from welding spatter emitted during welding operations.
    Type: Application
    Filed: February 11, 2014
    Publication date: May 14, 2015
    Applicant: LINCOLN GLOBAL, INC.
    Inventor: Richard Dean TRAVER
  • Publication number: 20150129557
    Abstract: A welding system comprising a frame having a curved profile configured to at least partially surround a cylindrical work piece, a welding torch supported on the frame a motor supported on the frame and extending outward therefrom the motor being connected to at least one of the frame around the welding torch to move the welding torch relative to the workpiece a motor housing in which at least a portion of the motor is received, the motor housing defining a cooling receiver a cooling assembly adapted to circulate a coolant through the housing, the cooling assembly including a supply line and a return line connected to a cooling insert, the cooling insert being received in the cooling receiver, the cooling insert defining a cooling passage through which the coolant is circulated; wherein the supply line and return line are sealingly attached to the cooling insert with the motor housing.
    Type: Application
    Filed: February 11, 2014
    Publication date: May 14, 2015
    Applicant: LINCOLN GLOBAL, INC.