Gun Patents (Class 219/137.31)
  • Patent number: 10335883
    Abstract: A welding system includes an orientation sensing system associated with a welding torch and is configured to sense a welding torch orientation relative to a direction of gravity. The welding system also includes a processing system communicatively couple to the orientation sensing system and configured to determine an angular position of the welding torch relative to a pipe based at least in part on the sense welding torch orientation.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: July 2, 2019
    Assignee: Illinois Tool Works Inc.
    Inventors: Bruce Patrick Albrecht, William Todd Watson
  • Patent number: 10322465
    Abstract: A nozzle assembly for a welding torch, a welding torch that includes said nozzle assembly, and a method of using the welding torch is provided. The nozzle assembly generally comprises an insulator having a plurality of grooves around an outer periphery, a plurality of sealing members disposed within the grooves of the insulator; and a nozzle body slip-fit around the insulator, such that at least one of the insulator and the nozzle body define position indicia.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: June 18, 2019
    Assignee: Victor Equipment Company
    Inventors: Khalid Hassan, Glenn K. Redding
  • Patent number: 10265867
    Abstract: A robotic accessory mounting assembly used in connection with a robot to attach an accessory to the robot, the mounting assembly including a cable connected to an implement mounted on the robot; the cable having a cable length; the implement including a first component having a first length, wherein the implement with the first component has an implement length that corresponds to the cable length; and a second component adapted to replace the first component, the second component having a length less than the first component, wherein replacement of the first component with the second component reduces the implement length defining a clearance relative to the cable length to receive an accessory mount in-line with the implement.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: April 23, 2019
    Assignee: Lincoln Global, Inc.
    Inventor: Jeffrey Kachline
  • Patent number: 10220459
    Abstract: To perform highly accurate cutting according to stable power feed from a machining power supply, a wire electric discharge machining apparatus includes a wire wound over main guide rollers a plurality of times to simultaneously perform a plurality of kinds of cutting. Wire laying work for a plurality of the wires on power feed elements is reduced, uniform power is fed to cutting wire sections, stable machining is intended, and according to alignment positions, for each of units, a plurality of the power feed elements are aligned to correspond to a wire parallel arrangement interval of the cutting wire sections set as power feed targets and are disposed to feed power to the cutting wire sections with an interval of at least every other cutting wire section.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 5, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hidetaka Miyake, Atsushi Itokazu, Takashi Hashimoto
  • Patent number: 10179370
    Abstract: A welding system includes a wire drive assembly having feed rolls for feeding welding wire through a welding torch assembly. The welding system also includes a rear structure disposed at an upstream end of the welding torch assembly, a forward structure disposed at a downstream end of the welding torch assembly, and a continuous guide structure. The rear structure has a rear structure aperture through which the welding wire is received, the forward structure has a forward structure aperture through which the welding wire is output, and the continuous guide structure is disposed between and coupled to the rear structure aperture and the forward structure aperture. The rear structure aperture is aligned with a first axis, the forward structure aperture is aligned with a second axis, and the first and second axes are offset from each other.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: January 15, 2019
    Assignee: Illinois Tool Works Inc.
    Inventor: Paul William Garvey
  • Patent number: 10081072
    Abstract: A welding torch has a torch handle. A wire drive assembly is disposed in the torch handle and includes a drive motor and a drive roller. The wire drive assembly contacts the welding wire and is configured to drive the welding wire from a wire feeder to a welding operation. In addition, the welding torch has a trigger and a wire feed speed adjustment assembly. The trigger is disposed near a rear end of the torch handle and is configured to be depressed by an operator for initiating feed of the welding wire. The adjustment assembly is positioned near the rear end of the handle adjacent to the trigger and on the same side of the handle as the trigger. The adjustment assembly allows operator adjustment of a feed speed of the welding wire.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 25, 2018
    Assignee: Illinois Tool Works Inc.
    Inventors: Paul William Garvey, Chris J. Roehl
  • Patent number: 9873163
    Abstract: A welding wire conveyor device (1) and a method for locking a pivotable roll receiver off the welding wire conveyor device (1). The device includes a drive roll receiver (11) and a pivotable pressure roll receiver (10). The pressure roll receiver (10) is coupled to a pivotable actuation mechanism (20) enabling movement to a pivoted position. The pressure roll receiver (10) may be locked in the pivoted position by a locking device (200).
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: January 23, 2018
    Assignee: ALEXANDER BINZEL SCHWEISSTECHNIK GMBH & CO. KG
    Inventors: Klaus Henche, Hubert Metzger, Andre Faber
  • Patent number: 9583023
    Abstract: A welding training system includes a welding training software having a first training mode configured to simulate a welding arc and a second training mode configured to use a live welding arc. The welding training system is configured to block welding power flow between a welding power supply and a welding torch while the welding training software is in the first training mode. The welding training system is also configured to enable the welding power to flow between the welding power supply and the welding torch while the welding training software is in the second training mode.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 28, 2017
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: William J. Becker, Kyle A. Pfeifer
  • Patent number: 9180547
    Abstract: A method for extracting fumes from a robotic welder is disclosed. The method includes controlling a robotic welder to produce a weld and extracting fumes produced by the robotic welder via a vacuum source. The method also includes selectively varying the vacuum source as a function of the position of the robotic welder.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: November 10, 2015
    Assignee: Caterpillar Inc.
    Inventor: William N. Brenneke
  • Patent number: 9138824
    Abstract: A welding gun adapted to secure a contact tip within the welding gun without threading the contact tip and without the use of tools. The contact tip may be adapted to abut a surface of a first member disposed within the welding gun. The surface may be a surface of a gas diffuser. The surface may be adapted to abut the contact tip. The contact tip also may be adapted for abutment with a second member to urge the contact tip toward the first member. The second member may be a portion of a nozzle adapted to abut the contact tip to urge the contact tip toward the surface of the first member. A method of assembling a welding gun also is provided. The method may include disposing a contact tip between a first and a second member and capturing the contact tip between the first and second members.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: September 22, 2015
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventor: William R. Giese
  • Patent number: 9102000
    Abstract: Embodiments of a welding wire feeder including a pushbutton wire guide holder are provided. The wire guide holder may allow for the insertion and removal of a welding wire guide by depression of a spring-biased pushbutton and hold the wire guide with force applied by a spring. The pushbutton is disposed in a body, and a stop placed in contact with the pushbutton may prevent the pushbutton from being forced out of the body by the spring force. Some embodiments are directed toward holding inlet wire guides or intermediate wire guides, and therefore include different configurations of the body, pushbutton, spring, and stop.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: August 11, 2015
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Nicholas Alexander Matiash, Mark R. Christopher
  • Publication number: 20150136747
    Abstract: An arc welding apparatus comprises a conductor tube defining an internal passageway is disclosed. The conductor tube further defines an external surface profile and a distal end portion. The conductor tube is configured to engage a sleeve having inner and outer surface profiles. The inner surface profile is configured to abut the external surface profile of the conductor tube, and the outer surface profile comprises an engaging portion.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Khalid Hassan, Glenn K. Redding
  • Publication number: 20150136748
    Abstract: A nozzle assembly for a welding torch, a welding torch that includes said nozzle assembly, and a method of using the welding torch is provided. The nozzle assembly generally comprises an insulator having a plurality of grooves around an outer periphery, a plurality of sealing members disposed within the grooves of the insulator; and a nozzle body slip-fit around the insulator, such that at least one of the insulator and the nozzle body define position indicia.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Inventors: Khalid Hassan, Glenn K. Redding
  • Patent number: 9035221
    Abstract: A gas metal arc welding system that includes first and second welding torch assemblies arranged to operate in tandem. The first welding torch assembly further includes a rotable torch body; a contact tip connected to one end of the rotatable torch body, wherein the contact tip further includes an angled passage formed therethrough; a consumable wire electrode passing through the rotating torch body and exiting the contact tip through the offset exit hole; and a source of shielding gas. The second welding torch assembly further includes a non-rotatable torch body; a contact tip connected to one end of the non-rotatable torch body; a consumable wire electrode passing through the non-rotatable torch body and exiting through the contact tip; and a source of shielding gas.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: May 19, 2015
    Assignee: EDISON WELDING INSTITUTE, INC.
    Inventors: Marc A. Purslow, Jeff Root, Bradley A. Nagy, Victor M. Penrod
  • Publication number: 20150129570
    Abstract: An arc welding apparatus includes a conductor tube assembly that has a collar assembly with a collar body that is biased by a spring. A consumable assembly is mechanically secured to the conductor tube and displaces the collar body and the collar body imparts a biasing force against the consumable assembly pretensioning the consumable assembly on the conductor tube assembly.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 14, 2015
    Inventors: Glenn K. Redding, Khalid Hassan
  • Patent number: 8993928
    Abstract: An attachment device for use in connecting a conductor tube to a handle of a welding gun is provided that includes an adapter disposed proximate the handle of the welding gun, wherein the adapter defines a plurality of radially spaced receiving portions. A conductor tube is disposed adjacent the adapter, and the conductor tube defines at least one extension disposed near a proximal end portion of the conductor tube. The plurality of radially spaced receiving portions are adapted for engagement by the extension of the conductor tube such that the conductor tube can be repositioned relative to the handle of the welding gun.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: March 31, 2015
    Assignee: Victor Equipment Company
    Inventor: Patrick A. Laymon
  • 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
  • Publication number: 20150069039
    Abstract: A mount for connecting a welding gun to a welding robot's arm. An articulated joint is provided between two rigid elements of the mount. The joint includes a sleeve securable to a first element. A first bore is provided on the second element. The sleeve is inserted into the bore. The bore's inner diameter and the sleeve's outer diameter are such as to allow the second element to turn with the first bore relative to the sleeve. An expansion element provided in the interior of the sleeve is displaceable in the longitudinal direction of the sleeve. The expansion element has a central opening through which a tensioning bolt is passed. The bolt threadably engages a support element causing expansion of the sleeve, thereby causing the sleeve to seize around the circumference thereof in the bore. The expansion and seizing of the sleeve is neutralized by a release and stop.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 12, 2015
    Inventor: Albert Lutgenau
  • Patent number: 8975555
    Abstract: A protective shell for surrounding a portion of a body of a handheld plasma torch includes a first and second shell section. The plasma torch body includes a handle, a head extending from the handle and a torch tip extending from the head. The first shell section is structurally independent from an outer surface of the plasma torch body. The second shell section is structurally independent from the outer surface of the plasma torch body and is capable of being secured to the first shell section such that, in combination, the first and second shell sections surround the torch head and provide (i) structural protection to the torch head and (ii) thermal insulation to the torch head, wherein the first and second shell sections are electrically insulated relative to the torch head.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: March 10, 2015
    Assignee: Hypertherm, Inc.
    Inventors: Jesse Roberts, Peter Twarog
  • Patent number: 8952294
    Abstract: The present technique relates to a welding torch handle that has an unenclosed slot extending from one end thereof. This unenclosed slot provides a mechanism through which insulated signal leads of a conductor can extend from the interior of the handle to connect with a trigger disposed outside the handle. As one advantage, the unenclosed nature of the slot facilitates this coupling without the need for threading of the leads, which can damage the leads.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: February 10, 2015
    Assignee: Illinois Tool Works Inc.
    Inventor: Peter Serio
  • Publication number: 20150027997
    Abstract: A welding torch having guidance means designed to advance a wire-like welding filler material mechanically along an axis at least in a section of the welding torch, a process gas nozzle that coaxially surrounds at least the guidance means, and a welding current connector that is connected in electrically conductive manner to an element of the welding torch that is configured to conduct electrical current. A hollow electrode is provided that surrounds the axis coaxially and as the element configured for conducting current is connected in electrically conductive manner to the welding current connector, wherein the guidance means are designed to advance the wire-like welding filler material in potential free manner. The welding torch may be used as part of a welding apparatus for a variety of welding methods.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 29, 2015
    Inventors: Ernst Miklos, Faith Savgu
  • Publication number: 20140374400
    Abstract: A welding torch is provided. The welding torch includes an insulating cup removably attached to a head portion of the welding torch. The insulating cup is configured to receive an electrode. The welding torch includes a grounding collar for a contact tip. The grounding collar is attached after the insulating cup and provided around the head portion of the welding torch. The grounding collar is configured to position the contact tip in angular relation to the electrode. The welding torch further includes a body extending from the grounding collar. The body is configured to have a substantially linear configuration.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 25, 2014
    Inventor: Julio C. Gerda
  • Patent number: 8907249
    Abstract: The invention relates to a single- or multi-wire welding torch (6), more specifically to a laser-hybrid single- or multi-wire welding head provided with the welding torch (6) which can be connected to a welding device via a hose pack and consists of several parts such as a torch handle, a tubular welding torch housing, a contact housing, a contact tube for each welding wire (21a, 21b), a gas nozzle (2) etc., wherein an internal insert (28) for receiving the contact tube(s) (20a, 20b) and the gas nozzle (2) is mounted in an end area of the welding torch housing. A fixing element (30) made at least partially of a flexible material is placed on the internal insert (28) or on the housing (2) for producing as required an, in particular, gas-tight connection between said internal insert (28) and the gas nozzle (2) pushed thereon. This connection can be established by the spatial extension of the fixing element.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: December 9, 2014
    Assignee: Fronius International GmbH
    Inventors: Ewald Berger, Gerhard Miessbacher, Harald Nöbauer, Manfred Rü{umlaut over ( )}hrnössl, Herbert Staufer, Markus Steinmaurer
  • Patent number: 8853595
    Abstract: A welding gun is provided that can achieve both a size reduction and increase in pressure using a servo motor. The welding gun (1,2) includes an arm holder (30) having guide pins (31a, 31b and 32a, 32b) that are moveable along guide tracks (12a, 12b) formed in a gun bracket (10), and a mobile gun arm (40) is mounted to this arm holder. Roller followers (33a, 33b and 34a, 34b) engaging with the guide tracks around the guide pins are provided, and the mobile gun arm is made to open or close via the arm holder using a servo motor (72).
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: October 7, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Koichi Matsumoto, Hiroshi Miwa
  • Publication number: 20140272835
    Abstract: A welding training system includes a welding training software having a first training mode configured to simulate a welding arc and a second training mode configured to use a live welding arc. The welding training system is configured to block welding power flow between a welding power supply and a welding torch while the welding training software is in the first training mode. The welding training system is also configured to enable the welding power to flow between the welding power supply and the welding torch while the welding training software is in the second training mode.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: William J. Becker
  • Publication number: 20140263249
    Abstract: The invention described herein generally pertains to a system and method related to a camera device and wire guide system that includes a bracket for a wire guide and a camera device, wherein the bracket aligns the camera device to aim on a position of a welding zone for an orbital welding system. In particular, the bracket supports a wire guide to be positioned on a welding zone while also supporting a camera device that can be positioned on the welding zone. The bracket enables the welding zone to be captured by the camera device and is centered on the wire guide to remain positioned on the welding zone. The bracket provides placement of a camera device to provide video/camera visibility of the welding zone while allows adjustment of the camera device with wire location adjustment or independent of wire location adjustment.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Lincoln Global, Inc.
    Inventor: Victor Miller
  • Publication number: 20140231401
    Abstract: It is an improved alternative device for welding, comprised of a stainless steel attachment for a cordless motorized driver, with optional extended accessory for greater adjustability. The driver includes a grooved rubber roller, whose rotation feeds a rod in a forward or backward motion, controlled by pressing the corresponding starter buttons for the driver's motor. The attachment is composed of a support ring bracket, connecting a fixed track, and adjustable track. The latter can be adjusted as desired, with the former used as support for stabilizing the rod as it is fed. The driver is designed to comfortably fit an adult hand, and power the feeding process by rotating the driver shaft, on which the rubber roller is fixed. It is an improvement for its ease of use, eliminating the restricted entry in the field, by allowing beginners to safely and efficiently weld.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 21, 2014
    Inventor: Carlos David Del Rio
  • Patent number: 8803033
    Abstract: A semi-automatic brazing apparatus having a brazing wire feeding apparatus containing a brazing wire feed mechanism a controller, and a user input device. The brazing wire from a brazing wire source is continuously drawn from the source through the apparatus via the feeding mechanism and is directed towards a brazing gun for a semi-automatic brazing operation.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: August 12, 2014
    Assignee: Lincoln Global, Inc.
    Inventors: David J. Nangle, Andreu P Meckler, Robert Henson
  • Publication number: 20140166626
    Abstract: A self-adjusting wire feeder mounting assembly includes a mount fixedly connectable to a multi-axis robotic arm, and a slidable, floating adapter plate for mounting of a wire feeder thereon. The adapter plate is coupled with and slidable about the mount, and the adapter plate is moveable relative to the mount when a force is applied to the wire feeder.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 19, 2014
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Ryan M. Lizotte, Lloyd J. Steed
  • Publication number: 20140097166
    Abstract: A welding torch includes a torch housing and, preferably, a tube bend fastenable thereto. A drive unit for feeding a welding wire is arranged in the torch housing and is formed by at least a drive roller and a pressure roller, as well as a drive motor. Part of the torch housing is designed as a component of the drive unit. A rotor, in particular a motor shaft, of the drive motor is fastened to the torch housing via a bearing or bearings to stabilize and position the rotor. A welding wire feed drive motor includes bearings, a rotor, in particular a motor shaft and a rotor winding or rotor magnets, and a stator pack, in particular stator winding or stator magnets. At least a part of the motor shaft, in particular the retention zone of a drive roller, is electrically insulated from the stator housing or base body.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Inventors: Guenther Flattinger, Manfred Schoerghuber, Karin Himmelbauer
  • Publication number: 20140083990
    Abstract: The invention relates to a MIG- or MAG-welding gun, comprising a hand-held grip for supporting, handling and aiming the welding gun during a welding process, the grip including a body member (1). The grip further includes a grip member (2) pivotable relative to the body member (1) and lying alongside the body member over at least part of the same lengthwise extent as the body member. The grip member (2) has its free end pivotable to such a distance from the body member (1) that a hand grasping around the pivotable grip member (2) fits between the body member (1) and the pivotable grip member (2), the body member (1) resting on top of the hand. When the pivotable grip member (2) has its free end is in its position pivoted into the engagement with the body member (1), these two components constitute jointly a handle for the hand to grasp around.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 27, 2014
    Applicant: Ergowelder Oy
    Inventor: Erkki Tapio KETTUNEN
  • Patent number: 8680433
    Abstract: A method and apparatus for automatic or hand held welding is disclosed and includes a power circuit with a controller. The controller has a robot detector. A hand-held module and a robot interface are responsive to the robot detector. A user interface provides welding parameter setpoints to the hand held module when the robot detector detects a gun, or the absence of a robot. When a gun is present, the trigger on the gun is used to cause power to be provided, and/or welding parameters are set by the user interface on the system. When a robot is present the robot controls the process. The detection is done at start-up, or at other times.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: March 25, 2014
    Assignee: Illinois Tool Works Inc.
    Inventors: Randy R. Broadwater, Joseph K. Fink
  • Publication number: 20140076874
    Abstract: A jump liner for a push-pull MIG welding torch includes an elongated tubular body having front and back ends. The tubular body is made of a flexible plastic material. A front adapter is disposed at the front end of the tubular body. The front adapter is fittable in a retaining head of the torch. A back adapter is disposed at the back end of the tubular body. The back adapter is fittable in a gooseneck or body block of the welding torch. The front adapter provides sealing between the jump liner and the retaining head to prevent back flow leakage of shielding gas, and the front adapter prevents deformation of the tubular body at elevated temperatures. The back adapter provides sealing between the jump liner and the gooseneck or body block.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Applicant: ILLINOIS TOOL WORKS INC.
    Inventors: Romeo N. Cossette, Tiejun Ma, Craig M. Bondy, Jeffery K. Arcand, Paul W. Garvey, Chris Roehl
  • Patent number: 8674264
    Abstract: The invention relates to a method for cleaning a contact tube (20) of a welding torch (10), via which contact tube a welding wire (13) is supplied with electrical energy, said welding wire being moved towards the welding torch (10) by a wire reel (14) or a welding drum via a wire feeder (11), as well as to a welding plant (1) and a contact tube (20) for the welding torch (10) of such a welding plant (1). In order to prolong the service life of a contact tube (20) of a welding torch (10), the invention provides that the welding wire (13) is at least once moved backwards in the direction of the wire reel (4) or wire drum until the end (27) of the welding wire (13) lies at least within the length (36) of the contact tube (20), and that the welding wire (13) will subsequently again be moved forwards, in particular moved backwards into its starting position.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: March 18, 2014
    Assignee: Fronius International GmbH
    Inventors: Manfred Rührnössl, Herbert Staufer
  • Patent number: 8674263
    Abstract: The present disclosure relates to a wire guiding liner, in particular a welding wire liner, having a plurality of guiding bodies which are pivotable with respect to each other around a defined pivot axis. At least one biasing device is provided which acts between adjacent guiding bodies so as to push them apart while still allowing the liner to bend under pressure.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: March 18, 2014
    Assignee: AWDS Technologies SRL
    Inventors: Carlo Gelmetti, Filippo Corradini
  • Publication number: 20140034627
    Abstract: In one embodiment, a system is provided with a welding wire feeder that includes a first wheel having a first rotational direction, and a second wheel having a second rotational direction opposite from the first rotational direction. The first and second wheels are disposed compressively about a wire feed region, and the first and second wheels are drivingly coupled together to output substantially equal tangential speeds in the wire feed region. In addition, the first wheel, or the second wheel, or both the first and second wheels comprise a drive wheel directly coupled to a gear without separately coupling both the drive wheel and the gear to a shaft.
    Type: Application
    Filed: October 14, 2013
    Publication date: February 6, 2014
    Applicant: Illinois Tool Works Inc.
    Inventors: Jonathan R. Ertmer, Jeff Lenzner, Kenneth A. Stanzel, Ronald D. Woodward
  • Patent number: 8642922
    Abstract: In a welding torch including a torch housing (28) and, preferably, a tube bend (29) capable of being fastened thereto, wherein a drive unit (30) for feeding a welding wire (13) is arranged in the torch housing (29) and the drive unit (30) is formed by at least one pair of rollers, in particular a drive roller (31) and a pressure roller (32), as well as a drive motor, a part of the torch housing (28) is designed as a component of the drive unit (30). A rotor (45), in particular a motor shaft (46), of the drive motor (33) is fastened to the torch housing (28) via a bearing, in particular via bearings (43, 44), to stabilize and position the rotor (45).
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: February 4, 2014
    Assignee: Fronius International GmbH
    Inventors: Günther Flattinger, Manfred Schörghuber, Karin Himmelbauer
  • Patent number: 8637788
    Abstract: A conductor tube for use in a welding gun, and preferably a MIG welding gun, is provided that includes a plurality of flex joints. The flex joints include a body defining a proximal end portion and a distal end portion, a cap secured to the proximal end portion of the body, and an extension mounted within the distal end portion of the body, the extension being repositionable within the body. The body, the extension, and the cap are adapted for attachment to each other and to adjacent components of the welding gun. Additionally, a conductor tube for use in a welding gun includes a plurality of thermally and electrically conductive elements secured to each other and extending along a length of the conductor tube, wherein the elements are independently repositionable relative to each other.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: January 28, 2014
    Assignee: Victor Equipment Company
    Inventor: Patrick A. Laymon
  • Patent number: 8633422
    Abstract: A welding gun adapted to secure a contact tip within the welding gun without threading the contact tip and without the use of tools. The contact tip may be adapted to abut a surface of a first member disposed within the welding gun. The surface may be a surface of a gas diffuser. The surface may be adapted to abut the contact tip. The contact tip also may be adapted for abutment with a second member to urge the contact tip toward the first member. The second member may be a portion of a nozzle adapted to abut the contact tip to urge the contact tip toward the surface of the first member. A method of assembling a welding gun also is provided. The method may include disposing a contact tip between a first and a second member and capturing the contact tip between the first and second members.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: January 21, 2014
    Assignee: Illinois Tool Works Inc.
    Inventor: William R. Giese
  • Patent number: 8604388
    Abstract: A securement member for securing a contact tip to a welding torch assembly is provided. A channel extends axially therethrough and has an internal shoulder that extends into this channel. This internal shoulder abuts against a shoulder on the contact tip, capturing the contact tip between the shoulder and a seating surface on the diffuser and securing the contact tip in the torch assembly. The contact tip is securely seated without threading engagement, facilitating quick release and installation. The exemplary securement member couples to the diffuser such that the egress of fluid from the diffuser is blocked when used for gasless welding. This blocking allows a user to leave the diffuser secured to the welding torch when a gasless electrode is in use.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: December 10, 2013
    Assignee: Illinois Tool Works Inc.
    Inventor: Matt Dingeldein
  • Patent number: 8586892
    Abstract: Systems and methods relating to securing a torch assembly and a work lead assembly to a plasma cutting power supply are provided. The present disclosure relates to a system and method that allows the torch assembly and the work lead assembly to be readily replaced by the user since the power supply unit need not be opened or disassembled for removal. The present disclosure provides methods and systems for removably securing both the torch assembly and the work lead assembly to the plasma cutting power supply. In one embodiment, the torch assembly and the work lead assembly may be communicatively coupled to the plasma cutting power supply unit via a single cable and a single connector. The connection between the first connector and the first port may be of the quick disconnectable type. The connection between the second connector and the second port may be of the twist lock type, such as a dinse style connector.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: November 19, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Brian James Bornemann, Nathan Gerald Leiteritz
  • Patent number: 8581146
    Abstract: An apparatus and method for feeding welding wire, where the apparatus contains a wire feeding device which pays out a wire and a power source which provides a current and voltage to the wire while it is being paid out. The apparatus further includes a detection circuit which detects a short circuit in the wire when the wire makes contact with a work piece or the like, and upon detection of the short circuit the wire feeding device stops feeding the wire so that a desired stick out distance is achieved.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: November 12, 2013
    Assignee: Lincoln Global, Inc.
    Inventor: Joseph A Daniel
  • Patent number: 8575517
    Abstract: In one embodiment, a system is provided with a welding wire feeder that a first wheel having a first rotational direction, and a second wheel having a rotational direction opposite from the first rotational direction. The first and wheels are disposed compressively about a wire feed region, and the first and wheels are drivingly coupled together to output substantially equal tangential in the wire feed region. In addition, the first wheel, or the second wheel, or first and second wheels comprise a drive wheel directly coupled to a gear separately coupling both the drive wheel and the gear to a shaft.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: November 5, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Jonathan R. Ertmer, Jeff Lenzner, Kenneth A. Stanzel, Ronald D. Woodward
  • Patent number: 8569654
    Abstract: A welding system including a fine tuning knob and a coarse adjustment knob for setting a weld wire feed speed are provided. The welding system may include a welder having the coarse adjustment knob and a spool gun having the fine tuning knob. A user may adjust the knob on the welder to set a coarse adjustment wire feed speed and may adjust the knob on the spool gun to fine tune the wire feed speed setting.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: October 29, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: John Carmen Granato, Jr., Chris John Roehl
  • Patent number: 8552341
    Abstract: A welding torch comprising: a main cylindrical conductive assembly with a front diffuser section having a plurality of circumferentially spaced shielding gas diffuser orifices for directing shielding gas radially outwardly from the assembly, a forwardly facing threaded bore extending through a cylindrical support nose and an elongated wire passageway coaxial with the threaded bore and opening at the rear end of the assembly.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: October 8, 2013
    Assignee: Lincoln Global, Inc.
    Inventor: Frank Zamuner
  • Patent number: 8525078
    Abstract: A welding gun precludes moisture from penetrating inside of a motor housing due by preventing development of negative pressure inside the motor housing. The welding gun includes a feed screw mechanism that is coupled to a servo motor and has a hollow rod that reciprocally moves in a predetermined direction by way of torque applied by the servo motor, and a moveable electrode tip that is connected to a leading end portion of the hollow rod and opens and closes relative to a fixed electrode tip according to the reciprocal movement of the hollow rod. The servo motor has a motor housing in which a motor housing hollow part accommodating a portion of the hollow rod to be reciprocally moveable is formed. A vent that ventilates the motor housing hollow part with ambient air is formed in the motor housing.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: September 3, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hiroshi Miwa, Koichi Matsumoto, Teruaki Kobayashi, Eisaku Hasegawa
  • Patent number: 8450646
    Abstract: A retaining head for a MIG welding device includes a contact tip mounting end, an opposite retaining head mounting end, and a throughbore extending from one of the ends to the other end. A deflector is disposed along the throughbore and is adjustable for imparting a bend in welding wire passing through the throughbore. The deflector provides a straight wire contour for the welding wire that is fed out of the welding torch, while maintaining sufficient contact force between the welding wire and the contact tip. The deflector also reduces the effect of wire twist on the contact point between the welding wire and the contact tip.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: May 28, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Tiejun Ma, Paul-David Pinsonneault, Thomas Jaeger
  • Patent number: 8440937
    Abstract: A self-cleaning GMAW nozzle characterized by the inner surface thereof having a laminate group, preferably composed of sequentially alternating layers of metal and bonding material. Over a period of time of welding, welding spatter begins to accumulate upon an outermost metal layer of the laminate group. As the heat of welding proceeds over this same time, the adhesion of the adjoining bonding layer releases, whereby the outermost metal layer detaches, exposing a clean, new outermost metal layer. The process sequentially repeats until all metal layers have detached.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: May 14, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Jay Hampton, Alexander D. Khakhalev
  • Patent number: 8426773
    Abstract: A dual power pin connector assembly for connecting both a MIG welding gun and a spoolgun to a welding machine. The dual power pin connector is comprised of a busbar portion that electrically and mechanically couples the positive output terminal of the welding machine power supply to a wire drive for the MIG welding gun. The connector is further comprised of an integral quick release assembly/clamping portion that electrically and mechanically connects the positive power supply terminal to a power supply cable for the spoolgun. The clamping portion receives and retains a power pin coupled to one end of the spoolgun power cable in a receptacle that is manually tightened and loosened.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: April 23, 2013
    Assignee: Illinois Tool Works Inc.
    Inventors: Robert Willenkamp, Scott Rozmarynowski
  • Patent number: 8362394
    Abstract: A neck for a welding torch includes a rigid, non-tubular, elongated member having opposite first and second ends. The first end is connectable to a rear portion of the welding torch. The second end is connectable to a welding tip portion of the welding torch. The member locates and holds the welding tip portion in a precisely given location, and does not communicate welding power, welding wire, shielding gas, or cooling water between the first and second ends.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: January 29, 2013
    Assignee: Illinois Tool Works Inc.
    Inventor: Robert J. Centner