Nonconsumable Electrode (e.g., Atomic Hydrogen) Patents (Class 219/75)
  • Patent number: 10717148
    Abstract: A first electrode coolant path is configured to cool a first welding electrode by liquid coolant flowing from a supply path through the first electrode coolant path to a return path. A second electrode coolant path is configured to cool a second welding electrode by liquid coolant flowing from the supply path through the second electrode coolant path to the return path. Three or more valves are configured to stop or reduce liquid coolant flow through the first or second electrode coolant path and configured to stop or reduce liquid coolant backflow from the return path when the first or second welding electrode is at least partially detached. At least one valve is coupled in the first or second electrode coolant path. A drawback apparatus generates a suction force to draw liquid coolant away from a gap formed when the first or second welding electrode is at least partially detached.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: July 21, 2020
    Assignee: Proteus Industries Inc.
    Inventor: Mark Nicewonger
  • Patent number: 10716199
    Abstract: In some aspects, methods for providing a uniform shield gas flow for an air-cooled plasma arc torch can include supplying a shield gas to a shield gas flow channel defined by an exterior surface of a nozzle and an interior surface of a shield; flowing the shield gas along the shield gas flow channel; reversing the flow of the shield gas along the shield gas flow channel using a recombination region, the recombination region comprising at least one flow reversing member; and flowing the shield gas from the mixing region to an exit orifice of the shield, thereby producing a substantially uniform shield gas flow at the exit orifice.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: July 14, 2020
    Assignee: Hypertherm, Inc.
    Inventors: Yu Zhang, Zheng Duan, Richard R. Gray, Jr.
  • Patent number: 10662529
    Abstract: Techniques are disclosed for methods and apparatuses for reducing particle contamination formation in a high temperature processing chamber with a cooled gas feed block. The cooled gas feed has a body. The body has a main center portion having a top surface and a bottom surface. The body also has a flange extending outward from the bottom surface of the main center portion. A gas channel is disposed through the body. The gas channel has an inlet formed in the top surface of the main center portion and an outlet formed in the bottom surface of the main center portion. The body also has a center coolant channel. The center coolant channel has a first portion having an inlet formed in the top surface of the main center portion, and a second portion coupled to the first portion, the second portion having an outlet formed a sidewall of the flange.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: May 26, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Govinda Raj, Hanish Kumar, Lin Zhang, Stanley Wu
  • Patent number: 10625364
    Abstract: A resin insulation guide is used in a plasma torch including an electrode and a nozzle into which the electrode is inserted. The insulation guide is used to couple the electrode and the nozzle, and includes a first internal circumferential surface formed on an inside of the insulation guide, a second internal circumferential surface formed on the inside of the insulation guide, a communication channel, and a heat resistant coating formed on the first internal circumferential surface. The second internal circumferential surface has an inner diameter smaller than an inner diameter of the first internal circumferential surface. The communication channel communicates a space inside the first internal circumferential surface to an outside of the insulation guide, and extends in a direction inclined with respect to an axial direction of the insulation guide.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: April 21, 2020
    Assignee: KOMATSU INDUSTRIES CORPORATION
    Inventors: Yoshihiro Yamaguchi, Keita Kondo, Shigeo Morimoto, Katsuo Saio
  • Patent number: 10610944
    Abstract: A method for closing a plurality of holes penetrating from a first surface of a metal article through a second surface of the metal article is disclosed including applying the metal composition to the first surface along a bridging application path. The bridging application path passes over the plurality of holes between a first edge of each of the plurality of holes and a second edge of each of the plurality of holes. Applying the metal composition along the bridging application path closes the plurality of holes.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: April 7, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Dechao Lin
  • Patent number: 10603733
    Abstract: The present invention provides a method for producing a TIG-welded stainless steel tube without adding H2 to a shielding gas, while inhibiting generation of a weld defect. The method is a method for producing a TIG-welded stainless steel tube and includes the steps of bending a stainless steel strip in a width direction so as to butt both edges against each other and TIG-welding the both edges thus butted. A pulse waveform of a pulse frequency of 40 Hz to 300 Hz is used as a current waveform of a welding power source.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: March 31, 2020
    Assignee: Nippon Steel Nisshin Co., Ltd.
    Inventors: Takefumi Nakako, Tomokazu Nobutoki, Hiroshi Asada
  • Patent number: 10593539
    Abstract: A method and apparatus for removing native oxides from a substrate surface is provided. In one aspect, the apparatus comprises a support assembly. In one embodiment, the support assembly includes a shaft coupled to a disk-shaped body. The disk-shaped body includes an upper surface, a lower surface and a cylindrical outer surface. A flange extends radially outward from the cylindrical outer surface. A fluid channel is formed in the disk-shaped body and is coupled to the heat transfer fluid conduit of the shaft. A plurality of grooves formed in the upper surface are coupled by a hole to the vacuum conduit of the shaft. A gas conduit formed through the disk-shaped body couples the gas conduit of the shaft to the cylindrical outer surface of the disk-shaped body.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: March 17, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Chien-Teh Kao, Joel M. Huston, Mei Chang, Xiaoxiong (John) Yuan
  • Patent number: 10488043
    Abstract: An arc lighter fixing element includes a metal conduit and an arc lighter detachably installed to an end of the metal conduit. A plastic expansion member is latched into an end of the metal conduit. The arc lighter includes an arc generation head and a ceramic member installed on the top inner side of the arc generation head, and the bottom of the arc generation head is sheathed on the top of the metal conduit. A screw is passed through the center of the ceramic member and then secured with the plastic expansion member. The metal conduit may be bent conveniently to facilitate an ignition at different angles, and passed through an expansion structure to connect the arc lighter to the metal conduit, so as to facilitate the installation and disassembling.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: November 26, 2019
    Assignee: NINGBO YANGLING TECHNOLOGY CO., LTD
    Inventor: Yuyuan Bao
  • Patent number: 10477665
    Abstract: A microwave plasma torch providing two laminar flows is described. Two laminar flows are created using a set of at least three concentric, staggered dielectric tubes connected to a pressurized gas source. An inner laminar flow entrains injected particles entering the plasma. An outer laminar flow creates a sheath around the plasma and prevents it from attaching to the walls of the plasma torch. The entry point of the gas source is designed to ensure laminar flow for both the entrainment of the particles and for the shielding of the plasma plume. The uniform processing conditions results in uniform particles and a homogenous materials distribution. This enables a final product with improved thermal properties, improved corrosion and wear resistance and a higher tolerance to interface stresses. The microwave plasma torch can be used for producing nanomaterial powder and for spray coating materials onto various substrates.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: November 12, 2019
    Assignee: AMASTAN TECHNOLOGIES INC.
    Inventors: Kamal Hadidi, Makhlouf Redjdal
  • Patent number: 10335886
    Abstract: A vibrating welding torch attachment utilizes a battery-operated vibrating mechanism secured within a cylindrical housing. The attachment is configured to be detachably secured to the welding end of a traditional TIG-style welding torch. The battery pack within the attachment is rechargeable.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: July 2, 2019
    Inventor: William A. Woodward
  • Patent number: 10299363
    Abstract: In some aspects, nozzles for a plasma arc torch can include a first body having a first end, a second end, and a longitudinal axis; and a second body disposed about a portion of the first body to complement the first body, the second body defining a set of channels formed on an internal surface shaped to form a set of liquid flow passages between the first body and the second body, the second body at least partially defining at least one inlet and at least one outlet to the set of liquid flow passages.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 21, 2019
    Assignee: Hypertherm, Inc.
    Inventors: Brian J. Currier, John Peters, Stephen M. Dunbar
  • Patent number: 10035213
    Abstract: An arc welding apparatus disclosed in this specification includes: first electrode; second electrode; and a first gas supply unit which supplies a first shielding gas from the circumference of a base material-side portion of an arc region formed between the first electrode and a base material connected to the second electrode toward the center of the arc region, and controls the ratio of the pressure outside the arc region to the pressure at the center of the arc region to within the range of 70 to 5000.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: July 31, 2018
    Assignee: DENSO CORPORATION
    Inventors: Hideaki Shirai, Tsuyoshi Hayakawa
  • Patent number: 9868173
    Abstract: The invention relates to an arc welding method that implements an arc welding torch provided with an electrode, in which a central gas flow is supplied so as to contact the electrode and an annular gas flow is supplied on the periphery of said first gas flow. The central gas flow contains only argon and hydrogen (H2), the hydrogen content being 2 to 8 vol %. The sheath gas flow only contains argon and 1.8 to 3 vol % of carbon dioxide (CO2) or 0.9 to 1.5 vol % of oxygen (O2). The method is used for welding parts made of steel, in particular stainless steel or carbon steel, as well as steel coated with zinc or aluminium or any other material for preventing the corrosion of said steel.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: January 16, 2018
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Sébastien Gadrey, Jean-Pierre Planckaert
  • Patent number: 9862058
    Abstract: A method for laser welding one or more workpieces made of press-hardenable steel in a butt joint, wherein the workpiece or workpieces have a thickness of between 0.5 and 1.8 mm, and/or a jump in thickness of between 0.2 and 0.4 mm occurs at the butt joint, and wherein laser welding is carried out with the feed of filler wire into the molten bath, which is generated only by at least one laser beam. The filler wire contains at least one alloy element from the group comprising manganese, chromium, molybdenum, silicon and/or nickel, which alloy element promotes the formation of austenite in the molten bath generated by the laser beam, wherein said at least one alloy element is present in the filler wire in a mass percentage greater by at least 0.1 wt. % than in the steel of the workpiece or workpieces and the workpiece or workpieces used are non-coated or the coating thereof is partially removed.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: January 9, 2018
    Assignee: WISCO Tailored Blanks GmbH
    Inventors: Arndt Breuer, Christian Both
  • Patent number: 9789560
    Abstract: An arc welding torch having a variable electrode receiving aperture including a number of discrete wedges guided within a conical interior surface of a housing to enable the use of electrodes of various diameters without changing components of the torch. An adjusting collar engages the wedges and forms an adjustable opening for an electrode to be inserted therein. Rotation of a tailpiece of the torch handle adjusts the position of the wedges and secures the electrode in position.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: October 17, 2017
    Inventor: Jesse Rogers
  • Patent number: 9681529
    Abstract: A plasma torch module combining arc and microwave discharges is disclosed. One embodiment serves to enhance the size and enthalpy of the plasma torch and has a very large operational range of the airflow rate, from subsonic to supersonic flow speed. Increase of airflow in the torch operation can increase not only the size of the torch plasma and the cycle energy of the arc discharge but also the lifetime of the torch module and the torch can operate stably with very low airflow.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: June 13, 2017
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Spencer Kuo, Skip Williams, Daniel Bivolaru, Campbell Carter
  • Patent number: 9649714
    Abstract: A modular welding system which can switch between right-handed and left-handed wire feeders by use of the modular design and without having a duplicative dual feed system is disclosed. This aspect is applicable to robotic welding as well as boom-mounted welding operations.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 16, 2017
    Assignee: Lincoln Global, Inc.
    Inventors: Edward A. Enyedy, Michael A. Kindig, Jason Leach, Robert J. Thayer
  • Patent number: 9638083
    Abstract: A connector element for connecting a pump assembly for use in a selective catalytic reduction system to a reagent supply of reagent fluid, the connector element comprising: a reagent flow passage arranged to receive reagent fluid at a first end from the reagent supply and to supply the reagent fluid via a second end to a reagent inlet port for reagent fluid on the pump assembly; a coolant passage for cooling fluid, the coolant passage arranged to be in communication with a coolant port on the pump assembly.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: May 2, 2017
    Assignee: Delphi International Operations Luxembourg SARL.
    Inventors: Keith E. Wright, Frank Grumbrecht
  • Patent number: 9583291
    Abstract: In an electromagnetic contactor, an arc generated when a movable contact separates from fixed contacts can be easily extinguished. The movable contact is disposed so as to be connectable to and detachable from the pair of fixed contacts disposed to maintain a predetermined interval inside a contact housing case having insulating properties, and an arc extinguishing chamber is formed in a position in which the movable contact and the pair of fixed contacts contact. At least the inner wall surface side of the arc extinguishing chamber contacting an arc is formed of a high thermal conductivity material having thermal conductivity higher than that of a synthetic resin molded material.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: February 28, 2017
    Assignees: FUJI ELECTRIC CO., LTD., FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Osamu Kashimura, Masaru Isozaki, Kouetsu Takaya, Yuji Shiba
  • Patent number: 9396964
    Abstract: A plasma processing apparatus includes: a process chamber which accommodates a substrate to be processed; a lower electrode disposed in the process chamber; an upper electrode including an electrode plate that is detachable and discharges a process gas inside the form of shower into the process chamber; a gas supply unit including a central pipe and a edge pipe for supplying the process gas to the upper electrode; a first high frequency power source which applies high frequency power for plasma generation to the lower electrode; pressure indicators which detect pressures inside gas supply pipes; and a controller which measures a degree of consumption of the electrode plate based on the pressures detected by the pressure indicators and calculates a variation in process rate resulting due to the consumption of the electrode plate to adjust process conditions to resolve the variation in process rate.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: July 19, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Shin Matsuura
  • Patent number: 9288887
    Abstract: A plasma arc torch includes an electrode, a tip, a third element, and a secondary power circuit. The electrode is disposed within the plasma arc torch and adapted for electrical connection to a cathodic side of a power supply. The tip is positioned distally from the electrode and adapted for electrical connection to an anodic side of the power supply during piloting. A plasma chamber is formed between the electrode and the tip. The third element is disposed near a proximal end of the plasma chamber. The secondary power circuit is disposed proximate the plasma arc torch and in electrical communication with the third element. The secondary power circuit is configured to generate a high voltage pulse on the third element using input to secondary power circuit to initiate a first arc to start the plasma arc torch.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: March 15, 2016
    Assignee: Victor Equipment Company
    Inventors: Steve Norris, Roger Hewitt, Ken Isenor, Christopher J. Conway
  • Patent number: 9266184
    Abstract: The present disclosure provides a welding system capable of detecting a size of a welding material and automatically implementing appropriate arc starting parameters. The welding system includes a welder, a welding torch, and a sensor, in which the sensor is configured to detect the size of the welding material, directly or indirectly. The welder is automatically configured to produce an arc having the arc starting parameters determined from the size of the welding material detected by the sensor. The present disclosure decreases operational error by automatically changing arc starting parameters and/or welding parameters based upon a change in welding material size, rather than requiring an operator to manually change the arc starting parameters and/or welding parameters.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: February 23, 2016
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Bradley William Hemmert, Mark Steven Kadlec
  • Patent number: 9073141
    Abstract: The invention relates to an electrode for plasma torches for plasma cutting and to a use of the electrode for said plasma torch. The electrode in accordance with the invention for plasma cutting torches is formed from an electrode holder and from an emission insert which are connected to one another in a force-fitted and/or shape-matched manner. The emission insert has at least one section along its longitudinal axis which is arranged between two other sections or next to a section which has a reduced outer diameter in a rotationally symmetrical design of the emission insert or has a reduced cross-sectional surface in a non-rotationally symmetrical emission insert with respect to the other section(s).
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: July 7, 2015
    Assignee: Kjellberg-Stiftung
    Inventors: Frank Laurisch, Volker Krink
  • Publication number: 20150144600
    Abstract: A stainless steel weldment and pad combined welding method includes steps of: (a) respectively processing and pairing butts of to-be-welded portions of two weldments, wherein, during pairing, inner walls of the two weldments are aligned at the same plane; the butts of the two weldments are opposed to form a V-shaped groove with an angle ?; and between bottoms of the butts of the two weldments is kept a gap L of 2-4 mm; (b) providing a copper pad at the gap between the bottoms of the butts of the two weldments, wherein the copper pad closely attaches to the inner walls of the two weldments; (c) welding the V-shaped groove to form a root pass; and (d) removing the copper pad, and filling the root pass to be welded into a cover pass.
    Type: Application
    Filed: September 3, 2013
    Publication date: May 28, 2015
    Inventors: Jiewen Xia, Qingping Huang, Jialin Chen, Yuxian Su, Wenwei Li, Liyang Pang, Yan Wu
  • Patent number: 9040868
    Abstract: A retaining cap for a plasma torch is provided that includes fast securing threads. The retaining cap includes internal threads that couple to external threads of a torch body of the plasma torch. The internal and external threads may be multiple start threads having a thread angle greater than 60°. Plasma torches and plasma cutting systems are also provided.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: May 26, 2015
    Assignee: Illinois Tool Works Inc.
    Inventors: Nathan Gerald Leiteritz, George Arthur Crowe
  • Publication number: 20150129582
    Abstract: The invention described herein generally pertains to a system and method related to adjusting at least one of an arc current for a welding operation, an arc voltage for a welding operation, a wire feed speed for a welding operation, or a height of a torch that performs the welding operation. In particular, a parameter can be updated based upon, for instance, a user input, and the arc current, arc voltage, wire feed speed, or the height of the torch can be calibrated to perform the welding operation. Specifically, while a parameter is being adjusted or transitioned to the setting received via user input, the height of the torch and/or at least one of the arc current level, the arc voltage, the wire feed speed is maintained until the setting is achieved for the parameter. Once the parameter is at the setting, a second arc current level, a second arc voltage, a second wire feed speed, or second height for the torch is implemented to perform the welding operation.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 14, 2015
    Applicant: LINCOLN GLOBAL, INC.
    Inventor: STEPHEN R. COLE
  • Publication number: 20150122781
    Abstract: The welder interface described above may increase synergy with the welding system for the user. The welder interface receives input parameters of a desired weld from a user and advises a weld process and weld variables for producing the desired weld. The welder interface may be integral with a component of the welding system, or a separate component that may be coupled with the welding system. The welder interface may utilize data from a look-up table, neural network, welding procedure system, or database to advise the weld process and weld variables. The user may utilize the welder interface to simulate the weld process and the effect of the weld variables on a simulated weld. The user may modify the input parameters prior to producing a weld, and the user may modify the weld variables after reviewing the results of the produced weld for subsequent welding applications.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Inventor: Bruce Patrick Albrecht
  • Publication number: 20150093287
    Abstract: A a titanium alloy can be applied on a substrate by one of melting, welding, and depositing said titanium alloy on said substrate and solidifying said deposited or molten titanium alloy. Further, 0.01-0.4 weight % Boron can be added to said titanium alloy before or during said melting, welding or depositing said titanium alloy on said substrate.
    Type: Application
    Filed: May 16, 2012
    Publication date: April 2, 2015
    Applicant: GKN Aerospace Sweden AB
    Inventors: Robert Pederson, Frank Skystedt
  • 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
  • Publication number: 20150048057
    Abstract: According to the present invention, a non-consumable electrode type semi-automatic welding system which can conduct welding with high weld deposit and high speed is provided.
    Type: Application
    Filed: November 20, 2012
    Publication date: February 19, 2015
    Inventor: Katsunori Wada
  • Publication number: 20150041441
    Abstract: A system and method for metalworking using a vacuum to evacuate particulate matter, smoke, excess gas, and molten metal from a work area. The vacuum system has a vacuum head and a vacuum nozzle. A bracket establishes pivotal and slidable couplings between the welding head and the vacuum head. The vacuum nozzle has a support surface for being rested on a surface of a workpiece to support the vacuum head and the welding head. A flow of liquid can be applied to the work area defined by the vacuum nozzle and the welding head to provide cooling and to prevent deleterious overheating and particulate matter accumulation. A V-shaped canal, potentially with a depression in each face thereof, can communicate across a support surface of the vacuum nozzle.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 12, 2015
    Inventor: Charles Klangos
  • 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
  • Patent number: 8941026
    Abstract: A nozzle for a liquid cooled plasma torch includes a nozzle bore for the exit of a plasma gas beam at a nozzle tip, a first section, of which the outer surface is essentially cylindrical, and a second section connecting the nozzle tip, of which the second section the outer surface tapers essentially conically towards the nozzle tip, wherein at least one liquid supply groove is provided and extends over a part of the first section and over the second section in the outer surface of the nozzle towards the nozzle tip and at least one liquid return groove separate from the liquid supply groove is provided and extends over the second section.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: January 27, 2015
    Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbH
    Inventors: Volker Krink, Frank Laurisch, Timo Grundke
  • Publication number: 20150014284
    Abstract: A hybrid MIG-TIG or MAG-TIG welding device including a MIG or MAG welding torch utilizing a consumable wire oriented in a first direction, associated with a TIG welding torch utilizing a non-consumable electrode oriented in a second direction, said first and second directions being substantially coplanar and forming between themselves an angle (?) no less than 5° and no greater than 40° is provided.
    Type: Application
    Filed: December 5, 2012
    Publication date: January 15, 2015
    Inventors: Nicolas Burvelle, Jean-Pierre Planckaert
  • Patent number: 8933364
    Abstract: An electrode for a plasma arc torch includes a conductive body and a plurality of emissive inserts. The conductive body includes a proximal end portion, a distal end portion and a cavity extending from the proximal end portion to the distal end portion. The distal end portion defines a distal end face. The plurality of emissive inserts extend through the distal end face. The conductive body further defines a dimple extending into the distal end face and at least partially into the emissive inserts. The dimple is positioned concentrically about a centerline of the conductive body.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: January 13, 2015
    Assignee: Thermal Dynamics Corporation
    Inventors: Nakhleh Hussary, Christopher J. Conway
  • Publication number: 20150001184
    Abstract: The invention described herein generally pertains to a system and method related to influencing a direction of an arc within a welding operation. Within a hot wire welding operation, an arc is generated between an electrode and a workpiece and a welding wire is energized while being supplied to a puddle formed by the electrode in order to deposit the liquefied welding wire onto the workpiece. A welder system and/or method is provided that controls a direction of the arc based on at least one of a polarity of the welding wire (via a power supply that energizes the welding wire), a location of the welding wire in proximity to the arc, a synchronization and/or de-synchronization of a polarity of the welding wire with the electrode, an activation and/or a de-activation of energizing of the welding wire, or a combination thereof.
    Type: Application
    Filed: August 7, 2013
    Publication date: January 1, 2015
    Applicant: LINCOLN GLOBAL, INC.
    Inventors: STEPHEN R. COLE, STEVEN R. PETERS
  • Publication number: 20150001185
    Abstract: A hybrid welding method capable of improving arc stability and improving the welding speed and the welding efficiency is provided. A hybrid welding method includes generating a TIG arc on a leading side in a welding direction and generating a MIG arc on a trailing side in the welding direction to weld a base metal, in which a TIG current is set to be higher than a MIG current so as to continuously generate arcs in a TIG electrode and a MIG electrode, and an absolute value of a distance from an intersection between a central axis of the TIG electrode and a surface of the base metal to an intersection between a central axis of the MIG electrode and the surface of the base metal is 20 mm or less.
    Type: Application
    Filed: February 8, 2013
    Publication date: January 1, 2015
    Inventors: Shuhei Kanemaru, Tomoaki Sasaki, Toyoyuki Sato
  • Patent number: 8921731
    Abstract: A nozzle protection cap for an arc plasma torch comprises a front end section and a rear end section with a thread region on its inner surface for screwing to a torch body of an arc plasma torch. At least one groove crosses the thread region on the inner surface. A nozzle protection cap holder for the arc plasma torch comprises a section with a thread region on its outer surface for screwing to the nozzle protection cap. At least one groove crosses the thread region on its outer surface. An arc plasma torch comprises a torch body and a nozzle protection cap screwed thereto in a screw connection region. The torch body and/or the nozzle protection cap is/are designed so that at least one channel is formed between them, the channel crossing the screw connection region.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: December 30, 2014
    Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbH
    Inventors: Volker Krink, Frank Laurisch, Timo Grundke, Martin Kroschwald
  • Patent number: 8915740
    Abstract: A simulator facilitates virtual welding activity of pipe and open root weld joints. The simulator may include a logic processor based system operable to execute coded instructions for generating an interactive welding environment that emulates welding activity on a section of virtual pipe having at least one virtual weld joint. It also includes a display connected to the logic processor based system for visually depicting the interactive welding environment, wherein the display depicts the section of virtual pipe. A mock welding tool is provided for performing virtual welding activity on the at least one weld joint in real time where one or more sensors are adapted to track movement of the input device in real time for communicating data about the movement of the input device to the logic processor based system.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: December 23, 2014
    Assignee: Lincoln Global, Inc.
    Inventors: David Anthony Zboray, Matthew Alan Bennett, Matthew Wayne Wallace, Jeremiah Hennessey, Yvette Christine Dudac, Zachary Steven Lenker, Andrew Paul Lundell, Paul Dana, Eric A. Preisz, Lynn Briggs, Richard B. Droller, Eric C. Briggs
  • Publication number: 20140353289
    Abstract: The invention relates to a method for closing an aperture on a blade of a gas turbine, wherein the blade of the gas turbine comprises a tip end with a top surface and a bottom surface. The aperture is formed on the tip end of the blade, and the aperture includes a peripheral edge. The method includes closing the aperture with a weld formed by means of a Tungsten Inert Gas(TIG) welding process without an insert placed in the aperture. With the technical solution of the present invention, it provides a simple and cost effective solution to close the aperture on the tip end of the blade, dispensing with the conventionally utilized “letter-box”, insert, tip cap and the like. In view of this, process of closing the aperture may be simplified, and the cost incurred may be reduced. Further, premature failure of the blade is prevented.
    Type: Application
    Filed: May 19, 2014
    Publication date: December 4, 2014
    Inventors: Ivan LUKETIC, Marcel KOENIG, Laura BOGDANIC
  • Publication number: 20140353285
    Abstract: Electrodes for depositing hardfacing alloys containing boron, carbon, chromium, manganese, and silicon on the surface of metal components that are subjected to high thermal and mechanical stresses. The deposited hardfacing alloys have from about 2.5 to about 14.0 atomic weight percent boron and have a hardness on the Rockwell “C” scale of at least about 65 HRC in the first layer of the weld deposit.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: Lincoln Global, Inc.
    Inventors: Daniel J. Langham, Badri K. Narayanan
  • Patent number: 8890021
    Abstract: A portable plasma arc torch system can be used for processing materials. The system includes a replaceable or rechargeable power source and replaceable or rechargeable gas source. A controller communicates with at least one of the power source or the gas source. A plasma delivery device received via the controller current from the power source and gas from the gas source to generate a plasma arc at an output of the plasma delivery device. The plasma arc can be used to process materials such as metallic workpieces. The plasma arc torch can include a wearable portable assembly which includes the replaceable or rechargeable power and gas source. A plasma delivery device receives current from the power source in the assembly and gas from the gas source in the assembly to generate a plasma arc.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 18, 2014
    Assignee: Hypertherm, Inc.
    Inventors: E. Michael Shipulski, Nicholas A. Sanders
  • Patent number: 8889066
    Abstract: The invention relates to a solid-solution strengthened iron-nickel alloy with a high level of ductility and an expansion coefficient <5×10?6/K in the temperature range between room temperature and ?200° C. Said alloy consists of (in wt. %): between 0.005 and 0.05% of C; <0.02% of S; between 1 and 2% of Cr; between 35 and 38% of Ni; between 0.3 and 1.5% of Mn; <0.5% of Si; between 1.0 and 3.5% of ?Mo+W; between 0.2 and 1.0% of Ti; between 0.2 and 1.0% of Nb; <0.02% of P; and between 1.0 and 4.0% of Co; Fe constituting the remainder, in addition to production-related impurities.
    Type: Grant
    Filed: October 20, 2007
    Date of Patent: November 18, 2014
    Assignee: Outokumpu VDM GmbH
    Inventors: Bernd Hoberg, Bernd De Boer
  • Patent number: 8872056
    Abstract: A method for metalworking using an adjustable vacuum and support system for evacuating particulate matter, smoke, excess gas, and molten metal from a work area during welding and for providing adjustable support to a welding head. The vacuum system has a vacuum head and a vacuum nozzle. An adjustable mounting bracket has a first portion fixed to the vacuum head and a second portion securable to the welding head. The bracket arrangement establishes pivotal and slidable couplings between the welding head and the vacuum head. The vacuum nozzle has a support surface for being rested on a surface of a workpiece to support the vacuum head and the welding head. The support surface can be a base bevel surface at the tip of the nozzle, and an opposed suction bevel surface can have a nozzle aperture interposed therealong.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: October 28, 2014
    Inventor: Charles Klangos
  • Patent number: 8866041
    Abstract: A manufacturing method of laser diode unit of the present invention includes steps: placing a laser diode on top of a solder member formed on a mounting surface of a submount, applying a pressing load to the laser diode and pressing the laser diode against the solder member, next, melting the solder member by heating the solder member at a temperature higher than a melting point of the solder member while the pressing load is being applied, and thereafter, bonding the laser diode to the submount by cooling and solidifying the solder member, thereafter, removing the pressing load, and softening the solidified solder member by heating the solder member at a temperature lower than the melting point of the solder member after the pressing load has been removed, and thereafter cooling and re-solidifying the solder member.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: October 21, 2014
    Assignees: TDK Corporation, Rohm Co., Ltd, SAE Magnetics (H.K.) Ltd.
    Inventors: Koji Shimazawa, Osamu Shindo, Yoshihiro Tsuchiya, Yasuhiro Ito, Kenji Sakai
  • Patent number: 8866036
    Abstract: According to the present invention, an adapter kit is provided in which a welding torch having a single nozzle structure is switched to a welding torch having a double nozzle structure. In an adapter kit (20A) which is installed in a switchable manner in a welding torch (1A) having a single nozzle structure, the present invention includes an attachment (7A) which is mounted to the torch body (5) in a state where the torch nozzle (inner nozzle) (6A) is inserted into the attachment after the gasket is removed and in which a flow channel that supplies a second shielding gas is provided, and an outer nozzle (8A) that is mounted to the attachment (7A) surrounding the periphery of the torch nozzle (6A) and discharges a second shielding gas.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: October 21, 2014
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Katsunori Wada, Hiroki Oono
  • Patent number: 8859935
    Abstract: The present disclosure relates to methods of preparing a material for welding. The material is prepared by utilizing a laser to obliterate contaminants from the material surface.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: October 14, 2014
    Assignee: General Electric Company
    Inventor: Patrick Dunshee
  • Patent number: 8853589
    Abstract: A nozzle for a liquid-cooled plasma torch, comprising a nozzle bore for the exit of a plasma gas jet at a nozzle tip, a first portion, the outer surface of which is substantially cylindrical, and a second portion adjacent thereto towards the nozzle tip, the outer surface of which tapers substantially conically towards the nozzle tip, wherein at least one liquid supply groove and/or at least one liquid return groove is/are provided and extend over the second portion in the outer surface of the nozzle (4) towards the nozzle tip, and wherein the liquid supply groove or at least one of the liquid supply grooves and/or a liquid return groove or at least one of the liquid return grooves also extends/extend over part of the first portion, and there is in the first portion at least one groove which communicates with the liquid supply groove or at least one of the liquid supply grooves or with the liquid return groove or at least one of the liquid return grooves.
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: October 7, 2014
    Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbH
    Inventors: Volker Krink, Frank Laurisch, Timo Grundke
  • Publication number: 20140263192
    Abstract: A shielding cup used in connection with a welding torch having a torch head that defines gas outlets for supplying an inert gas to an electrode, the shielding cup including an attachment portion adapted to attach to the torch head; and a nozzle portion extending downward from the attachment portion, wherein the nozzle portion has a depth adapted to be received within the groove and defines an enclosed volume substantially surrounding the electrode, the nozzle portion being open at an outward end, wherein the nozzle portion is adapted to channel the inert gas from the torch head within the volume defined by the nozzle portion.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: LINCOLN GLOBAL, INC.
    Inventor: Victor Miller
  • Patent number: 8835794
    Abstract: In a process to connect components, especially metal components (1, 2), by at least one welding process, the components (1, 2) are at first brought together, or joined together, and are then simultaneously welded together at—at least—two differently located joining spots (3, 4) by a laser welding process and with the aid of robot control.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: September 16, 2014
    Assignee: Koki Technik Transmission Systems GmbH
    Inventor: Bernd Schulze