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| Number | Title | Issue Date |
| 8097826 | Penetration enhancing flux formulation for tungsten inert gas (TIG) welding of austenitic stainless steel and its application A Penetration Enhancing Activating Flux (PEAF) in paste form for autogenous TIG welding of austenitic stainless steels adapted for ready application with a brush on top weld surface prior to conducting autogenous TIG welding to favor single weld pass, of austenitic ... | 01/17/2012 |
| 8026456 | TIG welding system and method The invention provides a welding arrangement designed to respond to the need of an improved welding system that aids in supplying filler material to a weld location. Provided is a welding system including a welding gun and a welding wire feed directly coupled to the... | 09/27/2011 |
| 7485826 | Wire-guide nozzle assembly for a robotic TIG welding torch The invention relates to a wire-guide/nozzle assembly (11, 13) for an electric arc welding torch, comprising at least one nozzle (11) for delivering gas and at least one wire-guide system (13) for guiding at least one consumable wire, characteri... | 02/03/2009 |
| 7453050 | Flexible welding implement and method of manufacturing same A welding implement includes a torch having a flexible torch head. The torch head is operable to conduct electricity to a welding electrode disposed within the torch head. The welding implement may include a gas supply tube and a coiled wire spring operable to flexi... | 11/18/2008 |
| 7435925 | Plasma arc torch A plasma torch is provided having a movable member carrying an electrode and movable along a tubular member bore having a nozzle at one end. A piston member engaged with the movable member moves the electrode between inoperable and operable positions within the bore... | 10/14/2008 |
| 7429715 | Modular plasma arc torch A modular plasma arc torch is provided that comprises a torch head and a torch lead, and a quick disconnect that is operatively engaged between the torch head and the torch lead. Accordingly, the torch head and torch lead may be quickly assembled and disassembled th... | 09/30/2008 |
| 7411149 | inverter powered plasma cutting system with fixed gas flow control A lightweight and compact plasma cutting system includes a power source having an inverter and a non-adjustable regulator enclosed within the power source. The inverter is configured to generate a power signal suitable for a plasma arc process and the non-adjustable... | 08/12/2008 |
| 7399941 | Welding tool A welding tool for TIG arc welding, plasma welding or laser welding, including a welding head carrying a refractory electrode and surrounded by a skirt. The skirt is releasably fastened on the welding head and has a front portion which extends forwards and is shaped... | 07/15/2008 |
| 7394041 | Apparatus for treating a waste gas using plasma torch Disclosed is a waste gas treatment apparatus having a waste gas inlet for flowing a waste gas into a main combustion chamber provided in empty space inside a body, and a plasma torch configured to propagate flames against the waste gas flowing through the waste gas ... | 07/01/2008 |
| 7388170 | Preparing a protective gas mixture for arc joining This invention provides a method for on-site production of a protective gas mixture for arc joining, in particular for arc welding. Gaseous argon is removed from a liquid argon supply and helium is added to the argon, and a doping gas premix which is prepared separa... | 06/17/2008 |
| 7359177 | Dual bias frequency plasma reactor with feedback control of E.S.C. voltage using wafer voltage measurement at the bias supply output A plasma reactor has a dual frequency plasma RF bias power supply furnishing RF bias power comprising first and second frequency components, f(1), f(2), respectively, and an RF power path having an input end coupled to the plasma RF bias power supply a... | 04/15/2008 |
| 7342197 | Plasma torch with corrosive protected collimator To protect the collimator of a transferred plasma arc torch from premature failure due to corrosion, an anti-corrosive covering is applied on the exposed face surface and a portion of the inner exit bore of the collimator. The specification describes several methods... | 03/11/2008 |
| 7336008 | Weld joining portion of a vehicle alternator The invention concerns with connection of a lead from an electrical component of an alternator for a vehicle, and provides a terminal shape suitable for TIG welding (arc welding using a gas shielded non-consumable electrode) without being affected by dimensional acc... | 02/26/2008 |
| 7335850 | Plasma jet electrode device and system thereof A plasma jet electrode device includes an orientation base, a ceramic pipe, a round plate having a plurality of tilted through holes thereon and a high-voltage metal electrode. A dielectric discharging plasma area is formed between the high-voltage metal electrode a... | 02/26/2008 |
| 7329827 | Wire-guide nozzle assembly for a robotic TIG welding torch The invention relates to a wire-guide/nozzle assembly (11, 13) for an electric arc welding torch, comprising at least one nozzle (11) for delivering gas and at least one wire-guide system (13) for guiding at least one consumable wire, characteri... | 02/12/2008 |
| 7329826 | Nozzle assembly for welding torch A nozzle assembly operable to secure a porous disc within a welding torch. The nozzle assembly comprises a front nozzle member and a rear nozzle member. The front nozzle member is securable to the rear nozzle member. The porous disc is captured between the front noz... | 02/12/2008 |
| 7329833 | System for improved high-frequency arc starting of a welding process A welding gun is disclosed that includes an electrode configured to effectuate a welding-type process and a non-conductive nozzle configured to at least partially surround the electrode. The welding gun also includes a conductive casing at least partially surroundin... | 02/12/2008 |
| 7326874 | Vented shield system for a plasma arc torch Vented shield systems for plasma arc torches are provided that comprise a shield cup body defining a distal end portion, a vented retainer secured to the distal end portion of the shield cup body, and a shield cap secured to the vented retainer. The vented retainer ... | 02/05/2008 |
| 7321106 | TIG welding torch An improved TIG welding torch with a gas nozzle surrounding the fixed electrode and using a high frequency generator remote from the torch to selectively create a short burst of high frequency, high voltage to start or sustain an arc wherein a conductive layer is af... | 01/22/2008 |
| 7300277 | Torch operable to position a flow control lever at a plurality of locations on the torch A torch operable to pivotally secure a lever on opposite sides of the torch. The torch may comprise a torch butt, a valve assembly, and a lever. The valve assembly may be operable to control a flow of a fluid through the torch butt. The lever may be selectively secu... | 11/27/2007 |
| 7297900 | Bypass weld torch Methods of arc welding and an arc welding assembly comprise a power source configured to provide a welding current, and a single weld housing. The weld housing comprises a welding torch, which comprises a consumable electrode wire. The welding torch defining an elon... | 11/20/2007 |
| 7297893 | Plasma arc collimator design and construction An improved collimator for a plasma arc torch consists of an annular holder member and an insert member. The insert member includes a tubular stem portion ending in an integrally formed, radially extending face plate. When the stem portion is fitted into the central... | 11/20/2007 |
| 7291807 | TIG welding equipment and TIG welding method TIG welding equipment includes a first articulate robot having a first arm, a TIG torch holding member for holding a TIG torch at a specified position so that the TIG torch can perform a weaving operation, and a filler wire guide moving member formed so as to surrou... | 11/06/2007 |
| 7281478 | Assembled cathode and plasma igniter with such cathode This invention relates to a plasma igniter for directly igniting the pulverized coal burner. Said plasma igniter consists of a plasma generator which includes a composite anode, an combined type cathode, an electromagnetic coil and a transmitting coil; a pulverized ... | 10/16/2007 |
| 7268319 | Method of metallurgically bonding articles and article therefor An article suitable for metallurgical bonding having a first part having a lower surface, and a second part having an upper surface is disclosed. The lower surface of the first part is disposed at the upper surface of the second part to provide for a faying surface ... | 09/11/2007 |
| 7259348 | Welding torch having integral gas lens and collet and method of operating same A welding torch member for securing an electrode to a welding torch is provided. The welding torch member may be adapted to capture the electrode and to enable gas to flow through the welding torch member. The welding torch member may be adapted with a first portion... | 08/21/2007 |
| 7253373 | Air-cooled arc welding implement A welding implement, such as a TIG welding torch. The welding implement comprises a torch head and a thermal storage member. The torch head is operable to conduct electricity to a welding electrode disposed therein. The thermal storage member is adapted to store hea... | 08/07/2007 |
| 7247218 | Plasma density, energy and etch rate measurements at bias power input and real time feedback control of plasma source and bias power A plasma reactor process measurement instrument includes an input phase processor receiving wafer bias voltage, current and power and computing an input impedance, an input current and an input voltage to the transmission line; a transmission line processor for comp... | 07/24/2007 |
| 7244904 | Metal-protective gas-joint with changeable polarity A method of gas-shielded metal arc joining using a consumable electrode having an alternating polarity (GMA-AC). A shielding gas containing helium is used to improve process stability and working speed. ... | 07/17/2007 |
| 7243813 | Domed food container A food container preferably for heated food, has a lid member and a base member. The base member has complimentary embossed portions in the bottom of the base member to engage a complimentary indented portion in the top surface of the lid member. The retaining mecha... | 07/17/2007 |
| 7241970 | Ternary gas mixture which can be used in the braze welding of galvanized parts A method of brazing galvanized metal parts such as those used for motor vehicle elements or container components. The parts are joined together to create a brazed joint by using at least one electric arc, a metal filler wire, and a gas shield. The gas shield contain... | 07/10/2007 |
| 7241961 | TIG welding method A TIG welding method of welding a first part with a first wall and an end edge to a second part with a second wall and an edge along a junction surface between said edges and along which the first wall forms a salient angle with the second wall. The TIG welding elec... | 07/10/2007 |
| 7241973 | Welding accessory arrangement A welding accessory system for a welder that includes a welder having a welder housing and at least one welding accessory support connected to the welder housing to support at least one welding accessory of a welder. The one or more welding accessory supports includ... | 07/10/2007 |
| 7235758 | MIG-plasma welding A welding system comprises a combined torch that includes a consumable electrode and a non-consumable electrode positioned so that their respective axes form an acute angle and so that arcs initiated from the electrodes intersect a workpiece plane to define an impin... | 06/26/2007 |
| 7220937 | Plasma reactor with overhead RF source power electrode with low loss, low arcing tendency and low contamination A gas distribution ceiling electrode for use as a capacitive source power applicator and gas distribution showerhead in a plasma reactor includes a metal base and a process-compatible protective layer on the interior surface of he electrode having a dopant impurity ... | 05/22/2007 |
| 7214899 | Process for the continuous production of longitudinally welded metal tubes A process for the continuous production of longitudinally welded metal tubes where a metal strip (1) is drawn from a strip supply and gradually shaped into a slit tube in a shaping station (2). The slit tube is welded in a welding system (4) alo... | 05/08/2007 |
| 7211766 | Power cable for air cooled welding torches A power cable for use with welding apparatus for conveying power and cooling fluid from a welding machine to a welding torch. The cable includes an outer flexible conduit disposed about a flexible electrical conductor, a pair of end fittings operatively connected to... | 05/01/2007 |
| 7211765 | Shielding gas and arc-welding method The invention relates to a shielding gas for use in the arc welding of metallic work pieces. The invention further relates to a process for the arc welding of metallic work pieces using consumable electrodes, whereby a shielding gas stream is supplied to the work pi... | 05/01/2007 |
| 7208695 | Welding shield gas and welding method A welding shield gas comprising an inert gas and nitrogen gas, where the concentration of the nitrogen gas is 1 to 95 vol %; or comprising an inert gas and a helium gas, where the concentration of the helium gas is 35 to 95 vol %; or comprising an inert gas, nitroge... | 04/24/2007 |
| 7205500 | Non-consumable electrode welding torch and welding head with the torch An ultra-flat non-consumable electrode welding torch which allows performing a welding operation through a narrow gap between adjacent piping such as welding piping of a boiler panel, to be mounted on a compact automatic welding head, and a welding head provided wit... | 04/17/2007 |
