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8153927 |
High visibility plasma arc torch
An improved torch providing high visibility of the work zone to the operator, an increased viewing angle, and a reduced obstruction angle. The high visibility torch includes consumables adapted to...
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8134097 |
Multi-position head plasma torch
A plasma torch having a multi-position head is disclosed. The plasma torch includes a torch body and a torch head pivotably connected thereto. Such a construction provides a single plasma torch...
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8127977 |
Thermal stir welder
A welding apparatus is provided for forming a weld joint between first and second elements of a workpiece. The apparatus heats the first and second elements to form an interface of material in a...
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8115136 |
Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes
An electrode for a contact start plasma arc torch includes an elongated electrode body formed of an electrically conductive material. The electrode body is movable relative to the torch. A...
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8101882 |
Plasma torch electrode with improved insert configurations
An improved electrode for use in a plasma arc torch. The electrode includes an electrode body, a bore defined by and disposed in the electrode body, and an insert disposed in the bore. The insert...
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8097828 |
Dielectric devices for a plasma arc torch
Apparatus and methods for thermally processing a workpiece include directing a plasma arc to the workpiece and using a dielectric shield or dielectric coating to protect a forward portion (e.g., a...
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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...
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8089025 |
Gas-cooled plasma arc cutting torch
A method and apparatus for a gas-cooled plasma arc torch. Components of the torch can include an electrode, nozzle and a shield, each of which can be gas-cooled. The nozzle can be disposed relative...
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8035055 |
Electrode for a contact start plasma arc torch and contact start plasma arc torch employing such electrodes
An electrode for a contact start plasma arc torch includes an elongated electrode body formed of an electrically conductive material that defines a longitudinal axis and a distal end for housing an...
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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...
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7989727 |
High visibility plasma arc torch
An improved torch providing high visibility of the work zone to the operator, an increased viewing angle, and a reduced obstruction angle. The high visibility torch includes consumables adapted to...
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7977599 |
Erosion resistant torch
An erosion resistant torch for use in a solid free form fabrication system for manufacturing a component from successive layers of metal feedstock material. The erosion resistant torch includes a...
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7935909 |
Hybrid shield device for a plasma arc torch
Methods and devices for controlling the flow of gases through a plasma arc torch are provided. A flow of plasma gas is directed to a plasma chamber, a first flow of auxiliary gas is directed around...
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7928338 |
Plasma spraying device and method
A device and a method for plasma spraying are disclosed. The device comprises, a cathode, an anode, a plasma channel formed by the anode and intermediate electrodes, and one or more flowable...
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7829816 |
Plasma arc torch providing angular shield flow injection
Plasma arc torches described herein include a torch tip with an improved nozzle that provides angular shield flow injection. In particular, the nozzle provides angular/conical impingement of a...
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7820935 |
Burner
A burner design used for thermal treatment of a surface of materials is presented. The burner includes a tubular electrode, a nozzle, a removable rod-shaped electrode which are arranged to form a...
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7777151 |
Portable plasma sterilizer
A handheld air plasma spray is designed. Plasma is generated by a magnetized arc torch running at 60 Hz and is in non-equilibrium state; thus, the plasma effluent has relatively low temperature...
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7759599 |
Interchangeable plasma nozzle interface
The present invention provides a standard interface for providing mechanical location, mechanical orientation, electrical connections, and water chamber seals for the exchange of a variety of...
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7759600 |
Rupture resistant plasma tube
A system for producing plasma tubes that can withstand a wide variety of physical and environmental stressors within a plasma processing system is disclosed. Within such a plasma processing system,...
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7737383 |
Contoured shield orifice for a plasma arc torch
A component for use in a plasma arc torch is provided that includes a continuously contoured surface extending along the component that directs a flow of shield gas at a predetermined angle to...
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7671294 |
Plasma apparatus and system
A twin plasma apparatus including an anode plasma head and a cathode plasma head. Each of the plasma heads includes an electrode and a plasma flow channel and a primary gas inlet between at least a...
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7659488 |
Composite electrode for a plasma arc torch
A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for...
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7605340 |
Apparatus for cooling plasma arc torch nozzles
The invention relates to a nozzle for a plasma arc torch and methods of manufacturing the nozzle. The nozzle includes a nozzle body and a nozzle liner. The nozzle body has a cylindrical portion and...
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7598473 |
Generating discrete gas jets in plasma arc torch applications
The invention is generally directed to a nozzle for a plasma torch, the nozzle having a rear portion that defines at least a portion of a plasma chamber and a front portion that includes a first...
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7576296 |
Thermal synthesis apparatus
An apparatus for thermal conversion of one or more reactants to desired end products includes an insulated reactor chamber having a high temperature heater such as a plasma torch at its inlet end...
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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...
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7483471 |
Cooling device for use in an electric arc furnace
A cooling device for use in an electric arc furnace is provided. The cooling device provides a novel and effective method for cooling burners, lances, enclosures, and other devices used in high...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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,...
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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,...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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