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8158905 |
Arc welding initiation system and method
A method and apparatus for controlling arc shielding gas during an arc welding operation is disclosed. The method may include the steps of actuating a first valve connected to an arc initiation...
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8129652 |
Welding stability system and method
A weld stability system for an arc welding apparatus and method of operation is disclosed. The weld stability system may comprise a shielding gas supply and a control assembly. The shielding gas...
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8106327 |
ARC welding torch including a wire guide open on one side and arranged to receive a welding wire from a laterally spaced apart location and method of using same
The present invention relates to a welding torch that includes an electrode (3) that has a longitudinal groove (9) formed therein which guides a welding wire (4) which is fed form a laterally...
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8092120 |
Method for assembling a rack portion of a self-raising oil rig
Method for assembling a rack portion (1) of a self-raising oil rig, which rack portion (1) is constituted by at least one rectangular plate (3) which comprises teeth (51) at the longitudinal...
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8000837 |
Programmable load forming system, components thereof, and methods of use
In one aspect, a programmable load forming system is programmed to perform the method of downloading a calculated path from the computer to the robot controller, moving one or more bundles along...
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7992760 |
Conduit purging device and method
A device for purging gas comprises a conduit assembly defining an interior volume. The conduit assembly comprises a first conduit portion having an open first end and an open second end and a...
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7985940 |
Welder with internal shielding gas regulator
A welder having an internal shielding gas regulator is disclosed. The welder has an internal gas cylinder and an internal regulator disposed in an enclosure. The welder may be equipped with an...
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7915560 |
TIG welding equipment and TIG welding methods
The TIG welding methods of the present invention include generating an electric arc between an electrode and an object to weld the object, wherein a first shielding gas including an inert gas flows...
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7863538 |
Metal-core gas metal arc welding of ferrous steels with noble gas shielding
The gas-metal arc welding of metal-core wile electrodes in the pure Ar shielding gas for carbon steel, low alloy steel, and ferritic stainless steel is described. Such shielding gas provides...
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7800011 |
MIG welded joint between aluminum and steel members and MIG welding process
A MIG welded joint between aluminum and steel members is obtained by overlapping the aluminum member and the steel member each other and performing MIG welding using a filler wire made of a 4000 or...
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7754993 |
Method for providing a dry environment for underwater repair of the reactor bottom head using a segmented caisson
Welding repairs are performed in an underwater environment adjacent the bottom head of the nuclear reactor vessel. To provide a dry welding environment, segments of a lower caisson are passed...
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7718914 |
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 argon is used to improve process stability and working...
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7718915 |
Shielding gases for MAG-welding of galvanized steel sheets and welding method using the same
A shielding gas for MAG welding wherein a carbon steel solid wire is used for lap fillet welding of a galvanized steel sheet; wherein the shielding gas is a mixed gas composition consisting of 8 to...
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7690549 |
Purge line for welding backup
A purge arrangement for welding backup of a seam between two surfaces selected for welding together along respective runs which define the seam includes a ventilated tubeform and an adhesive tape...
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7673786 |
Welding shield for coupling heaters
Systems for coupling end portions of two elongated heater portions and methods of using such systems to treat a subsurface formation are described herein. A system may include a holding system...
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7520538 |
Orbital tube welding purge adaptor
A purge gas introduction system for an orbital tube welding setup is provided, configured to inject high purity inert purge gas to the interior volume of a tube or tubular component. An o-ring is...
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7518082 |
Method for arc welding of ductile cast iron
A method for joining components made from ductile cast iron and made from ductile cast iron and steel, by arc welding with fusible electrodes under a gas blanket. The gas blanket comprises, in...
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7462799 |
Welding shielding gas flow rate-limiting apparatus
Welding shielding gas is often wasted because the welding operator sets flow rates excessively high. The flow rate limiting apparatus described can be added externally to a needle valve flow...
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7429712 |
Gas system for welding-type devices
A welding-type device and gas system for use therewith are disclosed. The gas system of the welding-type device includes a canister that is constructed to contain a shielding gas therein and is...
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7423238 |
Gas system for wire feeding devices
A wire feeder and gas system for use therewith is shown. The gas system of the wire feeder includes a canister that is constructed to contain a shielding gas therein and is connectable to the wire...
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7411147 |
Gas bottle for welding-type devices
A gas bottle for welding-type devices, a shielding gas system, and a method for providing shielding gas to a weld are disclosed. The gas bottle has a valve constructed to be connected to a...
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7390988 |
Polyspecialistic medical-surgical electrowelding method for electrowelding titanium and alloys thereof
The present invention relates to an electrowelding method for intraorally electrowelding titanium and alloys thereof, comprising the step of abutting the element to be electrowelded one against the...
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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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7355141 |
Welder with integrated regulator
A welder having an internal shielding gas regulator is disclosed. The welder has an internal gas cylinder and an internal regulator disposed in an enclosure. The welder may be equipped with an...
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7307234 |
Protective gas supply device for electric arc joining
A protective gas supply device for on-site supply of workplaces is provided, in which a liquid argon reservoir, a liquid oxygen reservoir or a liquid carbon dioxide reservoir, and a helium supply...
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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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7246736 |
Supplying shielding gas
A flexible articulate tubular device has a shank, a plurality of pivot rings, and a terminus with heat sensors and a fiber optic device. The flexible articulate tubular device is initially...
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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...
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7241971 |
Laser/arc hybrid welding process for ferritic steels
A method and an apparatus for a hybrid laser beam and electric arc welding process. A laser beam, an electric arc, a shielding gas and a consumable welding wire are used to create a weld on a steel...
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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...
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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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7220935 |
Welding torch and shield
A welding torch (10) for welding on a component has an electrode (12) within a nozzle (14) through which a flow of gas passes. A shield (20) defines an enclosure (22) around the nozzle (14). Means...
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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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7189941 |
Process for making heterogeneous joints under shielding gas
In joining heterogeneous materials that differ in their melting points, a shielding gas mixture with active gas content is utilized. In particular, the shielding gas mixture contains helium and...
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7161109 |
Gas metal arc welding of coated steels and shielding gas therefor
This invention relates to a method for gas metal arc welding of coated steels, and a shielding gas therefor, in which the method comprises: (a) forming an arc between a consumable wire electrode...
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7112358 |
Self-adhesive purge dam for retaining purge gas around a weld zone
A self-adhesive purge dam for retaining purge gas around a weld zone includes a base configured to substantially obstruct an air passage leading to the weld zone and an adhesive skirt extending...
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7109433 |
Method and apparatus for initiating welding arc using chemical spray
Methods and apparatus for initiating an arc (e.g., a welding arc) by placing liquid droplets containing ions in the gap between an electrode and a workpiece. This is done while a potential...
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7075033 |
Low cost titanium welding method
Method of welding titanium using gas metal arc welding procedure where the shielding for the weld included torch shielding gas only and no trailing or backup shielding. The technique used here is a...
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7071438 |
Gas composition for arc welding
The disclosed invention is a composition and process for employing a shielding gas in arc welding. The disclosed composition includes oxygen in an amount between about 0.6% and about 1.9%, helium...
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7067759 |
Metal working
A method of working metal in which molten metal particles are ejected from, for example, a welding electrode or from a metal workpiece being cut or drilled. The ejected molten metal particles are...
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7057137 |
Orbital welding internal pressure control
The present invention is generally comprised of a tube adaptor, a chamber, a chamber pressure sensor, a calibration pressure sensor, an iris valve, an iris valve drive means, and a control and data...
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7026569 |
Welding machine
The inventive system and method allows the control of shielding gas in an electric welding apparatus having automatic wire feed by controlling the flow rate of the shielding gas as a function of...
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7019248 |
Welding shielding gas flow-control device
These shielding gas flow-control devices avoid weld start quality problems often created in typical GMAW systems. They accomplished this while maintaining the common high pressure gas delivery...
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7015412 |
Welding shielding gas saver flow-control device
This device significantly reduces a major reason for shielding gas waste in MIG welding. When welding is stopped, excess gas is stored in the hose transporting shielding gas to the solenoid located...
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6998574 |
Welding torch with plasma assist
An electric arc welding torch having a central conductive contact tube for electrical contact between a power source and a welding wire moving through the contact tube toward a workpiece, a...
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6991748 |
Process for the production of a shielding gas mixture
In a process for the production of a shielding gas mixture argon is withdrawn from a liquid argon supply, vaporized and mixed with a gas premix. The gas premix contains helium and/or argon and a...
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6977358 |
Welder with integrated gas bottle
A welder having an integrated gas cylinder is disclosed. The welder has a power source constructed to condition and output an electrical signal suitable to welding and a gas cylinder disposed in an...
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6969818 |
Tandem welding shielding gases
A shielding gas for gas shielded metal-arc welding or brazing with multiple (in particular 2) wire electrodes, one common melting bath, and multiple power sources. Such shielding gases contain, for...
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6924460 |
Engine welder with shielding gas generation
A liquid and gas separator to generate a shielding gas from the exhaust gas of an internal combustion engine. The liquid and gas separator can be a separate portable component or a component that...
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6855905 |
Flexible welding torch having restraining member to avoid overextension and method of assembling same
A positionable welding torch for a welding system is featured. The torch comprises a torch head, a handle, and a flexible portion coupled to the torch head and the handle. The flexible portion is...
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