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8129649 |
Magnetic arc welding method for workpieces with open cross-sections
A method for Magnetic Arc welding for metallic materials wherein at least one of the workpieces to be welded has an open cross-section. The method comprises bracing the two workpieces and moving...
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8091201 |
Stamped tubular member and method and apparatus for making same
A unique tubular work piece is disclosed along with a novel method and apparatus for manufacturing tubular work pieces from sheet metal stock lighter and stronger structures with less waste and...
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8061582 |
Pipe-joining method and apparatus for producing underwater pipelines, and underwater-pipeline-laying vessel comprising such an apparatus
A method of joining pipes (3) to produce underwater pipelines (2), wherein the facing free ends (15) of two adjacent pipes (3), aligned along an axis (A), are welded to define a cutback (18); a...
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8015707 |
Method of fabricating a combustion chamber
A welded assembly of combustion chamber elements is disclosed. Two subassemblies of the combustion chamber are fabricated by butt-welding, and a first subassembly has an intermediate connection...
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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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7915561 |
Apparatus for coating a pipe surface
A wear resistant coating is applied on an elbow or S-bend by weld beads applied along a pipe. A rectangular support rod is attached inside the pipe by connectors so that wheels of the carriage are...
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7909226 |
Device for producing a longitudinally welded hollow profile using a holding-down device
A method for producing a longitudinally welded hollow profile from a sheet metal blank having defined longitudinal edges, in which the sheet metal blank is initially preformed into an open seam...
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7897267 |
Apparatus and methods of improving riser weld fatigue
A tubular assembly comprising a first iron based tubular having a first non-cladded inner surface; and a second iron based tubular having a second non-cladded inner surface, wherein the first...
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7889827 |
Method and apparatus for removing tack welds on reactor vessel components in a nuclear reactor
An electrical discharge machining (EDM) tool and method for removing tack welds on a component in a reactor pressure vessel are disclosed. The tool may include a motor, a housing which engages the...
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7875823 |
Process for assembling a high speed hollow rotor shaft
A hollow rotor shaft for use in a small twin spool gas turbine engine in which the hollow rotor shaft is assembled by welding two hollow shaft sections together to form the single shaft assembly....
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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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7741580 |
Method of welding a pipe/connector joint
A method for welding a pipe section and a connector, where each of the pipe and connector have inner and outer beveled surfaces forming only a single angular alignment land when mated. The pipe and...
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7735709 |
Apparatus and method for joining pipe ends together
A method and apparatus for joining pipe sections (102, 104) together to form an underwater pipeline. The pipe sections (102, 104) are in an abutting position and have a generally vertical...
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7683288 |
System and method of computing the operating parameters of a forge welding machine
A system and method for computing the parameters of a forge welding machine for the forge welding of one or more materials is provided. A computer program executes a self-tuning routine to compute...
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7560662 |
Equipment and process for applying an external structural weld to piping and similarly shaped pressure boundary components
An apparatus and/or process for applying a weld overlay to a nozzle or piping spool of complex configuration is disclosed. In an exemplary embodiment, the welding apparatus comprises a mounting...
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7547859 |
Method for repairing heat recovery steam generator tube-to-header damage
A method for repairing a heat recovery steam generator (HSRG) header to tube attachment damage, includes providing an access window in the header opposite the damaged header to tube attachment...
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7531771 |
Heat treatment apparatus of light emission type
A reflector is so provided as to entirely cover a plurality of flash lamps arranged in parallel with one another. The reflector reflects flash light emitted from the flash lamps. A plurality of...
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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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7520043 |
Method of securing a tube in a bore through a spherical wall, and a device for depositing welding material in a facing
An annular facing is machined in an inside surface of the spherical wall around the periphery of a zone where the wall has a bore for securing the tube passing therethrough. A first welding...
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7507933 |
Method for fabricating a rotor shaft
A method for fabricating a rotor shaft using a welding process. The method includes positioning a first rotor shaft section adjacent a second rotor shaft section, and using a submerged arc welding...
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7495193 |
Pipe seam tack welding methods and apparatus using modified series arc welding
Welders and methods are presented for short-circuit arc welding a workpiece using a modified series arc welding configuration with two electrodes via a sequence of welding cycles, in which each...
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7432466 |
Method of electrical resistance spot welding
A method of resistance welding comprising the steps of contacting a metal sheet with an electrode having an initial contact surface area at a force to provide a pressure to the metal sheet applying...
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7414222 |
Method and apparatus for pulse and short circuit arc welding
A method and apparatus for multi process welding includes providing a controlled short circuit output and a pulse output in response to a user selection across a workpiece output stud and a torch...
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7386927 |
Apparatus to roll, cut, weld, and form tank car outer jackets
A system and method of fabricating tank car outer jackets are provided that include supporting a plurality of coils of sheet metal on a plurality of coil supports such that the central longitudinal...
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7350386 |
Method and apparatus for making tubes
In a method of making a tube, a sheet metal blank is placed in a U-shaped cavity of a lower mold of a shaping tool, and pressed into the cavity by a ram to shape the blank into a U-shaped...
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7348523 |
Method of induction weld forming with shear displacement step
A shear-assisted solid state welding method for joining of metal parts, involves a first step of heating opposing surfaces in a non-passivating environment to a temperature in the hot working...
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7285747 |
Flux assisted gas tungsten arc welding utilizing consumable inserts for ultra low profile welding applications
A speedy method of welding in a tight space using a single pass is provided using a technique which involves the use of a particularly shaped, flux treated consumable insert to provide deep weld...
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7253372 |
Method for welding heat exchanger tube to tubesheet
One method for welding includes obtaining a heat-exchanger tube having an outward fold. The tube is inserted at least partially through the orifice of a tubesheet with the fold contacting one of...
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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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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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7199325 |
Method for interconnecting tubulars by forge welding
A method for interconnecting tubulars by forge welding involves arranging the tubular ends that are to be interconnected at a distance, up to a few millimeters from each other in a shield gas...
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7170032 |
Process for welding
A welding process for non-stainless steel workpieces using GTAW equipment and hydrogen containing shield gas on a first root pass is improved by using a shield gas delivery system comprising hoses...
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7122761 |
Friction processing weld preparation
A weld preparation process that translates a consumable or nonconsumable tool over an area that is subsequently to be welded to impart friction heating to the surface. Rotary or linearly oscillated...
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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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7028882 |
Process and apparatus for boiler tube panel welding and straightening
An apparatus and process for depositing an overlay weld on a boiler tube panel comprising a plurality of tubes with adjacent tubes joined together with membranes therebetween, and then...
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7022932 |
Outer shell unit and method of manufacturing the unit
A manufacturing method for an outer shell unit (10) provided with a cylindrical outer shell (3) housing a damping force generating mechanism and a knuckle bracket (7) mounted on the outer shell (3)...
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6998560 |
Method for metallurgically joining a tube to a member
A method for metallurgically joining a tube to a member. A tube having a flange is obtained, and a member is obtained. A welding/brazing electrode wheel is obtained having an axis of rotation and...
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6953147 |
Method for joining a tube to a member
A method for joining a tube to a member. A tube having a flange is obtained, and a member is obtained. The tube and the member are positioned with the flange contacting the member either directly...
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6948648 |
Misting manifold apparatus and method of manufacture
A method and apparatus for a constructing misting manifold is disclosed that uses a standardized intermediate member joined to tubing. The method allows mass production, particularly with use of...
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6941826 |
Method and device for detecting abrasions of electrodes in stationary welding gun
A method for detecting abrasion of both a moving side electrode (2) and a fixing side electrode (3) of a stationary type welding gun in which the moving side electrode (2) and the fixing side...
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6931729 |
Method for manufacturing a filler neck
In response to the recent various requests, the present invention provides a method for manufacturing filler neck to facilitate jointing a mouthpiece and a feeding pipe which were manufactured...
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6924452 |
Welding device and method
A welding device and a welding method for butt welding two pipes to be welded are provided. The welding device comprises a welding device body, having an electrode unit with a welding electrode and...
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6911632 |
Method for controlling the position of a foil strip edges
A method for controlling the edges (7, 7′) of a foil strip guided in a shaping funnel of a device producing tubular bodies from the foil strip by an overlapping weld seam using a guide wedge, the s...
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6858813 |
Weld overlay system
A process for applying a weld overlay to a tube with a single pass of a weld head. An inverter-type alternating current pulsed power source, composed of a primary inverter and a secondary inverter,...
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6852945 |
Laser welding boiler tube wall panels
A method of welding together the parts of a boiler tube wall panel includes placing at least two parts of the panel to be welded together along a weld line and adjacent each other, and forming a...
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6831838 |
Circuit board assembly for welding power supply
A system and method for attaching multiple electrical components to a heat sink is disclosed. The apparatus includes a pair of spacers for each component. The spacers define a uniform distance...
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6822205 |
Method for producing multilayer metal composite tubes
A process for the production of multi-layer metal composite tubes (10), wherein a metal strip is shaped to form a tube (16) and butt-welded along its two longitudinal edges. A plastic inner layer...
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6806442 |
Method and apparatus for splicing tubular heater sections
An apparatus for splicing a heatable section of a tubular heater to a cold section, the heatable section includes an outer sheath, which has a heating element therein. The cold section includes an...
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6737601 |
Method and device for welding together two bodies
A method and apparatus for welding together two pipes or plates. The bodies to be welded are placed mutually in line against each other while leaving clear a weld groove. The weld groove is filled...
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6717092 |
Method of manufacturing treatment instrument of endoscope
A treatment instrument includes a first coil and a second coil that is different from said first coil. The first and second coils are connected to each other. An operation wire is inserted in the...
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