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| Number | Title | Issue Date |
| 8378251 | Two-electrode arc welding device and two-electrode arc welding method A two-electrode arc welding device and two-electrode arc welding method are provided for performing welding with improved penetration performance using two non-consumable electrodes. In a two-electrode arc welding device, a power-supply unit outputs a straight-polar... | 02/19/2013 |
| 8350181 | Gas distribution ring assembly for plasma spray system A gas distribution ring assembly for a plasma spray system includes a gas distribution ring including a plurality of openings allowing a gas to pass to an inner diameter thereof. The assembly also includes a separate positioning ring axially aligned with the gas dis... | 01/08/2013 |
| 8278587 | Systems and methods to modify gas metal arc welding and its variants A welding system and method includes a main torch including a main electrode configured to form a first arc with a base metal; a first bypass torch including a first bypass electrode configured to form a second arc with the main electrode; and a second bypass torch ... | 10/02/2012 |
| 7893383 | Bonding apparatus and method for cleaning tip of a bonding tool A wire bonding apparatus for manufacturing, for instance, semiconductor devices, including a cleaning case in which a microplasma generating section comprised of a plasma torch, which has a plasma nozzle 38 at the end, and capacitive coupling electrodes compo... | 02/22/2011 |
| 7353982 | Diffusion bonding for metallic membrane joining with metallic module This invention relates to a method of bonding a metallic membrane with metallic part involving pressing a smooth surface of the metallic membrane against the smooth surface of the metallic part, and heating the metallic membrane and metallic part to a temperature ab... | 04/08/2008 |
| 7326873 | Apparatus and methods for repairing tenons on turbine buckets Bucket tip tenons requiring refurbishment are removed from the bucket tips by grinding. Groups of buckets are clamped on a rotatable table in positions adjacent an induction heating coil and a robotic welding arm, respectively. While one group is preheated, the othe... | 02/05/2008 |
| 7259350 | Turbine component crack repair using cathodic arc and/or low pressure plasma spraying and HIP A method for repairing cracks in a metal part comprising the steps of providing a metal part having a crack, cleaning the crack to remove an oxide layer, depositing a repair alloy via at least one of cathodic arc deposition and low pressure plasma spraying to cover ... | 08/21/2007 |
| 7256366 | Plasma arc torch, and methods of assembling and disassembling a plasma arc torch A plasma arc torch and methods for assembling and disassembling a plasma arc torch wherein a plurality of front end parts of the torch form a unit that is removable from the torch in a single operation to gain access to the electrode. The unit can then be reinstalle... | 08/14/2007 |
| 7253377 | System and method of joining overlapping workpieces An improved fusion welding system having a perforating device and a heating combination is adapted for welding in tandem a set of adjacent overlapping workpieces. The system preferably includes a first laser that perforates the workpieces to produce an opening space... | 08/07/2007 |
| 7247811 | Plasma welding method for a golf club head A plasma welding method for a golf club head includes the steps of: preparing a club head body and a striking plate, and mounting the striking plate to the club head body; moving a plasma nozzle to aim to a connection line formed between the club head body and the s... | 07/24/2007 |
| 7240717 | Multiple ignition source exothermic reaction mold device A multiple ignition source exothermic reaction mold device. The mold device includes a crucible in a block with an open top for receiving exothermic reaction powder. A lid covering the open top has an opening therethrough. A receptacle in the lid is in communication... | 07/10/2007 |
| 7235757 | Device for tightly fastening at least two members A device for clamping at least two components for use in friction stir welding supports the components and holds the components in place using a plurality of channels placed under vacuum for clamping of the components during friction stir welding. Both sides of a we... | 06/26/2007 |
| 7231713 | Method of reconditioning a turbine blade A method of reconditioning a rotating blade (1) with a shroud (8) following the operation in a gas turbine, includes the application of a barrier (14) placed on the edge of the shroud (8) facing the edge of a shroud (8) of an adjac... | 06/19/2007 |
| 7230203 | Protective cap for a contact pipe in a welding torch in addition to a welding torch equipped with said cap The invention relates to a protective cap for at least one contact pipe of a welding torch, the pipe or pipes having a respective bore for guiding and contacting a respective welding rod that is fed through the pipe or pipes. The cap comprises a housing consisting o... | 06/12/2007 |
| 7201823 | High throughput plasma treatment system A method for the plasma treatment of parts. The method includes sending loading signals from an electronic control to a transfer mechanism and loading the parts from a position outside of the treatment chamber to a plurality of treatment positions within the treatme... | 04/10/2007 |
| 7193174 | Method and apparatus for alignment of components of a plasma arc torch A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated... | 03/20/2007 |
| 7186944 | Method and apparatus for autodetection of plasma torch consumables A method and apparatus for automatically determining a consumable type when a consumable is disposed within an electrode holder of a welding-type system is disclosed. The invention includes a detector assembly that measures a physical characteristic of a connected c... | 03/06/2007 |
| 7164095 | Microwave plasma nozzle with enhanced plume stability and heating efficiency Systems and methods for generating relatively cool microwave plasma. The present invention provides a microwave plasma nozzle that includes a gas flow tube through which a gas flows, and a rod-shaped conductor that is disposed in the gas flow tube and has a tapered ... | 01/16/2007 |
| 7138600 | Automatic pulse plasma welding method and apparatus for forming lap joint between membrane sheets Disclosed herein is an automatic pulse plasma welding method and apparatus for forming a lap joint between membrane sheets, which applies plasma welding to a lap joint between membrane sheets to improve working efficiency and productivity, and which provides optimal... | 11/21/2006 |
| 7091442 | Welding apparatus and method for welding overlapping coated sheets A welding apparatus spot welds an upper sheet and a lower sheet together. A substantially semi-circular hole or notch is formed at an edge of the upper sheet at the desired location of spot welding. When the semi-circular hole or notch is formed, the process does no... | 08/15/2006 |
| 7075030 | Shielded beam delivery apparatus and method An apparatus includes a plasma generator aligned with a beam generator for producing a plasma to shield an energized beam. An electrode is coaxially aligned with the plasma generator and followed in turn by a vortex generator coaxially aligned with the electrode. A ... | 07/11/2006 |
| 7053329 | System and method for securing a welding electrode to a welding torch A system and method for securing a welding electrode to a welding torch. The system includes a collet body having a first portion that compresses an end of a collet against a welding electrode as the collet is urged against the first portion. The collet body also in... | 05/30/2006 |
| 7049541 | Cutting guide for plasma torch A guide that is used in conjunction with a plasma cutting torch includes a main circular ring having a small circular ring mounted on the outer periphery thereof. The small ring includes a bearing assembly and accommodates the plasma cutting torch. A guide bolt is m... | 05/23/2006 |
| 7041935 | Apparatus and methods for connecting a plasma arc torch lead to a power supply A torch lead extension is provided that comprises a conduit having a distal end and a proximal end. The torch lead extension further comprises a distal connector member disposed at the distal end of the conduit and a proximal connector member disposed at the proxima... | 05/09/2006 |
| 7030337 | Hand-held laser welding wand having removable filler media delivery extension tips A hand-held laser welding wand includes one or more removable filler media delivery extension tips. The wand is dimensioned to be grasped with a single hand, thus filler media of various types and forms may be supplied to the weld area on a workpiece using various t... | 04/18/2006 |
| 7025245 | Magnetic welder A magnetic welding and joining device is provided. The device has a separable induction coil that can be selectively coupled to provide an induction coil to be positioned around workpieces that are to be magnetically welded or joined. ... | 04/11/2006 |
| 7019256 | Method and apparatus for composite YAG laser/arc welding A combined YAG laser/arc welding apparatus performs a welding operation with a large depth of fusion and a deep fusion at a high efficiency. The welding apparatus includes an arc electrode which targets a point on a welded member where a laser beam from a YAG laser ... | 03/28/2006 |
| 7019255 | Method and apparatus for alignment of components of a plasma ARC torch A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated... | 03/28/2006 |
| 7015417 | Workpiece welding process A laser light L is emitted from a laser light source 6 to workpieces 1, 2, to form a laser molten weld pool 3, and immediately thereafter, an arc molten weld pool 4 is formed using an arc welding machine 7; thereby plates 1, 2 | 03/21/2006 |
| 7009139 | Method and apparatus for composite YAG laser/arc welding A combined YAG laser/arc welding apparatus performs a welding operation with a large depth of fusion and a deep fusion at a high efficiency. The welding apparatus includes an arc electrode which targets a point on a member being welded where a laser beam from a YAG ... | 03/07/2006 |
| 6995331 | Welding torch having collet and backcap adapted for securing engagement and method for operating same A collet and a backcap are provided that are securable to each other. The collet and backcap may be adapted for threaded engagement. The collet and backcap may be utilized in a welding torch. A method of securing a collet to a backcap is provided. The method may inc... | 02/07/2006 |
| 6987237 | Electrodes and nozzles having improved connection and quick release Electrode and nozzle that seat within a retaining member and in two different seating locations relative to retaining member. The electrode and nozzle each include an interwoven-double-start thread having two thread cuts, which start 180 degrees from one another as ... | 01/17/2006 |
| 6982395 | Method and apparatus for plasma welding with low jet angle divergence The invention relates to a method and an apparatus for plasma welding. A free microwave-induced plasma jet is generated by the following steps. Microwaves are generated in a high-frequency microwave source. The microwaves are guided in a wave guide. A process gas is... | 01/03/2006 |
| 6946617 | Method and apparatus for alignment of components of a plasma arc torch A coolant tube and electrode are adapted to mate with each other to align the tube relative to the electrode during operation of the torch. Improved alignment ensures an adequate flow of coolant along an interior surface of the electrode. In one aspect, an elongated... | 09/20/2005 |
| 6940037 | System and method for controlling welding parameters in welding-based deposition processes According to one embodiment of the invention, a method for controlling operational weld parameters of a welding-based deposition process includes generating a solid model representing a three-dimensional part on a computer, electronically slicing the solid model int... | 09/06/2005 |
| 6932879 | Method of weldbonding An improved method of weldbonding utilizing inclusion bodies, placed directly between materials to be bonded or included in a weldbonding adhesive. The inclusion bodies maintain a gap between the materials to be welded which provides a gas releasing egress route to ... | 08/23/2005 |
| 6928712 | Driveshaft and method and device for producing same A method and apparatus for assembling a driveshaft, and the driveshaft itself. The driveshaft (1) includes a first attachable part (2) with a first longitudinal axis (A1), a second attachable part (3) with a second longitudinal axis (... | 08/16/2005 |
| 6919526 | Plasma arc torch head connections A plasma arc torch is provided that comprises torch head connections that are made between consumable components and a torch head independent of rotational alignment of the consumable components. Accordingly, connections for the flow of a cooling fluid, plasma gas, ... | 07/19/2005 |
| 6914210 | Method of repairing a stationary shroud of a gas turbine engine using plasma transferred arc welding A stationary shroud of a gas turbine engine made of a base metal is repaired by removing any damaged material from a flow-path region of the stationary shroud to leave an initially exposed base-metal flow-path surface; and applying a base-metal restoration overlying... | 07/05/2005 |
| 6908023 | Apparatus for securing a yoke to a tube using magnetic pulse welding techniques An apparatus for supporting a workpiece, such as a yoke having a body portion and a pair of opposed yoke arms, during a magnetic pulse welding operation includes a lower jaw, an upper jaw, and a support pin extending therebetween. During the magnetic pulse welding o... | 06/21/2005 |
