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| Number | Title | Issue Date |
| 7371994 | Buried arc welding of integrally backed square butt joints Buried arc welding is employed to fuse together a first component, a second component, and a third component or an underlying portion of the second component, the first and second components in butting relationship along a butting joint and the third component or un... | 05/13/2008 |
| 7341176 | Method of tying two or more components together Method of tying two or more components together using a fastener. Each component is provided with a hole and the components are placed so that the holes overlap one another in order to receive the fastener in the holes. The fastener is placed in the holes and mechan... | 03/11/2008 |
| 7326898 | Method and apparatus for closing or severing a tube using a controllable closure force FIG. 1 depicts a full view of the picnic table backrest. It shows the backrest, the bars that wrap around the bench to keep the back rest stable and the latch on the back of the rest that keeps the rest from slipping out. FIG. 2 shows a close up view o... | 02/05/2008 |
| 7256368 | Welding and tack welding method involving the use of a non-fusing electrode The invention relates to a welding method involving the use of a non-fusing electrode (12) according to which the electrode (12) is provided with power from a power source once the arc (11) between the electrode (12) and the workpieces ( | 08/14/2007 |
| 7199326 | Jig and method for positioning spot welding electrode A positioning jig for a spot-welding electrode includes an attaching portion for temporarily attaching to a workpiece. A positioning portion of the jig is disposed in parallel to a central axis of the attaching portion and spaced from the central axis. The positioni... | 04/03/2007 |
| 6828526 | Gas metal buried arc welding of lap-penetration joints A method of welding continuous or intermittent lap-penetration joints using a gas metal buried arc (GMBA) welding process. A first component is GMBA welded to an underlying second metal component, by forming an arc between a consumable metal electrode and a surface ... | 12/07/2004 |
| 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 first and second coils, and a tip end of the wire is connected to a tr... | 04/06/2004 |
| 6707002 | Method and apparatus for welding and control thereof A method and apparatus for welding includes one or more of a welding type power source, a feedback circuit, a wire feeder and a controller. The controller preferably has an eta control circuit responsive to the feedback. It also has a control loop having a response ... | 03/16/2004 |
| 6685076 | Roller for nipped applications and method of making roller A roller including an inner tubing and an outer tubing which is fixed relative to the inner tubing by welding the outer tubing to the inner tubing. The roller with weldments is particularly suitably for a nipped application.... | 02/03/2004 |
| 6388224 | Systems for robotic stud arc welding without ferrule Apparatus and methods for arc welding a stud to a workpiece without the use of a ferrule are disclosed. Apparatus according to the invention include a stud arc welding gun having a spacer at a distal end thereof, and a chuck adapted to receive a stud havi... | 05/14/2002 |
| 6368718 | Structural steel elements coated with anticorrosive coatings and process for welding the same An anti-corrosive coating for structural steel components contains 3 to 80 wt. % of a binder including polymeric material, and 20 to 97 wt. % of a filler including semiconductive elements or compounds. A process for welding a steel component coated with s... | 04/09/2002 |
| 6359260 | Method of welding panels together A method of welding in which an edge portion of a first panel is placed over an edge portion of a second panel, with an outer edge of the edge portion of the first panel adjacent to a shoulder of the second panel to provide a joint between the outer edge ... | 03/19/2002 |
| 6193142 | Assembling apparatus assembling body side of automotive vehicle and assembling method thereof An assembling apparatus assembling a body side of an automotive vehicle, comprises: a moving body provided in a transfer line; a clamp member provided on the moving body for fixing and positioning a body side outer in an upright position in such a manner ... | 02/27/2001 |
| 6172334 | Tool kit for shielded metal-arc welding Welding device to enable a welder to maintain an upright position when welding at floor level. The device is a rigid handle having a pistol-type handgrip and telescoping tubes. The telescoping tubes can be easily adjusted and interlocked, thus providing a... | 01/09/2001 |
| 6034345 | Apparatus for repairing high temperature process vessels An apparatus for repairing high temperature process vessels while at or near their operating temperatures, which may be up to 3000° F. The apparatus includes a lance, a welding apparatus at the distal end of the lance, and power supply and control cablin... | 03/07/2000 |
| 5734144 | Plasma arc welding method and apparatus in which a swirling flow is imparted to a plasma gas to stabilize a plasma arc There is provided a plasma arc welding method, characterized in that a portion of a front side workpiece material is heated and melted by a plasma arc to form a molten pool thereat, that the molten pool is held not to fall or drop under a surface tension ... | 03/31/1998 |
| 5674419 | Method for weld repairing of structures in nuclear reactors Disclosed is a highly reliable weld repairing method to repair a crack defect in structures and apparatus inside pressure vessels of nuclear reactors, while preventing generation of new crack defects in the structures and apparatus during the repairing. T... | 10/07/1997 |
| 5532453 | Process for welding a stack of thin metal sheets There has been provided a process for spot welding a stack of thin metal strips or layers with a non-depositing welder gun. The process involves forming a stack of thin metal layers, compressing the layers between the jaws of a press, one of which has at ... | 07/02/1996 |
| 5521353 | Welding robot A welding apparatus and method for forming arc welds of thin sheet material. The apparatus forms a first pool of molten material and then discontinues the welding to permit a portion of that pool to solidify and then reestablishes a new arc at point along... | 05/28/1996 |
| 5488214 | Inductive cooking point heating system An inductive hot point heating system is regulated or controlled by an oscillation packet control, which uses a symmetrical pattern of complete mains half-waves. The switching takes place in the zero passage and is symmetrical in such a way that there is ... | 01/30/1996 |
| 5486678 | Process of and machinery for joining two metal sheets by welding Process for welding a weld-in part in a weld point comprising a metal plate and a metal covering lying thereon with two tools of which one is formed by a welding head and the other by a drill for preparing the weld point by a drilling process. The drill a... | 01/23/1996 |
| 5400943 | Device for spot welding of structures formed of pressed sheet metal elements In a welding station, particularly for motor-vehicle bodies, the elements to be welded are locked in a precise position by locking devices carried by locating gates. There are provided a number of pairs of locating gates, corresponding to the number of di... | 03/28/1995 |
| 5397047 | Device for spot welding of structures constituted by sheet metal elements, particularly motor-vehicle bodies In a welding device for motor vehicle bodies there are provided a number of pairs of locating gates adapted to operate on different models of body. In the work position, each pair of locating gates can be selectively coupled to a plurality of auxiliary fi... | 03/14/1995 |
| 5202545 | Process for point-welding a highly corrosion resistant metal cover plate on a metal support The instant invention relates to the point welding of a highly corrosion-resistant metal cover plate to a less corrosion-resistant support and provides for the highly corrosion-resistant cover plate to be provided with holes and to be bonded at the same t... | 04/13/1993 |
| 4956540 | Arc spot welding apparatus There is disclosed an arc spot welding apparatus comprising a welding power supplying unit, a wire feeder connected to the welding power supplying unit by a control cable and an arc spot welding torch connected to the wire feeder by a torch cable which is... | 09/11/1990 |
| 4954689 | Welding unit A welding unit of semi-automatic design for use in spot welding applications in which limited production volumes, low labor rates, and other cost-related factors negate the use of high production, fully automated units. The welding unit comprises two auto... | 09/04/1990 |
| 4868366 | Arc welding capable of multi-mode welding An electric welding control circuit incorporates a mode selection switch to enable the welder to be used in a selected one of several operational modes, such as a rod welder, a MIG, a TIG or a spot/stitch welder. A wire feed motor is used in the MIG mode ... | 09/19/1989 |
| 4788411 | Welding method which provides a weld with corrosion protection A welding method for metal parts includes preparing the surface areas of the parts to be welded to provide bare metal surfaces which are clean and dry, clamping said parts together, coating the bare metal surface with a liquid coating comprised of zinc du... | 11/29/1988 |
| 4601151 | Welded roof support A building roof, having an optimum strength to weight ratio, and method of constructing the roof wherein a horizontally disposed roof deck assembly particularly adapted to provide diaphragm shear strength and shear stiffness is formed comprising: a sheet ... | 07/22/1986 |
| 4596522 | Hermetic type compressor with reduced thickness portions for welding In a hermetic type compressor including a casing, an electric motor provided in the casing for rotating a driving shaft, and a compressor unit including a cylinder forcibly inserted in the casing, there are provided a method and a device for securing the ... | 06/24/1986 |
| 4526522 | Hermetic type compressor and production methods thereof with reduced thickness casing portions for welding In a hermetic type compressor including a casing, an electric motor provided in the casing for rotating a driving shaft, and a compressor unit including a cylinder forcibly inserted in the casing, there are provided a method and a device for securing the ... | 07/02/1985 |
| 4492848 | Spot arc welding apparatus An apparatus for spot arc welding overlapping pieces in which a pair of contact electrodes with concave portions are arranged opposite to each other, and at least one electrode has a central hole to accommodate a consumable electrode; the concave portions... | 01/08/1985 |
| 4480170 | Arc spot welding equipment An arc spot welding equipment wherein a hand having a positioning and clamping device for a work and a welding torch is attached to an arm of an industrial robot. The small work is clamped in a predetermined positional relation to the welding torch and is... | 10/30/1984 |
| 4458135 | Compact tool for automatic MAG spot welding In a compact tool for automatic MAG spot welding, all of the elements are located close to the welding zone and a single set of props both support the articles to be welded and provide a negative electrical current contact. A welding head is slidably supp... | 07/03/1984 |
| 4404456 | Micro-arc welding/brazing of metal to metal and metal to ceramic joints Method and apparatus for micro-arc brazing and welding of metal to metal or ceramic. The control of arc heat flux density is accomplished by controlling the ambient gas pressure and providing an argon, argon/5% hydrogen or other inert gas atmosphere. The ... | 09/13/1983 |
| 4396821 | Method of spot arc welding To spot weld overlapping work pieces contact electrodes are used with concave portions. The workpiece is preheated by the contact electrodes then spot arc welded by a consumable wire fed through one of the contact electrodes. The spot arc weldment takes t... | 08/02/1983 |
| 4390777 | Fusion welding process A process for the fusion welding of nickel alloy steel members wherein a ferrite containing pellet is inserted into a cavity in one member and melted by a welding torch. The resulting weld nugget, a fusion of the nickel containing alloy from the members t... | 06/28/1983 |
| 4375024 | Apparatus for welding base pins of fluorescent lamp An apparatus for welding the base pins of a fluorescent lamp, comprising two pairs of electrode holders disposed along the direction of advancement of said fluorescent lamp with a predetermined distance therebetween and removably holding welding electrode... | 02/22/1983 |
| 4359599 | Electrical conductor connection and method of making same Two improvements to the electrical conductor connection disclosed in U.S. Pat. No. 4,163,869. The first is a new and improved process for forming by means of multiple timed MIG arc welding, an electrical connection between at least two lapped aluminum con... | 11/16/1982 |
| 4347426 | Arc-spot welding method and apparatus A method and apparatus for making a plurality of arc-spot welds in a predetermined pattern is disclosed. A plurality of welding torches are mounted upon a carriage which is longitudinally movable relative to a work piece. The work piece is supported by wo... | 08/31/1982 |
