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| Number | Title | Issue Date |
| 6768082 | Parts welding device This invention relates to a device for welding a flange (3) of a part (1) having a shaft (2) and the flange (3) to a steel plate (44). The device comprises a supporting shaft (26), on the end of which a hole (37) for ... | 07/27/2004 |
| 6325277 | Apparatus and method for aligning tubing segments An apparatus and method for precisely aligning and holding two thin walled stainless steel sanitary tubing segments end-to-end to allow for tack welding of the segments together during a tube assembly process are disclosed. The apparatus includes two pivo... | 12/04/2001 |
| 6244498 | Ultrasonic vibration mode for wire bonding A method and apparatus for creating second order vibrational modes. The apparatus includes a signal generator, a piezoelectric transducer, a plurality of wave propagating beams and reflecting boards. An electric field applied by the signal generator to th... | 06/12/2001 |
| 6066823 | Semiautomatic tube welding apparatus The present invention relates generally to an apparatus and method for performing tube-to-tubesheet welding within box headers and, in more particular, to a GTAW welding gun that has a long generally tubular barrel which is small enough in diameter to pas... | 05/23/2000 |
| 6029881 | Micro-scale part positioning by surface interlocking A principle of surface interlocking wherein the imperfections of two parallel surfaces deform and interlock under pressure. The surface interlocking enables the combination of a bridging element and a bonding tip of a diffusion bonding apparatus to pick u... | 02/29/2000 |
| 5996878 | Method of welding 5-G pipe A method for welding horizontal pipe along the inner diameter of the pipe and outer diameter of the pipe to prevent weld root defects on the bottom half of the pipe.... | 12/07/1999 |
| 5944248 | Apparatus for processing curved surfaces An apparatus for processing curved surfaces, in particular a pipe surface, using processing means which are guided over that surface at a distance thereabove by means of a guide to be pre-arranged on that surface, wherein the guide consists of a flexible ... | 08/31/1999 |
| 5655699 | Workholder for precision orbital welding A workholder to hold a workpiece, especially an end fitting, in accurate axial and angular orientation for orbital welding. It can optionally provide protection for sensitive surfaces on a fitting during the welding and handling processes.... | 08/12/1997 |
| 5558268 | Torch assembly for a conical surface A welding mechanism for build up of a conical surface includes a base assembly with a base gear fixedly mounted thereto, and a slide rail assembly rotatable about a base axis. The slide rail assembly includes a slide rail positionable parallel to the coni... | 09/24/1996 |
| 5501389 | Titanium tube seal welding head enclosure An arrangement for providing a seal fillet weld on a titanium tube sheet and tube includes an enclosure having a closed top and an open bottom opposite the top. The enclosure is positioned over the tubes to be welded on the tube sheet. A rotating seal wel... | 03/26/1996 |
| 5443199 | Universal carriage for cutting and welding An apparatus for performance of cutting and welding operations includes an enclosure which encloses a drive motor and which supports a drive wheel and an idler wheel for driving the enclosure along a track. A first support rod projects from the enclosure ... | 08/22/1995 |
| 5370296 | Apparatus for forming circular weld joints An apparatus for forming circular weld joints includes a support frame, a motor having a primary drive shaft, a secondary drive shaft coupled to the primary drive shaft, and a hub mounting plate affixed to the support frame. A floating hub assembly is inc... | 12/06/1994 |
| 4868367 | Rigid collet assembly for cylindrical workpieces A clamping device for holding cylindrical workpieces having a nominal radius R which varies from a minimum of (R-A) to a maximum of (R+B), where A and B are the limits of the tolerance range for the nominal radius. The clamping device includes opposed cla... | 09/19/1989 |
| 4767048 | Mobile robotic platform A mobile robotic platform and guide means therefor having a carriage with one or more uniquely constructed drive rollers having radially-extending metal filaments embedded in a complaint material and which coact with a track defining the guide means which... | 08/30/1988 |
| 4726300 | Adjustable spring-biased track assembly for mounting a welding head assembly on a pipe A track assembly for mounting a welding head assembly onto a pipe for the purpose of welding the pipe. The track assembly includes a flexible annular base which is to be located about the pipe in close proximity to the exterior surface of the pipe but spa... | 02/23/1988 |
| 4716271 | Apparatus for positioning a tool with respect to a cylindrical work piece An apparatus for circumferentially and longitudinally positioning a weld head or other tool with respect to the surface of a pipe. A first annular ring is affixed to the pipe. A longitudinally movable annular indexing track is also circumferentially fitte... | 12/29/1987 |
| 4703698 | Track mounted welding head base having cam pivoted drive assembly A welding head base to facilitate the mounting of a welding head assembly thereon for the purpose of welding a joint between abutted ends of a pipe. The base is mounted on the edges of a thin, sheet material, continuous band track and is capable of low fr... | 11/03/1987 |
| 4635839 | Welding carriage Welding carriage, including an articulated body having support wheel sets on its end sections, one of said end sections supporting a drive assembly movable toward and away from a track upon which the carriage travels, the drive assembly including two tand... | 01/13/1987 |
| 4597335 | Track for welding carriage and locator apparatus therefor Track to provide travel of a welding carriage about a pipe, including a metal band bent to encircle a pipe and being supported by slotted crossbars, the slots of the crossbars providing resiliency to the band so that the band will yield when tightened abo... | 07/01/1986 |
| 4593849 | Rotary welding device A welding device for building up metal for repair or construction of a metal bores, outside diameters and circular faces by laying down single or continuous metal weld beads in a pre-selected pattern; including a base member to receive a rotatable table w... | 06/10/1986 |
| 4577795 | Device for overlay-welding pipes bends A device for overlay-welding a pipe interior having an arm extensible into the interior of a respective pipe, the arm carrying a welding head at a free end thereof includes a rotating device in the form of a wheel surrounding and supporting the pipe, and ... | 03/25/1986 |
| 4576323 | Fillet-welding equipment for pipe materials A new and improved fillet welding equipment is disclosed which can be used to butt a pipe member against a plate-like surface and then weld the entire periphery of the butted pipe member. In this fillet welding equipment, a pair of welding torches are arr... | 03/18/1986 |
| 4570542 | Ribbon rail systems An elongate deformable ribbon drive rail for carrying a working apparatus having a toothed drive gear and support mechanism is provided in the form of a first narrow elongate strip of metal of width to carry the support mechanism, a second narrower strip ... | 02/18/1986 |
| 4568013 | Apparatus for supporting and moving tools for fixing a cluster of tubes to a tubular plate of a steam generator An apparatus for supporting and moving tools for fixing a cluster of tubes to the tubular plate (2) of a steam generator, comprising a first running track (25), a carriage (26) movable on this track, a horizontally alignable support (39) resting on the ca... | 02/04/1986 |
| 4531663 | Guide apparatus A guide apparatus comprises an annular rail and jaws for attaching the annular rail onto a cylindrical member to be inspected by an inspecting probe on the rail. The attaching jaws are provided on the rail and include at least two radially stationary jaws... | 07/30/1985 |
| 4513902 | Apparatus for the automatic welding of complex shapes Apparatus for automatic welding of complex contours made up of rectilinear and curvilinear portions. Such apparatus includes first and second movable carriages guided for reciprocation in directions parallel to each other and having a welding torch, a dri... | 04/30/1985 |
| 4448340 | Apparatus for replacing bolster rings The disclosure concerns a procedure for replacing a worn bolster ring on a freight car truck bolster which utilizes a motorized circle cutting and welding machine which rests upon the bolster and is centered by supporting structure positioned by locating ... | 05/15/1984 |
| 4440339 | Method of repairing housing of control rod driving system A method of repairing the housing of a control rod driving system of a nuclear reactor, the housing being inserted through the wall of a pressure vessel of the reactor into a cylindrical sleeve secured to the inner surface of the vessel, which housing is ... | 04/03/1984 |
| 4438600 | Grinding, welding and cutting apparatus A semiautomatic weld grinding apparatus for grinding the surface of a weld seam interconnecting two perpendicularly disposed tubular sections. The grinding apparatus is capable of grinding off excess weld from a saddle-type nozzle to shell weldment that f... | 03/27/1984 |
| 4386726 | Adapter for socket welds The adapter is arranged to be mounted to the horseshoe travelling carriage for a weld head in a pipe welding system to support the torch or weld head at an acute angle to the plane of rotation of the travelling carriage and thus to a plane normal to a pip... | 06/07/1983 |
| 4379215 | Orbital cassette welding head An orbiting welding head for welding tubing and the like together. A U-shaped tube clamp unit has a pair of jaws in which two tubing sections to be welded together are held with the edges of such tubing sections in abutment against each other. A welder un... | 04/05/1983 |
| 4372474 | Full function in-place weld head A pipe clamping structure is arranged to clamp an in-place pipe to be welded. A welding mechanism in turn is coupled to the pipe clamping structure for rigid guided movement in directions parallel to itself towards and away from the clamping structure in ... | 02/08/1983 |
| 4365132 | Welding apparatus for polygonal cross-sectioned tubing A welding apparatus which is designed to weld together tubular members having any exterior configuration. The welding electrode is mounted on mounting structure which in turn is movably mounted upon the periphery of a housing. The workpiece to be welded i... | 12/21/1982 |
| 4357515 | Manual tube-to-tubesheet welding torch A welding torch made of a high temperature plastic which fits over a tube intermediate the ends thereof for welding the juncture between the tube and the back side of a tube plate and has a ballooned end in which an electrode, filler wire guide, fiber opt... | 11/02/1982 |
| 4350280 | Smoke exhaust apparatus for a rotary welder An improved smoke exhaust apparatus for a rotary welder which comprises an elongated stationary carrier having a support member mounted thereon for rotation about an upright axis. Plenum and shroud elements are vertically spaced apart and are connected to... | 09/21/1982 |
| 4347421 | Automatic pipe circumference welding apparatus Herein disclosed is an automatic welding apparatus which comprises an arcuate frame including a welding unit and a pair of wire feeders, and an arcuate frame including a running truck and a pair of clamping mechanisms for fastening the outer circumference... | 08/31/1982 |
| 4336436 | Method for welding girth joints in pipe lines A method and apparatus for welding girth joints in pipelines using two welding heads comprises the steps of moving each of the welding heads upwards around the pipeline along the respective section of the girth joint, feeding a welding wire to each of the... | 06/22/1982 |
| 4331278 | Pipe welding apparatus Apparatus comprising a frame disposable in spaced relationship about a pipe uses a ring mounted thereon for carrying a welding head around the pipe. A welding torch is provided on the head for movement into the welding area to form a weld about the pipe d... | 05/25/1982 |
| 4330074 | Apparatus for automatic welding of bevelled tubes In the welding of tubes with bevelled ends without heels or root-faces, all the weldings beads are made from the outside of the tubes with the tubes being in contact with local gap not exceeding 2 mm. The first and second welding beads are made both by th... | 05/18/1982 |
| 4319113 | Apparatus for welding tubes to a tubesheet utilizing a continuous weld A welding torch is rotatably mounted in a carriage. The carriage and welding torch are driven by motors and driveshafts mounted on a base to provide a light carriage which can be rapidly accelerated as the torch moves from tube to tube when forming a cont... | 03/09/1982 |
