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| Number | Title | Issue Date |
| 8397975 | Tack welding clamps for axially aligning and holding curved or straight tubular sections A removable two-ring clamp has a first segmented ring assembly and a second segmented ring assembly that pivot relative to one another and can be individually loosened and tightened. The first ring assembly is received on and secured around an end portion of a first... | 03/19/2013 |
| 7909227 | Cryosurgical probe with vacuum insulation tube assembly A vacuum insulation tube assembly which is utilized as a component in a cryosurgical probe. The vacuum insulation tube assembly includes an inner tube; and, an outer tube concentrically positioned about the inner tube. The outer tube is securely soldered at end port... | 03/22/2011 |
| 7815093 | Guiding device The present invention relates to a guiding device (40) configured to guide equipment units for joining pipe sections which are arranged in a substantially upright position. The guiding device comprises a stationary body (41), one or more movable carrie... | 10/19/2010 |
| 7810696 | Internal pipe clamp alignment guides with purge backup This invention relates to an apparatus for clamping adjacent ends of pipe sections to be welded, the apparatus comprising a plurality of clamping members movable between retracted and extended clamping positions, each of the clamping members comprising a clamping sh... | 10/12/2010 |
| 7802714 | Machine for butt welding of pipes A machine for butt welding of pipes can be used in different branches of industry and construction when welding of tubular parts having different configurations and purposes. The machine increases the accuracy of pipe alignment during clamping and reduces frictional... | 09/28/2010 |
| 7699207 | Welding backup systems for heat-sink or purge purposes An internal ring assembly for welding backup against internal hoops of pipes or tanks has a chain assembly of diverse cells. A majority of the cells include a tile of conductive metal for abutting inside walls across a seam of two sections of pipe or tank to be weld... | 04/20/2010 |
| 7617963 | Apparatus and method for repairing welded elbow joints in a core spray line A clamp assembly is disclosed that can be remotely installed to structurally replace the P4a and P4b welds that join a short radius elbow to the core spray horizontal pipe and the vertical downcomer pipe in the core spray line that delivers cooling water to the reac... | 11/17/2009 |
| 7434718 | Device for cutting or welding tubular workpieces or the like The invention relates to a device (1) for cutting or welding tubes (3) or similar workpieces, said device comprising a guiding mechanism which is used to control the cutting or welding torch (17) along a pre-determined line and is provided with ... | 10/14/2008 |
| 7410087 | Welding backup systems for heat-sink or purge purposes A welding apparatus is disclosed for use during welding of a tubular metal nozzle to a tank's metal domed cap. The nozzle extends longitudinally between a base end for mating to the tank's cap at an aperture therein and a spaced-away terminal free end. Typically, th... | 08/12/2008 |
| 7398909 | Pipe collets A collet for holding a workpiece having an axis includes a collet base defining a collet axis. A plurality of contact points that are not integral with the collet base are supported on the collet base for movement relative to the collet base in directions generally ... | 07/15/2008 |
| 7347967 | Plastic system and method of porous bioimplant having a unified connector The present invention relates to a system and a method of manufacturing a porous bio-implant having a connecting member integrally formed therewith, and more particularly, to a system and a method of manufacturing a porous bio-implant in which a connecting member is... | 03/25/2008 |
| 7207555 | Support for moving cylindrical elements and method and conveyor using such supports The invention relates to a support (1) for rolling cylindrical elements, this support comprising first guide means (2) capable of guiding the cylindrical elements at a height z1. Downstream, in a direction in which the cylindrical elements roll,... | 04/24/2007 |
| 7195143 | Boiler tube alignment clamp A boiler tube alignment clamp with a clamp body having a V-shaped channel and two U-bolts bolted to the clamp body opposite the V-shaped channel for use in aligning and holding in place two sections of boiler tube for welding them together. A jacking screw at each e... | 03/27/2007 |
| 7185798 | Apparatus and method for mechanically reinforcing the welds between riser pipes and riser braces in boiling water reactors An apparatus and method for mechanically reinforcing the weld between a riser pipe and riser brace of a jet pump assembly are characterized by first and second attachment members for attachment on a riser brace of the jet pump assembly, and first and second clamp bo... | 03/06/2007 |
| 7089887 | Water wall fit up tool The water wall fit up tool will fit a wide range of tube panel sizes such as ⅞ inch through 3¼ inch tube sizes. It uses the adjacent tubes to force the tube panel into alignment. One unit can fit up two tubes yet can be used in conjunction with two or more tools.... | 08/15/2006 |
| 7036202 | Apparatus and method for handling of tubulars The present invention provides an apparatus for attachment to pipe handling arm, comprising a clamp for gripping a tubular and a guide for aligning said tubular with another tubular prior to connection thereof, characterized in that said clamp and said guide are mov... | 05/02/2006 |
| 7011244 | Centering insert and a method of assembling and welding together two pipe elements A centering insert device for centering two pipe elements that are to be welded together end to end, the device comprising a central body supporting a plurality of clamps. The clamps located at the center section planes have a circular conforming effect in at least ... | 03/14/2006 |
| 6953142 | Method and apparatus for locating and holding a flange Apparatus for locating and grasping a flange include a plurality of clamp arms that move from an unclamped position to a clamped position, clamping the flange to the upper surface of a support platform. A plurality of pins are adapted to move upwardly into flange ho... | 10/11/2005 |
| 6915943 | Tetherless internal line-up unit for pipeline welding A line-up clamp unit is powered by a diesel engine which drives a hydraulic pump for operating hydraulic equipment in the unit. The unit includes a line-up clamp which has front shoes, rear shoes and expanding copper back-up tiles. Drive wheels are deployed by a hyd... | 07/12/2005 |
| 6840433 | Method and device for welding pipes Method for welding piped (2, 3) to each other, in which the outer side of the one pipe is engaged tightly with the help of first clamping means and the outer side of the other pipe is engaged tightly with the help of second clamping means in which the first a... | 01/11/2005 |
| 6729529 | System and method for cutting and orbital welding thin-walled tubing A system for providing cutting and orbitally welding thin-walled tubing. The system includes a plurality of clamping blocks that hold the tubing while the tubing is trimmed and orbitally welded. The system further includes at least one tooling plate to which the cla... | 05/04/2004 |
| 6662994 | Jig for welding pipe ends A jig for coaxially welding together a pair of generally coaxial tubular pipe ends meeting at a joint has a pair of support bodies in the pipe ends flanking the joint and each having an outer surface tapering axially inward toward the joint. Respective ar... | 12/16/2003 |
| 6646219 | Tube clamping assembly A tube clamping assembly comprising a first portion having a base and a clamping device carried on the base, and a second portion having a base and a clamping device carried on the base. The first and second portions are coupled to each other such that th... | 11/11/2003 |
| 6641029 | Guide assembly for cutting torch A holder secured to the tip of a cutting torch supports a guide about which a hole is to be cut in a steel pipe or sheet. A fixture, magnetically attached to the pipe or sheet supports a magnetically retained fitting to be tack welded to the cut hole at t... | 11/04/2003 |
| 6572002 | Device for the positioning of an operating member, and a welding apparatus using the same A positioning device in which an operating member is solid with a mechanical touching member and is displaced together with it by computer controlled displacement devices; both the operating and the touching members are mounted on a common supporting memb... | 06/03/2003 |
| 6450395 | Method and apparatus for friction stir welding tubular members There is provided an apparatus for forming a weld joint between abutting ends of first and second tubular members. The welding apparatus includes a support ring defining an aperture therethrough. The support ring has first and second sides defining a chan... | 09/17/2002 |
| 6428908 | Contact and method for producing a contact What is described here is an electrical and mechanical contact consisting of a rigid background, a flat thin bond structure and a bond connection, as well as a method of electrically and mechanically connecting a flat thin bond structure with a rigid back... | 08/06/2002 |
| 6398101 | Bi-directional compliant precision linear slide A bi-directional compliant precision linear slide apparatus having a base that supports two side bearing blocks, side rails and an internal air cylinder. The bearing blocks allow for a set of side rails to be moved in a first direction via the introductio... | 06/04/2002 |
| 6398100 | Back-up clamp A back-up clamp suitable for backing up a weld to be formed between adjacent pipe lengths in a pipeline, the clamp having a rigid clamp body, at least one set of clamping members mounted upon the clamp body, a set of back-up shoes mounted upon the clamp b... | 06/04/2002 |
| 6386421 | Actuation system for an internal backup ring assembly An actuation system for a clamping assembly for use in a pipe clamping apparatus, including a shaft and an actuator defining an actuator chamber having a peripheral chamber wall. The actuator is movably mounted about the shaft such that the shaft extends ... | 05/14/2002 |
| 6382496 | Welding handle clamp Handle clamps and a clamping kit for clamping or clamping and fastening a mold during exothermic welding are disclosed in which a single handle clamp may be utilized in at least three different exothermic welding operations. The handle clamp may be utiliz... | 05/07/2002 |
| 6283361 | General-purpose jig A general-purpose jig is provided which includes a base, a locational holding device mounted on the base and having a tripod robot that includes three expansion actuators, and a clamp attached to the locational holding device. The position of the clamp ca... | 09/04/2001 |
| 6262403 | Apparatus for aligning ends of diffusion bonded materials A diffusion bonding method having a step of adjusting ends of material to be bonded before bonding the material after setting the materials in the diffusion bonding apparatus, whereas a diffusion bonding apparatus having a means of finishing ends of mater... | 07/17/2001 |
| 6257479 | Tooling and methods for circumferential friction stir welding A back-up tooling apparatus for supporting the inner side of a hollow cylindrical workpiece during a circumferential friction stir weld includes a plurality of arcuate shoes configured to mate end-to-end to form a substantially continuous ring, and an exp... | 07/10/2001 |
| 6234383 | Method and apparatus for circumferential application of materials to an interior surface of a curved pipe A method and apparatus for circumferential application of materials to an interior surface of a curved pipe includes providing a pipe support with a rotational axis. A curved section of pipe is mounted to the pipe support. An arm supporting an applicator ... | 05/22/2001 |
| 6226855 | Method of joining lined pipes Two outer steel pipes (16 and 16A) are each lined by corrosion resistant lining pipes (18 and 18A) of compressible plastics material which stop short of the ends (20, 20A) of the outer pipes to leave an annular recess or counterbore (24 and 24A) at each o... | 05/08/2001 |
| 6220498 | Apparatus and method for welding and inspecting coiled tubing An apparatus and method for use in welding together sections of coiled tubing (6) in the oil industry, wherein the apparatus has a container (14), legs (12) which can be adjusted to adjust the height of the container (14), welding apparatus in the contain... | 04/24/2001 |
| 6184493 | Vertical diffusion bonding apparatus A vertical diffusion bonding apparatus is provided with a lower block, a pressurizing jig which is fitted to a metal pipe supplied from an upper position, and a pressurizing mechanisms stood erect on the lower block. The lower metal pipe is held by the lo... | 02/06/2001 |
| 6161296 | Alignment device for use in welding An alignment device for use in welding which includes a saddle style support which rests upon a first pipe. A second pipe is clamped to the saddle style support in an orientation substantially perpendicular to the first pipe upon which the saddle style su... | 12/19/2000 |
| 6129263 | Mounting method of bonding insert material and jig used in the method A bonding insert material mounting method includes the following steps. A bonding insert material having projections of a suitable shape formed on an outer periphery thereof at predetermined intervals is held by half-splittable holder into which joining m... | 10/10/2000 |
