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| Number | Title | Issue Date |
| 7523847 | Endothermic connector for copper welding The present invention provides a device to weld metallic elements. The device is an endothermic connector that comprises a chassis that is assembled by joining two equal halves around the end of a metallic rod with an assembling nut and a pressure nut. The chassis a... | 04/28/2009 |
| 7406909 | Apparatus comprising armor An armor that is used, for example, in multi-cell missile launchers is disclosed. In some embodiments, the armor includes three layers. The inner-most layer undergoes explosive welding when exposed to a pressure wave from an explosion. An intermediate layer in-elast... | 08/05/2008 |
| 7219425 | Arrangement in explosion joining of ends of wires and the like A method of joining the interfacing ends of cables, one to another, wherein each comprises a plurality of conductor strands, comprising (i) providing each of the ends with an enlarged terminal portion of greater diameter than the cable adjacent the end, (ii) inserti... | 05/22/2007 |
| 7015434 | Method of joining together magnetic and nonmagnetic materials A method whereby magnetic and nonmagnetic materials can be joined together firmly and having their joining areas freed from embrittlement and with a minimum of deformation is disclosed. Applied to the process of fitting a ring of nonmagnetic material into an annular... | 03/21/2006 |
| 6953143 | Explosion welded design for cooling components A method and apparatus are described for making a coldplate. A first component of, for example copper, is explosion welded to a second component of, for example aluminum. The first metal component has a top surface opposite the second metal component and at least on... | 10/11/2005 |
| 6953141 | Joining of tubulars through the use of explosives Embodiments of the present invention generally relate to methods and apparatus of connecting wellbore tubulars by explosive welding, using a frangible anvil, and reforming a surface of wellbore tubulars at a connection. In one embodiment, a first tubular is aligned ... | 10/11/2005 |
| 6907652 | Pipe connecting method A method of connecting a first pipe to a second pipe having an end part fitting into an end part of the first pipe, comprising arranging the end part of the second pipe within the end part of the first pipe, arranging a sleeve of a deformable material between said e... | 06/21/2005 |
| 5676303 | Explosive spot joining of metals The invention is an apparatus and method for wire splicing using an explosive joining process. The apparatus consists of a prebend, U-shaped strap of metal that slides over prepositioned wires. A standoff means separates the wires from the strap before jo... | 10/14/1997 |
| 5531369 | Process for making machines resistant to cavitation and liquid droplet erosion The method comprises explosively bonding a NiTi alloy to a steel workpiece formed in the shape of at least a portion of a desired hydraulic device. The nickel content of the NiTi alloy is sufficient to place the alloy substantially completely in the ... | 07/02/1996 |
| 5470013 | Method of cladding tubes A method of cladding an outer tube (1) with an inner tube (2), wherein the inner tube is made of a corrosion-resistant material, for instance. The inventive is characterized by placing a number of explosive charges (3) in mutually spaced arrangement in th... | 11/28/1995 |
| 5370298 | Method for explosion welding of joints and an apparatus for joining two pipes by means of explosion welding In explosion welding to join abutting pipes it is proposed that the external support comprise an annular member made of concrete or similar material.... | 12/06/1994 |
| 5064111 | Permanent wire splicing by an explosive joining process The invention is an apparatus and method for wire splicing using an explosive joining process. The apparatus consists of a prebent, U-shaped strap of metal that slides over prepositioned wires. A standoff means separates the wires from the strap before jo... | 11/12/1991 |
| 5050789 | Apparatus and method for explosive bonding to edge of flyer plate The invention is an apparatus and a process for the explosive joining of a flyer plate and a base plate. The apparatus consists of a flyer plate positioned over a base plate. The flyer plate has a notch containing a filler material in intimate contact wit... | 09/24/1991 |
| 5038994 | Apparatus for explosively welding a sleeve into a heat exchanger tube A sleeve containing an explosive charge which is explosively welded along a tapered end to the inner surface of a tube for repairing a damaged section of the tube. No mechanical support is needed along the outer surface of the tube despite the explosive e... | 08/13/1991 |
| 4953775 | Method of effecting a single joint between two pipes The invention relates to a method of effecting a single joint between two pipes of the pipe-line type by means of explosion welding, without the pipes being displaced in axial direction. This is achieved by moving an inner peripheral body (9) for welding ... | 09/04/1990 |
| 4907731 | Dynamic high pressure process for fabricating superconducting and permanent magnetic materials Shock wave formation of thin layers of materials with improved superconducting and permanent magnetic properties and improved microstructures. The material fabrication system includes a sandwiched structure including a powder material placed between two s... | 03/13/1990 |
| 4887761 | Method of making explosively bunded multi-laminar composite metal plate A method of explosively bonding metal plates into a multi-laminar composite plate wherein the metal plates are assembled over a restraining means, e.g. an anvil, in overlapping spaced-apart relationship, a driver plate having a mass of at least the total ... | 12/19/1989 |
| 4880153 | Device for use in explosive welding of two overlapping tubular or annular elements A device for use in explosive welding of two overlapping tubular or annular elements (1, 2) by an explosive charge (3). The explosive charge (3) is located in the hold of the one element (1) in front of the overlapping portion of the other element (2). Th... | 11/14/1989 |
| 4867369 | Method pertaining to the explosion welding of very thin metal layers A method of explosion welding very thin plastic foil to a thicker base material. By fastening a soft material of low acoustic velocity in position on the metal foil prior to carrying out a welding operation, the pressure differences which prevail in the p... | 09/19/1989 |
| 4813804 | Method of attaching supporting element to structure, and supporting element therefor A supporting element is firmly attachable to a structure by detonating an explosive charge which is placed behind a body projection displaceable by an explosion of the charge to and into firm bond with the structure.... | 03/21/1989 |
| 4809902 | Method of welding using particle acceleration The invention relates to a method for welding different materials. An adapted quantity of additive material in the form of particles (3) is accelerated with the aid of an explosive charge (1) and a propulsion element (2) to a high velocity down into a joi... | 03/07/1989 |
| 4789094 | Device for alignment of cylindrical workpieces for magnetic-discharge welding A device for alignment of cylindrical workpieces for magnetic-discharge welding is provided with external and internal aligning sleeves (2,3) installed in an induction heater (1) coaxially and overlapping each other; the external aligning sleeve (2) is ma... | 12/06/1988 |
| 4762265 | Plug for kinetic bonding procedure An exterior surface portion of a metal tube (30) is bonded to a surface portion of a bore (11) in a metal tubesheet (10) by detonating an explosive bonding charge (31) inside the tube (30) adjacent a front face (13) of the tubesheet (10). The bonding char... | 08/09/1988 |
| 4756464 | Method of manufacture of composite laminar metal plate An improved method is described for metallurgically bonding a composite metal plate (from which structural transition joints may be cut) wherein an outer layer and a metal interlayer of a different composition are propelled towards a metal base layer by m... | 07/12/1988 |
| 4749117 | Tube sheet welding An improved method for the explosive expansion and welding of tubes to tube sheet includes trepanning the rear face of the tube sheet to form integral collars around each tube-receiving bore in the tube sheet. The collars prevent accumulation of corrosive... | 06/07/1988 |
| 4746150 | Joint for joining together two pipe ends When joining together pipe-lines, in particular, by means of explosive welding, an outer support tool is generally used, together with an inner peripheral body (3) which is applied by means of explosives (5), to the inner surfaces of the pipes (1 and 2) t... | 05/24/1988 |
| 4708280 | Tool and process for miniature explosive joining of tubes The invention is a tool and process to be used in explosive joining of tubes. The tool consists of an initiator 81, a tool form 82 and a ribbon explosive 25. The assembled tool 80 is a compact, storable and safe device suitable for explosive joining of sm... | 11/24/1987 |
| 4685205 | Apparatus for forming an explosively expanded tube-tube sheet joint including a barrier tube Apparatus for expanding a tube into a bore formed in a tube sheet in which a tubular force-transmitting member extends within the tube coextensive with the portion of the tube to be expanded. An explosive is disposed in the bore of the force-transmitting ... | 08/11/1987 |
| 4669649 | Joint between two preferably metallic pipes and method of producing said joint Sealing and cracking problems occur when joining coarse-caliber pipes (1 and 2) for oil or gas, for instance, by means of welding. The problem is solved by using an outer peripheral part (3) and an inner peripheral part (4) at the joint, and applying the ... | 06/02/1987 |
| 4641774 | Fixture for explosively welding a tube to a tubesheet A fixture for explosively welding a tube to a tubesheet in which a plug extends within a cup which in turn is inserted into a fixture tube. A first explosive extends within the chamber defined by the cup and the plug and a second explosive extends within ... | 02/10/1987 |
| 4641775 | Means for splicing two pipes Explosion welding is used for splicing thick pipes (1 and 2) or the transport of oil and gas. A plating ring (4) and its explosive (7) are located inside the pipes, and a support (12 and 13) surrounding the two pipes (1 and 2) in order to limit the deform... | 02/10/1987 |
| 4640192 | Means for securing tubes to a tube sheet A device for mechanically welding a tube to a tube sheet having holes into which the tube is placed. A detonator is provided for detonating explosives for generating gas at a high pressure. A barrel having a perforated section is attached to the detonator... | 02/03/1987 |
| 4635840 | Forming method using an electromagnetically exploded filament The invention provides a method for expanding a pipe at a predetermined location therealong by positioning a conductive wire at the required location and rapidly discharging a known electrical charge through the wire to explode, thereby initiating a shock... | 01/13/1987 |
| 4632292 | Method of joining pipes by explosive welding using disintegrating anvil A method is described for joining an inner metal pipe with an outer surrounding metal tubular portion by means of explosive welding in which a contact anvil is placed inside the inner pipe to support it during welding. With the anvil in place, the pipes a... | 12/30/1986 |
| 4607778 | Welding fixture for nuclear fuel pin cladding assemblies A welding fixture for locating a driver sleeve about the open end of a nuclear fuel pin cladding. The welding fixture includes a holder provided with an open cavity having shoulders for properly positioning the driver sleeve, the end cap, and a soft, high... | 08/26/1986 |
| 4592577 | Sleeve type repair of degraded nuclear steam generator tubes A sealable multimetallic sleeve for a rapid repair of a degraded tube caused by a detrimental chemical attack on the outside surface of the tube within and in a vicinity of a tube sheet in a steam generator, and the method for sealably inserting the sleev... | 06/03/1986 |
| 4587904 | Debris free plug assembly for heat exchange tubes An explosive activated assembly for repairing a heat exchange tube in which a grooved metal casing is inserted into the tube to be repaired and has a plurality of projections extending from the outer surface thereof. A force-transmitting member extends wi... | 05/13/1986 |
| 4585155 | Explosive welding patch unit and method A patch unit apparatus and method for expeditiously closing openings in metal walls by explosive welding. The patch unit comprises a metal plate having on one side an explosive charge located near the plate perimeter, and having on the opposite side a con... | 04/29/1986 |
| 4583672 | Explosive welding device An explosive welding device is disclosed for securing sleeves within a tubular fluid conveying conduit. The device comprises a shatterable cup member, explosive material secured within the cup, a means for detonating the explosive material and a means for... | 04/22/1986 |
| 4561585 | Method of splicing metal elements by means of explosion-welding The invention relates to a method of welding together metal elements by means of explosion-welding. To limit the quantity of charge required, the charge is enclosed in an inert cylindrical medium serving as blasting medium and medium for transmitting shoc... | 12/31/1985 |