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| Number | Title | Issue Date |
| 7329829 | Optical cable unit An optical cable unit has a metal tube with a longitudinal laser-welded seam and at least one optical waveguide in the interior of the metal tube. The metal tube has a first inner layer and a second outer layer, where the first inner layer is made from copper and th... | 02/12/2008 |
| 7318267 | Strip production equipment Arranged are a twin- or single-roll continuous casting machine supplied with molten metal from a tundish arranged above so as to continuously cast a strip with a predetermined width, a trimmer arranged downstream of the continuous casting machine to trim widthwise e... | 01/15/2008 |
| 7266886 | Method of continuously fabricating a corrugated coaxial cable The invention relates to a method of continuously fabricating a coaxial cable in which ring-shaped corrugations are imparted to a conductor of the cable in a corrugator. The corrugator is made to operate at constant speed. ... | 09/11/2007 |
| 7214899 | Process for the continuous production of longitudinally welded metal tubes A process for the continuous production of longitudinally welded metal tubes where a metal strip (1) is drawn from a strip supply and gradually shaped into a slit tube in a shaping station (2). The slit tube is welded in a welding system (4) alo... | 05/08/2007 |
| 7157672 | Method of manufacturing stainless steel pipe for use in piping systems A welded low carbon dual phase (ferrite plus martensite) and/or low carbon martensitic stainless steel PIPE having requisite yield strength and corrosion and/or erosion resistance is shown. Pipe can be manufactured up to a maximum outside diameter from finished plat... | 01/02/2007 |
| 7121002 | Heat exchanger This invention relates to a heat exchanger which is produced by connecting two walls together at a plurality of points by compression molding and sealing the edges thereof. ... | 10/17/2006 |
| 6808103 | Method for continuous high-speed welding of double-ply metal tubes and welding furnace for performing the same The present invention is a method and apparatus for making a double-ply metal tube such as those used for automobile brake tubes by producing the tube continuously in a single process. The present invention is characterized by using a high-temperature reducing molte... | 10/26/2004 |
| 6732906 | Tapered tower manufacturing method and apparatus Method and apparatus for the manufacture of large-diameter, elongated, generally conical members in a continuous operation. ... | 05/11/2004 |
| 6685082 | Process for continuous production of longitudinally welded metal tubing In a process for continuous production of longitudinally welded metal tubing, in which a metal strip is withdrawn from a strip supply, gradually shaped into a tubing with an open longitudinal slit, and the longitudinal slit is sealed by soldering or weldi... | 02/03/2004 |
| 6405919 | Process for the continuous production of longitudinally seam-welded and corrugated metal tubes In a process for the continuous production of longitudinally seam-welded and corrugated metal tubes (46), a metal band drawn off from a supply reel is formed into an open-seam tube, welded at its longitudinal edges, and the welded smooth tube (45) corruga... | 06/18/2002 |
| 6152352 | Continuous hot rolling method of metal blocks, as well as a metal block joining apparatus, a table roller for conveying the metal blocks, a poor joined portion removing apparatus and a metal block cooling apparatus which are used to carry out said method The invention comprises a continuous hot rolling method in which a rear end portion of a preceding metal block and a fore end portion of a succeeding metal block are cut and the metal blocks are joined to each other by heng and pressing followed by a f... | 11/28/2000 |
| 5829666 | Manufacturing method of tubular bumper reinforcement member A method for manufacturing a sweeped tubular bumper reinforcement member having a rear wall formed with an inwardly indented portion in cross-section and a front wall formed in parallel with the rear wall and welded to the inwardly indented portion of the... | 11/03/1998 |
| 5395036 | Method of roll-forming an end automotive bumper An end bumper for vehicles constructed from a single sheet of high-tensile strength steel roll-formed to provide two side-by-side tubular sections. Each section has a front wall, an outer side wall, a rear wall, and an inner side wall, the inner side wall... | 03/07/1995 |
| 5362937 | Overlaying of plates An apparatus for applying weld metal for the purpose of hard-facing of metal plates and a method of operation of the apparatus. A metal plate is moved through an apparatus in which there are weld heads including welding electrodes. The metal plate has a s... | 11/08/1994 |
| 5360156 | Welding management apparatus A welding management apparatus for use with a tube production machine. A workpiece fed from a roll of metal strip is formed in a tubular formation having side surfaces opposite to each other. An upsetting pressure is applied to joint the opposite side sur... | 11/01/1994 |
| 5219113 | Method and arrangement for stretch bending of metal strip A method and an arrangement for the treatment of metal strip, particularly for the treatment of hot-rolled metal strip in an entry portion of a pickling line through which the metal strip travels continuously. The method includes straightening the metal s... | 06/15/1993 |
| 5217155 | Method of continuously hot-rolling sheet bars A method of continuously hot-rolling sheet bars in which a roughly rolled leading sheet bar and a trailing sheet bar are abutted prior to a hot finish rolling step. Plastic deformation of either or both of the cut rear and front end portions of the leadin... | 06/08/1993 |
| 5211326 | Method of manufacturing a built-up metal plate and welding carriage for the carrying out of the method A method is described for manufacturing a built-up sheet panel by forming a double flanged joint with raised flange edges between sheets arranged alongside of each other, which are then welded together by means of a driven welding carriage, the raised fla... | 05/18/1993 |
| 5205468 | Butt welding sheets Fusible sheet edges are joined by first forming each of the edges with a laterally projecting burr and then butting the edges together at a join line with both the burrs directed in the same lateral direction adjacent each other and plastically deforming ... | 04/27/1993 |
| 4973089 | Apparatus and method for making overlapping strip joints Strip joining apparatus for joining the ends of two metal strips in overlapping relation includes a shear assembly mounted for indexing movement from a remote location to a first shear position for shearing an end of one of the strips and a second positio... | 11/27/1990 |
| 4971240 | Method and apparatus for forming heat exchanger tubes In a method and apparatus of forming a flat metal strip into a tube having generally flat side walls connected by bight portions along their opposite longitudinal edge portions comprising the steps of directing the strip between a pair of form rolls to be... | 11/20/1990 |
| 4949894 | Method and apparatus for forming ultra-small optical fiber cable assemblies A process and apparatus for fabricating an optical fiber cable core assembly having at least one optical fiber encapsulated with an ultra-small diameter metallic tube are described. The optical fiber cable core assembly is formed by passing a metal or met... | 08/21/1990 |
| 4905885 | Method and apparatus for forming and welding thin-wall tubing A method and apparatus for forming thin-wall tubing in a funnel die or with a series of sets of forming rollers. The tubing is then welded by a method and apparatus which includes simultaneous guiding of the both the inner and outer peripheries of the tub... | 03/06/1990 |
| 4896818 | Method of fabricating light-weight sections A method of fabricating light-weight sections consisting in uncoiling a strip (20), levelling it, slitting it in a zigzag course into at least two members (5, 6, 7), changing the path of travel of at least one member, matching the members (5, 6, 7) at the... | 01/30/1990 |
| 4854493 | Method and apparatus for cutting welding steel strips An apparatus, for butt-welding steel strips using a laser beam are disclosed, in which opposite ends of preceding and succeeding steel strips fed continuously are cut and the cut end edges thus formed are welded by butt welding using a laser. The cutting ... | 08/08/1989 |
| 4846392 | Continuously variable speed, die-drawing device and process for metal, composites, and the like, and compositions therefrom A die-drawing and/or extrusion device is described for producing uniform and tapered metal and composite tubes from flatstock and for reducing the size of solid stock and formed tubes therefrom, and lamination of compatable materials in one operation. The... | 07/11/1989 |
| 4824011 | Catalyst carrier body and method and apparatus for brazing the same A method for producing honeycomb-like brazed metallic catalyst carrier bodies, includes applying brazing material to thin structured metal sheets, subsequently heating areas to be brazed with laser beams producing brazed connections, and rolling or lamina... | 04/25/1989 |
| 4824744 | Method of making cell anode A method of making an anode, for an electrochemical cell, comprising an anode active ductile metal foil such as lithium and a metal foil substrate. To achieve proper adhesion between the metal foil substrate and the active metal foil the metal foil substr... | 04/25/1989 |
| 4819858 | Method of cladding a steel core rod with another metal A method of cladding a medium or high steel core rod with another metal includes a hot water quench at a temperature of about 160° F. to boiling temperature and preferably about 195° F. to 205° F. with a subsequent quench in water at a temperature belo... | 04/11/1989 |
| 4766953 | Shaped tube with elliptical cross-section for tubular heat exchangers and a method for their manufacture A shaped tube with an elliptical cross-section with a multichamber design for tubular heat exchangers is provided with at least two cross ribs passing through an interior space of the tube at a distance from one another. A method for making this tube prov... | 08/30/1988 |
| 4660754 | Process of forming welded tubing An improvement in a continuous rolling mill for forming flat steel strip into tubing. The improvement is a strip preparation station including upper and lower composite roller systems. Each system has end rollers which define a pass path for the strip. Th... | 04/28/1987 |
| 4651917 | Hermetically sealed optical fiber A hermetically sealed optical fiber tube and process of fabrication. The hermetically sealed tube is fabricated from rolled wires into shaped sectors such that when the sections are joined a cylindrical tube is formed having a sufficient inside diameter t... | 03/24/1987 |
| 4562630 | Method for the manufacture of heat exchanger elements The invention relates to a method and an apparatus for the manufacture of heat exchanger elements. A pair of strips of weldable material e.g. high-grade steel is welded together in such a way that on both sides a longitudinally extending weld seam is form... | 01/07/1986 |
| 4558695 | Method of manufacturing a heat exchanger A heat exchanger such as a radiator for an automotive engine is produced by fixing lengths of flattened tubes and corrugated fins to each other by brazing within a furnace. The flattened tube is formed by bending a strip and welding the opposing edges of ... | 12/17/1985 |
| 4521947 | Method for manufacturing a catalytic reactor carrier matrix A carrier matrix for use in the manufacture of a catalytic reactor for the purification of exhaust gases in an internal combustion engine of a motor vehicle is prepared by joining in wound form a corrugated steel sheet and a generally flat steel sheet, th... | 06/11/1985 |
| 4494291 | Apparatus for constructing cylindrical storage tanks An apparatus is provided for constructing cylindrical storage tanks from coiled strip steel. The apparatus carries and delivers the coiled strip steel circularly around the base of the tank. The strip steel is aligned and affixed with the overhead tank by... | 01/22/1985 |
| 4481698 | Chuted mixer forming method A method is provided of forming a circular chuted axially extending mixer from an originally circular scalloped, radially extending ring blank. The method utilizes a common mechanical press with male and female die portions. The female portion is pressed ... | 11/13/1984 |
| 4411381 | Honeycomb manufacturing method When conventional honeycomb structures are formed into cylinders, the inner wall made up of the inner edges of the individual honeycombs is circumferentially compressed and the outer wall made up of the outer edges of the honeycombs is circumferentially s... | 10/25/1983 |
| 4301348 | Process for producing large-sized rectangular or square steel pipes A process for producing large-sized square steel pipe includes the steps of continuously paying off steel plate from a roll of the same, removing strain from the plate while conveying the plate, and cutting the plate to predetermined lengths. The lengths ... | 11/17/1981 |
| 4295592 | Apparatus for joining and cladding pipe sections An apparatus for joining and cladding pipe sections has a cradle which holds two cylindrical pipe sections with their ends abutting axially and their axes coaxially horizontally aligned. A carriage is displaceable axially adjacent the cradle and carries a... | 10/20/1981 |
