| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 228144000 | And edge joining of one piece blank or strip | 6 |
| 20080230586 | Method of Manufacturing Electric Resistance Welding Pipes Having Excellent Characterization of Welded Seams - A method of efficiently manufacturing electric resistance welding pipes having excellent characterization of welded seams is provided, by which each lateral edge of a rounded strip immediately before electric resistance welding is securely shaped with desired tapering flexibly in response to change in strip thickness, so that welding quality may be kept to be excellent. A method of manufacturing electric resistance welding pipes, in which a strip is subjected to forming, then edges thereof are formed to substantially face each other, and then the edges are subjected to electric resistance welding to form a pipe, wherein an edge and an edge opposed thereto at one of an upper-surface side and a lower-surface side of the strip are shaped with tapering before the forming by means of cutting or shaving, or finpass forming. | 09-25-2008 |
| 20080290140 | Welding Hollow Flange Members - An apparatus for in-line ERW welding of hollow flange steel members in a cold forming mill comprises a seem roll stand ( | 11-27-2008 |
| 20150102088 | METHOD OF PRODUCING METALLIC COMPOSITE PIPES - A method is provided for producing a pipe from a band which has a layer of a first metal and a layer of a second metal, the layers being metallurgically bonded to one another over the entire length of the band. Along the two longitudinal edges of the band, the first metal is removed from the second metal in strips which run over the entire length of the band. The band is formed into the open-seam pipe with the first metal located on the outside, and the abutting edges of the layer of the second metal are welded to one another forming a pipe which is closed all the way round. In the region of the weld seam, a layer of the first metal is then deposited on the second metal to produce a pipe with a layer of the first metal which is closed all the way round. | 04-16-2015 |
| 228145000 | To form helically seamed tube | 1 |
| 20100288822 | TUBE - A tube, which is especially employed for making the main frame tube of a bicycle, is fabricated by means of a 6-4Ti alloy sheet being fed to the forming mold with a feed device, being cold-rolled with the stamping block, winding the circumferential side of the forming mold as a tube blank with a spiral clearance extending along the tube blank, and welding the tube blank at the spiral clearance as a seam of the finished tube. In this way, the fabricated tube has an advantage of providing a high strength to resist being deformed easily. | 11-18-2010 |
| 228146000 | Progressively bending and joining | 1 |
| 228147000 | Forming indefinite length member | 1 |
| 228148000 | Sheathing, cable or wire | 1 |
| 20110036900 | Manufacturing method of conducting wire terminal - A method of manufacturing a conducting wire terminal includes the steps of: preparing a strip tube of a predetermined length; boring both ends of the strip tube separately, such that a body is formed between both ends of the strip tube and has a diameter smaller than both ends of the strip tube, and the copper sleeve is accommodated in the body; and compressing an intersection of both ends of the strip tube and the body, such that a circular tapered neck is formed at the intersection of both ends of the strip tube and the body, and a circular slanting guide surface is formed separately on opposite internal surface of each tapered neck of the strip tube. | 02-17-2011 |
| 228149000 | Uniform thickness thin blank or strip | 1 |
| 228150000 | Elongated seam | 1 |
| 20090114703 | Method and device for producing a longitudinally welded hollow profile - A method for producing a longitudinally welded hollow profile from a sheet metal blank having defined longitudinal edges, in which the sheet metal blank is initially preformed into an open seam profile with the aid of at least two tool parts allows for the economical production of accurately formed hollow profiles. This is achieved in that to produce the open seam profile, the sheet metal blank, by a change in the relative position of the tools parts, is placed freely around a mandrel positioned between the tool parts and extending in the longitudinal direction of the sheet metal blank, the outer shape of which mandrel determines the inner shape of the hollow profile to be produced, and in that the shaping of the open seam profile obtained is then completed in one or more stages in each case by a further change of the relative position of the tool parts. | 05-07-2009 |
