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| Number | Title | Issue Date |
| 7423233 | Butt welding device and butt welding method A butt welding apparatus and a butt welding method where end faces of at least one plate member to be welded are butted to each other to form a butt portion, and butt welding can be performed on respective plate members which have various thickness sizes on both sid... | 09/09/2008 |
| 7307235 | Butt welding apparatus, butt welding method, and butt welded product A butt welding apparatus, a butt welding method, and a product manufactured by the butt welding method involves two electrode rollers disposed on both the front and back sides of a thick sheet member and a thin sheet member whose end surfaces are butted. The electro... | 12/11/2007 |
| 6660956 | Method of and apparatus for monitoring a ball forming process A method of monitoring a ball forming process in a wire bonder. A glow discharge parameter between an electrode on the wire bonder and an end of a wire mounted on the wire bonder on which the ball is being formed is monitored. The monitored parameter is c... | 12/09/2003 |
| 6538228 | Method and device for welding A welding device for butt welding of bars as well as blooms, slabs, or billets produced by continuous casting, includes a roller conveyor for simultaneous conveying of at least two bars along a rolling line, jaws for gripping the bars, and electric power ... | 03/25/2003 |
| 5614112 | Installation for positioning edge to edge and welding by means of a laser beam at least two sheet blanks An installation for positioning edge to edge and welding by means of a laser beam at least two sheet blanks comprises means for supporting and positioning a first sheet blank in a horizontal reference plane, means for positioning the edge to be welded of ... | 03/25/1997 |
| 5260541 | Crop shear apparatus and crop shear equipment In a crop shear apparatus disposed in a conveyance passage in which band steel is conveyed from a first rolling mill to a second rolling mill of hot rolling equipment, the crop shear apparatus including: at least one shear blade for shearing the band stee... | 11/09/1993 |
| 5042711 | Multi-gauge bondings A multi-gauge composite metal strip is produced from a plurality of individual metal strips of different thicknesses. The individual strips are heated, passed through an oxide reducing atmosphere and are then directed between a pair of work rolls with the... | 08/27/1991 |
| 4912295 | Butt welding method A butt welding method is disclosed, which comprises abutting a pair of steel sheets and welding the abutting surfaces by opposing electrodes while preventing gaps from developing between the widthwise outer portions of said steel sheets by suppressing rot... | 03/27/1990 |
| 4733815 | Process for guiding sheets to be butt-welded together and apparatus with means for conveying and guiding sheets or strips to be butt-welded together The invention relates to a process for guiding sheets or strips to be butt-welded together and to an apparatus with means for conveying and guiding sheets or strips to be butt-welded together. The sheets or strips, lying laterally next to one another, eac... | 03/29/1988 |
| 4471203 | Program control device for controlling flash butt welding process Disclosed are welding current pick-ups which are switched into welding circuits. Outputs of these pick-ups are connected to inputs of a logical coincidence unit having its output connected to a control input of a welding program control unit whose output ... | 09/11/1984 |
| 4136272 | Method of manufacturing heat exchange panels Method for manufacturing heat exchange panels each comprising a plurality of sub-panels of finite length, each sub-panel comprising a metal tube welded to a metal sheet except at the end portions thereof which are secured to headers in fluid-tight relatio... | 01/23/1979 |
| 4112566 | Method of manufacturing heat exchange panels Methods for manufacturing heat exchange panels each comprising metal tubes of finite length welded to a metal sheet except at the end portions of the tubes which are secured to headers in fluid-tight relation thereto, in which methods the metal sheet, hav... | 09/12/1978 |
