| Patents for B21D 13 - Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form (2,021) |
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| 02/18/2004 | CN1138626C Forming method for belt type film |
| 02/11/2004 | EP1126939B1 Methods and apparatus for forming a beaded can end |
| 02/05/2004 | WO2004011170A1 Method and device for producing a profiled sheet metal material, sheet metal material profiled in a corrugated manner, metallic composite body and catalyst |
| 01/22/2004 | US20040011516 Louver fin and corrugation cutter for forming louver fin |
| 01/08/2004 | WO2004003453A2 Fin array for heat transfer assemblies and method of making same |
| 01/08/2004 | WO2004002646A1 Method for forming a metallic flat material, production method for a composite material and devices for carrying out said methods |
| 01/07/2004 | CN1465512A Container side wall structure and working method thereof |
| 01/02/2004 | EP1375023A1 Method of deforming a metallic flat material, method of production of a composite material as well as apparatuses for carrying out these methods |
| 01/02/2004 | EP1373692A1 Method for producing a one-piece, structured metal sheet comprising a cavity, metal sheet and honeycomb body |
| 12/31/2003 | WO2004001248A2 Splined clutch hub and method of making same |
| 12/31/2003 | CN1133064C Method and machine for forming heat-radiating fins and its finished products |
| 12/24/2003 | CN1131772C 一种柔性的波纹状多层金属薄片防护屏及其制造方法 A flexible corrugated multilayer metal foil shield and its manufacturing method |
| 12/16/2003 | US6662615 Method to reduce air center middle margin turnaround for folded tube applications |
| 12/16/2003 | US6662614 Tool and its finishing method of surface for center fin member of air conditioning apparatus for vehicle |
| 12/11/2003 | DE29924494U1 Can forming method for manufacturing drinks containers, uses a workpiece formed from a single piece of material and formed into a can end using a punch assembly and a draw pad |
| 12/10/2003 | EP1368187A1 Light building board |
| 12/10/2003 | EP1105230B1 Method for forming sheet metal strip |
| 12/09/2003 | US6660403 Flexible corrugated multilayer metal foil shields and method of making |
| 12/04/2003 | DE10235767C1 Honeycomb structure, for IC motor exhaust system, has corrugated sheets with zones of different sheet thickness, with overlapping transit to give constant corrugation peaks and valleys without weakness |
| 12/02/2003 | US6655184 Warm/hot corrugation machine and method for corrugating low-ductility foils |
| 11/26/2003 | CN1128711C Shaped multiplayer metal foil shield structures and method of making |
| 11/12/2003 | CN1454725A Process and apparatus of intelligent production of spiral reinforcement |
| 10/29/2003 | EP1356877A1 Method and form roll for making a folded fin air center having a reduced height middle margin turnaround for folded tube applications |
| 10/23/2003 | US20030196467 Panel crimping machine having a gap adjustment mechanism |
| 10/23/2003 | US20030196324 Method to reduce air center middle margin turnaround for folded tube applications |
| 10/08/2003 | CN1446647A Extrusion molding appts. |
| 09/24/2003 | EP1346782A1 Press-forming apparatus |
| 09/24/2003 | CN1121940C Embosser |
| 09/18/2003 | WO2003076095A1 Profiled steel decking sheets |
| 09/18/2003 | US20030172709 Press-forming apparatus |
| 09/09/2003 | US6615471 Method of locating the blade holders in a fin folding machine |
| 09/03/2003 | EP1340557A2 Method for removing strain from press-formed workpiece, and forming press |
| 08/27/2003 | EP1338352A1 Tool for forming undulated heat exhange surfaces for heat exchangers by cold folding a sheet and method for making the forming profiles of such a tool |
| 08/21/2003 | WO2003068430A1 Sheetmetal forming method |
| 08/20/2003 | CN1436617A Method for eliminating strain of spun work and forming press |
| 08/07/2003 | WO2003064072A1 Metal sheet for building purposes, and method and apparatus for making such sheets |
| 08/07/2003 | US20030145643 Method for removing strain from press-formed workpiece, and forming press |
| 08/06/2003 | CN1117213C Method for producing honeycombedbody by using hard sheet metal |
| 07/30/2003 | EP1331048A1 Metal sheet for building purposes, and method and apparatus for making such sheets |
| 07/22/2003 | US6594896 Method for making corrugated fins |
| 07/17/2003 | US20030131646 Component with locally limmited reinforcement regions and method for production thereof |
| 07/15/2003 | US6591647 Method for manufacturing a corrugated fin for a plate-type heat exchanger and device for implementing such a method |
| 07/09/2003 | EP1324841A1 Method and device for bending a line of material |
| 07/02/2003 | EP1110016A4 Gasket for heat exchanger and method and apparatus for manufacturing same |
| 07/02/2003 | CN1112993C Device for embossing foil, its application, mfg. and operating method thereof |
| 06/18/2003 | CN1111449C Method and device for producing structured sheet metal |
| 05/22/2003 | WO2003041887A1 Method of forming metal sheet |
| 05/22/2003 | US20030094030 Warm/hot corrugation machine and method for corrugating low-ductility foils |
| 05/21/2003 | EP1030153B1 Fin for a one-piece heat exchanger and method of manufacturing the fin |
| 05/20/2003 | US6564607 Method and device for cutting a sheet material into strips and a corrugated-fin strips forming apparatus using the device |
| 05/06/2003 | US6557389 Machine for corrugating metal foils |
| 05/01/2003 | WO2003035296A1 Contour roll former in particular for extruded metal profiles |
| 04/15/2003 | US6546775 Panel crimping machine having a gap adjustment mechanism |
| 04/15/2003 | US6546774 Method of making a lanced and offset fin |
| 04/09/2003 | EP1300204A2 Warm/hot corrugation machine and method for corrugating low-ductility foils |
| 04/09/2003 | EP1300203A2 Machine for corrugating metal foils |
| 04/09/2003 | EP0881056B1 Thermal transfer roll for manufacture of laminate plate, method of heating metallic sheet by means of thermal transfer roll, and laminate plate manufacturing apparatus provided with thermal transfer roll |
| 04/08/2003 | USRE38064 Machine and method for forming arched roof vertical wall self supporting metal buildings |
| 03/26/2003 | CN2541078Y One-step special arrangement for highway guard plate |
| 03/13/2003 | US20030047964 Vehicle bed edge and manufacturing process |
| 03/06/2003 | WO2003018228A1 Method of making a lanced and offset fin |
| 03/06/2003 | US20030041640 Method of making a lanced and offset fin |
| 03/06/2003 | CA2452771A1 Method of making a lanced and offset fin |
| 03/05/2003 | EP1289034A1 Thin, meshy porous body and method of manufacturing the porous body |
| 03/04/2003 | US6526797 Negative-angle forming die |
| 02/20/2003 | WO2003013752A1 Structures having enhanced slip-resistant surfaces and associated methods |
| 02/12/2003 | CN1396014A Technology for making head plate of tabular concrete pile by cold bending method |
| 01/22/2003 | EP1276589A1 Vehicle bed edge and manufacturing process |
| 01/22/2003 | EP1276574A2 High thermal efficiency heat exchanger, partially corrugated sheet metal for heat exchangers, plant and procedure for obtaining said partially corrugated sheet metal |
| 01/09/2003 | CA2650905A1 A panel crimping machine |
| 01/07/2003 | US6502447 Device and method for manufacturing turbulators for use in compact heat exchangers |
| 01/01/2003 | CN1387964A Method and apparatus for producing structural filler corrugated pipe and corresponding fluid treatment eqaipment |
| 12/24/2002 | US6497131 Apparatus for stepwise bending of sheet metal pieces or similar material |
| 12/24/2002 | US6497130 Method for corrugating a metal foil and packages of such foil |
| 12/11/2002 | CN1383942A Punching method and apparatus of V-ribbed steel net |
| 12/10/2002 | US6490778 Multiple uneven plate, multiple uneven plate bending mold, multiple uneven plate manufacturing method and separator using multiple uneven plate |
| 11/14/2002 | US20020168562 Multiple uneven plate, multiple uneven plate bending mold, multiple uneven plate manufacturing method and separator using multiple uneven plate |
| 11/14/2002 | US20020166359 Sheet metal forming machine |
| 11/06/2002 | EP1253983A1 Component with locally limited reinforcement regions and method for production thereof |
| 10/30/2002 | EP0942793B1 Apparatus for manufacturing roofing or cladding panels |
| 10/22/2002 | US6467169 Process for producing a honeycomb body using a hard metal sheet and semi-manufactured honeycomb body |
| 10/17/2002 | WO2002081879A1 Method for producing a one-piece, structured metal sheet comprising a cavity, metal sheet and honeycomb body |
| 10/17/2002 | US20020150742 Flexible corrugated multilayer metal foil shields and method of making |
| 10/17/2002 | DE10210613A1 Regentropfenerfassungsgerät und -verfahren Raindrop detection apparatus and method |
| 10/17/2002 | DE10210579A1 Verfahren zur Herstellung von gewellten Rippen A process for the production of corrugated fins |
| 10/17/2002 | DE10117086A1 Verfahren zur Herstellung einer einstückigen, strukturierten Blechfolie mit einem Loch, Blechfolie und Wabenkörper A process for preparing a one-piece, structured metal foil with a hole, the sheet metal foil and the honeycomb body |
| 10/09/2002 | CN1373693A Method and device for producing corrugated sheet that is provided with corrugation |
| 10/09/2002 | CN1373015A Negative angle shaping mould |
| 10/08/2002 | US6461559 Method for shaping strip-like films |
| 09/26/2002 | US20020134494 Method and device for producing a corrugated sheet having a corrugation |
| 09/24/2002 | US6453711 Flat turbulator for a tube and method of making same |
| 09/19/2002 | WO2002072294A1 Device and method for press forming |
| 09/18/2002 | CN1091011C Method and device for making corrugated sheet provided with microstructure transverse to corrugation |
| 09/17/2002 | US6451447 Shaped multilayer metal foil shield structures and method of making |
| 09/12/2002 | US20020125000 Louvered fin for a heat exchanger |
| 09/12/2002 | US20020124619 Negative-angle forming die |
| 09/12/2002 | US20020124404 Method for making corrugated fins |
| 09/11/2002 | EP1238722A2 Negative-angle forming die |
| 09/03/2002 | US6442836 Method of making folded fin |
| 08/28/2002 | EP0879103B1 Method for manufacturing a corrugated metal strip |