| 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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| 05/26/1999 | CN2320350Y Movable small corrugated sheet metal shaping machine |
| 05/05/1999 | CN1215636A Making household articles using metal sheet |
| 04/14/1999 | EP0908574A2 Panel assembly and panel forming apparatus |
| 04/13/1999 | US5893395 Formed ragglestick |
| 04/08/1999 | WO1999016986A1 Method and apparatus for the manufacture of roof cladding elements |
| 03/24/1999 | CN2311325Y Swirl crotch figure forming machine for metal decorative products |
| 03/24/1999 | CN2311324Y Metal plate forming press |
| 03/17/1999 | CN2310637Y Roller device for corrugated plate and thermal insulation corrugated plate shaper |
| 02/24/1999 | CN1209181A Structural profile |
| 01/20/1999 | EP0891234A1 Rigid thin sheet material and method of making it |
| 01/12/1999 | US5858418 Machine for reprofiling corrugated materials |
| 12/23/1998 | EP0885335A1 Metal panel structures |
| 12/17/1998 | WO1998057112A1 Air preheater heat transfer elements and method of manufacture |
| 12/17/1998 | WO1998056576A1 Flexible corrugated multilayer metal foil shields and method of making |
| 12/17/1998 | WO1998056573A1 Shaped multilayer metal foil shield structures and method of making |
| 12/17/1998 | CA2292590A1 Air preheater heat transfer elements and method of manufacture |
| 12/10/1998 | DE19825762A1 Geformte mehrschichtige Metallfolien-Abschirmstrukturen und Verfahren zu ihrer Herstellung Shaped multilayer metal foil shield structures and processes for their preparation |
| 12/10/1998 | DE19723828A1 Heat shield manufacturing process |
| 12/02/1998 | EP0881056A1 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 |
| 11/25/1998 | EP0879103A1 Metal strip |
| 10/15/1998 | WO1998045064A1 Cold-forming |
| 10/15/1998 | CA2285656A1 Cold-forming |
| 10/13/1998 | US5819578 Process and appartus for producing reinforcement profiles on sheet metal panels |
| 10/13/1998 | US5819575 Manufacturing apparatus of a corrugated fin and method of manufacturing the same |
| 10/07/1998 | EP0868580A1 Structural profile |
| 09/10/1998 | DE19711103A1 Components deforming method by magnetic structuring |
| 09/08/1998 | US5802901 Process for correcting the distortion of electrolytic seed plates |
| 09/03/1998 | WO1998037992A1 Method for forming sheet metal strip |
| 08/19/1998 | CN1190617A Mechine for wave-shapd material reforming |
| 08/18/1998 | US5794484 Universally making waved parts |
| 08/18/1998 | US5794483 Angled blade tooling for a fin machine |
| 08/12/1998 | EP0674551B1 Sheet material, method of producing same and rolls for use in the method |
| 07/30/1998 | WO1998032553A1 Method and apparatus for creating a fold line on corrugated sheet transversely of the corrugations |
| 07/22/1998 | CN2286435Y Two roll type machine for rolling corrugated sheet material |
| 07/08/1998 | CN1186731A Method for producing mould of rubber gloves |
| 06/18/1998 | DE19755342A1 Method for holding and forming a workpiece |
| 06/11/1998 | WO1998024568A1 Apparatus for manufacturing roofing or cladding panels |
| 06/10/1998 | EP0794843A4 Fin folding machine for corrugating sheet material |
| 06/10/1998 | CN1184028A Corrugation forming machine |
| 06/02/1998 | US5758535 Method of producing corrugated fins |
| 05/27/1998 | EP0844071A1 Corrugating device |
| 05/20/1998 | EP0841999A1 Roll forming machine for an indeterminate length metal roof panel |
| 05/13/1998 | EP0841154A1 Machine for reprofiling corrugated products |
| 05/07/1998 | WO1998018557A1 Method and device for producing structured sheet metal |
| 05/07/1998 | DE19643934A1 Verfahren und Vorrichtung zum Herstellen strukturierter Metallbleche Method and device for producing structured metal sheets |
| 04/16/1998 | WO1998015368A1 Method and apparatus for skew corrugating foil |
| 04/07/1998 | US5735158 Method and apparatus for skew corrugating foil |
| 03/31/1998 | US5732584 Method and apparatus for roll forming convoluted springs |
| 03/12/1998 | WO1998009745A1 Method and device for making a metal corrugated sheet provided with a microstructure transverse to the corrugation |
| 03/12/1998 | WO1998009741A1 Self-dispersing facilitating fluid forming roll |
| 03/12/1998 | DE19636367A1 Verfahren und Vorrichtungen zum Herstellen eines Metallbleches mit einer Wellung und einer quer dazu liegenden Mikrostruktur A method and apparatus for manufacturing a metal sheet with a corrugation and a transverse thereto microstructure |
| 03/05/1998 | WO1998008632A1 A method and apparatus for roll forming convoluted springs |
| 03/03/1998 | US5722145 For achieving proper placement/alignment of tools in a press fin machine |
| 02/19/1998 | WO1998006567A1 Forming a composite panel |
| 02/19/1998 | WO1998006517A1 Method of forming a metal sheet and panel comprising such a sheet |
| 02/18/1998 | CN2274537Y Steel net press rolling apparatus |
| 01/14/1998 | EP0659109B1 A sheet metal profile and a method of manufacturing the profile, whereby an initial local deformation is larger than the final |
| 01/14/1998 | CN1169922A Metal ornament and its application method |
| 12/09/1997 | US5694803 Fin folding machine for corrugating sheet material |
| 11/26/1997 | EP0808676A1 Method for producing an easy-open can lid and easy-open can lid |
| 11/25/1997 | US5689990 Sheet material, method of producing same and rolls for use in the method |
| 11/25/1997 | US5689989 Method for the zigzag-like folding of a strip-like foil |
| 11/19/1997 | EP0807497A1 An operating method for a working area comprising a robot enslaved to a bending press for working metal sheets |
| 10/21/1997 | US5679106 Roller for forming corrugated fin |
| 10/02/1997 | WO1997035674A1 Rigid thin sheet material and method of making it |
| 09/17/1997 | EP0794843A1 Fin folding machine for corrugating sheet material |
| 09/12/1997 | WO1997033053A1 Metal panel structures |
| 09/09/1997 | US5664451 Roll forming machine for an indeterminate length metal roof panel |
| 09/09/1997 | US5664450 Self-dispersing facilitating fluid forming roll |
| 08/27/1997 | CN2260673Y Mould for making anti-fake glass bottle cover |
| 08/07/1997 | DE19603974A1 Forming reinforcing bulges in bodies or continuous materials |
| 07/03/1997 | WO1997023694A1 Structural profile |
| 07/02/1997 | EP0711399A4 Radiator tube and method and apparatus for forming same |
| 06/24/1997 | US5640871 Fin height measurement for a fin mill machine |
| 06/24/1997 | US5640870 Tension control of a fin forming device |
| 05/29/1997 | WO1997018910A1 Method and device to provide a sheet metal joint |
| 05/28/1997 | EP0775540A1 Fin mill machine |
| 05/28/1997 | EP0775539A1 Fin height measurement device and a fin mill machine incorporating such a device |
| 05/27/1997 | US5632180 Method of and apparatus for producing corrugated sheet with plane-parallel outer edge surfaces |
| 05/27/1997 | US5632178 Method and apparatus for forming a T-shaped slot in a sheet material |
| 05/15/1997 | WO1997017148A1 Method and apparatus for making heat exchanger fins |
| 05/13/1997 | US5628221 For forming strip stock into corrugated fin material |
| 05/06/1997 | US5626051 Process and device for forming a corrugated metal sheet and corrugated metal sheet obtained by this process |
| 04/09/1997 | CN1146964A Method for zigzag-like folding of striplike foil |
| 04/03/1997 | DE19621942C1 Finely structured vehicle structural component mfg. process |
| 04/02/1997 | EP0765701A1 Method for making flat tubes for heat exchangers, device and flat tube |
| 04/02/1997 | EP0637273A4 Machine and method for forming arched roof vertical wall self supporting metal buildings and building constructions. |
| 03/27/1997 | CA2178513A1 Method of manufacturing flattened tubes for heat exchangers, apparatus and flattened tube |
| 02/26/1997 | EP0759139A1 Heat exchanger and method for its manufacture |
| 02/20/1997 | WO1997006001A1 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 |
| 02/13/1997 | WO1997004893A1 Roll forming machine for an indeterminate length metal roof panel |
| 02/05/1997 | CN1141867A Apparatus for production of oblique girdle of foldable material |
| 01/08/1997 | CN2244438Y Rolling imprinter |
| 01/08/1997 | CN1139597A Rolling equipment and method for compensator wave shape expansion joint |
| 12/31/1996 | US5588319 Method and apparatus for making heat exchanger fins |
| 12/27/1996 | WO1996041691A1 Metal strip |
| 12/21/1996 | CA2152213A1 Shaping machine |
| 12/18/1996 | CN1137952A Process for correcting distorsion of electrolytic seed plates |
| 12/17/1996 | US5584198 Apparatus and method for forming metal building panels |
| 12/11/1996 | CN2242144Y Machine for forming stairs-like corrugated sheet |