| 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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| 04/01/1993 | WO1993005901A1 Material in the form of a strip, plate, foil, sheet, board or the like, which is provided with a stiffening corrugation or embossing |
| 04/01/1993 | WO1993005900A1 A press |
| 03/31/1993 | EP0534281A1 Method and device for forming sheet metal profiles |
| 03/31/1993 | EP0469150A4 Package of plates for tube-plate heat exchanger with diffuser-confuser channels and a rotor die for making the plates of said package |
| 03/30/1993 | US5197318 Metal forming method and apparatus |
| 03/18/1993 | DE4130673A1 Press to perforate and corrugate material strip - has advance rollers, with adjustable rotary positions, to place perforations relative to corrugations |
| 03/17/1993 | EP0472530B1 Folding machine, especially for joining the edges of metal sheets by folding |
| 02/16/1993 | US5186034 Air center machine with pitch adjustment |
| 02/09/1993 | US5184384 For joining the edges of two metal sheets |
| 01/19/1993 | US5179770 Machine and method for fabricating a sheet metal structure having a corrugated core |
| 01/07/1993 | WO1993000186A1 Fin forming disc |
| 01/05/1993 | US5176020 Method for manufacturing a corrugated fin and a shaping roll apparatus therefor |
| 12/15/1992 | US5170624 Composite catalytic converter |
| 12/15/1992 | CA1311405C Rolling mill machine for longitudinal bending of plate |
| 12/08/1992 | US5168923 Method of manufacturing a heat exchanger plate fin and fin so manufactured |
| 12/08/1992 | US5168741 Method for forming a leading edge cover for jet engine blades |
| 12/03/1992 | DE4123371C1 Simultaneous moulding of various depressions in metal foil - uses sequentially several partial punches from work centre towards periphery |
| 11/11/1992 | EP0512659A2 Corrugated thin metal foil strip |
| 11/07/1992 | CA2066127A1 Corrugated thin metal foil strip |
| 10/14/1992 | CN2118602U Pearls-like sheet |
| 10/14/1992 | CN2118601U Cold roll forging machine |
| 10/07/1992 | EP0507216A1 Composite catalytic converter |
| 10/06/1992 | CA2059330A1 Composite catalytic converter |
| 09/09/1992 | CN1018174B Step of passenger conveyor, method of manufacturing same and wavy metal plate |
| 09/02/1992 | CN2114520U Rolling shaping open type power head for multi head screw steel |
| 08/18/1992 | US5138861 Method and apparatus for cutting corrugated webs |
| 08/05/1992 | CN1017687B Machine for forming metal corrugated sheet and for welding each at its longitudinal ends |
| 07/10/1992 | CA2055314A1 Bellows pipe construction and method of manufacture |
| 07/08/1992 | EP0493469A1 A profiling device in plants for profiling metal-sheets or the like |
| 07/01/1992 | EP0339064B1 Rolling mill machine |
| 07/01/1992 | EP0339063B1 Rolling mill machine |
| 07/01/1992 | EP0261140B1 Machine for adjustable longitudinal corrugating of sheet materials |
| 06/24/1992 | EP0491658A1 Method and apparatus to deform a sheet material into a wave form |
| 06/21/1992 | CA2056905A1 Apparatus and product |
| 06/19/1992 | CA2057152A1 Method and device for corrugated deformation of a flat material sheet as well as a packaging component produced according to this method |
| 06/11/1992 | WO1992009766A1 Structural member and method of manufacture |
| 05/05/1992 | US5109688 Rolling mill |
| 04/28/1992 | US5107695 Roll former and/or cutter with quick automated tool |
| 04/16/1992 | WO1992005894A1 A profiling machine |
| 03/04/1992 | EP0472530A1 Folding machine, especially for joining the edges of metal sheets by folding. |
| 02/05/1992 | EP0469150A1 Package of plates for tube-plate heat exchanger with diffuser-confuser channels and a rotor die for making the plates of said package |
| 01/08/1992 | EP0465445A1 Roofing tile press |
| 12/24/1991 | US5074138 Expandable-contractible |
| 12/03/1991 | US5069053 Method and apparatus for cutting corrugated webs |
| 11/27/1991 | EP0318497B1 Machine for corrugating sheet metal or the like |
| 11/21/1991 | EP0457556A1 Rolling mill |
| 09/05/1991 | WO1991013309A1 Package of plates for tube-plate heat exchanger with diffuser-confuser channels and a rotor die for making the plates of said package |
| 07/26/1991 | CA2008730A1 Adjustable machine for longitudinal corrugating of sheet material |
| 06/25/1991 | US5025650 Apparatus for forming plates of irregular cross-sectional shape |
| 05/29/1991 | EP0428532A1 Machine for longitudinal corrugating of sheet material |
| 05/02/1991 | WO1991005623A1 Roll former and/or cutter with quick automated tool |
| 04/16/1991 | US5007271 Device and a method for embossing a metal foil |
| 04/16/1991 | US5007270 Web handling apparatus for metal ribbon stock |
| 04/10/1991 | CN1050508A Cold roll-formed structures and method and apparatus for producing same |
| 04/04/1991 | WO1991004114A1 A profiling device in plants for profiling metal-sheets or the like |
| 03/19/1991 | CA1281599C Arrangement for profiling forwardly indexed material webs |
| 02/05/1991 | US4989440 Device for moving a tool to exact shaping or working engagement with a strip of material having a repeated basic shape |
| 01/22/1991 | US4986105 Machine for corrugating sheet metal or the like |
| 01/15/1991 | US4984673 Step of passenger conveyor method of manufacturing same, and wavy metal plate |
| 12/04/1990 | CA1277184C Process and apparatus for the manufacture of radiator cooling fins |
| 11/22/1990 | DE3916156A1 Accordion pleats prodn. in lengths of material - involves top and bottom blade, with four cylinders and piston rods and guides |
| 11/21/1990 | WO1990014180A1 Folding machine, especially for jointing the edges of metal sheets by folding |
| 11/21/1990 | CA2058295A1 Folding machine especially for jointing the edges of metal sheets by folding |
| 10/16/1990 | CA1275201C Press forming sheet metal |
| 09/18/1990 | US4956987 Rotary cutter for cutting a continuous corrugated strip |
| 09/12/1990 | CN1009531B Cold roll-formed structures method and apparatus for producing same |
| 09/04/1990 | US4953378 Apparatus for cutting corrugated strip stock at variable lengths |
| 08/16/1990 | EP0381877A1 Corrugated fin forming apparatus |
| 08/16/1990 | DE3904175A1 Apparatus and method for the fine corrugation of sheet metal, and corrugated sheet metal |
| 07/18/1990 | EP0377944A1 Apparatus for cutting corrugated strip stock at variable lengths |
| 07/18/1990 | CN1043894A Method of making superlastically formed and diffusion bonded articles and articles so made |
| 06/19/1990 | US4934580 Method of making superplastically formed and diffusion bonded articles and the articles so made |
| 06/19/1990 | US4934169 Method for moving a tool to exact shaping or working engagement with a strip of material having a repeated basic shape |
| 06/05/1990 | US4930329 Installation for producing metal girders |
| 04/24/1990 | CA1268023A1 Apparatus for forming corrugated fins for heat exchangers |
| 02/27/1990 | US4903516 Rolling mill machine for longitudinal bending of plate |
| 02/13/1990 | US4899568 Rolling mill machine for longitudinal bending of plate |
| 01/31/1990 | EP0353081A1 Rotary cutter for cutting a continuous corrugated strip |
| 01/11/1990 | WO1990000096A1 Machine for longitudinal corrugating of sheet material |
| 12/26/1989 | US4888972 Process and apparatus for the manufacture of radiator cooling fins |
| 12/19/1989 | US4888073 Evacuated insulation and a method of manufacturing same |
| 12/19/1989 | EP0248845A4 Press forming sheet metal. |
| 11/29/1989 | CN1037490A Step of passenger conveyor, method of manufacturing same and wavy metal plate |
| 11/21/1989 | US4881307 Expansion of sheet materials |
| 11/08/1989 | CN1005689B Hot rolling process for h-shaped steel beam with corrugated web |
| 11/02/1989 | EP0339064A1 Rolling mill machine. |
| 11/02/1989 | EP0339063A1 Rolling mill machine. |
| 11/02/1989 | EP0072859B1 Panel and panel assembly |
| 10/24/1989 | US4875354 Machine for adjustable longitudinal corrugating of sheet materials |
| 09/26/1989 | CA1260655A1 Porous metal article and method of making |
| 06/21/1989 | CN2039605U Decorative sheet of metal engraved designs |
| 06/20/1989 | US4840054 Arrangement for profiling forwardly indexed material webs |
| 06/13/1989 | US4838067 Corrosion resistant corrugated metal foil for use in wound and folded honeycomb cores |
| 06/13/1989 | US4838065 Corrugated fin forming apparatus |
| 06/07/1989 | EP0318497A1 Machine for corrugating sheet metal or the like. |
| 06/06/1989 | US4837388 Evacuated insulation and a method of manufacturing same |
| 05/31/1989 | EP0317923A2 Against deflection stabilized material |
| 05/03/1989 | EP0313760A2 Apparatus for making structural beams or the like |
| 04/25/1989 | US4823583 Particulate trap |
| 04/20/1989 | WO1989003261A1 Rolling mill machine |