| 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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| 11/20/1996 | EP0697925A4 Microprocessor controlled apparatus and method for forming metal building panels |
| 10/31/1996 | WO1996034221A1 Formed ragglestick |
| 10/30/1996 | EP0739847A1 Method for zig-zag pleating of a strip-like sheet |
| 10/30/1996 | EP0739846A1 Device for manufacturing angular pleated sheet material |
| 10/26/1996 | CA2174835A1 Apparatus for the manufacture of an obliquely pleated material strip |
| 10/10/1996 | DE19512533A1 Method for forming thin material webs used in sandwich structure for garage doors, containers, aircraft, etc. |
| 10/09/1996 | EP0736344A1 Process and apparatus for producing reinforcement profiles on sheet metal panels |
| 10/08/1996 | US5561999 Ring forming method |
| 10/02/1996 | CN1132552A Radiator tube and method and appts. for forming same |
| 10/01/1996 | US5560424 Inner fin and manufacturing method of the same |
| 09/24/1996 | CA2171809A1 Process and apparatus for producing reinforcement profiles on sheet metal panels |
| 08/28/1996 | CN2233793Y Rolling wheel device of double-purpose moulding machine for corrugated plate and thermal-insulated corrugated plate |
| 06/12/1996 | EP0604550B1 Material in the form of a strip, plate, foil, sheet, board or the like, which is provided with a stiffening corrugation or embossing |
| 06/06/1996 | WO1996016753A1 Fin folding machine for corrugating sheet material |
| 06/06/1996 | CA2202262A1 Fin folding machine for corrugating sheet material |
| 06/05/1996 | CN1123718A Process for making corrugated plate directly from coiled steel |
| 05/15/1996 | EP0711399A1 Radiator tube and method and apparatus for forming same |
| 05/08/1996 | CN1122114A Microprocessor controlled apparatus and method for forming metal building panels |
| 04/23/1996 | US5509288 Forming roller for corrugated fin |
| 04/03/1996 | CN2223659Y Cold bent shaped steel with lateral rib |
| 03/26/1996 | US5501912 Strip material |
| 02/28/1996 | EP0697925A1 Microprocessor controlled apparatus and method for forming metal building panels |
| 02/20/1996 | US5491997 Apparatus and method for forming a heat exchanger inner fin having cross-flow passages |
| 02/06/1996 | US5489463 Non-stretch bending of sheet material to form cyclically variable cross-section members |
| 01/16/1996 | US5483837 Bale tie formed with marcelled portion, package comprising compressed bale and such tie, and related forming apparatus |
| 01/10/1996 | CN2216873Y Corrugated sheet double peak forming mould |
| 12/26/1995 | US5477724 Apparatus for forming bale tie for package |
| 12/13/1995 | CN2214852Y One-time forming machine for interrupted wave plate |
| 11/28/1995 | US5469674 Arched roof vertical wall self supporting metal building constructions |
| 11/16/1995 | WO1995030867A1 Heat exchanger and method for its manufacture |
| 11/08/1995 | EP0680793A1 Method and apparatus for making a building structure form with a flat stiffened plate part |
| 10/04/1995 | EP0674551A1 Sheet material, method of producing same and rolls for use in the method |
| 10/03/1995 | US5454286 Cutter for cutting a continuous corrugated strip |
| 08/09/1995 | EP0665776A1 Manufacturing line for shaping steel strips |
| 07/26/1995 | EP0664167A1 Method and apparatus for making heat exchanger fins |
| 06/28/1995 | EP0659109A1 A sheet metal profile and a method of manufacturing the profile, whereby an initial local deformation is larger than the final |
| 06/14/1995 | CN2200492Y Improved structure of metal corrugated board |
| 05/24/1995 | EP0654312A1 Device and method for the forming of corrugated sheets having flat parallel marginal portions |
| 05/23/1995 | US5417320 Bale tie formed with marcelled portions and package comprising compressed bale and such tie |
| 04/19/1995 | EP0648555A1 Forming of intermetallic materials with conventional sheet metal equipment |
| 03/30/1995 | WO1995008409A1 Roll-forming cold worked sheet metal articles |
| 03/30/1995 | WO1995005571A3 Radiator tube and method and apparatus for forming same |
| 03/08/1995 | EP0641615A1 Forming roller for corrugated fin |
| 02/23/1995 | WO1995005571A2 Radiator tube and method and apparatus for forming same |
| 02/23/1995 | CA2168746A1 Radiator tube and method and apparatus for forming same |
| 02/15/1995 | CN2189502Y Corrugation filling straight-tooth roller press |
| 02/08/1995 | EP0637273A1 Machine and method for forming arched roof vertical wall self supporting metal buildings and building constructions |
| 01/04/1995 | CN1027302C Apparatus and method of manufacturing an axial flow filter |
| 01/03/1995 | US5379019 Apparatus for embossing superconducting tape for use in a superconducting magnet |
| 12/14/1994 | EP0627967A1 Method and apparatus for flattening portions of a corrugated plate |
| 11/10/1994 | WO1994025195A1 Microprocessor controlled apparatus and method for forming metal building panels |
| 11/01/1994 | US5359871 Microprocessor controlled apparatus and method for forming metal building panels |
| 10/12/1994 | CN1093331A Bale tie formed with marcelled portion, package comprising compressed bale and such tie, and related forming apparatus |
| 09/27/1994 | US5350012 Rotary fin machine |
| 08/24/1994 | EP0611706A1 Bale tie formed with marcelled portion, package comprising compressed bale and such tie, and related forming apparatus |
| 08/17/1994 | CA2113880A1 Bale tie formed with marcelled portion, package comprising compressed bale and such tie, and related forming apparatus |
| 08/16/1994 | US5337592 Non-stretch bending of sheet material to form cyclically variable cross-section members |
| 08/16/1994 | US5337591 Machine and method of making duct coupling |
| 08/11/1994 | DE4303300A1 Forming method for spinning sheet-metal shaped parts |
| 08/09/1994 | US5335414 Heat transfer cell and manufacturing apparatus |
| 08/02/1994 | US5333482 Method and apparatus for flattening portions of a corrugated plate |
| 07/06/1994 | EP0604550A1 Material in the form of a strip, plate, foil, sheet, board or the like, which is provided with a stiffening corrugation or embossing. |
| 06/09/1994 | WO1994012294A1 Sheet material, method of producing same and rolls for use in the method |
| 05/11/1994 | WO1994009927A1 Method and apparatus for flattening portions of a corrugated plate |
| 05/11/1994 | WO1994009925A1 Manufacturing line for shaping steel strips |
| 05/11/1994 | CA2123510A1 Method and apparatus for flattening portions of a corrugated plate |
| 04/19/1994 | US5303572 Panel bending apparatus and method |
| 04/19/1994 | CA1328579C Machine for adjustable longitudinal corrugating of sheet materials |
| 04/14/1994 | WO1994007623A1 Setting device for shape rolling mill |
| 04/13/1994 | CN2161390Y Forming device for metal core |
| 03/22/1994 | US5295303 Method of making a corrugated fin |
| 02/09/1994 | EP0581985A1 Profile rolling machine |
| 02/01/1994 | US5282307 Metallic ornamental plate manufacturing method |
| 01/26/1994 | CN1081127A Machine and method for forming arched roof vertical wall self supporting metal buildings and building constructions |
| 01/11/1994 | US5277052 Apparatus for forming a leading edge cover for jet engine blades |
| 12/29/1993 | CN2150939Y Two rolls make-up machine |
| 12/28/1993 | CA1325535C Rolling mill machine for longitudinal bending of plate |
| 12/15/1993 | CN1023084C Products of cold roll-formed technology |
| 11/09/1993 | US5259228 Rolling mill |
| 10/28/1993 | WO1993020962A1 Machine and method for forming arched roof vertical wall self supporting metal buildings and building constructions |
| 10/26/1993 | US5256218 Forming of intermetallic materials with conventional sheet metal equipment |
| 10/05/1993 | US5249445 Machine and method for forming arched roof vertical wall self supporting metal buildings |
| 09/30/1993 | WO1993018872A1 A sheet metal profile and a method of manufacturing the profile, whereby an initial local deformation is larger than the final |
| 09/22/1993 | EP0560810A1 Structural member and method of manufacture |
| 09/22/1993 | CN2142375Y Screw steel bar with elliptic cross-section |
| 09/22/1993 | CN1076389A A roller section for longitudinally profiling sheet material and a profiling roller mill comprising such roller sections |
| 08/31/1993 | US5240682 Reinforced corrugated thin metal foil strip useful in a catalytic converter core, a catalytic converter core containing said strip and an electrically heatable catalytic converter containing said core |
| 08/31/1993 | CA2003702C Roll former and/or cutter with quick automated tool changer |
| 08/25/1993 | CN1075435A Processing method for curved shell plate |
| 08/05/1993 | WO1993014891A1 A roller section with individually adjustable roller holders, for longitudinally profiling sheet material, and profiling roller mill comprising such sections |
| 06/23/1993 | CN2136702Y Drawing machine head for cold rolling thread reinforcing bar |
| 06/09/1993 | EP0545100A1 Device for bending sheets with trapezoidal corrugations |
| 06/08/1993 | CA1318816C Machine for corrugating sheet metal or the like |
| 06/02/1993 | EP0544639A1 Isolating plate to be driven into masonry walls and process and apparatus for its manufacture |
| 05/25/1993 | CA1318187C Roll forming process and apparatus for making ribs in strip material |
| 05/04/1993 | US5207083 Method of controlling the length of corrugated fins |
| 04/28/1993 | EP0538849A1 Inner fin and manufacturing method of the same |
| 04/20/1993 | CA1316443C Apparatus for cutting corrugated strip stock at variable lengths |
| 04/13/1993 | US5201367 Stack of plates for a plate-and-tube heat exchanger with diverging-converging passages |
| 04/06/1993 | US5200013 Method and device for corrugated deformation of a flat material sheet |