| 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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| 04/20/1989 | WO1989003260A1 Rolling mill machine |
| 04/18/1989 | CA1252618A1 Method and an apparatus for the manufacture of heat exchanger rolls |
| 04/12/1989 | CN2035664U Surface strengthening machine for leaf spring |
| 04/11/1989 | US4819473 Press forming sheet metal |
| 01/04/1989 | CN2030116U Pressing mould for bending and notching metallic plate and strip |
| 12/20/1988 | US4791800 Roll forming process and apparatus for making ribs in strip material |
| 07/27/1988 | CN87100167A Machine for forming metal corrugated sheet, and for welding each at its longitudinal ends |
| 07/19/1988 | US4758706 Parallel corrugations for matter and welder thereof |
| 06/28/1988 | US4753096 Apparatus for controlling height of corrugations formed in a continuous length of strip stock |
| 06/15/1988 | CN87214066U Simple cover sealing device for glass bottle can |
| 06/07/1988 | US4748838 Process for making obliquely corrugated thin metal strips |
| 05/18/1988 | CN87211550U Zigzag corrugated plate |
| 05/17/1988 | CA1236675A1 Rounded corrugated sheet and machine and method for its manufacture |
| 05/05/1988 | WO1988003067A1 An arrangement for profiling forwardly indexed material webs |
| 05/03/1988 | US4741192 Rolling metal ribbon stock into convoluted fin strip for use in heat exchangers |
| 04/27/1988 | EP0265408A2 An arrangement for profiling forwardly indexed material webs |
| 04/07/1988 | WO1988002286A1 Method and device for moving a tool to exact shaping or working engagement with a strip of material having a repeated basic shape |
| 03/30/1988 | EP0262106A2 Method and device for moving a tool to exact shaping and working engagement with a strip of material having a repeated basic shape |
| 03/30/1988 | EP0261140A1 Machine for adjustable longitudinal corrugating of sheet materials. |
| 03/30/1988 | EP0139066B1 Device for burnishing a foil |
| 03/30/1988 | CN86106315A Hot rolling process for h-shape steel beam with corrugated web |
| 03/16/1988 | CN87100345A Forming method and device of multi-wave node plate in circular arc with equidistance |
| 02/25/1988 | WO1988001208A1 Machine for corrugating sheet metal or the like |
| 01/20/1988 | CN87101818A Cold roll-formed structures and method and apparatus for producing same |
| 01/07/1988 | EP0251735A2 A process and machine for the formation of expanded mesh materials |
| 12/16/1987 | EP0248845A1 Press forming sheet metal |
| 08/25/1987 | US4689261 Rounded corrugated sheet and method and apparatus for its manufacture |
| 08/19/1987 | EP0233172A2 Stainless steel plate and sheet roll-device |
| 08/11/1987 | US4685318 Rotary cutter for cutting a continuous corrugated strip |
| 07/30/1987 | WO1987004375A1 Machine for adjustable longitudinal corrugating of sheet materials |
| 07/08/1987 | EP0227714A1 Method for forming a sheet of metal, tool for carrying out the method and housing fixture made of the sheet of metal |
| 06/18/1987 | WO1987003518A1 Press forming sheet metal |
| 05/12/1987 | US4664183 Plate heat exchanger and pressing tool for the production thereof |
| 05/12/1987 | CA1221615A1 Patterned metal blind slat and method and apparatus for producing the same |
| 04/28/1987 | US4660633 Plate heat exchanger |
| 04/28/1987 | CA1220984A1 Metal forming machine |
| 02/12/1987 | DE3527210A1 Profile rolling machine for metal sheets |
| 01/21/1987 | EP0209450A1 Machine for forming parallel waves in a plate and for welding each wave at its longitudinal ends |
| 01/15/1987 | WO1987000095A1 Method for forming a sheet of metal, tool for carrying out the method and housing fixture made of the sheet of metal |
| 01/14/1987 | EP0208001A1 Device for bending sheets with trapezoidal corrugations |
| 01/13/1987 | US4635462 Corrugating die shoe assemblies |
| 01/10/1987 | CN85101219A Apparatus and method of manufacturing an axil flow filter |
| 12/30/1986 | US4632862 I-beam honeycomb material |
| 12/09/1986 | US4627258 Apparatus for impressing a strip along its edge |
| 09/03/1986 | EP0193238A2 I-beam honeycomb material |
| 09/02/1986 | US4608845 Apparatus for fabricating honeycomb core strip |
| 08/05/1986 | US4603572 Device and method for bending corrugated plates |
| 07/01/1986 | US4597277 Process and apparatus for producing reinforced metal strips |
| 05/27/1986 | US4590783 Press forming process and apparatus therefor |
| 04/30/1986 | EP0179646A2 Heat exchanger fin arrays |
| 04/09/1986 | EP0177421A1 Guiding device, in particular for metal strip |
| 04/08/1986 | US4580433 Method of bending shaped metal sheet and apparatus for carrying out the method |
| 03/19/1986 | EP0107674B1 Method for making closed grooves |
| 02/04/1986 | CA1200151A1 Chuted mixer forming method |
| 01/15/1986 | EP0167874A2 Device for manufacturing strip, in particular metal strip with deformed strip edges |
| 01/07/1986 | US4562718 Pallet and method of production |
| 01/02/1986 | EP0166606A2 Porous metal article and method of making |
| 12/31/1985 | US4562039 Porous metal article and method of making |
| 12/04/1985 | EP0163310A2 Production of profiled self-portable tiles |
| 10/24/1985 | EP0072859A4 Panel and panel assembly. |
| 08/07/1985 | EP0150913A2 Roller tooling for forming corrugated strip |
| 08/07/1985 | EP0150818A2 Press forming process and apparatus therefor |
| 08/06/1985 | US4532794 Stamping and bending machine for manufacturing shaped parts |
| 07/16/1985 | US4528835 Roofing for building and method and apparatus for making the roofing |
| 06/18/1985 | US4523500 Method and apparatus for cutting continuous corrugated member |
| 06/18/1985 | CA1188933A1 Device for corrugating sheet material |
| 06/05/1985 | EP0143136A1 Apparatus for forming corrugated fins for heat exchangers |
| 05/15/1985 | EP0141762A2 Method and device for the manufacture of reinforced metallic strips |
| 05/07/1985 | US4514998 Metal forming machine |
| 05/02/1985 | EP0139066A1 Device for burnishing a foil |
| 04/30/1985 | US4513794 Wire forming machine |
| 04/10/1985 | EP0136670A2 Rounded corrugated sheet and method and apparatus for its manufacture |
| 04/02/1985 | US4507948 Method and apparatus for cutting corrugated strip |
| 03/19/1985 | US4505143 Wide panel, panel assembly, and panel forming apparatus |
| 03/19/1985 | US4505084 Wide panel, panel assembly |
| 03/05/1985 | US4502315 Device for corrugating sheet material |
| 02/19/1985 | US4499938 Patterned metal blind slat and method and apparatus for producing the same |
| 02/12/1985 | US4498390 Method and apparatus for embossing foil |
| 11/13/1984 | US4481698 Chuted mixer forming method |
| 10/03/1984 | EP0120828A2 A method and an apparatus for the manufacture of heat exchanger rolls |
| 09/26/1984 | EP0072797B1 Heat exchanger plate having distortion resistant uniform pleats |
| 09/11/1984 | US4471013 Core strip for honeycomb core panels |
| 07/25/1984 | EP0113947A2 Patterned metal blind slat and method and apparatus for producing the same |
| 07/24/1984 | CA1171368A1 Apparatus and a method for making a corrugated casing |
| 07/11/1984 | EP0046750B1 Method and apparatus for flattening corrugated heat exchanger plates |
| 05/29/1984 | US4450706 Method and apparatus for forming collimator strips |
| 05/22/1984 | US4449388 Method of bending shaped metal sheet and apparatus for carrying out the method |
| 05/09/1984 | EP0107673A1 Method and device for manufacturing hollow bodies provided with cooling ribs |
| 04/25/1984 | EP0106480A2 Cooling fins for heat exchanger |
| 04/24/1984 | US4444037 Manufacture of roofing or cladding tiles |
| 04/24/1984 | CA1166241A1 Heat transmission roll and a method and an apparatus for manufacturing such a roll |
| 03/28/1984 | EP0103885A2 Punching and bending machine |
| 03/21/1984 | EP0103340A2 Device and method for bending corrugated plates |
| 03/15/1984 | WO1984000907A1 Device and method for bending corrugated plates |
| 03/06/1984 | US4434638 Method and apparatus for severing corrugated metal products |
| 03/06/1984 | US4434637 Method and apparatus for flattening corrugated heat exchanger plate |
| 03/01/1984 | WO1984000784A1 Stepped corrugated metal roof board and apparatus for producing the same |
| 02/14/1984 | CA1162015A1 Thermoforming machine |
| 01/24/1984 | US4427354 Tinsel facetting apparatus |
| 01/17/1984 | CA1160512A1 Method of manufacturing roofing |