| Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374) |
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| 01/02/1990 | US4890476 Precision plate bending machine having a play removing device |
| 01/02/1990 | US4890469 Bending machine for bending bars, channels, sections and the like |
| 12/19/1989 | EP0248845A4 Press forming sheet metal. |
| 12/13/1989 | CN2049156U Sheet-crimping machine with two rollers |
| 11/21/1989 | US4881355 Cold roll-formed structures and method and apparatus for producing same |
| 11/16/1989 | WO1989010807A1 Precision press brake |
| 11/08/1989 | EP0341211A2 Method of bending sheet metal |
| 11/07/1989 | US4878368 Adaptive roll formed system and method |
| 11/02/1989 | EP0340167A2 Method of bending work pieces |
| 11/02/1989 | EP0339094A1 Method of guiding material to fin-pass roll and its guide roll stand. |
| 11/02/1989 | EP0072859B1 Panel and panel assembly |
| 10/31/1989 | US4876837 Corner bead structure |
| 10/25/1989 | EP0338949A1 Bending machine for sheet metal |
| 10/24/1989 | US4875356 Material fabricating mechanism |
| 10/18/1989 | EP0336942A1 Method and installation for forming a titanium or titanium alloy sheet element with adjusted surface |
| 10/05/1989 | WO1989009103A1 Bending apparatus |
| 10/05/1989 | WO1989009102A1 Bending apparatus |
| 10/05/1989 | WO1989009101A1 Bending apparatus |
| 10/05/1989 | WO1989009100A1 Bending apparatus |
| 09/26/1989 | CA1259786A1 Self-equalizing piercing machine |
| 09/20/1989 | EP0333654A1 Angle measuring system |
| 09/20/1989 | EP0332674A1 Edging and folding machine |
| 09/19/1989 | US4866975 Die positioning mechanism |
| 09/13/1989 | EP0332221A2 Folding machine |
| 09/12/1989 | CA1259172A1 Manufacture of piston rings |
| 09/05/1989 | US4864509 Method and related apparatus for controlling the operation of a press brake |
| 08/30/1989 | EP0330258A1 Apparatus for cambering a tool of a bending apparatus |
| 08/29/1989 | CA1258783A1 Mill for roll forming a fluted tube |
| 08/15/1989 | US4857412 Method for forming a planar sheet or plate to a curved shape |
| 08/15/1989 | US4856315 Bending machine for the production of rectangular sheet metal panels starting from flat metal sheets |
| 08/15/1989 | US4856312 Rounding apparatus for a can welding machine |
| 08/02/1989 | EP0325841A2 Shock-absorbing workpiece-supporting device for bending machines |
| 08/02/1989 | EP0325840A2 Workpiece-supporting device for bending machines |
| 08/02/1989 | CN1034324A Oscillating four-roller roll-bending principle and bending roll machine of sections |
| 08/01/1989 | US4852379 Metal forming methods and products formed thereby |
| 07/05/1989 | CN1033586A Methods and equipments adapted for manufacting non-circular can |
| 07/04/1989 | US4843862 Bending machine for sheet metal panels having a blank holder with uniform compression |
| 06/27/1989 | CA1256363A2 Press machine |
| 06/14/1989 | EP0320465A2 A roll forming machine |
| 06/14/1989 | EP0320342A1 Bending machine |
| 06/14/1989 | EP0319842A1 Method of producing a bearing |
| 06/06/1989 | US4836004 Folding press for plates |
| 06/06/1989 | CA1255201A1 Bending press |
| 05/31/1989 | EP0317637A1 Method of bending band knife |
| 05/24/1989 | EP0316703A2 Method and apparatus for bending work pieces |
| 05/23/1989 | US4831862 Multistep bending machine |
| 05/23/1989 | US4831857 Machine with quick disconnect between spindle drive train and power transmission |
| 05/10/1989 | CN2037271U Roller press making galvanized iron products |
| 05/09/1989 | US4827757 Robotized handling device and sheet metal bending system featuring the same |
| 04/26/1989 | EP0312918A2 Method and apparatus for making a can body of non-circular section |
| 04/26/1989 | CN2036456U Hand bender |
| 04/25/1989 | US4823576 Apparatus for manufacturing ring-shaped member from elongate workpiece |
| 04/18/1989 | US4821550 Roll forming apparatus |
| 04/11/1989 | US4819473 Press forming sheet metal |
| 04/11/1989 | US4819467 Adaptive control system for hydraulic press brake |
| 04/11/1989 | CA1252377A1 Forming press, but especially bending press |
| 04/06/1989 | WO1989002792A1 Method and installation for forming a titanium or titanium alloy sheet element with adjusted surface |
| 04/05/1989 | EP0310145A2 Bending machine |
| 03/29/1989 | CN2034881U Folding machine for product of sheet iron |
| 03/28/1989 | US4816099 Method for the production of a composite pipe and an apparatus for the same |
| 03/23/1989 | WO1989002322A1 Edging and folding machine |
| 03/22/1989 | EP0308363A1 Circulating shelf |
| 03/22/1989 | EP0182890B1 Process to manufacture a seal-holding profile |
| 03/16/1989 | DE3739949C1 Stop device for a plate-bending machine |
| 03/14/1989 | US4811587 Apparatus for making panels |
| 03/14/1989 | EP0232331A4 Roll forming of metal articles. |
| 03/01/1989 | EP0304562A2 Method for bending a strip with a profiled region at its longitudinal edge |
| 02/21/1989 | US4805439 Work following apparatus and method for press working |
| 02/21/1989 | US4805438 Hemming die fixture for metal presses |
| 02/14/1989 | US4803879 Slip lock forming apparatus |
| 02/07/1989 | US4802357 Apparatus and method of compensating for springback in a workpiece |
| 01/25/1989 | EP0300137A2 Bending brake |
| 01/24/1989 | US4799373 For bending wire, tubing, or other elongate material |
| 01/18/1989 | CN2030918U Combination edge-curling machine |
| 01/17/1989 | US4798073 Bending machine for bending bars, channels, sections and the like |
| 01/10/1989 | US4796797 Method for making thin-walled metal pipes |
| 01/10/1989 | US4796449 Automatically controlled machine for rolling metal sheets |
| 01/10/1989 | US4796393 Decorative awning and facia structures and methods and apparatus for forming the same |
| 01/04/1989 | EP0298056A2 Bending press for sheets |
| 12/28/1988 | EP0296650A2 System for connecting a bending blade to its corresponding support in a sheet metal panel bending machine |
| 12/28/1988 | CN88101943A Shaping method and apparatus in tube rolling mills |
| 12/28/1988 | CN88101905A Shaping method and apparatus in tube rolling mills |
| 12/20/1988 | US4792318 Device for warm press forming a plate-like member into a shadow mask for a color cathode ray tube |
| 12/15/1988 | WO1988009703A1 Method of bending band knife |
| 12/07/1988 | EP0293964A2 Bending machine for sheet metal panels having a blank holder with uniform compression |
| 11/29/1988 | US4787237 Failsafe tool clamping system for press brake |
| 11/29/1988 | US4787233 Roll forming machine with auxiliary roll set assembly |
| 11/29/1988 | US4787232 Roll forming member and/or a roll former |
| 11/29/1988 | US4787231 Roller machine for profile cold bending |
| 11/23/1988 | CN88102518A Rounding apparatus for can welding machine |
| 11/15/1988 | US4783984 Apparatus for folding a sheet metal element |
| 11/15/1988 | US4783981 Apparatus for forming a tube from a metal band |
| 11/09/1988 | EP0289745A2 Rounding apparatus for a can welding machine |
| 10/27/1988 | DE3712167A1 Universal folding beam for folding presses |
| 10/18/1988 | US4777816 Roll bending machine |
| 10/11/1988 | US4776194 Pipe mill |
| 10/04/1988 | CA1242769A1 Through guide for rounded blanks on a seam welding machine |
| 09/29/1988 | DE3709018A1 Apparatus for bending sheet plates |
| 09/21/1988 | EP0282680A2 Roll-bending machine |
| 09/21/1988 | EP0282493A1 Adaptative control system for hydraulic press brake. |