| Patents for B21D 7 - Bending rods, profiles, or tubes (6,195) |
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| 12/26/1978 | US4131008 Device for measuring the bending angles in plate-bending machines |
| 12/26/1978 | US4131003 Semiautomatic control system for tube bending machine |
| 12/19/1978 | US4130004 Method for bending tubes |
| 11/21/1978 | US4126030 Retractable pressure die |
| 11/14/1978 | CA1042315A1 Cable bender |
| 11/07/1978 | US4123899 Method for bending chain links and chain link bending machine |
| 11/07/1978 | CA1041883A1 Method for producing a high tensile strength and high toughness bend pipe |
| 10/31/1978 | US4122697 Means and method for reducing radius expansion in the bending of elongated materials |
| 10/17/1978 | CA1040518A1 Method and device for bending pipes |
| 10/10/1978 | CA1040088A1 Machine for bending bar or rod material |
| 10/03/1978 | US4117872 Binding tool |
| 10/03/1978 | US4117702 Rolling machines for contouring tapered structural members |
| 10/03/1978 | CA1039635A1 Bending apparatus having a roller support unit for electrical metallic tubing, conduit and thin wall tubing |
| 09/05/1978 | CA1037847A1 Pipe bending apparatus |
| 08/15/1978 | CA1036474A1 Tube bending machine |
| 07/25/1978 | US4102169 Method and apparatus for pipe bending |
| 07/18/1978 | US4100780 Program controlled tube bending machine and a binary feed mechanism for use therein |
| 07/04/1978 | US4098106 Bending method and apparatus with slidable clamp |
| 06/27/1978 | US4096891 Method and apparatus for automatically forming wire frames |
| 05/23/1978 | US4090387 Bending-tool and a device fitted out with such a tool |
| 05/16/1978 | US4089160 Horseshoe bending apparatus and vise |
| 04/11/1978 | US4083216 Support pin for clamping die assembly |
| 03/28/1978 | US4080815 Pinch and forming roll assembly for numerically controlled contour forming machines |
| 03/28/1978 | US4080814 Set-up guide for bending machine |
| 03/14/1978 | US4078411 Floating clamp die |
| 03/07/1978 | US4077249 Cutting or bending tool |
| 02/14/1978 | US4074350 Soft-wired machine tool control |
| 02/14/1978 | US4073177 Method for bending thick profiled parts, part obtained thereby and application thereof to pane framings and the like |
| 02/07/1978 | US4072036 Bending machine |
| 12/20/1977 | US4063444 Offset pipe bending device |
| 12/20/1977 | US4063441 Apparatus for bending tubes |
| 12/13/1977 | US4062216 Metal bending methods and apparatus |
| 12/06/1977 | US4061005 Method and apparatus for continuous bending of elongated materials |
| 11/29/1977 | US4059978 Tube bending machine |
| 11/08/1977 | US4056960 Means and method for bending elongated materials incorporating two arms |
| 10/25/1977 | US4055069 Portable manually controlled hydraulic pipe bending apparatus |
| 10/25/1977 | US4055065 Method and apparatus for simultaneous edge bending of stair rail cap stock and channel stock |
| 10/25/1977 | US4054982 Method of forming circularly bent articles, in particular wheel rims, from a straight metal profile strip and apparatus for performing the method |
| 10/11/1977 | US4052881 Process for providing offset bends of the correct dimension in pipe and the like |
| 10/11/1977 | US4052879 Cable bender |
| 10/11/1977 | US4052878 Tube bending apparatus |
| 10/11/1977 | US4052875 Small size, portable bender |
| 09/20/1977 | US4049026 Bending apparatus having a shaped mandrel used in automatic bending machines for metal wire and bar stock |
| 09/20/1977 | US4048826 Device for manufacturing rotationally symmetrical constructional parts |
| 08/23/1977 | US4043167 Process and machine for finishing a 15° to 180° pipe bend which has been preformed on a pipe bending press |
| 08/09/1977 | US4040283 Bending rolls machine |
| 08/02/1977 | US4039063 Run-out apparatus and method for roll-formed panels |
| 08/02/1977 | US4038853 Tube bending machine |
| 07/26/1977 | US4037457 Support table for pipe bender |
| 06/28/1977 | US4031733 Apparatus for bending tubular members |
| 06/21/1977 | US4030335 Multi-function metal-working machine |
| 06/14/1977 | US4028926 Handling device for slipping tubes on the mandrel of bending machines |
| 05/31/1977 | US4026138 Cable bender |
| 05/10/1977 | US4022045 Tube bending apparatus |
| 05/03/1977 | US4020878 Method and apparatus for making annular metallic blanks |
| 05/03/1977 | US4020669 Machine for bending bar or rod material |
| 03/22/1977 | US4012936 Method and device for bending pipes |
| 03/22/1977 | US4012933 Bending machines |
| 03/08/1977 | US4011429 Hot stretch-wrap forming with resistance heating |
| 03/01/1977 | US4009602 Tube bending tool with angle sighting means |
| 02/22/1977 | US4008595 Method and apparatus for arcuately bending and rolling an elongated metallic workpiece |
| 02/08/1977 | US4006621 Pipe bending machine |
| 02/01/1977 | US4005593 Bending clamp |
| 01/25/1977 | US4004445 Rope bending device |
| 01/04/1977 | US4000636 Pipe bending machine |
| 12/14/1976 | US3996779 Pipe storage apparatus and method |
| 11/16/1976 | US3991600 Stirrup machine |
| 11/02/1976 | US3988918 Cable bender |
| 11/02/1976 | US3988914 Isothermal metal forming apparatus |
| 11/02/1976 | US3988913 Isothermal metal forming apparatus |
| 10/26/1976 | US3987656 Pipe bending apparatus |
| 10/19/1976 | US3987272 Manufacture of forks for fork lift trucks |
| 10/19/1976 | US3986381 Bending head for a tube bending machine |
| 09/21/1976 | US3981173 Apparatus for bending conduits |
| 09/14/1976 | US3979938 Apparatus for bending thin flexible strips |
| 09/07/1976 | US3979231 Method for producing large diameter steel pipes |
| 09/07/1976 | US3978706 Precision bending work method for metallic materials |
| 08/17/1976 | US3974676 Tube bending machine and carriage therefor |
| 08/10/1976 | US3973999 Method for producing a high tensile strength and high toughness bend pipe |
| 07/06/1976 | US3967488 Neckerflanger for metal cans |
| 06/22/1976 | US3964289 Rectangular metal-tubing bender |
| 05/25/1976 | US3958440 Universal tube bending machine |
| 05/25/1976 | US3958438 Apparatus for bending pipes with heating of the bending zone |
| 05/11/1976 | US3955599 Apparatus for bending a flowline under subsea conditions |
| 05/04/1976 | US3954000 Bending tool for semi-rigid coaxial cable |
| 04/27/1976 | US3952572 Beam bender |
| 04/13/1976 | US3949591 Bender for die cutters and perforators for the printing industry |
| 04/13/1976 | US3949584 Bending apparatus having a roller support unit for E.M.T., conduit and thin wall tubing |
| 04/13/1976 | US3949582 Positioning servo and controlled mechanism |
| 03/23/1976 | US3945239 Metal forming machine with multiple extended beds |
| 03/16/1976 | US3944782 Isothermal metal forming |
| 03/16/1976 | US3943747 Portable hot pipe bending apparatus |
| 02/03/1976 | US3935721 Tubing bending machine |
| 01/27/1976 | US3934450 Method and apparatus for bending elongated members |
| 01/27/1976 | US3934439 Draw-bending apparatus and method |