| Patents for B21D 11 - Bending not restricted to forms of material mentioned in only one of groups , ,; Bending not provided for in groups; Twisting (4,159) |
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| 03/31/1992 | US5099670 Plate bending machine |
| 03/31/1992 | US5099669 Bending assembly with satellite |
| 03/31/1992 | US5099574 Method of making a heat exchanger assembly with wrapped tubing |
| 03/25/1992 | EP0475962A1 Method and apparatus for making card clothing. |
| 03/10/1992 | US5094095 Printing plate bending apparatus |
| 03/05/1992 | WO1992003237A1 Apparatus for and method of bending pipes |
| 03/03/1992 | US5092150 Pipe transport mechanism for pipe bender |
| 02/18/1992 | US5088310 Additional bender of metal wire working machines for creation of three dimensional shapes (forms) |
| 02/11/1992 | US5086637 Apparatus for forming metallic binding bands |
| 02/11/1992 | US5086636 Stretch-forming machine |
| 02/06/1992 | DE4024610A1 Tool for bending stepped sheet metal section - has mechanism to apply tensile force to section during bending operation |
| 01/22/1992 | CN1057978A Method and apparatus for shaping spiral steel tube and bend by hot push foreward |
| 01/09/1992 | WO1992000155A1 Bending machines |
| 12/18/1991 | CN2090743U Cold-bending shaper for helix tube |
| 12/12/1991 | DE4016440A1 Profiled section cold shaping - using vibrating clamping pads at each end of length to be bent with further central vibrating head |
| 12/11/1991 | EP0460321A1 Apparatus for forming binding bands |
| 12/04/1991 | EP0459217A2 Procedure and device for cold bending of profiles |
| 12/03/1991 | US5069382 Apparatus and method for producing a pressure vessel from metal tubing |
| 11/26/1991 | US5067337 Device for the controlled and independent rocking of straightening and bending platforms |
| 11/12/1991 | US5063662 Method of forming a hollow blade |
| 11/05/1991 | US5062288 Method and apparatus for forming bends in a tube |
| 11/05/1991 | US5062286 Method and apparatus for bending corrugated sheet |
| 10/17/1991 | WO1991015605A1 Method and apparatus for making card clothing |
| 10/16/1991 | EP0452246A2 Method for wire bending in three dimensions |
| 10/03/1991 | WO1991014521A1 Method of bending a ball point pen tip |
| 09/25/1991 | EP0448339A1 Method of forming a hollow blade |
| 09/18/1991 | EP0446650A1 Collection and discharge bench |
| 09/16/1991 | CA2038311A1 Collection and discharge bench |
| 08/27/1991 | US5042282 Small-diameter metallic conduit bending machine |
| 08/21/1991 | EP0268676B1 Process and device for cold forming of steel and non-ferrous metal sections |
| 08/20/1991 | US5040401 Re-rod bender |
| 08/06/1991 | US5036694 Method and apparatus for bending the flange of a workpiece |
| 08/01/1991 | DE4002428A1 Bending machine for ribbed steel rods - has ribbed rollers generating bending and supporting torque towards table |
| 07/31/1991 | EP0438829A2 Method of producing a plate-shaped product comprising positioning a component which is connected to or forms part of a plate, and also device suitable for carrying out the method and plate-shaped product which can be manufactured according to the method |
| 07/24/1991 | EP0437714A1 Bending assembly with satellite |
| 06/30/1991 | CA2031737A1 Bending assembly with satellite |
| 06/26/1991 | CN2079539U 多功能弯卷机 Multifunction curling machine |
| 06/25/1991 | US5025651 Movable shears upstream of a bending assembly and method to bend the trailing end of bars |
| 06/19/1991 | EP0432468A2 Machine for bending steel bars |
| 06/12/1991 | EP0431418A2 Apparatus for bending rod-shaped radially non-rotatable material |
| 05/29/1991 | EP0429004A1 Edging device for printing plates |
| 05/15/1991 | EP0427038A1 Rod-bender plant with device for setting the size of rods |
| 05/10/1991 | CA2029414A1 Rod-bender plant with device for setting the size of rods |
| 05/08/1991 | EP0425836A2 Method for manufacturing a telescopic covering |
| 05/07/1991 | US5012663 Method of bending a ball point pen tip |
| 04/24/1991 | EP0423591A1 Device for the controlled and independent rocking of straightening and bending platforms |
| 04/23/1991 | US5009097 Plant or apparatus utilizing a universal straightening-bending machine |
| 04/21/1991 | CA2027877A1 Device for the controlled and independent rocking of straightening and bending platforms |
| 03/27/1991 | EP0419441A1 Apparatus for bending concrete reinforcing bars |
| 03/26/1991 | US5001918 Method and apparatus for making blanks of a profile varying lengthwise |
| 03/26/1991 | US5001819 Apparatus for forming perforated tubes |
| 03/21/1991 | WO1991004113A1 Device for bending steel rods into concrete reinforcing irons |
| 03/21/1991 | CA2042021A1 Device for bending steel rods into concrete reinforcing irons |
| 03/20/1991 | EP0417300A1 Hollow worm conveyer made of strip material and method for making it |
| 03/19/1991 | CA1281620C Apparatus for bending structural metal rails |
| 03/13/1991 | EP0416223A1 Method and device for bending of rodlike material |
| 03/07/1991 | DE3935545C1 Pipe bending machine - has independent bending heads on sides of clamping head to pivot around axis parallel to pipe |
| 03/05/1991 | US4996866 Orientable bending assembly |
| 03/05/1991 | US4996861 Apparatus for forming an elogated tubular element into a helix |
| 02/19/1991 | US4993253 Drawing unit downstream of a bending assembly and method to bend the trailing end of bars |
| 02/12/1991 | US4991422 Plate bending machine |
| 02/05/1991 | US4989429 Rocker bending unit |
| 01/29/1991 | US4987760 Leaf-spring bender |
| 01/15/1991 | US4984360 Method of fabricating flaker evaporators by simultaneously deforming while coiling tube |
| 01/08/1991 | US4982891 Method and system for forming a three-dimensional frame structure |
| 01/02/1991 | EP0405600A1 Method and apparatus for bending manufacturing of long workpiece |
| 12/19/1990 | CN1047904A Movable framework of tunnel wall covering apparatus |
| 12/18/1990 | US4977771 Device for bending thin metallic pipe |
| 12/12/1990 | EP0402024A2 Apparatus for twisting a strip of flat material into a helix or other suitable shape |
| 11/27/1990 | US4972696 Forming elongate structural components |
| 11/15/1990 | DE3915117A1 Electrically controlled device with movable clamp - selects and feeds variously dimensioned rods to bending stations served by reciprocating clamp and chain conveyor |
| 11/07/1990 | EP0396489A2 Additional bender of metal wire working machines for creation of three dimensional shapes (Forms) |
| 10/31/1990 | DE4012970A1 Bending machine for iron wire for reinforced concrete - has wire fed over bending mandrel by roller linked directly to motor or via endless belt to powered roller |
| 10/23/1990 | US4964290 Small-diameter metallic conduit bending machine |
| 10/23/1990 | US4964195 Metallic card clothing |
| 10/18/1990 | DE3912244A1 Device for bending cylindrical materials into spiral shape - by feeding material to rotating former by grooved roller which moves along axis of former |
| 10/09/1990 | US4961335 Small-diameter metallic conduit |
| 09/12/1990 | EP0386457A1 Orientable bending assembly |
| 09/12/1990 | EP0386456A1 Shears unit |
| 09/12/1990 | EP0386083A1 A method and apparatus for bending corrugated sheet. |
| 09/12/1990 | EP0215006B1 Device for bending conical wires |
| 09/11/1990 | US4955222 Deforming panels having ribs |
| 09/06/1990 | CA2011331A1 Orientable bending assembly |
| 09/06/1990 | CA2011330A1 Shears unit |
| 08/15/1990 | CN1009169B Moving mould of tunnel liner device |
| 08/09/1990 | WO1990008719A1 Hollow worm conveyer made of strip material and method for making it |
| 08/08/1990 | EP0381025A1 Method and apparatus for the cold deformation of ferrous and non-ferrous metal sections by spatial coil roll bending |
| 08/07/1990 | US4945751 Re-rod cutter and bender |
| 07/25/1990 | EP0379043A1 Drawing unit downstream of a bending assembly and method to bend the trailing end of bars |
| 07/25/1990 | EP0379030A1 Movable shears upstream of a bending assembly and method to bend the trailing end of bars |
| 07/25/1990 | EP0379029A1 Rocker bending unit |
| 07/18/1990 | CA2007982A1 Rocker bending unit |
| 07/17/1990 | US4941338 Device for cold forming of ferrous and non-ferrous metal sections |
| 07/05/1990 | DE4000020A1 Small metal pipe-bending machine - has die in sections curving to lesser radii than finished article |
| 07/05/1990 | DE3943038A1 Three=dimensional item production method - bends bars after heating initially in common plane at different points |
| 07/03/1990 | US4938050 Small-diameter metallic conduit bending machine |
| 06/27/1990 | EP0374465A1 Plant or apparatus utilizing a universal straightening-bending machine |
| 06/26/1990 | US4936131 Production of threaded metal rods for making U-bolts |
| 06/19/1990 | US4934175 Tool for bending sheet metal and method thereof |
| 06/14/1990 | WO1990006459A1 Piston rings |