| 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) |
|---|
| 07/23/1997 | EP0660764B1 Method and apparatus for producing helical flighting for screw conveyors |
| 07/16/1997 | EP0783425A1 Ladder frame assembly for a motor vehicle |
| 07/16/1997 | EP0673290B1 Manufacture of piston rings |
| 07/15/1997 | CA2020259C Method and apparatus for bending manufacturing of long workpiece |
| 06/18/1997 | EP0635093B1 Process and device for producing spacing frames used between the glass panels of insulating glass panes |
| 05/29/1997 | WO1997018908A1 Apparatus for forming metal |
| 05/28/1997 | CN2254785Y Equipment for twisting metallic parts |
| 05/27/1997 | US5632508 Ladder frame assembly for a motor vehicle |
| 05/20/1997 | US5630333 Apparatus for bending blade material |
| 05/07/1997 | EP0771597A1 Apparatus for bending or curving hollow profiles |
| 05/07/1997 | DE19625979A1 Procedure for manufacture of strip=form mesh element for reinforcing connecting areas |
| 04/30/1997 | CN1148822A Method and device for rounding cans |
| 03/27/1997 | DE19528728A1 Rounding device for rabbet joint aluminium roofing elements |
| 03/05/1997 | EP0759822A1 Method and device for rounding cans |
| 03/04/1997 | US5606886 Jaw assembly for stretch former |
| 02/26/1997 | CN1034107C Equipment for manufacturing spirally coiled pipe |
| 02/11/1997 | US5600984 Device for bending tubes |
| 01/29/1997 | CN2246026Y Small bending machine |
| 01/15/1997 | CN1140110A Universal ring bender |
| 12/31/1996 | US5588322 Universal support and positioning structure for tools used by an elongate element bending machine |
| 12/24/1996 | US5586461 Methods and apparatus for manufacturing helical products |
| 12/18/1996 | CN1033563C Single-forming mould for square-section helical tubes |
| 12/17/1996 | US5584198 Apparatus and method for forming metal building panels |
| 12/11/1996 | CN2242143Y Device for joggling sandwich metallic plate square |
| 11/27/1996 | EP0693980A4 Flexible constraining apparatus and method for the stretch forming of elongated hollow metal sections |
| 11/27/1996 | CN1136480A Stretch controlled forming mechanism and method for forming metal blanks |
| 11/20/1996 | EP0697925A4 Microprocessor controlled apparatus and method for forming metal building panels |
| 11/20/1996 | EP0693981A4 Apparatus and method for the stretch forming of elongated hollow metal sections |
| 11/13/1996 | EP0742056A1 Universal pipe bender |
| 11/13/1996 | CN2239847Y Miniature joggling machine |
| 11/13/1996 | CN1033264C Coiling and hot-forming process for wedge rings |
| 11/06/1996 | CN2239309Y Assembly round granary board maker |
| 11/05/1996 | US5571349 Method of producing twisted aluminum articles |
| 10/23/1996 | CN2238096Y End-cutting, prebend, clamping mechanism for plate spring end winder of car |
| 10/23/1996 | CN2238095Y Plate spring end winder for car |
| 10/15/1996 | US5564303 Internal mandrel for use in pipe bending |
| 10/09/1996 | EP0664735B1 A universal support and positioning structure for tools usable by an elongate element bending machine |
| 10/09/1996 | CN2236909Y Improved machine frame structure of edge engaging machine |
| 10/08/1996 | US5561902 Method of manufacturing a ladder frame assembly for a motor vehicle |
| 10/03/1996 | WO1996030139A1 Method and device for rounding cans |
| 10/03/1996 | CA2220097A1 Method and device for rounding bushings |
| 09/26/1996 | DE19517041A1 Transfer system for machine tool |
| 09/26/1996 | DE19511095A1 Verfahren und Vorrichtung zum Rundbiegen von Buchsen Method and apparatus for roll bending of sockets |
| 09/18/1996 | CN2235332Y Double fin shaped steel |
| 09/18/1996 | CN2235331Y Inner screwed drawing and rolling machine for mfg. coiled pipe |
| 09/10/1996 | US5553371 Method of manufacturing friction plates |
| 08/28/1996 | CN2233792Y Miniature twisting machine |
| 08/14/1996 | EP0726102A1 Method for deforming a plate and plate suitable therefor |
| 08/14/1996 | EP0725692A1 A system for producing bent sheet-metal articles and components of the system |
| 08/14/1996 | CA2169327A1 Method for deforming a plate and a plate suitable therefor |
| 07/23/1996 | US5537852 Bending assembly of a bending machine |
| 07/18/1996 | WO1996021529A1 A profile definition system |
| 07/17/1996 | CN2231146Y Line contact butterfly spring forming device |
| 06/25/1996 | US5529239 Spherical lng-tank and a production method for such a tank |
| 06/18/1996 | US5526671 Method and apparatus for leveling a die on a die-forming machine |
| 06/13/1996 | DE4443695A1 Simultaneous prodn. of re-bar in straight cut lengths and cut and bent lengths |
| 06/12/1996 | EP0715907A1 Method of bending steel bars, in particular for bending of concrete reinforcement bars to form reinforcement stirrups |
| 06/05/1996 | DE4442211A1 Roofing sheets with corrugations of trapezium-shaped cross=section |
| 05/30/1996 | DE4442030A1 Metal strip bending process for rails of doors and windows |
| 05/17/1996 | WO1996014176A1 Methods and apparatus for manufacturing helical products |
| 05/17/1996 | CA2204139A1 Methods and apparatus for manufacturing helical products |
| 05/08/1996 | CN1122114A Microprocessor controlled apparatus and method for forming metal building panels |
| 04/30/1996 | US5511402 Optimizing controller |
| 04/24/1996 | CN2225317Y Swing forming mechanism for ear bending machine of automobile leaf spring |
| 04/24/1996 | CN2225316Y Loose core extruding mechanism for ear bending machine of automobile leaf spring |
| 04/17/1996 | EP0706843A1 Method and device for the production of curved workpieces |
| 04/04/1996 | WO1996009949A1 Ladder frame assembly for a motor vehicle |
| 04/02/1996 | US5502880 Manufacture of piston rings |
| 03/14/1996 | WO1996007492A1 Process and system for bending of a cellular sheet |
| 03/13/1996 | CN1118288A Bending unit with adjustable arc steel-bar for bender |
| 03/12/1996 | US5498113 Method to butt bars, and bar butting assembly that employs such method |
| 03/06/1996 | EP0699488A1 Apparatus for bending blade material |
| 03/05/1996 | US5495741 Apparatus for bending a band-shaped work |
| 03/05/1996 | US5495739 Apparatus for forming scrolls from strip material |
| 02/29/1996 | WO1996005922A1 Method and device for the deformation of plate material |
| 02/28/1996 | EP0698429A1 Device for bending in one operation a series of parallel bars pertaining to a net |
| 02/28/1996 | EP0697925A1 Microprocessor controlled apparatus and method for forming metal building panels |
| 02/28/1996 | EP0549761B1 Machine for making latticework mats consisting of welded longitudinal and transverse wires |
| 02/28/1996 | EP0475962B1 Method and apparatus for making card clothing |
| 02/22/1996 | DE4429180A1 Bending unit for profiled rods |
| 02/15/1996 | DE4426907A1 Machine for forming parts for wrought iron prods. |
| 02/06/1996 | US5489084 Method of configuring a carpet roll |
| 01/31/1996 | EP0693981A1 Apparatus and method for the stretch forming of elongated hollow metal sections |
| 01/31/1996 | EP0693980A1 Flexible constraining apparatus and method for the stretch forming of elongated hollow metal sections |
| 01/18/1996 | DE4447533C1 Flat steel anchor bolt |
| 01/18/1996 | DE4425149A1 Bent trapezoidal sheet metal profile for roof structures |
| 01/16/1996 | US5484098 Spherical LNG-tank and a production method for such a tank |
| 01/09/1996 | US5481896 Knife bending apparatus |
| 12/27/1995 | EP0688912A1 Masonry wall tie for connecting two parallel building elements and method of its manufacture |
| 12/27/1995 | EP0688613A1 Reinforcement for supported concrete floor in the neighbourhood of the supports and method and bending machine for making it |
| 12/27/1995 | CN2215959Y Five-roller variable cross-section plate spring mill |
| 12/13/1995 | CN2214851Y Hand joggling machine |
| 12/07/1995 | DE4419418A1 Metal pipe bending machine with displaceable bending head |
| 12/05/1995 | CA2056273C Heat exchanger assembly with wrapped tubing |
| 11/29/1995 | EP0684096A2 Method of manufacturing friction plates |
| 11/28/1995 | US5469730 Pipe bending machine |
| 11/23/1995 | DE4417249A1 Process for manufacturing spacing sleeves for fixing vibrating systems |
| 11/16/1995 | DE4416258A1 Appts. for production of non-circular piston rings |
| 10/25/1995 | CN2210731Y Machine for flat bending lath into circle |
| 09/05/1995 | CA1336877C Procedure for bending bars, channels, sections and the like, and bending machine to carry out this procedure |