Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching › B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves
Patents for B21D 5 - Bending sheet metal along straight lines, e.g. to form simple curves (9,374)
11/1999
11/30/1999US5992203 Coil holder for a sheet bending brake
11/30/1999US5992200 Apparatus for bending laminations in general and computer diskette sliding covers in particular
11/30/1999CA2161629C Microprocessor controlled apparatus and method for forming metal building panels
11/25/1999WO1999060528A1 Sheet metal working graphic data generation method and apparatus
11/25/1999WO1999060454A1 Sheet metal working computer system
11/25/1999DE19822023A1 Self-learning device for bending machine
11/24/1999EP0958870A2 Press
11/24/1999EP0958071A1 Apparatus for bending a metal sheet
11/23/1999US5987958 Methods and apparatus for backgaging and sensor-based control of bending operation
11/23/1999US5987949 Plate scanner--bending device
11/18/1999WO1999058920A1 Method of manufacturing a curved container wall
11/17/1999EP0956459A1 Bearing assembly and manufacturing method
11/17/1999EP0623403B1 Method of forming welded pipe and forming stand therefor
11/16/1999US5983691 Roll-forming machine
11/16/1999US5983688 Method and apparatus for displaying die layout in press brake and for checking interference
11/16/1999US5983571 Door frame and method for forming the same
11/10/1999EP0955105A1 Bending order selecting method in bending machine and apparatus therefor
11/10/1999EP0883452B1 Method for making a skip body with a concave cross section
11/09/1999US5980085 Folding line generation method for bending and bending system based thereon
11/09/1999US5979214 Bending machine for sheet-like workpieces, particularly for creating bent edges on sheet metal pieces
11/02/1999US5974849 Corner bead strip tool
10/1999
10/28/1999DE19818234A1 Roller shaping device for making roller or roll strip elements
10/26/1999US5970774 Apparatus and method for corner cutting and edge bending of lithographic plates
10/26/1999US5970769 Apparatus for bending sheet stock
10/26/1999US5970766 Bending machine for closing channels
10/26/1999US5970764 Roll forming apparatus
10/26/1999CA2154816C Roll forming apparatus and method
10/20/1999CN1231960A Method and apparatus for co-extrusion of plastics on internal surface of fusion welded metal tube
10/20/1999CN1045731C Plate bending apparatus
10/19/1999US5969973 Intelligent system for generating and executing a sheet metal bending plan
10/19/1999US5966974 Automatic learning apparatus for folding machine
10/17/1999WO1999054068A1 Pipe and molding equipment array and pipe molding method
10/17/1999CA2276771A1 Pipe forming line and pipe forming method
10/14/1999WO1999051375A1 Method and device for producing cambered sections of spring band
10/13/1999EP0759822B1 Method and device for rounding cans
10/13/1999CN2342913Y Thin band bending machine
10/12/1999US5964568 Device for gripping and handling pieces of sheet material and manipulator of pieces of sheet material comprising this device
10/12/1999US5964119 For workpieces
10/06/1999EP0946310A1 Apparatus for roll forming purlins and the like from a metal strip
09/1999
09/30/1999DE19809704A1 Hydraulic sheet metal finishing machine producing different tasks
09/29/1999EP0945227A2 Method for planning/controlling robot motion
09/29/1999EP0945192A1 Method for stiffening a thin metal plate and board with stiffening edges produduced thereby
09/28/1999US5956991 Forming device for shaped decoration panels
09/23/1999DE19811717A1 Round bending device for metal sheets
09/21/1999US5953951 Method and apparatus for manufacturing bent products
09/16/1999WO1999046460A1 An elongate building element, sheet material for forming same and method of manufacture thereof
09/14/1999US5950905 Method and apparatus for welding container bodies
09/14/1999US5950485 System for producing bent sheet-metal articles and components of the system
09/14/1999US5950484 Bending center
09/14/1999US5950479 Process and apparatus for moving sheet-metal to and from a bending unit
09/14/1999US5950477 Roll forming machine and method for changing side roll stands
09/10/1999WO1999045446A1 Method and apparatus for designing sheet metal parts
09/10/1999WO1999044764A1 Formation method and device for curved plates
09/09/1999DE19901187A1 Installation for continuous rolling of a metal strip into a profile with straight sides, in particular, for production of longitudinally welded rectangular pipes
09/08/1999EP0940197A2 Upper tool holding apparatus and upper tool separating method from upper tool holding apparatus
09/08/1999EP0940196A1 Bending angle correction method and press brake made using the same
09/08/1999CN1227776A Upper tool holding apparatus and upper tool separating method from upper tool holding apparatus
09/07/1999US5946961 Web bowing apparatus
08/1999
08/31/1999US5943899 Method of processing corners of metal panel
08/31/1999US5943892 Method of breakdown-forming electro-unite tubes
08/31/1999US5943891 Silencer shell forming apparatus
08/26/1999WO1999042233A1 Method and apparatus for measuring bending angle and system for measuring bending angle using the same apparatus
08/25/1999EP0751728B1 Squeakless furniture spring anchor clip and method of making same
08/24/1999US5941116 Bending machine provided with a blank holder having programmable length
08/18/1999EP0775028B1 Method and machine for bending workpieces
08/18/1999CN1226192A Improved bending pressing machine, particularly in process of metal working
08/17/1999US5937687 In a tube bending machine
08/17/1999CA2172876C Method of manufacturing a c-shaped rail with profiled surfaces
08/11/1999EP0934782A2 Drive system for the jaws of forming presses
08/11/1999EP0934131A1 Bending machine
08/11/1999EP0843605B1 Sheet metal bending device
08/10/1999US5934544 Apparatus and method for making an automotive bumper beam
08/10/1999US5934134 For bending sheet panels
08/10/1999US5934133 Bending press system
07/1999
07/29/1999WO1999037418A1 Flanging device with flanging head
07/29/1999WO1999037417A1 Device for step-by-step bending of metal strips or sheets
07/29/1999DE19802589A1 Step-by-step bending device for metal strips and sheets
07/27/1999US5927453 Device for overload protection and braking of a machine part driven by a motor
07/27/1999US5927135 Bending machine
07/27/1999US5927134 Bending machine
07/27/1999US5926930 Apparatus for producing rigid elongated member for use in vehicles
07/27/1999CA2113708C Upper tool holder apparatus for press brake
07/21/1999EP0929852A1 Folding line generation method for bending and bending system based thereon
07/20/1999US5924320 Device for unfolding a shaped metal article and a method for unfolding the same
07/15/1999DE19800391A1 Slotted pin production process
07/14/1999CN2328449Y Bending and cutting machine for plate materials
07/07/1999CN2327466Y Apparatus for electrode plates shaping electric dust collector
07/01/1999WO1999032241A1 Method and system for bending
06/1999
06/30/1999EP0925127A2 Strip shaping mechanism
06/30/1999EP0925126A1 Machining centre for processing flat workpieces, provided with a segment distributed hold-down
06/30/1999CN1221360A Sheet metal bonding machine with offset press rollers
06/23/1999EP0924005A2 Improvements introduced in Modular tabletop systems for connecting metal pieces by flanging
06/22/1999US5913931 Extended length rotary bending and forming devices and methods for manufacture thereof
06/17/1999DE3546864C2 Sheet metal bending press
06/16/1999EP0921874A1 Improved bending pressing machine, particularly in the processes of metal working
06/16/1999EP0841998B1 Roll forming apparatus and method
06/10/1999DE19754171A1 Rolled stock producing method, to produce stock with longitudinally varying cross-section and several walls
06/09/1999EP0920931A2 Apparatus for bending a metal sheet
06/02/1999EP0919302A2 Roll bending machine with selective digital control device
06/02/1999EP0919301A1 Back gauge device
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