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Class Information
Number: 72/389.6
Name: Metal deforming > By relatively movable offset tool-faces (e.g., for bending or drawing) > With tool motion in fixed path > Between and co-planar with opposed tools > Fluid pressure actuated (i.e., hydraulically or pneumatically actuated)
Description: Device including a mechanism driven by a gaseous or liquid medium to move one of the tools.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7503200 |
Method for correcting a folding operation and folding press |
Mar. 17, 2009 |
| 7448242 |
Method for securing a machine tool and opto-electronic sensor for carrying out such a method |
Nov. 11, 2008 |
| 7412861 |
Device for monitoring an area of coverage on a work tool |
Aug. 19, 2008 |
| 7401491 |
Brake die inserts |
Jul. 22, 2008 |
| 7340930 |
Method for securing a machine tool and opto-electronic sensor for carrying out such a method |
Mar. 11, 2008 |
| 7047789 |
Pipe bending apparatus |
May. 23, 2006 |
| 7036345 |
Method of monitoring ram speed of press brake, press brake using the method, and method and apparatus for controlling ram position of press brake |
May. 2, 2006 |
| 6959581 |
Press brake and ram movement method for press brake |
Nov. 1, 2005 |
| 6959573 |
Bending method and device therefore |
Nov. 1, 2005 |
| 6941784 |
Bending method and device therefor |
Sep. 13, 2005 |
| 6871521 |
Method for operating a bending press and bending press, especially a folding bending press |
Mar. 29, 2005 |
| 6823707 |
Mobile flange press and method |
Nov. 30, 2004 |
| 6820455 |
Metal working machine |
Nov. 23, 2004 |
| 6807835 |
Bending method and bending system |
Oct. 26, 2004 |
| 6807839 |
Cold folding method for a hollow tube of magnesium |
Oct. 26, 2004 |
| 6751993 |
Bending method and bending system |
Jun. 22, 2004 |
| 6662610 |
Method and system for bending |
Dec. 16, 2003 |
| 6651471 |
Self-centering oscillating fork, particularly for four-point angle measuring in a press brake |
Nov. 25, 2003 |
| 6644080 |
Press brake worksheet positioning system |
Nov. 11, 2003 |
| 6637252 |
Manufacturing device, in particular a folding press |
Oct. 28, 2003 |
| 6571589 |
Bending machine and its operation method |
Jun. 3, 2003 |
| 6474124 |
Cold steel cambering apparatus and method |
Nov. 5, 2002 |
| 6389860 |
Control system for a press brake |
May. 21, 2002 |
| 6128942 |
Bending machine |
Oct. 10, 2000 |
| 6085570 |
Powered, portable, metal bending apparatus |
Jul. 11, 2000 |
| 5921132 |
Portable tube bender |
Jul. 13, 1999 |
| 5901601 |
Method and apparatus for bending malleable plates |
May. 11, 1999 |
| 5884519 |
Automatic hydraulic pin up system for a pipe bending apparatus |
Mar. 23, 1999 |
| 5836196 |
Device for forming roofing tiles |
Nov. 17, 1998 |
| 5829288 |
Adaptive folding |
Nov. 3, 1998 |
| 5724852 |
Portable small rebar bending machine |
Mar. 10, 1998 |
| 5661994 |
Tube shaping apparatus |
Sep. 2, 1997 |
| 5615572 |
Hydraulic tube bender |
Apr. 1, 1997 |
| 5600993 |
Flexible shoe for a bending machine |
Feb. 11, 1997 |
| 5598736 |
Traction bending |
Feb. 4, 1997 |
| 5557964 |
Double plane bend former |
Sep. 24, 1996 |
| 5528921 |
Tube bending appartus |
Jun. 25, 1996 |
| 5469730 |
Pipe bending machine |
Nov. 28, 1995 |
| 5426966 |
Hydraulically operated press brake |
Jun. 27, 1995 |
| 5408858 |
Bending machine utilizing controlled expandable pressure device to apply uniform pressure to work material |
Apr. 25, 1995 |
| 5377521 |
Method for propeller straightening |
Jan. 3, 1995 |
| 5367770 |
Method for embossing indented door light opening edge |
Nov. 29, 1994 |
| 5326249 |
Apparatus for bending lamellar workpieces |
Jul. 5, 1994 |
| 5315856 |
Apparatus for propeller straightening |
May. 31, 1994 |
| 5253499 |
Method for straightening coupling shafts |
Oct. 19, 1993 |
| 5022129 |
Crankshaft-forming apparatus and method |
Jun. 11, 1991 |
| 4920780 |
Hydraulic ram rail bender |
May. 1, 1990 |
| 4912957 |
Smart straightening press |
Apr. 3, 1990 |
| 4804031 |
Tire removal apparatus |
Feb. 14, 1989 |
| 4790168 |
Pipe crimping and cutting |
Dec. 13, 1988 |
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