Patents for B21D 45 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass (3,285) |
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06/04/2002 | US6397715 Slug-retaining punch press tool |
05/22/2002 | EP1089837B1 Tool holder with punching units |
05/16/2002 | DE10150101A1 Press for changing workpiece has release device provided to separate clutch in case value of power continuously measured from reference value deviates only from fixed value |
05/08/2002 | DE10050618A1 Auswerfersystem für eine Presse Ejector system for a press |
05/07/2002 | CA2062893C Punch assembly |
05/02/2002 | WO2002034426A1 Metal mold device |
05/02/2002 | EP1200211A1 Method and apparatus for forming opposing holes in a side wall of a tubular workpiece |
04/18/2002 | WO2002030592A1 Ejector system for a press |
04/11/2002 | DE10045747A1 Press piece comprises housing section which deviates from circular shape for enabling non-positive connection between press piece and assembly tool |
04/10/2002 | EP1195207A2 Turret punch press |
04/04/2002 | US20020038589 Turret punch press |
04/03/2002 | EP0861133B1 Razor blade manufacture |
04/03/2002 | CN1081964C Rotary Valve controlled apparatus for stripping cans from bodymaking ram |
03/14/2002 | US20020031424 Workpiece-transfer device |
03/13/2002 | CN1080608C Apparatus and method for ejecting workpieces from forming machines |
03/13/2002 | CN1080607C Punch-head assembly as well as platen thereof, and method for punching cutting guiding hole on platen |
01/31/2002 | US20020011396 Guiding and stacking system for sheet metal parts |
01/30/2002 | EP0764065B1 Apparatus and method for ejecting workpieces from forming machines |
01/24/2002 | WO2002005983A1 Method and apparatus for removing a plurality of die-cutted products from an operating area of a die-cutting apparatus having multiple dies |
01/24/2002 | US20020007714 Punch holder apparatus |
12/13/2001 | US20010049954 Method and apparatus for detecting mis-stripping in a punch press machine |
12/12/2001 | EP0809549B1 Method in a sheet metal work centre and a sheet metal work centre |
11/28/2001 | CN2461678Y Appts. for returning material of circuit board punch |
11/07/2001 | CN2458104Y Ejecting mechanism for flat press |
11/06/2001 | US6311594 Punch guiding apparatus and stripper plate used therefor |
10/23/2001 | US6305209 Workpiece blanking apparatus |
10/23/2001 | CA2236890C Razor blade manufacture |
10/10/2001 | EP1140385A1 Rotary punching apparatus |
10/03/2001 | CN1072044C 剃刀刀片制造 Razor blade manufacturing |
09/26/2001 | CN1314297A Plate piece stacking machine |
09/18/2001 | US6289709 Gutter outlet punch |
08/23/2001 | DE10005752A1 Assembly for stacking large sheet plate components from a press station has direction change points to divert the pressed workpieces into two or more stacking belts in a start/stop feed to gripping transfer units or for manual removal |
08/22/2001 | EP1125651A1 Method and device for the manufacture of extruded products |
08/21/2001 | US6276247 Adjustable punch assembly with releasable locking |
08/16/2001 | EP1123762A2 Stacking device for sheet metal parts |
08/09/2001 | CA2334434A1 Guiding and stacking system for sheet metal parts |
07/19/2001 | WO2001051234A1 Device mounted onto a slider crank for generating a displacement of a part mounted onto the slide in relation to the latter |
06/13/2001 | CN1066988C Apparatus for forming metal can |
05/31/2001 | US20010002076 Sleeve-type gas spring |
05/17/2001 | WO2001034320A1 Rotary punching apparatus |
04/24/2001 | US6220138 Punch press |
04/11/2001 | EP1089837A1 Tool holder with punching units |
03/06/2001 | US6196103 Punch guide assembly |
02/08/2001 | WO2001008829A1 Method and apparatus for forming opposing holes in a side wall of a tubular workpiece |
01/02/2001 | US6167742 Drawing and coining die for manufacturing metal containers and the like |
12/13/2000 | EP1058605A1 Quick change adjustable punch tool assembly and method of adjustment |
11/28/2000 | US6152005 Method of punching a punch guide hole in a blank holder of a punch assembly a punch assembly and a blank holder |
11/22/2000 | CN1273888A Hydraulic punching head mechanism with press unit for punching machine |
11/21/2000 | CA2189541C Rotary valve controlled apparatus for stripping cans from bodymaking ram |
11/16/2000 | DE19922011A1 Ram-side ejector for shaping machine has common drive for ram and ejector, eccentric shaft connected to connecting rod, ram with different degree of eccentricity from ejector eccentric shaft |
11/08/2000 | EP1050350A1 Universal puncher holder adaptor for punching machines |
10/24/2000 | US6134938 Forming tools |
10/11/2000 | EP1043093A2 Workpiece blanking apparatus |
09/19/2000 | US6119568 Piercing apparatus |
08/10/2000 | WO2000045975A1 Device and method for stripping a can body from a punch, and can body made therewith |
08/09/2000 | CN2390716Y Demoulding ejecting spring apparatus |
07/12/2000 | EP0784521B1 Rotary valve controlled apparatus for stripping cans from bodymaking ram |
07/06/2000 | DE19859925A1 Hole residue removal process, involving inserting device before making hole, holding residue in defined position, and removing tool with workpiece and residue |
07/04/2000 | US6082166 Drawing and coining die for manufacturing metal containers and the like |
05/31/2000 | CN1254627A Ejecting device for punching machine |
05/30/2000 | US6067830 Method and apparatus for forming opposing holes in a side wall of a tubular workpiece |
05/23/2000 | US6065381 Apparatus for cutting tie bars of semiconductor packages |
05/04/2000 | DE3943747C2 Stamping press with lower die inserted |
05/03/2000 | EP0997209A2 Apparatus for removal of items from a punching tool |
05/02/2000 | US6055895 Punched plate material carrying-out system |
04/26/2000 | CN1251619A Apparatus and method for cooling hot rolled steel rod |
04/12/2000 | EP0992317A2 Workpiece-transfer device |
04/11/2000 | US6047621 Quick change adjustable punch tool assembly and method of adjustment |
04/04/2000 | CA2190621C Apparatus and method for ejecting workpieces from forming machines |
02/24/2000 | WO2000009301A1 Punch guide assembly |
02/23/2000 | EP0980724A2 Punch guide assembly |
02/22/2000 | US6026670 Apparatus for use in forming can bodies |
02/09/2000 | EP0978333A2 Punch holder apparatus |
02/09/2000 | CN2362617Y Impact type pressure booster |
01/26/2000 | EP0973952A1 Apparatus and method for cooling hot rolled steel rod |
01/19/2000 | EP0972584A2 Forming tools |
01/05/2000 | EP0726836B1 Adjustable length punch set assembly |
01/05/2000 | CN2356776Y Automatic ejecting device for cutting plate |
12/30/1999 | DE19827850A1 Tool holder with stamping punch units |
12/29/1999 | WO1999067039A1 Tool holder with punching units |
12/29/1999 | CA2336066A1 Tool holder with punching units |
12/28/1999 | US6006566 Method and device for removing a slug from a hydroforming tool |
12/07/1999 | CA2154739C Punch unit |
11/30/1999 | US5992280 Perforator for metal plate |
11/16/1999 | US5984604 Base forming of can bodies |
11/02/1999 | US5974852 Lifter unit for transfer die |
10/26/1999 | US5970775 Method and apparatus for forming cup-shaped container bodies |
10/13/1999 | EP0949020A2 Piercing apparatus |
10/12/1999 | US5964026 Sheet metal work center and method therefor of fabricating worksheets |
09/08/1999 | EP0940200A2 Method and device for removing a slug from an internal high-pressure forming tool |
09/05/1999 | CA2264491A1 Method and device for removing a slug from a hydroforming tool |
09/02/1999 | WO1999043474A1 Quick change adjustable punch tool assembly and method of adjustment |
08/31/1999 | US5943934 Cutting device with movable punch |
08/10/1999 | CA2114887C Punching die |
08/04/1999 | EP0933553A2 Sleeve-type gas spring |
08/04/1999 | EP0933149A2 Method and apparatus for separating punched out parts and part distortion eliminating method |
07/07/1999 | EP0927584A1 Punch assembly |
07/01/1999 | DE19809519C1 Method of removal of core from pressure molded hollow workpiece |
06/30/1999 | CN1220922A Can forming apparatus |
06/30/1999 | CN1043854C Feed mechanism of metal can forming apparatus |