| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
|---|
| 02/20/1990 | US4901427 Punch press |
| 02/13/1990 | US4899447 Panel punch |
| 02/07/1990 | EP0353479A1 Method and apparatus for reducing the press load of a cutting press with positive stops |
| 02/06/1990 | US4897909 Method for wheel manufacture by punch forming |
| 02/06/1990 | CA1265568A1 Linear stepping motor |
| 01/31/1990 | EP0353008A2 Fluid-pressure operated punch |
| 01/24/1990 | EP0351963A1 Strip retainer and stripper for stamping and forming machine |
| 01/16/1990 | US4893536 Center punching apparatus |
| 01/16/1990 | CA1264420A1 Press tool with removable working parts under the press |
| 01/03/1990 | CN1038416A Improved long wearing punch |
| 01/02/1990 | US4890475 Prestressed hydraulic press |
| 12/20/1989 | CN2049567U Two-cone die for punching and cutting |
| 12/14/1989 | WO1989011932A1 Composite tool |
| 12/14/1989 | WO1989011931A1 Hole punching unit |
| 12/14/1989 | DE3820051A1 Exchanging device with tools |
| 12/14/1989 | DE3819369A1 Hole punch |
| 12/05/1989 | US4884484 Strip retainer and stripper for stamping and forming machine |
| 11/30/1989 | DE3817824A1 Punching apparatus with a plurality of punch bails |
| 11/29/1989 | EP0343661A2 Method and apparatus for making welded punched products |
| 11/29/1989 | EP0343377A1 Method of creating an assembly of preforms to repair conducting paths, and apparatus for carrying out the method |
| 11/14/1989 | US4879894 Press with movable workpiece support carrier |
| 11/02/1989 | EP0339247A1 Hydraulic steering device for the drive control of a double-acting hydraulic cylinder |
| 10/31/1989 | US4878055 Remote control device |
| 10/25/1989 | EP0338803A1 Stamping and forming machine having improved pilot pins |
| 10/25/1989 | EP0338297A2 Transporting device for a stamping machine |
| 10/24/1989 | US4875274 Method of cutting metal stud and bending and securing same to form angel member |
| 10/19/1989 | WO1989009951A1 High-speed press control system |
| 10/18/1989 | EP0245371B1 Support system for blanking press |
| 10/11/1989 | EP0335939A1 Hydraulic drive system |
| 10/10/1989 | US4872369 Torsional vibration damper having a roll spun housing and other improvements |
| 10/04/1989 | CN2045334U Hydraulic hole opening machine |
| 10/04/1989 | CN2045333U Punching machine for punching channel and coiling |
| 09/28/1989 | DE3907687A1 Punching (stamping) machine |
| 09/27/1989 | EP0334767A1 Punching apparatus with floating die |
| 09/27/1989 | EP0334766A1 Punching and cutting tools for metal profiles |
| 09/26/1989 | US4869141 Punch press with rotary ram and method of operating same |
| 09/21/1989 | WO1989008877A1 Signature analysis control system for a stamping press |
| 09/20/1989 | EP0332774A2 Rotary cutting and forming apparatus |
| 09/20/1989 | CN2044775U Punching machine for core of disk-type electrical motor |
| 09/05/1989 | US4862782 Turret punch press tool assembly |
| 09/05/1989 | US4862717 Punch-bending machine for wires or strips |
| 08/30/1989 | EP0329724A1 Tooling for forming machines having improved guidance, tool mounting, and pilot pin systems |
| 08/30/1989 | EP0329679A1 Cylinder assembly, especially for punching or nibbling machines |
| 08/30/1989 | CN2043530U Low-temperature stamping-die |
| 08/23/1989 | CN2043143U Miniature hand-operated, power-driven dualpurpose multifunctional puncher |
| 08/22/1989 | US4859828 Process and installation for producing workpieces |
| 08/16/1989 | EP0328473A1 Apparatus for cutting segments for radius elbows |
| 08/16/1989 | EP0327621A1 Electro-discharge machining electrode and method of forming |
| 08/16/1989 | EP0198055B1 System for monitoring the position of a machine component |
| 08/15/1989 | US4856399 Apparatus for blanking thin sheets using a punch having localized regions of hand and soft elastic material |
| 08/08/1989 | US4854201 Valve hole punching apparatus for a wheel |
| 08/01/1989 | CA1258027A1 Wash arm and method and apparatus for forming the same |
| 07/26/1989 | EP0325442A2 Panel punch |
| 07/26/1989 | EP0325121A2 Anchoring piece |
| 07/19/1989 | EP0324117A1 Method for controlling the positioning of the punch in a punch press |
| 07/13/1989 | WO1989006184A1 Apparatus and method for punching a foil or such sheet-like material |
| 07/12/1989 | EP0323673A1 Apparatus and method for punching a foil or such sheet-like material |
| 07/12/1989 | CN1033761A Apparatus for correctly feeding continuous strips with a shaped side outline to blanking machines |
| 07/11/1989 | EP0327621A4 Electro-discharge machining electrode and method of forming. |
| 07/04/1989 | US4843931 Punch and die system |
| 06/29/1989 | WO1989005699A1 Method of manufacturing diaphragm springs |
| 06/29/1989 | DE3841926A1 Apparatus for punching stator and/or rotor laminations for electric machines |
| 06/27/1989 | CA1256512A1 Welding machine for welding tongues onto sheet-metal parts |
| 06/20/1989 | US4839952 Process for manufacturing toothed parts |
| 06/08/1989 | DE3805846C1 Tool arrangement for making oblique cuts in metal sheets by fine blanking or punching |
| 06/08/1989 | DE3739675A1 Transportable hydraulic punch with tool-centring rings in connection with exchangeable tool inserts in which the punching falls out downwards |
| 06/06/1989 | US4837656 Malfunction detector |
| 06/06/1989 | US4836071 Modular punch apparatus for punching complex shapes from a metal ribbon or tape |
| 06/06/1989 | US4836009 Upper tool support for a stamping machine or the like |
| 06/06/1989 | CA1255180A1 Metal fastener and method of manufacture |
| 05/23/1989 | US4831865 Lower tool support for a stamping machine or the like |
| 05/23/1989 | US4831698 Method of attaching a female element to a panel |
| 05/11/1989 | DE3835566A1 Verfahren und vorrichtung zum befestigen eines hohlkoerpers an einem blech od. dgl. Method and device for attaching a hohlkoerpers on a plate od. Like. |
| 05/11/1989 | DE3834768A1 Bremsschuhrippe und verfahren zu ihrer herstellung Brake shoe rib, and processes for their preparation |
| 05/10/1989 | EP0315281A2 A device for working on work-pieces by means of pressure |
| 05/09/1989 | US4827758 Upper tool support for a stamping machine or the like |
| 05/02/1989 | US4825739 Punch system for perforating plastic sheets |
| 04/26/1989 | EP0313142A2 Apparatus for correctly feeding continuous strips with a shaped side outline to blanking machines |
| 04/25/1989 | US4823658 Punch presses |
| 04/20/1989 | WO1989003484A1 Hydraulique drive system |
| 04/18/1989 | US4821615 Slug retainer for the die assembly of a stamping and forming machine |
| 04/18/1989 | US4821614 Programmable magnetic repulsion punching apparatus |
| 04/18/1989 | US4821556 Stamping and forming machine having improved pilot pins |
| 04/18/1989 | US4821475 Duct mounting structure for prefabricated curtain wall with air conditioning system |
| 04/12/1989 | EP0311326A2 Precision punching apparatus |
| 04/12/1989 | EP0310908A2 Punching machine for sheet metal |
| 04/11/1989 | US4819776 Roller cage for overrunning clutches |
| 04/11/1989 | US4819476 Tooling for forming machines having improved guidance, tool mounting, and pilot pin systems |
| 04/11/1989 | US4819325 Method of forming electro-discharge machining electrode |
| 04/06/1989 | WO1989002794A1 Apparatus and method for trimming a can body |
| 04/05/1989 | EP0309776A2 Covering for construction elements and its manufacturing process |
| 03/30/1989 | DE3731102A1 Device for adjusting the backlash between gears of the change-gear train on the dividing attachment of a notching press |
| 03/22/1989 | EP0243407A4 Improvements to punch presses. |
| 03/15/1989 | CN2034092U Nobbing dicing and forming device of lead wire |
| 03/08/1989 | EP0306380A1 Stepped tool for piercing a hole in a work piece by driving the tool axially into the work piece |
| 03/07/1989 | US4809576 Scrap removal system for stamping and forming machine and sensor apparatus for detecting movement between conveyor belts |
| 03/01/1989 | EP0304905A2 Hydraulic press |
| 02/23/1989 | DE3726572A1 Processing device for large-area sheet-metal blanks |
| 02/21/1989 | US4805440 Punching or stamping machine |
| 02/08/1989 | EP0302283A2 Torsional vibration damper having a roll spun housing and other improvements |