| Patents for B21J 13 - Details of machines for forging, pressing, or hammering (6,375) |
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| 05/04/1991 | CA2026534A1 Apparatus for attaching surgical suture components |
| 05/02/1991 | DE3935787A1 Spindle press with adjustable sliding clearance for ram - which is provided by hydraulic pistons which can be locked in required position |
| 04/10/1991 | EP0421144A2 Expanding tool |
| 04/10/1991 | EP0421143A2 Expanding tool for a shaping device |
| 04/09/1991 | US5005397 Method for providing progressive formers with quick-change tooling |
| 03/26/1991 | US5001920 Method and apparatus for manufacturing a constant velocity joint and the like |
| 03/19/1991 | US5000028 Workpiece manipulator assembly for forging machines |
| 03/19/1991 | US5000021 Load control device for use in automatic forging press |
| 03/12/1991 | US4998428 Method of cleaning stamping dies |
| 03/06/1991 | EP0414670A1 A tool ring, a method of making it, and a holding tool for use in the performance of the method. |
| 03/05/1991 | US4996863 Radially convergent hot forging apparatus and method |
| 02/06/1991 | EP0411300A2 Tool changing device for swaging and kneading machines |
| 02/06/1991 | EP0410960A1 Device for the ejection of pressings out of a press tool. |
| 01/25/1991 | CA2016692A1 Quick change structure for trim die |
| 01/24/1991 | DE3923716A1 Burr removal on forgings moulded using two axially movable rams - has burr formed in gap between ram and mould face and removed by closing gap by moving ram towards mould |
| 01/15/1991 | US4984445 Ceramic isothermal forging die |
| 01/08/1991 | US4982596 Die for manufacturing a fastener blank |
| 01/02/1991 | EP0406202A2 A clamping device for making nails |
| 12/19/1990 | CN1010838B Method for producing near net ring gear forgings |
| 12/18/1990 | US4977773 Double action die set for closed forging |
| 12/13/1990 | WO1990014903A1 Improved automatic installation for transferring and forging any metal components |
| 11/29/1990 | DE3913564A1 Drop forge press with lower and upper U=shaped tool holders - has single multipart tools located in U=shaped recesses and guide surfaces to facilitate redn. in working tolerances |
| 11/07/1990 | CN2065104U Hydraulic heavy-duty flat forging press |
| 11/06/1990 | US4967586 Upsetting press for upsetting or swaging wire segments of predetermined lengths into balls or the like |
| 10/30/1990 | US4966274 Control system for a walking beam assembly of a forging press |
| 10/17/1990 | EP0392371A2 Drive for a punch-sided ejector slidably mounted in a ram of a mechanical forming press |
| 10/10/1990 | CN1009947B Mould lubricant exbausting apparatus for knocking-out mechanism |
| 10/09/1990 | US4961337 Parts unloader for top delivery dies |
| 10/09/1990 | US4961336 Manipulator for metal ingots |
| 09/26/1990 | CN2062661U Multifunctional pincher for forging machine |
| 09/25/1990 | CA1274410A1 Fastener |
| 09/12/1990 | CN1009532B Combined multifunction hammer shaft of forging hammer |
| 08/23/1990 | DE3912011A1 Rolled stock processing machine |
| 08/22/1990 | EP0383111A2 Drive for a punch-sided ejector slidably mounted in a ram of a mechanical forming press |
| 08/01/1990 | EP0379937A2 Horizontal extrusion press |
| 07/12/1990 | DE3900668A1 Press for laterally upsetting workpieces, in particular slab-upsetting press |
| 06/05/1990 | US4930334 Quick change structure for trim die |
| 05/09/1990 | EP0367113A2 Bolster apparatus for press-forming workpieces |
| 05/08/1990 | CA1268644A1 Hot-forging small inner diameter powdered metal parts |
| 04/25/1990 | EP0364907A2 Process and device to determine the geometry of an object |
| 04/18/1990 | CN1041298A Blank distributor |
| 04/18/1990 | CA2000847A1 Method and apparatus for determining the geometry of a body |
| 04/12/1990 | DE3833072A1 Tool protection for the tools of cutting or forming presses, mainly for metalworking |
| 04/05/1990 | WO1990003234A1 Material separator |
| 03/27/1990 | US4910993 Progressive former and method of producing same |
| 03/21/1990 | EP0359386A2 Method and apparatus for press-forming intricate metallic shapes such as spool valve elements |
| 03/21/1990 | EP0358784A1 Apparatus for manufacturing a constant velocity joint |
| 03/13/1990 | US4907436 Step forging press |
| 03/13/1990 | CA1266718A1 Recovery of stored data from mutilated tape data blocks |
| 03/08/1990 | WO1990002006A1 Method and instrument for making blanks from slab |
| 02/20/1990 | US4901556 Loading a segmented die and ejecting a component formed therein |
| 02/14/1990 | EP0354428A2 Quick-change tooling for progressive formers and the like |
| 02/13/1990 | US4899570 Apparatus and method of rotary forging with induction heating |
| 02/07/1990 | EP0353231A1 Process and apparatus for forging one piece track roller rim. |
| 02/06/1990 | US4898225 Mold lubricant exhausting apparatus for knocking-out mechanism |
| 02/06/1990 | US4898017 Quick-change tooling for progressive formers and the like |
| 01/30/1990 | US4896524 Device for the ejection of pressings out of a press tool |
| 01/08/1990 | EP0353231A4 Process and apparatus for forging one piece track roller rim. |
| 12/19/1989 | US4887448 Knockout pin apparatus |
| 12/12/1989 | US4885927 Method and apparatus for press forming intricate metallic shapes such as spool valve elements |
| 11/23/1989 | DE3817117A1 Apparatus for handling, in particular transporting, workpieces between two neighbouring working stations |
| 11/09/1989 | DE3814139A1 Transfer device for the workpieces on a press |
| 11/08/1989 | EP0340543A2 Progressive former and method of producing same |
| 11/07/1989 | US4878374 Five bar linkage mechanism |
| 11/07/1989 | US4878373 Peel assembly for an ingot manipulator |
| 10/18/1989 | CN1036349A Combined multifunction hammer shaft of forging hammer |
| 10/17/1989 | US4873860 Lifting beam assembly for a forming press |
| 10/11/1989 | CN1005393B Press with chucking plates for sets of tools |
| 10/04/1989 | EP0334976A1 Part-shaping apparatus by flow forging and sheet-metal rubber forming |
| 10/04/1989 | EP0334872A1 Loading a segmented die and ejecting a component formed therein |
| 10/04/1989 | CN2045338U Forging hammer base frame utilizing springing rubber shock absorbing pad |
| 09/27/1989 | CN1035792A Manipulator equipment for automatic foil-hammering machine |
| 09/26/1989 | CA1260314A1 Anvil apparatus for a press |
| 09/19/1989 | US4866975 Die positioning mechanism |
| 09/06/1989 | EP0330914A1 Device for ejecting work pieces from dies in a forming press |
| 08/30/1989 | EP0110918B1 Method and apparatus for making steering rack bars |
| 08/29/1989 | US4860571 Power press with improved cushioning system |
| 08/15/1989 | US4856167 Method for producing near net ring gear forgings |
| 08/10/1989 | DE3802266A1 Press |
| 07/12/1989 | EP0323931A1 Method and tooling equipment for making forged rivets |
| 06/28/1989 | CN2040014U Suspension feeding and discharging machine |
| 06/14/1989 | EP0320488A2 Clamping device for press tools |
| 06/06/1989 | US4836730 Fastener |
| 06/01/1989 | WO1989004734A1 Workpiece position indexing apparatus |
| 05/24/1989 | CN2038037U Pendent-type forging operating machine |
| 05/23/1989 | US4831864 Forging machine |
| 05/17/1989 | EP0316131A2 Metal mold for molding or coining or sizing a sintered part |
| 05/05/1989 | WO1989003734A1 A tool ring, a method of making it, and a holding tool for use in the performance of the method |
| 05/03/1989 | EP0314267A2 Tool for cold forging tubular members |
| 04/11/1989 | US4819474 Metal forming machine having a stroke position adjusting assembly |
| 04/06/1989 | WO1989002797A1 Improvements in or relating to rotary forging machines |
| 04/06/1989 | WO1989002793A1 Power press with improved cushioning system |
| 04/06/1989 | DE3831184A1 Integrated control for a manipulator, and open-die forging press interacting with the latter and a manipulator with a measuring device for this purpose |
| 04/04/1989 | CA1251993A1 Press with chucking plates for sets of tools |
| 03/28/1989 | US4815311 Forging manipulator |
| 03/22/1989 | EP0307883A2 Integrated circuit for a manipulator as well as a coorperating free-form powerpress and a manipulator with a measuring device therefor |
| 03/21/1989 | US4813263 Forging machine |
| 03/08/1989 | EP0305437A1 A manipulator for metal ingots. |
| 03/02/1989 | DE3740815A1 Forging hammer, in particular drop hammer |
| 03/01/1989 | EP0304459A1 Peel assembly for an ingot manipulator. |