| Patents for B21J 9 - Forging presses (2,855) |
|---|
| 01/19/1993 | WO1993001905A1 Method of plastic forming |
| 01/19/1993 | CA2091898A1 Method of plastic forming |
| 01/12/1993 | US5177991 Method of and apparatus for coining tapers at opposite ends of a sleeve member |
| 01/07/1993 | DE4122158A1 Production of hollow rivets from wire - has tool which forms rivet bore and rivet head in one operation, using mandrel arrangement |
| 01/05/1993 | US5176075 Machines for handling or working materials in laminar or sheet form |
| 12/08/1992 | US5168744 Apparatus for replacing pressing dies in upsetting press |
| 11/18/1992 | CN2122018U Silience impact booster and buffering support seat |
| 11/18/1992 | CN2122017U Multipurpose hydraulic bot pick forging press |
| 10/21/1992 | EP0509610A1 Procedure for production of vehicle wheels |
| 10/20/1992 | CA2066285A1 Procedure for production of vehicle wheels |
| 10/15/1992 | DE4111834A1 Locking device for ram of press - has self-locking bolt and nut driven by motor for both locking and release |
| 10/14/1992 | CN1065224A Punch pressing mechanism of forging machinery |
| 10/01/1992 | DE4125906A1 Automatic tool exchange system for forming press - has tool exchange station with support for tool transportation and tool clamp devices |
| 09/24/1992 | DE4109407A1 Precision forging press with hydraulically actuated tool - forges workpiece in single stroke of press |
| 09/16/1992 | CN1064424A Method for operating press edger |
| 09/02/1992 | EP0501211A2 Method of operating an upsetting press |
| 08/18/1992 | US5138866 Progressive former and method of producing same |
| 08/13/1992 | DE4103495A1 Cam gear block - has cam discs held on fastening discs by frictional engagement |
| 08/12/1992 | CN1017783B Die-revolving high-speed cold header with multiple working positions |
| 07/07/1992 | US5127252 Apparatus for the working of wire pieces and the use of such apparatus |
| 05/20/1992 | CN1061171A Plate slab upsetting press for hot wide band rolling mill |
| 05/20/1992 | CN1061170A Upsetting press for reducing width of plate slab in hot wide band roughing train |
| 05/20/1992 | CN1061169A Device for guying and compensating pressing tool support and crankcase of upsetting press |
| 05/13/1992 | EP0484783A2 Device for bracing and balancing the press tool holder and crankcase in an upsetting press |
| 05/13/1992 | EP0484782A2 Upsetting press for reducing the width of slabs in hot wide strip roughing trains |
| 05/13/1992 | EP0484781A2 Slab upsetting press for hot wide strip rolling mills |
| 04/21/1992 | US5105649 Method of producing forging machines |
| 04/01/1992 | CN1059855A Device for exchanging pressing tool of upsetting press |
| 03/25/1992 | EP0476468A1 Device for exchanging the pressing tools of a pressing machine |
| 03/25/1992 | EP0476350A1 Swaging Machine |
| 03/19/1992 | WO1992004144A1 Press counterbalance system |
| 03/19/1992 | DE4029429A1 Compression press tool change - has trolley with lifting frame and tool holder and trolley to carry the tools for an automated operation |
| 03/11/1992 | EP0473797A1 Device for hydro-mechanical forming of articles |
| 03/10/1992 | CA1296931C Tool for cold forging tubular members |
| 02/18/1992 | US5088312 Upsetting device for upsetting the ends of elongated workpieces such as wire pieces |
| 01/07/1992 | US5077999 Flying upsetting press |
| 01/02/1992 | DE4020465A1 Screwed spindle press assembly - has clearance between threads of spindle and nut arranged to form hydraulic bearing |
| 10/31/1991 | WO1991004117A3 Billet pre-piercer apparatus and method |
| 10/08/1991 | US5054301 Method of forming metallic product |
| 10/03/1991 | WO1991014523A1 Device for hydro-mechanical forming of articles |
| 09/12/1991 | DE4007407A1 Ingot or billet upsetting press |
| 09/11/1991 | EP0445898A2 Slab upsetting press with movable frame |
| 08/27/1991 | US5042362 Hydraulic control system for the drive control of a double-acting hydraulic cylinder |
| 07/25/1991 | DE4032602C1 Axial adjustment spacer for bearings - has oversize blank placed in press and upset between plates |
| 07/02/1991 | US5028798 Method and apparatus for determining the geometry of a body |
| 05/07/1991 | US5013281 Monobloc hub, particularly for an automotive vehicle |
| 04/23/1991 | US5009091 Press counterbalance system |
| 04/16/1991 | US5007281 Plastic working method and apparatus |
| 04/16/1991 | US5007274 Billet pre-piercer apparatus and method |
| 04/09/1991 | US5005397 Method for providing progressive formers with quick-change tooling |
| 04/04/1991 | DE3931581A1 Performance improvement for stamping and shaping press - equalises energy losses by mechanically coupled masses |
| 04/03/1991 | EP0268681B1 Double action screw-press |
| 03/21/1991 | WO1991004117A2 Billet pre-piercer apparatus and method |
| 03/19/1991 | US5000026 Long forging machine for the forging of round or sharp-edged bars |
| 03/19/1991 | US5000021 Load control device for use in automatic forging press |
| 03/12/1991 | US4998344 Method of manufacturing a hub |
| 01/16/1991 | EP0407658A1 Clamping and compressing or hammering device for temporarily clamping workpieces, such as pieces of wire, for the purpose of processing same. |
| 01/16/1991 | EP0407657A1 Compression device for compressing the ends of elongated workpieces such as pieces of wire and application of such a device in a wire-working machine for manufacturing pins |
| 01/15/1991 | US4984443 Plastic working method and apparatus |
| 01/08/1991 | US4982589 Swiveling type plastic working machine |
| 12/19/1990 | CN2067615U Multifunctional hydraulic forging machine |
| 12/18/1990 | US4977773 Double action die set for closed forging |
| 12/12/1990 | CN1047636A Quick upsetting press |
| 12/05/1990 | EP0400385A2 Flying upsetting press |
| 12/04/1990 | US4975034 Reversible displacement pumps |
| 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 |
| 11/28/1990 | CN2066361U Photoelectric protector |
| 11/22/1990 | DE3933081C1 Forge press piston seal exchange - involves lowering cylinder to disengage piston and allow access to seals |
| 11/22/1990 | DE3933079C1 Forge press cylinder maintenance - with piston rod end pushed into cylinder to give access to piston rod seals |
| 11/22/1990 | DE3933078C1 Forge press with two yoke plates - and bridge plate connected to press cylinder |
| 11/22/1990 | DE3933076C1 Vertical press for forge - has double-action piston which can be withdrawn when end plate is removed |
| 11/15/1990 | DE3915263A1 Screw spindle press with hydraulic clutch and flywheel - has hydraulic piston to control speed of operation |
| 11/13/1990 | US4969344 Press counterbalance system |
| 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 |
| 10/30/1990 | US4966023 Staged tool for boring a hole in an element by axial penetration of the tool |
| 10/18/1990 | WO1990011847A1 Press counterbalance system |
| 09/30/1990 | CA2012421A1 Counter balance for metal stamping press |
| 09/19/1990 | EP0387884A2 Stamping and forming machine having toggles for reciprocating the tooling assemblies |
| 08/23/1990 | DE3912011A1 Rolled stock processing machine |
| 08/22/1990 | EP0383578A2 Swivelling type plastic working machine |
| 07/04/1990 | EP0376050A1 RAM actuating mechanism in a press for terminating wires |
| 06/28/1990 | DE3842979A1 Method for the production of a short-shank head part |
| 06/26/1990 | US4936125 Plastic working method and apparatus |
| 06/19/1990 | US4934173 Stamping and forming machine having toggles for reciprocating the tooling assemblies |
| 06/14/1990 | WO1990006194A1 Device for cyclic deformation of continuous strip |
| 06/06/1990 | CN2057876U Clamping and rotating device of top smith anvil of forging hydraulic press |
| 05/23/1990 | EP0369789A2 Plastic working method and apparatus |
| 05/22/1990 | US4926534 Method for manufacturing a poppet valve head |
| 05/15/1990 | US4924693 RAM actuating mechanism in a press for terminating wires |
| 04/25/1990 | EP0364907A2 Process and device to determine the geometry of an object |
| 04/19/1990 | DE3934236A1 Measuring geometry of body in forging process - continuously sensing surface of rotating body and converting data with constant vol. program for use in process control |
| 04/18/1990 | CA2000847A1 Method and apparatus for determining the geometry of a body |
| 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 |
| 03/13/1990 | US4907436 Step forging press |
| 03/06/1990 | US4905495 Long forging machine for the forging of round or sharp-edged bars |
| 02/21/1990 | CN1006859B Wobble-die forging machine |
| 02/14/1990 | EP0354428A2 Quick-change tooling for progressive formers and the like |