Patents for B21K 1 - Making machine elements (7,621) |
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01/20/2000 | DE19832288A1 Manufacture of pipe connection ring |
01/20/2000 | DE19831189A1 Verfahren zur Herstellung von Blechringen A process for the production of sheet-metal rings |
01/20/2000 | CA2303377A1 Metallic shaft material diameter increasing device |
01/19/2000 | EP0972956A1 Self-restraining metal ring nuts, and processes for the production thereof |
01/19/2000 | EP0972589A2 Method for the manufacture of a compression fitting of metal |
01/19/2000 | EP0972588A2 Method for producing metal rings |
01/13/2000 | DE19829937A1 Method for producing ring-shaped forged workpieces |
01/12/2000 | EP0971117A2 Method for manufacturing piston by forging, forging die and piston |
01/12/2000 | EP0970765A2 Method for forming a workpiece by flow-turning |
01/12/2000 | CN1048312C Ultra light IC engine valve and its making method |
01/09/2000 | CA2275559A1 Method for forming a workpiece by flow-forming |
12/30/1999 | DE19905953A1 Production of metal gearwheel with layered material structure, and resultant gearwheel |
12/30/1999 | DE19828421A1 Making e.g. tires, by rolling to deform and consolidate |
12/29/1999 | WO1999067042A1 Method for producing vehicle wheels |
12/28/1999 | US6006579 Method of fabricating shaft from metal plate |
12/23/1999 | WO1999065628A1 Method for producing an inner profile or an outer profile by rotary kneading |
12/23/1999 | DE19827191A1 Verfahren zur Herstellung einer Innenprofilierung eines hülsenähnlichen metallischen Außenteils und/oder zur Herstellung einer Außenprofilierung eines metallischen Innenteils durch Rundkneten A process for producing an inner profiling of a sleeve-like metallic outer part and / or for the manufacture of an outer profile of a metallic inner member by rotary swaging |
12/22/1999 | EP0965412A1 Process for producing a TiAl-based alloy poppet valve |
12/22/1999 | CN1239172A Processing method and connection structure of joint end of reinforced special and steel for concrete |
12/21/1999 | US6004215 Fastener forming machine |
12/21/1999 | US6004120 Apparatus for manufacturing pressed powder body |
12/21/1999 | CA2102336C Process of manufacturing one-piece forged wheels |
12/16/1999 | WO1999064751A1 Method of forming a tubular member |
12/16/1999 | DE19860518A1 Scheibe für stufenlos verstellbares Toroidgetriebe Disc for continuously variable toroidal transmission |
12/16/1999 | DE19824741A1 Verfahren und Vorrichtung zur Herstellung von Bundlagern Method and apparatus for the production of flange bearings |
12/14/1999 | US6000267 Process for fabrication of rack shaft and fabrication machine therefor |
12/08/1999 | EP0962269A2 Method and apparatus for making bearing collars |
12/07/1999 | US5996229 Method and mold die for forming a spiral bevel gear from metal powders |
12/02/1999 | WO1999061749A1 Rock bolt and method of forming a rock bolt |
12/02/1999 | DE19922046A1 Forming and producing a finished crankshaft |
11/30/1999 | US5993320 Tee nut and method of manufacture |
11/30/1999 | US5992205 Means to manufacture steering rack bars |
11/28/1999 | CA2272799A1 One-piece forged steering knuckle assembly |
11/25/1999 | WO1999029450A8 Process for shaping a work piece |
11/24/1999 | EP0958456A1 Blind rivet and method of making same |
11/11/1999 | DE19912841A1 Transmission component production process e.g. for sprocket for toothed belt |
11/10/1999 | EP0955110A2 Method and device for flow-turning |
11/10/1999 | EP0954707A1 Process for manufacturing flat bearing shells |
11/09/1999 | US5980390 Die for self drilling screws |
11/09/1999 | US5979873 Method of making ball valves |
11/09/1999 | US5979216 Wear resistant tool insert |
11/09/1999 | US5979209 Method of forming a torsion bar with hexagonal heads |
11/07/1999 | CA2271115A1 Flow forming method and device |
11/03/1999 | CN1046104C Coupling for shoulder end pipes |
11/02/1999 | US5976053 Method of manufacturing traction rollers for continuously variable transmissions and traction rollers resulting therefrom |
10/28/1999 | DE19818653A1 One piece axle for trailer with strengthened axle ends |
10/28/1999 | DE19809391C1 Fixture attaching especially annular link part to pipe exterior |
10/26/1999 | US5971860 Device for detecting faulty recesses |
10/26/1999 | US5970776 Apparatus for forming a cup-shaped cage |
10/21/1999 | WO1999052666A1 Process for manufacturing a captive screw |
10/21/1999 | CA2328161A1 Process for manufacturing a captive screw |
10/20/1999 | EP0950448A2 Tool-holder for a press |
10/14/1999 | WO1999051423A1 Method for producing a throttle point |
10/14/1999 | WO1999051377A1 A tool ring and a nail machine comprising such tool ring |
10/13/1999 | EP0949435A2 Gear with integrated cluch spline and its forming method |
10/12/1999 | US5964023 Method and system of manufacturing mechanical joint |
10/07/1999 | DE19815264A1 Precision metal profile forming method |
10/07/1999 | DE19814650A1 Verfahren zur Herstellung einer Drosselstelle A process for producing a throttle point |
10/06/1999 | EP0947642A2 Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure of connecting deformed bar |
09/30/1999 | DE19911118A1 Process for manufacturing shaft fitted with drive wheel forming part of drive train |
09/29/1999 | EP0722372B1 Apparatus for forge-forming outer-ring of constant velocity joint and method thereof |
09/28/1999 | US5957777 Method of manufacturing fasteners |
09/28/1999 | US5957645 Spiral drive system for threaded fasteners |
09/28/1999 | US5956993 Forging or cold-pressing tool and method of assembling same |
09/23/1999 | WO1999047291A1 Method of manufacturing sheet metal product having groove in inner circumferential end surface thereof |
09/23/1999 | WO1999047289A1 Method of manufacturing sheet metal product having cylindrical portion at inner circumferential side thereof |
09/23/1999 | DE19911500A1 Forging device for spherical angled teeth |
09/23/1999 | DE19903360A1 Coupling hub flange making process |
09/22/1999 | EP0711212B1 Method for producing a full face fabricated vehicle wheel |
09/22/1999 | CN2339331Y Anti-skid hook with locking device |
09/21/1999 | US5953950 Method and apparatus for manufacturing disk products having helical ridges |
09/16/1999 | DE19810851A1 Ring rolling device for making rings with tubular attachment, e.g. pre-welding flange for pipe connection |
09/15/1999 | EP0941783A1 Method of manufacturing an one-piece axle body and axle body manufactured by such a method |
09/14/1999 | US5951794 Extrusing an aluminum alloy body into a hollow elongate tube, solution heat treatment and then quenching, drawing to reduce the diameter of tube at three transition sections |
09/14/1999 | US5950480 Method for manufacturing shoe for swash plate-type compressor |
09/10/1999 | CA2231579A1 Improved ball-type valve |
09/09/1999 | DE19903013A1 Drive roller bearing for infinitely variable semi circular transmission gear |
09/09/1999 | DE19809039A1 Back rolling process for tooth flanks in internal teeth of sliding coupling |
09/07/1999 | US5946963 Bevel gear hot-forging apparatus |
09/07/1999 | US5946959 Process for producing annular workpieces from metal with a profiled cross section and a rolling facility for carrying out the method |
09/07/1999 | US5946800 Method for producing rocker arms |
09/07/1999 | US5946786 Joining jig and joining member coupling method using the joining jig |
09/01/1999 | EP0583381B1 Precision forming apparatus, method and article |
08/31/1999 | US5944918 Aircraft; applying phenolic resin, curing |
08/31/1999 | US5943897 Method for making a hole in a plate and a punch for making such a hole |
08/31/1999 | US5943749 Method of manufacturing a hollow point bullet |
08/26/1999 | DE19807160A1 Method for producing cage for taper bearings |
08/25/1999 | EP0937523A2 Outer teeth, inner teeth, and producing method thereof |
08/25/1999 | EP0937522A1 Method of fabricating shaft from metal plate |
08/18/1999 | EP0764298A4 Method for manufacturing flashless metal connecting rod |
08/17/1999 | US5937692 Method for manufacturing the armature housing of a slide valve |
08/17/1999 | US5937691 Method of forming an inner flange on a sheet metal member having a cylindrical portion |
08/10/1999 | US5934851 Staked fastener having wrenchable flats |
08/10/1999 | US5934126 Internally toothed member and method and apparatus for forming the same |
08/10/1999 | US5933956 Method of making a light-metal strip wheel |
08/05/1999 | WO1999039018A1 Steel and method for making cleavable mechanical parts |
08/05/1999 | DE19900838A1 Manufacture of toroidal gear by extending gear disc |
08/04/1999 | CN1224642A Vertical tube forming method for the handle of bicycle |
08/03/1999 | US5931042 Method of forming a key portion of a sheet metal member having a cylindrical portion |
07/28/1999 | CN1224375A Method of fabricating shaft from metal plate |