| Patents for B21K 1 - Making machine elements (7,621) |
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| 10/25/1994 | US5357776 Method of forming bushing rings |
| 10/25/1994 | US5357775 Process for producing suspension component of light alloy |
| 10/19/1994 | EP0620059A1 Method of making a profile wire |
| 10/19/1994 | EP0620056A1 A method of forming a tubular structural member |
| 10/12/1994 | EP0619436A1 Prevailing torque fastener |
| 10/12/1994 | EP0619419A1 Ultra light engine valve |
| 10/12/1994 | EP0619157A1 Gear making process |
| 09/28/1994 | EP0616863A1 Method for the manufacture of a rack by cold forming, rack thus obtained and device for carrying out this method |
| 09/21/1994 | EP0615893A1 One-piece knuckle assembly |
| 09/21/1994 | EP0615800A1 Screw with ogive point and process for its production |
| 09/15/1994 | WO1994020239A1 Method of manufacturing drive plate |
| 09/15/1994 | DE4307560A1 Method for the powder-metallurgical production of a machine part subject in certain areas to different types of loading |
| 09/13/1994 | US5346020 Forged clearing wheel for agricultural residue |
| 09/13/1994 | US5345676 Method for producing a full face fabricated vehicle wheel |
| 08/31/1994 | EP0612572A1 Method of making a mandrel comprising a drill section |
| 08/31/1994 | EP0222855B2 Method for fabricating a hose adapter for threaded or nested nipples subjected to hydraulic loads |
| 08/20/1994 | CA2089904A1 Method of making a mandrel comprising a drill section for a self-drilling bling rivet |
| 08/16/1994 | US5337476 Method of making a camshaft |
| 08/03/1994 | CN2173123Y Punch head operation rod device for screw moulding machine |
| 08/02/1994 | US5333775 Hydroforming of compound tubes |
| 07/28/1994 | DE4401674A1 Hot-forging perforation system |
| 07/21/1994 | WO1994015737A1 Method of manufacturing connecting rods |
| 07/14/1994 | DE4300158A1 Mfr. of hollow axle body with nearly square final cross=section |
| 07/13/1994 | CN1089194A Non-constant section, open connecting ring forming technology |
| 07/12/1994 | US5328273 Spherically sliding bearing unit having a multi-layer liner and its manufacturing method |
| 07/05/1994 | US5325698 Stepped extrusion die assembly |
| 06/28/1994 | CA1330401C Method and apparatus for making a forged metal article |
| 06/22/1994 | EP0602951A1 Method of shaping a wheel |
| 06/22/1994 | EP0431019B1 Dual-alloy disk system |
| 06/15/1994 | CN1025011C Production of washer |
| 06/14/1994 | US5320580 faces of an aircraft |
| 06/14/1994 | CA1330161C Process for manufacturing an improved lift truck fork |
| 06/09/1994 | WO1994012799A1 Blind fastener |
| 06/01/1994 | DE4240131A1 Connection between articulated inner part and drive shaft - has internally geared bore changing at end into narrower through hole to reduce production work-steps. |
| 06/01/1994 | CN1024763C Method for manufacture of integrated bicycle hub |
| 05/31/1994 | US5316520 Formation of threads with varying pitch |
| 05/25/1994 | CN1024639C Method for forging wing nut from rod bundle |
| 05/19/1994 | DE4323167C1 Producing steel hollow bodies by rolling - combined with austenitic heat treatment |
| 05/17/1994 | US5312198 Jack extension tube |
| 05/11/1994 | EP0595998A1 Method of forming universal joint housings |
| 05/10/1994 | US5310432 Toothed wheel for use in automobiles and its manufacturing method |
| 05/05/1994 | DE4337690A1 Method of manufacturing integrally forged car wheel - starts with workpiece annular blank of dimensions contg. integral edge which is pressed, forged and shaped forming rim, hub and contour respectively |
| 05/04/1994 | EP0594810A1 Bobbin body and process for producing the same. |
| 05/03/1994 | US5308286 Device for manufacturing austenitic stainless steel drill screws |
| 05/03/1994 | US5308285 Method of making a bolt and washer assembly |
| 04/20/1994 | EP0592908A1 A method of forming a tappet body in an internal combustion engine |
| 04/19/1994 | US5304012 Drive shaft fitting or coupling |
| 04/19/1994 | US5303468 Method of manufacturing a crankshaft |
| 04/14/1994 | WO1994007626A1 Finished forged sprocket segment method and apparatus |
| 04/13/1994 | CN1085142A Method for mfg. blank of outer gear for automative driving axle's ball joint |
| 04/12/1994 | US5302067 Prevailing torque fastener |
| 04/07/1994 | DE4311108C1 Connecting rod welded from steel - has break-off point in crank eye, to facilitate cracking |
| 04/05/1994 | US5299441 Method of making a mandrel comprising a drill section for a self-drilling blind rivet |
| 03/31/1994 | DE4232432A1 Powder metallurgy connecting rod - has at least powder metallurgy big-end bearing forming part of compound connecting rod structure |
| 03/30/1994 | EP0589598A1 Method of making a tubular body having a deformable internal skirt |
| 03/30/1994 | CN1084438A Method for making constant-velocity joint outer wheel rough blank |
| 03/29/1994 | US5297719 Method of producing the inner part of a tripod joint |
| 03/23/1994 | EP0587563A1 Fastener system |
| 03/23/1994 | CA2105706A1 Method of making a tubular body having a deformable internal skirt |
| 03/22/1994 | US5295382 Cold extrusion of externally toothed helical members |
| 03/22/1994 | US5295381 Twist-forming press for crank shaft or the like |
| 03/15/1994 | US5293687 Wheel manufacturing method |
| 03/02/1994 | EP0584907A2 Device for forging a helical gear |
| 02/23/1994 | EP0583381A1 Precision forming apparatus, method and article |
| 02/22/1994 | CA1327133C Tool bits and method of shaping |
| 02/17/1994 | DE4321779A1 Mfg. starter crown gearwheel for motor vehicle engine - Cold deforming sheet metal blank to exhibit outer gear tooth of real running wheel geometry |
| 02/16/1994 | EP0452329B1 A method of producing hydraulic damping gaps |
| 02/16/1994 | CN2155969Y Closed type hydraulic collars machine |
| 02/15/1994 | US5286151 Blind fastener |
| 02/10/1994 | DE4226084A1 Werkzeug zur spanlosen Herstellung von Außen- oder Innenkonturen Tool for cutting production of outer or inner contours |
| 02/03/1994 | DE4225368A1 Method for forming external toothing on hollow shafts - axial pressure forces are applied to material under section to be formed and produce multi-axial stress condition in workpiece |
| 02/03/1994 | DE4225366A1 Method of manufacturing externally toothed hollow bodies - uses forming die and rollers to reduce original blank diameter to preliminary working diameter for tooth cutting |
| 02/03/1994 | DE4225365A1 Percusion drum with body forming cylinder - has several bristle-shaped spring or damping members in drum skin edge region. |
| 02/03/1994 | DE4225364A1 Method for forming toothed hollow shafts - boring pressure is simultaneously applied to blank from both ends, with forming dies acting as counter dies |
| 02/02/1994 | EP0581483A1 Device for and method of forging a helical gear |
| 02/01/1994 | US5282698 Threaded fastener, method of fabrication thereof and method of supporting a mine roof using such a fastener |
| 02/01/1994 | CA1326605C Forged gear for a transmission |
| 01/26/1994 | CN2154139Y Multi-combination cold-heading mould for bearing roller |
| 01/25/1994 | US5280675 Camshaft and method of making a camshaft |
| 01/20/1994 | WO1994001658A1 Camshaft and method of making a camshaft |
| 01/20/1994 | CA2134656A1 Camshaft and method of making a camshaft |
| 01/13/1994 | DE4222748A1 Crankshaft mfr. with shape restrictions for bearings - involves compressing flat shaft bar region between shaft bearings in second heat |
| 01/11/1994 | CA2049999C Method and apparatus for the manufacture of j-shaped display hooks with balled ends |
| 01/05/1994 | CN2151827Y Rotary head passage device for screw forming machine |
| 01/04/1994 | US5275046 Entrance contour design to streamline metal flow in a forging die |
| 12/21/1993 | US5271776 Asymmetrical method for hiping filament reinforced annular objects |
| 12/21/1993 | US5271262 Apparatus for forging a large caliber ring |
| 12/19/1993 | CA2098662A1 Device for forging a helical gear |
| 12/15/1993 | CN1079421A Full cold type oxygen lance head forging process |
| 12/09/1993 | WO1993024257A1 Method of making a threaded connection for reinforcing bars |
| 12/09/1993 | DE4319076A1 Manufacturing method for producing tie rods - involves producing untempered rod and the shaping to determined diameter and further shaping into differently shaped regions |
| 12/01/1993 | EP0572105A1 Method for forming tube-shaped rack bar and device therefor |
| 11/30/1993 | US5265335 Forming method of bushing with inner sliding surface |
| 11/25/1993 | WO1993023186A1 Method of manufacturing shaft of bevel gear |
| 11/25/1993 | DE4300642C1 Producing aluminium@ connecting components - involves stamping flat blank to form undersize holes before cold-pressing into final shape |
| 11/23/1993 | US5263238 Method of forming a stem and assembling a snap ring in a groove in the stem |
| 11/18/1993 | DE4216158A1 Manufacturing process of wheel key for vehicle wheel - involves extruding cylindrical hollow profile and then cutting off blank and shaping it to required shape |
| 11/11/1993 | WO1993022082A1 Welding stud and method of forming same |
| 11/11/1993 | DE4214444A1 Mfg. spherical shells for homo-kinetic joints - by deforming sequentially and radially tubular or cup-shaped blank with shaping cross-sectional reduction |
| 11/09/1993 | US5259819 Method of manufacturing a washer |