Patents for B21K 1 - Making machine elements (7,621)
10/1997
10/29/1997CN1163168A Processing technology for blade pump casing and parts
10/28/1997US5680690 Coated rivet and deformation thereof
10/16/1997WO1997037788A1 Method of manufacturing a component
10/15/1997EP0801212A1 Engine variable valve timing mechanism
10/15/1997EP0800878A1 Method for sizing a lock nut
10/15/1997EP0800425A1 Method of manufacturing internally geared parts
10/15/1997CN1161888A Reducing-extrusion processing method and apparatus thereof
10/01/1997EP0798059A1 Method of production of a blank for a forged connecting rod
09/1997
09/29/1997CA2201252A1 Procedure for the manufacture of a forged blank connecting rod
09/16/1997US5667443 Bolt including a cleaning thread point tip
09/16/1997US5666849 Method of correcting the dimension of workpieces
09/10/1997CN1158766A One-time bicycle hub forming manufacture method
09/03/1997EP0792197A1 Continuous extrusion of complex articles
08/1997
08/28/1997WO1997031214A1 Mechanical joint
08/28/1997DE19707753A1 Metal workpiece smoothed by pressure ram
08/28/1997DE19607310A1 Inner bearing forming method for bicycle wheel's crank
08/28/1997DE19606417A1 Valve push rod for internal combustion engine
08/27/1997CN2260677Y One-time forming mould for triming and reducing stem of screw bolt
08/26/1997US5660594 Method of making a threaded connection for reinforcing bars
08/26/1997US5660593 Outer joint part produced as a formed plate metal part
08/26/1997US5660073 Apparatus and method for forming a ball of relatively small diameter
08/21/1997WO1997029867A1 Manufacture of grease fittings and blanks therefor
08/20/1997EP0678063B1 Method of manufacturing connecting rods
08/20/1997CN2259955Y Machine for rolling and strengthening fixation element on its angle arc
08/19/1997US5657663 Multi-stage forging apparatus
08/13/1997EP0788895A2 Wheel of light metal
08/13/1997CN1156645A Method for making assembled nut and nut produced by same
08/12/1997US5655296 Method of manufacturing connecting rods
08/05/1997US5653258 Vent valve
07/1997
07/29/1997US5651383 Quick-coupling component with pressure reduction member
07/29/1997US5651181 Method of manufacturing a V-pulley
07/24/1997DE4294681C2 Method for forming boss made of metal
07/22/1997US5649360 Method of making a vent valve
07/15/1997US5647125 Process for manufacturing a drive plate
07/03/1997WO1997023316A1 Means to manufacture steering rack bars
07/03/1997DE19625931C1 Device for stamping out pockets in roller cage
07/02/1997EP0781612A1 Electrode in an electric gathering apparatus
07/01/1997US5642851 Method of producing a circular fibre-reinforced metal article, and apparatus for use in said method
07/01/1997CA2113085C Screw head with slant rib and punch for making such screw heads
06/1997
06/26/1997DE19645410A1 Method for manufacturing transverse rod for use with motor vehicle steering linkage
06/25/1997CN1152482A Electrode in electric gathering apparatus
06/19/1997DE19606754C1 Method for manufacturing tube blank for pinion shaft
06/12/1997DE19650453A1 Method of manufacture of assembled nut
06/05/1997DE19545129A1 Manufacturing device for rod form objects, e.g. screws
06/04/1997CN1150922A Method of and apparatus for manufacturing pressed powder body
05/1997
05/29/1997WO1997018958A1 Method of producing light alloy wheels
05/29/1997CA2235513A1 Method of producing light alloy wheels
05/28/1997EP0775756A1 Steel for the production of forgings with bainitic structure, and production process of forged parts
05/28/1997EP0775027A1 Method of manufacturing a hollow spindle
05/28/1997CA2190341A1 Steel for producing a forged piece with a bainitic structure; the method involved
05/27/1997US5632682 Outer joint part for a constant velocity universal joint having inserts which form its guiding grooves
05/27/1997US5632179 Method of manufacturing an engaging element for one way clutch improving squareness of cam face relative to side surfaces
05/27/1997US5632173 Apparatus and method for cold forming a ring on a lead alloy battery terminal
05/22/1997DE19647859A1 Method for forming multi=slot profile for quill shaft
05/21/1997EP0774316A1 Method of and apparatus for manufacturing a pressed powder body
05/14/1997EP0772502A1 Process for producing conical gears and a device for carrying out said process
05/13/1997US5628222 Method of manufacturing a rack
05/09/1997WO1997016270A1 Apparatus and method for forging a pinion gear with a near net shape
05/09/1997CA2209140A1 Apparatus and method for forging a pinion gear with a near net shape
05/07/1997DE19644967A1 Method for manufacturing of drive roller for Torus-type stageless gear
05/06/1997US5628046 Process for preparing a powder mixture and its use
05/06/1997US5626522 Method and an apparatus for making a head on an elongate blank
04/1997
04/30/1997DE19541135C1 Continuous chip-free separation of rotationally symmetrical elongated metal workpieces
04/29/1997US5623756 Method of manufacturing a shock absorbing type steering shaft
04/16/1997CN2252067Y Correction instrument for screw make-up machine
04/15/1997US5619796 Method of making an ultra light engine valve
04/10/1997WO1997012700A1 Pressure-assisted formation of shaped articles
04/09/1997CN1147221A Process and device for continuous, chipless separation of individual rings from tubular workpieces
04/08/1997US5618237 Apparatus for making self-piercing nuts
04/08/1997US5618236 Anti-cross thread fastener with cleaning tip
04/08/1997US5617941 Force-receiving plate for friction device
04/03/1997WO1997012155A1 Method of manufacturing a joint housing
04/03/1997DE19639677A1 Manufacture of outer element of universal joint with cross slots
04/02/1997EP0766015A1 Method of manufacturing a housing of a joint
04/02/1997EP0765967A1 Method for making a shearload dowel and dowel produced by this method
04/02/1997EP0765793A2 A variable-pitch racked bar
04/01/1997US5615481 Method and apparatus for the production of circumferentially compressible pipe fittings
04/01/1997US5615480 Methods for making scroll compressor element
03/1997
03/27/1997DE19535498A1 Valve tappet axle with fluid bores
03/26/1997EP0764484A1 High performance press
03/26/1997EP0764298A1 Method for manufacturing flashless metal connecting rod
03/26/1997CN1145969A Anchor bolt guide rail for building engineering
03/25/1997US5614037 Curing phenolic resin
03/18/1997US5611135 Method of making a tube yoke for drive line assembly
03/13/1997DE19534522A1 Vehicle wheel of non=ferrous metal
03/12/1997CN1144725A Screw special for thin plate welding and welding production technique
03/11/1997US5609542 Planetary gear speed reducer and machining method for planetary gear supporting pin for the same
03/04/1997US5607358 Connection between inner joint part and driveshaft
03/04/1997US5606887 Apparatus and method for cold forming an L-shaped lead alloy battery terminal
03/04/1997US5606790 Method of making a two piece pedal rod
02/1997
02/27/1997DE19531256A1 Separating tool for continuous splitting of tube
02/27/1997DE19530629A1 Tool for continuous separation of tube without cutting
02/26/1997EP0759333A1 Process for forming bolt
02/26/1997CN1143721A Planetary gear speed reducer and machine method for planetary gear supporting pin for the same
02/26/1997CN1143576A Polyblock railway wheel
02/20/1997WO1997005977A1 Method and machine for making rod-shaped objects having ends with increased thickness, especially anchor bolts for concrete
02/18/1997US5603882 Piercing method and apparatus
02/18/1997US5603235 Alkali cleaning; pickling; dipping in water glass solution; drying
02/12/1997EP0758039A1 Anchorage rail for use in construction work
02/12/1997EP0757602A1 Process and device for the continuous, chipless separation of individual rings from tubular workpieces
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