| Patents for B23P 13 - Making metal objects by operations essentially involving machining but not covered by a single other subclass (3,347) |
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| 09/10/1992 | DE4107687A1 Method of producing bearing bushes - involves transfer of bush through bending, sizing and grooving stations in integrated work cycle |
| 09/02/1992 | CN1064039A Method and apparatus for production of portable conic container |
| 08/19/1992 | CN1063748A Ductile iron bush and making method thereof |
| 08/19/1992 | CN1017918B Hollow shaft made of material with low elasticity modulus |
| 08/05/1992 | EP0497064A1 Method for making double-walled insulating metal container |
| 07/01/1992 | EP0492457A2 Matrix diamond drag bit with PCD cylindrical cutters |
| 07/01/1992 | EP0492191A1 Brake cylinder and method for making same |
| 06/30/1992 | US5126530 Method for producing hollow gas exchange valves for reciprocating engines |
| 06/25/1992 | DE4040938A1 Machining the connecting surface between cylinder head and block - by using two stages with intermediate heat treatment to prestress surface and thereby avoid distortion during actual working of engine |
| 06/16/1992 | US5122040 Scroll member and method of forming a scroll member |
| 06/16/1992 | US5121539 Apparatus and method for cutting stacked sheet-like workpieces |
| 06/03/1992 | CN1061550A Process for improving the plasticity of cold deformation of low-carbon thread reinforcing steel |
| 05/26/1992 | US5117087 Method of producing an apertured component |
| 05/26/1992 | US5115564 Method for fracturing connecting rods |
| 05/13/1992 | CN1060988A Method for producing ring metal componemts |
| 04/28/1992 | CA1299350C Method of making a carburetor |
| 04/23/1992 | DE4033233A1 Prodn. of microstructural body e.g. shaping tool - by forming intersecting recesses and/or grooves in machinable substrate surface using diamond tools |
| 04/14/1992 | US5103558 Method and apparatus for machining scroll wraps |
| 02/25/1992 | US5090104 Method of making a core lock shaft |
| 02/04/1992 | US5085745 Method for treating carbon steel cylinder |
| 01/07/1992 | US5078556 3-phase crankshaft machining |
| 12/17/1991 | US5072885 Valve needle and method for producing a valve needle |
| 11/05/1991 | US5062734 Shaft coupling device |
| 10/30/1991 | CN1055687A Method for processing pump used copper tube for deep well hand pump |
| 10/15/1991 | US5056382 Matrix diamond drag bit with PCD cylindrical cutters |
| 09/24/1991 | CA1289428C Interference connection between a fluid and a fluid injector |
| 09/18/1991 | EP0446960A1 Method of manufacture of a pallet for receiving a workpiece |
| 09/18/1991 | EP0446959A2 Method of manufacture of a substantially cylindrical shank with a centring arm transient in one piece into the shank |
| 09/12/1991 | DE4007437A1 Finishing connecting or piston rod for IC engine - applying laser or water beam to separate formed pieces from press or mould strand |
| 09/10/1991 | US5046244 Method for manufacturing stators, in particular extended stators, for pumps or motors with eccentric shafts |
| 09/04/1991 | CN2083982U Automatic making machine for electric fused tubular body |
| 08/21/1991 | CN2083099U High-efficient cutting tool for soft magnetic sheet |
| 08/14/1991 | CN1053765A Production method and its installation of high neck flange |
| 08/07/1991 | EP0439660A1 Twin-shaft rotary piston machine |
| 08/06/1991 | US5036579 Method for making a first object which can be fixed with great accuracy with respect to a second object |
| 07/31/1991 | CN1053381A Method for working surface on body and body manufactured by this method |
| 07/24/1991 | EP0438031A1 Method for machining the surface of workpieces and workpiece manufactured with this method |
| 07/18/1991 | CA2034314A1 Surface treatment of sheet-or plate-like blanks |
| 07/04/1991 | DE4040520A1 Transmission shaft made of iron alloy - with outer hardened and inner relatively unhardened layers |
| 07/02/1991 | US5027777 Fuel injection rail manufacturing means and process and fuel injection rail made accordingly |
| 06/12/1991 | EP0431360A1 Method for manufacturing fixing clamps composed of two section elements and clamp realised in application of the method |
| 06/12/1991 | EP0431271A1 Method for manufacture of a shaftcover |
| 06/06/1991 | DE3939935A1 Producing crank shafts - by machining simultaneously moving surface, side face, and recesses between surface and faces followed by hardening and final grinding |
| 06/05/1991 | EP0429900A2 Method for manufacturing hollow valves of piston motors |
| 05/07/1991 | US5012701 Method of making a threaded retainer ring for a roller cutter on a drill bit |
| 03/26/1991 | US5002445 Expansible plug assembly to be anchored in a hole drilled in masonry |
| 03/20/1991 | EP0417917A1 Method of producing an apertured component |
| 03/20/1991 | EP0417446A1 3-Phases crankshaft machining |
| 01/29/1991 | US4988327 Device for transferring load through a rolling element mounted with a plain bearing, methods for producing the device, and a transmission joint provided with the latter |
| 01/02/1991 | EP0406184A2 Dynamically clamped planing tool and a method for its manufacture |
| 12/05/1990 | CN1047463A Method and apparatus for fracturing connecting rods |
| 11/28/1990 | CN1010604B Intake manifold and mfg. method therefor |
| 11/27/1990 | CA1276777C Method of producing an annular steel wedge formed of a plurality of parts and used for anchoring a tension element in prestressed concrete |
| 10/23/1990 | US4964564 Rotating or moving metal components and methods of manufacturing such components |
| 09/25/1990 | US4959064 Dynamic tension bone screw |
| 09/12/1990 | EP0386393A1 Slicing machine |
| 08/28/1990 | US4951391 Method of manufacturing fittings for tube or pipe |
| 08/22/1990 | EP0382919A1 Method of producing a product having at least one surface containing a plurality of holes, such as a golf club head or grip, semi-product for carrying out this method and finished product |
| 08/15/1990 | CA2010079A1 Finished product with at least one face showing a large number of superficial holes and a method for its manufacture |
| 08/14/1990 | US4947502 Method of making a dynamic tension bone screw |
| 08/08/1990 | EP0380771A1 Method and apparatus for manufacturing casings, especially long casings, for excentric screw pumps or motors |
| 07/19/1990 | DE3900828A1 Expansion dowel for anchorage in a bore of a masonry structure |
| 07/18/1990 | EP0377820A1 Expansible dowel for anchorage in a predrilled hole of a walling |
| 07/10/1990 | US4939828 Method of producing stiffening profiles, particularly of reduced weight |
| 06/19/1990 | US4934035 Method for producing friction bearing parts, in successive processing steps from ribbon-like composite laminate strip material |
| 06/13/1990 | CN2058122U Dual-purpose cutting device for sheet and wire |
| 06/12/1990 | US4932116 Machine for producing friction bearing parts, in successive processing steps from ribbon-like composite laminate strip material |
| 06/07/1990 | DE3844423C1 Method and apparatus for working wire-shaped or rod-shaped material |
| 05/15/1990 | US4924637 Method of machining ceramic rotor for pressure wave type supercharger |
| 05/09/1990 | EP0367733A2 Method of making a carburetor |
| 05/02/1990 | EP0365757A2 Method of producing cams from a casting material |
| 04/04/1990 | CN2055431U Machine for accurate cutting and end face grinding of pole materials |
| 03/13/1990 | US4907920 Milling cutter for honeycomb core material |
| 02/28/1990 | EP0356063A2 Method of producing a multi-apertured workpiece |
| 02/13/1990 | US4899712 Fuel injection rail manufacturing means and process |
| 01/30/1990 | US4896409 Method of producing a rotationally-symmetrical housing, in particular a valve housing |
| 01/10/1990 | CN2050921U Multi-function special-purpose equipment for installing and processing conduit |
| 01/03/1990 | EP0349002A1 Tubular structure and method of making a tapered tubular structure |
| 01/03/1990 | EP0348798A1 Method of making a valve sleeve |
| 12/27/1989 | EP0347791A2 Method, especially for producing weight reducing stiffening profiles |
| 12/14/1989 | DE3805487A1 Method for separating printed circuit boards from a blank |
| 11/23/1989 | DE3817259A1 Method and device for machining bores |
| 11/23/1989 | DE3816090A1 Verfahren zur herstellung von metallenen hohlprofilen und einrichtung fuer die durchfuehrung des verfahrens Process for the manufacture of metallic hollow profiles and device for carrying out the method |
| 11/07/1989 | US4878282 Method for the production of friction plates, synchronizing blocker rings or similar structures |
| 10/19/1989 | DE3911441A1 Verfahren zur herstellung eines halbgeteilten lagers A process for producing a semi-split bearing |
| 10/18/1989 | CN1036347A Method for making assembled crank-shafts by enlarging sleeves pivoted in seperated plugs |
| 10/11/1989 | EP0336352A2 Micro construction element |
| 10/11/1989 | CN2045681U Two-way swaying rail-cutting device |
| 09/27/1989 | EP0333953A1 Multiple sleeve-nut anchor plate |
| 09/26/1989 | US4868969 Process for producing workpieces |
| 09/26/1989 | CA1260210A1 Method of forming an external helical ball screw |
| 09/12/1989 | US4864705 Method of making a carburetor |
| 09/05/1989 | US4862571 Method of making a valve sleeve |
| 08/30/1989 | EP0329880A1 Method of machining a cylindrical article |
| 08/29/1989 | US4860419 Split bearing assemblies, method for making |
| 08/23/1989 | EP0328825A2 Method for forming a torus and a piston made therefrom for use in a rotary actuator |
| 07/05/1989 | CN2040422U Device for processing spherical constant speed shaft coupling |
| 07/05/1989 | CN1004724B Rolled-welded pulley and its producing method |
| 05/17/1989 | CN1032915A Technology using pointer to track templet for processing workpieces with curved surface |
| 05/10/1989 | EP0315136A1 Method of manufacturing crank shafts made of several parts by expanding sleeves engaged in divided crank pins |