Patents
Patents for B23C 3 - Milling particular work; Special milling operations; Machines therefor (8,354)
01/1992
01/07/1992US5078556 3-phase crankshaft machining
12/1991
12/31/1991US5075968 Hardening steel by heat or nitriding; wear resistance
12/25/1991CN2091194U Conical o type seal slot treating device
12/17/1991US5073069 Machine for milling the ends of ingots or slabs
12/12/1991DE4018145A1 Plastics window frame weld cleaner - has tool support with contour miller and milling tools set according to the frame profile
12/11/1991EP0460654A1 Apparatus for the finishing on window frames or the like
12/10/1991US5071291 Machining a cylindrical surface
11/1991
11/27/1991CN1014873B Auxiliary device for machining space cam
11/26/1991US5067229 Cutting device for use in manufacturing electronic components
11/14/1991WO1991017013A1 Portable machine tool
11/13/1991EP0456590A1 Valve head grinding device, particularly for an internal combustion engine
11/12/1991US5063980 Cutter head assembly
11/08/1991CA2041977A1 Valve head rectifying device, particularly for an internal combustion engine
11/03/1991CA2034275A1 Cutting tool
10/1991
10/31/1991WO1991016162A1 Process for abrading material from inside pipes at junctions where branch pipes join main pipes, and an abrading device for carrying out the process
10/30/1991EP0453875A1 Machine for metal cutting
10/23/1991EP0453391A2 Method for machining airfoils
10/10/1991DE4109750A1 Cutter for dressing plastic frame welds - resembles circular saw and operates in two different planes so as to dress special beads formed by welding together two dissimilar sections
10/09/1991EP0451131A2 Method of constructing a parallel axis rotary piston machine
10/08/1991US5055752 Method for machining airfoils
10/08/1991US5054350 Key punch machine
09/1991
09/18/1991EP0446907A2 Feeler for portable bord milling machines
09/18/1991CN1013938B Method and automatic machine for machining coiled stock
09/11/1991EP0445404A2 Device for making drilled holes with undercutting
09/03/1991US5044844 Machining apparatus
09/03/1991US5044843 Cutting tool
09/03/1991US5044841 Valve seat bushing machining apparatus
08/1991
08/28/1991EP0443398A2 Cleaning-up device for window or door frames
08/21/1991EP0442542A2 Machining apparatus
07/1991
07/25/1991WO1991010532A1 Process and device for forming electrodes in a spot welding gun or the like
07/09/1991US5030049 Tool-outfitted turn broaching machine
07/09/1991US5030046 Valve seal ring seating machine
07/02/1991US5028179 Chamfering machine
06/1991
06/11/1991USRE33606 Method of fabricating a power transmission belt and apparatus therefor
06/06/1991DE3939935A1 Producing crank shafts - by machining simultaneously moving surface, side face, and recesses between surface and faces followed by hardening and final grinding
06/05/1991EP0429449A1 Fixing system
06/05/1991CN2078205U Milling head for polygonal blind hole
05/1991
05/29/1991EP0429074A1 Milling head for smoothing workpieces, specially for copper plate printing cylinders
05/28/1991US5018914 Chamfering tool
05/21/1991US5017062 Tool for precision machining
05/07/1991US5013193 Closet flange reboring tool
05/02/1991EP0259409B1 Adjustable tool-holder in machine-tools for slot milling
04/1991
04/30/1991US5011345 Contour machining method and apparatus for printed circuit board
04/24/1991EP0423339A1 Equal pitch groove working machine
04/24/1991CN2075562U Automatic controlling device for producing screw steel roll
04/18/1991WO1991004830A1 Mainrotor machining process and apparatus
04/10/1991EP0421917A1 Deburring milling device
04/02/1991US5004385 Chamfering machine
03/1991
03/27/1991EP0203123B1 Radially-operating roller/milling-cutter tool rotatably supported on a driven rotating eccentric
03/26/1991US5001871 Machine for precision machining, with a rod for the determination of the practical mean axis of a hole of cylindrical general contour
03/21/1991WO1991003346A1 Device for removably securing a tool to a machine spindle
03/20/1991EP0417446A1 3-Phases crankshaft machining
03/07/1991DE3928597A1 Tool for re-boring valve seats - has cutting insert discs with one or more flats, and central hole for fixing screw
02/1991
02/27/1991EP0413725A1 Process and machine for cutting flanks of one-piece endless screws
02/26/1991US4996651 Cutting instrument improvement for X-Y plotter
02/19/1991US4993896 Edge contouring system
02/05/1991US4989653 Edging apparatus
01/1991
01/30/1991EP0410836A1 Device for an edge-trimming machine removing a burr along the edge of a workpiece
01/29/1991US4988245 Chamferring machine
01/10/1991DE3920722A1 Machining plastic window frame welds - one single machine used has several cutting tools whose mountings are designed to provide quick operations and at minimum costs
01/09/1991CN1011130B Machining method and apparatus for longitudinal grooves in the surface of a cylinder
01/03/1991DE3920462A1 Machining of holes and openings in metal or plastic profile windows - in which machinery operates automatically and can work independently or in conjunction with welding and weld dressing machine
01/02/1991CN1048181A Supplementary device for processing space cam
12/1990
12/27/1990WO1990015684A1 Sensor-controlled deburring and section sensor for implementing it
12/18/1990US4978259 Apparatus and method for deburring metal strip
12/16/1990WO1990015723A1 Method and machine for the engraving of articles
12/16/1990CA2058773A1 Method and machine for the engraving of articles
12/11/1990US4976573 Apparatus for chamfering planar plate
12/11/1990US4976572 Method and automatic machine for machining coiled stock
12/11/1990CA1277529C Sheet material machining system
11/1990
11/28/1990EP0399925A1 Working device for the bearings of a crankshaft of a thermal engine
11/28/1990EP0399924A1 Tools for precision working, of valve seats, for example
11/28/1990EP0399089A2 Vertical portable lathe
11/22/1990EP0398457A1 Method of and device for machining of inner surfaces of hollow bodies
11/20/1990US4971489 Code key cutting machine fast cam feed
11/14/1990CN2065519U Stereo engraving mill with force balance system
11/13/1990US4969782 Key blank adaptor
11/07/1990EP0395996A2 Profile cutting device for corners of plate-like workpieces
11/07/1990CN1010290B Machining process of high-precision ultrashort-pitch cycloidal screw
11/06/1990US4968195 Method and tool for machining a three dimensional surface
10/1990
10/25/1990DE3913294A1 Accurate milling of cam profile - involves third axis feed movement to compensate for parallelism error
10/24/1990EP0393894A1 Key manufacturing machine
10/23/1990US4964765 Chamfering machine
10/17/1990EP0391895A1 Process for manufacturing fine-structured bodies.
10/10/1990EP0390903A1 Optical profile reader, particularly for key duplicating machine.
10/02/1990US4960352 Chamfering machine
09/1990
09/19/1990EP0388263A1 Device for working up curved edges of a workpiece, particularly for chamfering a curve
09/13/1990DE4006318A1 Compact machine for dressing frame welds - locks frame nearly vertically with welded corner downwards and slides suitably profiled set of revolving cutters against weld bead
09/12/1990CN2061879U Milling device for cross rod
08/1990
08/28/1990US4952159 Chamfering machine
08/07/1990US4946323 Chamfering device
08/01/1990EP0379723A2 Groove machining lathe equipped with tools
07/1990
07/31/1990US4944080 Method and apparatus for the longitudinal deburring of sections
06/1990
06/28/1990WO1990004916A3 Method and apparatus for aligning and cutting single-sided and double-sided keys
06/27/1990CN2058627U Bowl-covered paint and rust removing bit tool
06/20/1990CN2058356U Milling and paring spirality steel fibre installation
06/19/1990US4934351 Fabricating internal combustion engine cylinder heads with close tolerance internal surfaces
06/13/1990EP0373098A2 Side face machining apparatus
06/13/1990EP0372717A2 Internal disk milling cutter with improved cutter insert
06/13/1990EP0302915A4 Combined hole making and threading tool.
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