| Patents for B23B 49 - Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centring devices for holes to be bored (2,465) |
|---|
| 01/15/1992 | EP0466684A2 Method for balanced centering of workpieces which are to be partially machined, particularly crank shafts |
| 01/07/1992 | US5078553 Compact drill sampler for quantitation of microorganisms in wood |
| 01/07/1992 | US5078552 Guide/drill stop for regulating drill depth |
| 12/31/1991 | US5076102 Tool monitor |
| 12/11/1991 | EP0460447A1 Compression drill guide |
| 12/10/1991 | US5071293 Feed rate regulator for a hand-held drill |
| 11/06/1991 | CN2088013U Rotary drilling device capable of automatically evenly dividing |
| 10/15/1991 | US5056965 Method of controlled inventory for bushings |
| 10/08/1991 | US5054968 Mechanical positive feed drill with supported spindle |
| 09/24/1991 | US5051045 Aircraft rework drill bar |
| 09/24/1991 | US5051043 Spot weld drill guide |
| 09/19/1991 | DE4008304A1 Cable conduit drilling device - has external guidance device with control magnet cooperating with magnet incorporated in drilling head |
| 09/05/1991 | WO1991012917A1 Automatic thread cutting machine for nuts |
| 08/28/1991 | EP0443445A1 Drilling jig for dowel holes in building walls or ceilings |
| 07/30/1991 | US5035554 Method for determining the radius described by a tool |
| 07/23/1991 | US5033917 Chip extraction apparatus |
| 06/25/1991 | US5025842 Fence rail and method and apparatus of manufacturing the same |
| 06/11/1991 | US5022195 Method and apparatus for machining centering chamfers |
| 06/05/1991 | EP0429443A1 Device for monitoring rotating tools |
| 05/08/1991 | DE3936959A1 High speed drilling machine for PCB - has clamp ring removed from drill holder to allow replacement of drill bit |
| 04/17/1991 | EP0422284A1 Drill fracture controlling method for a circuit board drilling machine |
| 04/10/1991 | EP0421155A2 Drilling device |
| 04/02/1991 | US5004930 Method and device for setting the angular position of a workpiece on a machine-tool by means of a laser beam |
| 03/26/1991 | US5001826 Quick change nose piece for an air-feed peck drill |
| 02/28/1991 | DE3928246A1 Machine tool cutting bar into defined lengths - has first tool which cuts groove and second tool which cuts off required length |
| 02/19/1991 | US4993895 Apparatus for retaining a tile in a secure position to prevent rotation while an opening is drilled through the tile |
| 02/19/1991 | US4993894 Drill |
| 01/30/1991 | EP0321463B1 Mounting for accessory units |
| 01/22/1991 | US4986702 Fastener collar remover |
| 01/08/1991 | US4982489 Tool set and method for gauging and restoring concentricity between axial sections of a workpiece bore |
| 12/18/1990 | US4978256 Drill fixture useful for drilling holes in bead like objects |
| 11/07/1990 | EP0396466A2 Pressure foot for microwave drill detection system |
| 11/04/1990 | CA2016026A1 Pressure foot for microwave drill detection system |
| 10/31/1990 | DE3912991A1 Electric hand drill or screwdriver - has stop switch for automatic cut=out motor at required penetration depth |
| 09/12/1990 | EP0386532A1 Drill spindle depth adjustment |
| 09/11/1990 | US4955951 Boring apparatus |
| 09/05/1990 | EP0385059A2 Drill |
| 09/05/1990 | CN1045055A 钻头 Drill |
| 08/30/1990 | DE3906036A1 Drill for making drilled holes with an undercut |
| 08/14/1990 | US4948304 Adjustable tool guide and driver for a bit |
| 08/08/1990 | CN1009064B Cutter abnormal noise detector with an electronic brain |
| 07/17/1990 | US4941781 Mechanical drilling aid |
| 07/11/1990 | EP0376965A1 Apparatus and methods for automatically determining the radius described by a tool tip mounted for a rotary machining operation |
| 06/27/1990 | EP0375526A1 Precision trepanning tool for panels of sandwiched materials |
| 06/27/1990 | EP0374606A1 Method and apparatus for positioning a work piece on a machine tool at an angle by the use of a laser beam |
| 06/06/1990 | EP0371062A1 Boring head for machine tools and related machining method |
| 05/08/1990 | US4922573 Compression fitted bushing installation |
| 04/04/1990 | EP0361290A1 Auxiliary device for a drill |
| 03/08/1990 | WO1990002022A1 Device for monitoring rotating tools |
| 03/08/1990 | DE3829872A1 Drilling device for making undercut drill holes |
| 02/27/1990 | US4904130 Cutting tools with depth indication |
| 02/22/1990 | DE3828101A1 Vorrichtung zur ueberwachung von rotierenden werkzeugen Device for monitoring of rotating tools |
| 02/14/1990 | EP0354393A2 Machine for working terminals |
| 02/13/1990 | US4900201 Drill spindle depth adjustment |
| 02/13/1990 | US4899458 Process and device for centering a guide mandrel |
| 02/06/1990 | US4898502 Mechanical drilling aid |
| 12/27/1989 | EP0347922A1 Drill Guide |
| 12/13/1989 | EP0346231A1 Drill, especially for a programmable machine |
| 12/13/1989 | CN2049159U Special device for drilling flange |
| 11/28/1989 | US4884210 Method and machine for a balancing centering of workpieces which are to be machined only at certain portions, particularly crankshafts |
| 11/23/1989 | EP0343043A1 Shafted pinion center rectification machining method |
| 11/23/1989 | DE3816656A1 Countersinking device with depth stop by means of setting head |
| 11/23/1989 | DE3815772A1 Assembly template |
| 09/27/1989 | EP0334341A2 Tool monitor |
| 09/26/1989 | CA1261221A1 Drill guiding and aligning device and a drill rod and a milling device to be used in connection therewith |
| 09/06/1989 | EP0331081A2 Boring apparatus |
| 08/03/1989 | DE3801573A1 Device for separating spot-welded sheets |
| 07/27/1989 | DE3801141A1 Guiding and drilling-depth stop device for portable drilling machines |
| 07/25/1989 | US4850755 Nose piece adaptors for manual or power feed drills |
| 07/20/1989 | DE3800482A1 Surgical drilling instrument |
| 06/28/1989 | EP0321463A1 Mounting for accessory units. |
| 06/27/1989 | US4841817 Gun drill coolant bushing and method of making same |
| 06/13/1989 | US4838742 Method and apparatus for making an undercut drilled hole in a fixed base |
| 06/06/1989 | US4836720 Drill guide |
| 04/25/1989 | US4823780 Drill guiding and aligning device |
| 03/29/1989 | EP0308403A1 Process for measuring the distance between a machine-tool and a workpiece |
| 03/22/1989 | CN2034487U Electromagentic type detector for open hole |
| 02/15/1989 | CN2032517U Piercing machine used for fitter with automatic captured precision |
| 02/14/1989 | US4804300 Gun drill coolant bushing and method of making same |
| 02/09/1989 | WO1989001193A1 Apparatus and methods for automatically determining the radius described by a tool tip mounted for a rotary machining operation |
| 02/09/1989 | WO1989001192A1 Boring head for machine tools and related machining method |
| 02/07/1989 | US4802798 Drill head |
| 01/25/1989 | EP0300959A1 Process and apparatus for centering a pilot arbor |
| 01/25/1989 | CN2031324U Scarfing plate type straight combination drilling jig |
| 01/17/1989 | US4798503 Tenon forming tool |
| 12/29/1988 | WO1988010166A1 Device for drilling holes |
| 12/13/1988 | US4790694 Method and system for multi-layer printed circuit board pre-drill processing |
| 11/02/1988 | CN88200208U High precision eccentric microadjustable boring device |
| 11/01/1988 | CA1244111A1 Tool abnormality detector |
| 10/25/1988 | CA1243744A1 Cutting tool wear monitor |
| 10/19/1988 | EP0287071A2 Tool change arrangement for co-ordinate boring machines for printed circuit boards |
| 10/04/1988 | US4774746 End-forming machine |
| 09/13/1988 | US4770570 For directing flow of coolant toward the cutting edge of a tool |
| 08/16/1988 | US4764060 Quick-change adjustable clocking nosepiece |
| 07/26/1988 | CA1239685A1 Microwave detection system |
| 07/20/1988 | EP0275032A1 Method and device for producing an undercut bore hole in a mounting base |
| 06/21/1988 | US4752158 Swivel mounted sleeve with adjustable stand off for depth controlled tool |
| 06/07/1988 | US4749316 Quick change drill chuck systems |
| 06/01/1988 | EP0268724A1 Method and machine for equilibratingly centering work pieces to be partially cutting-machined, especially crankshafts |
| 05/26/1988 | DE3639281A1 Drilling implement with gauge for determining diameter |