| 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) |
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| 09/09/1997 | US5664913 Drill bushing |
| 07/22/1997 | US5649793 Self centering drilling tool |
| 07/17/1997 | WO1997024991A1 A driver |
| 07/17/1997 | DE19601709A1 Positioning device for drilling machine |
| 06/25/1997 | EP0779849A1 Process and device for detecting and compensating for jointing and wear errors in fine drilling |
| 06/03/1997 | US5634748 Drill press having a movable head and a tilt table |
| 05/20/1997 | US5630682 Drill bit assembly |
| 05/13/1997 | US5628592 In a drilling machine |
| 03/12/1997 | EP0761351A1 Two-piece concentric collet |
| 03/05/1997 | EP0552362B1 Device for locking a tool on a support |
| 01/14/1997 | CA2153811A1 Door scriber |
| 11/26/1996 | US5577844 Standard rotating bushing |
| 10/02/1996 | DE19511346A1 Drilling tool |
| 08/13/1996 | US5544986 Cooling and dust collecting apparatus for machine tool |
| 07/30/1996 | CA2010648C Drill |
| 06/18/1996 | CA2114659C Standard rotating bushing |
| 04/23/1996 | US5509762 Drill bit centering device |
| 04/16/1996 | US5507801 Compression drill guide |
| 03/14/1996 | WO1996007500A1 Process and device for detecting and compensating for jointing and wear errors in fine drilling |
| 03/14/1996 | DE4431845A1 Verfahren und Vorrichtung zur Erfassung und Kompensation von Füge- und Verschleißfehlern beim Feinbohren Method and apparatus for sensing and compensating for jointing and wear errors in fine drilling |
| 03/14/1996 | CA2199244A1 Process and device for detecting and compensating for jointing and wear errors in fine drilling |
| 11/14/1995 | US5465471 Apparatus for machining bars |
| 10/12/1995 | DE4406059A1 Tightening device for drill bits and milling cutters |
| 07/04/1995 | US5429504 Twist drills for bone surgery, in particular for dental surgery |
| 05/30/1995 | CA2076335C Precision depth spindle |
| 05/03/1995 | CN1102145A A drill press having a movable head and a tilt table |
| 04/23/1995 | CA2109018A1 Twist drills for bone surgery, in particular for dental surgery |
| 04/04/1995 | US5404021 Laser sensor for detecting the extended state of an object in continuous motion |
| 03/07/1995 | US5395187 Method and apparatus for attaching a drill motor to a drill plate with a clamping device having an expandable collet |
| 01/24/1995 | US5383281 Electrician's center point gauge to facilitate placing conduit holes in electrical boxes |
| 01/17/1995 | US5382250 Cranial drill stop |
| 01/17/1995 | US5382120 Drill bit depth minder |
| 12/28/1994 | CN2186127Y Drilling point apparatus for mould |
| 12/13/1994 | US5372464 Device for locking tooling on a support |
| 11/22/1994 | US5366326 Hole saw guide |
| 11/10/1994 | WO1994025219A1 Drill dust collecting device |
| 10/25/1994 | US5358361 Quick change self-feed drill assembly |
| 10/12/1994 | EP0619469A1 Laser sensor for detecting the extended state of an object in continuous motion |
| 10/05/1994 | CN1026075C 钻头 Drill |
| 09/13/1994 | US5347462 Method for machining printed circuit board |
| 08/30/1994 | US5342275 Tool breakage detecting method |
| 08/18/1994 | DE4303318A1 Adjusting and marking aids |
| 07/26/1994 | US5332340 In a printed circuit board drilling machine |
| 06/14/1994 | CA1330171C Mechanical drilling aid |
| 04/06/1994 | EP0591096A1 Screwing handtool with depth gauge |
| 03/08/1994 | US5293048 Laser sensor for detecting the presence of an object in continuous motion |
| 03/02/1994 | EP0584412A1 Precision depth spindle |
| 02/08/1994 | CA1326895C Boring apparatus |
| 02/02/1994 | EP0581411A2 Drilling method and apparatus using variable dwell times |
| 01/25/1994 | US5281056 Indexing nose couple |
| 01/11/1994 | US5277526 Apparatus with floating tool for drilling, boring, flaring and the like at a set depth using jigs |
| 01/11/1994 | US5277523 Precision depth spindle |
| 12/21/1993 | CA1325336C Machining process of shafted pinions by centre grinding |
| 11/30/1993 | US5265987 Center drilling machine for rod stock |
| 11/10/1993 | CN2145664Y Real time on-line detecting device for drill bit wearing condition |
| 11/04/1993 | DE4314322A1 Tool breakage identification unit in machine tool - judges tool to be broken if detection element is not in contact with tip of tool after holding tool spindle during axial movement for tool exchange at intersection with detection element. |
| 11/02/1993 | US5257531 Apparatus for monitoring machining state of drill |
| 10/20/1993 | EP0565748A1 Tool chuck |
| 10/12/1993 | US5252010 Adjustable stop assembly for a press |
| 09/28/1993 | US5248229 Chuck for tool, especially drilling tool |
| 08/11/1993 | EP0554614A1 Laser sensor for detecting the extended state of an object in continuous motion |
| 08/03/1993 | US5233536 Method and apparatus for perforating a printed circuit board |
| 05/18/1993 | US5212391 Laser sensor for detecting the extended state of an object in continuous motion especially the clogged or broken state of a drill bit |
| 04/20/1993 | US5203650 Method and apparatus for drilling holes |
| 03/17/1993 | EP0531950A1 Penetration depth limiting device for a dental workpiece |
| 03/04/1993 | WO1993003877A1 Device for locking a tool on a support |
| 03/04/1993 | DE4225844A1 Spot weld drill for motor vehicle body panels - has clip-on asymmetrical spacer sleeve for drilling through different material thicknesses |
| 02/04/1993 | DE4125501A1 Detachable holding device for drill-feed unit - has special positive locking arrangement with bayonet socket and sleeve coded for pneumatic control actuation |
| 12/29/1992 | US5175532 Optical drill collar position verifier |
| 12/10/1992 | WO1992021470A1 Monitoring device |
| 12/03/1992 | DE4117818A1 Ueberwachungseinrichtung A monitoring |
| 11/25/1992 | EP0515274A1 Improvements to helical drills for bone surgery, in particular for dental surgery |
| 11/12/1992 | DE4118104A1 Mechanical and pneumatic drill control system - opens up air supply to feed mechanism on code agreeing with that of bush |
| 11/12/1992 | DE4114703A1 Bore drilling in component by hollow cylindrical bit |
| 11/10/1992 | US5161923 Clamping of workpieces |
| 11/10/1992 | US5161922 Electronic micro-stop/tool failure monitor |
| 09/15/1992 | US5147164 Drill bit depth minder |
| 09/01/1992 | US5143489 Method of drilling bores |
| 08/18/1992 | CA1306370C Drive tool for a bit |
| 07/21/1992 | US5131143 Method of centering and thus balancing workpieces to be machined only in part |
| 07/08/1992 | EP0493908A1 Monitoring the condition of a rotary tool |
| 07/01/1992 | EP0492729A1 Tool holder |
| 07/01/1992 | EP0492344A2 Monitoring device for a tool in an automatic turning machine |
| 06/25/1992 | DE4041043A1 Tool breakage control for circuit board machining - evaluates tool spindle speed upon displacement of tool w.r.t. workpiece |
| 06/21/1992 | CA2057608A1 Tool holder |
| 06/17/1992 | EP0490355A1 Drill with annular stop |
| 05/27/1992 | DE4037001A1 Chuck for tool esp. for drill - has shaft which can be entered in machine spindle, with sleeve which is aligned for acceptance of quick change |
| 05/05/1992 | US5109634 Method and apparatus for machining centering chamfers |
| 04/22/1992 | EP0481232A2 Testing device |
| 04/21/1992 | US5106242 Adjustable stop assembly for a press |
| 04/15/1992 | EP0480191A2 Equipment for machining bars |
| 04/07/1992 | CA1298494C Method and apparatus for making an undercut drilled hole in a fixed base |
| 03/18/1992 | EP0475891A1 Method and means for making holes |
| 03/17/1992 | US5096342 Apparatus for drilling composite structures |
| 03/17/1992 | US5096340 Drill press |
| 03/05/1992 | DE4027868A1 Guide for hollow boring tool - is formed by disc attached to position where hole is to be bored |
| 02/25/1992 | US5090847 Pressure foot for microwave drill detection system |
| 02/18/1992 | US5088171 Assembly robot with drilling unit |
| 02/13/1992 | DE4024899A1 Inductive proximity switch with annular sensor head - has defined response zone detecting precise position of drill bit |
| 02/11/1992 | US5087158 Drilling jig for holding drilling debris |