| Patents for B23G 1 - Thread cutting; Automatic machines specially designed therefor (3,392) |
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| 02/09/1988 | CA1232416A1 Drill point milling machine and method |
| 02/03/1988 | EP0254768A2 Screw-tapping machine |
| 01/28/1988 | WO1988000507A1 Spindle driver for machine tools |
| 01/20/1988 | CN87201143U T-shaped handle for reamer |
| 12/31/1987 | CN87207071U Tap holder with automatic deepth controlling and reversing |
| 12/09/1987 | CN86208923U Pipe threader |
| 12/01/1987 | US4709464 Indexing mechanism for computer controlled milling machines |
| 11/26/1987 | DE3720765A1 Guide sub-assembly for universal hand drilling for universal mechanical working |
| 11/24/1987 | US4708538 Tapping head |
| 11/17/1987 | US4706369 Fast-action multiple tapping machine |
| 11/10/1987 | US4705437 Reversible dual speed tapping attachment |
| 11/04/1987 | CN87203017U Tapping device for bench drill |
| 11/04/1987 | CN87200220U Sleeve type pipe thread die stock for plastic tube |
| 10/27/1987 | US4702131 Hand driven precision tapping system |
| 10/08/1987 | WO1987005839A1 System for controlling the tapping operation |
| 10/08/1987 | DE3618406A1 Thread-cutting die holder with guide |
| 09/22/1987 | US4694944 Overload clutch particularly for thread-cutting chucks or the like |
| 09/16/1987 | EP0237035A2 Method of and tool for thread mill drilling |
| 09/08/1987 | US4692071 Thread cutting machine |
| 08/18/1987 | US4687384 Hand tapping device |
| 08/05/1987 | CN86205507U Once cutting device for both wave-screw and transition curved run-out of thread |
| 06/10/1987 | EP0225262A1 Method of creating helical threads with zero or negative side inclination |
| 05/19/1987 | US4665783 Process and device for copying and threading in automatic square cycle |
| 05/06/1987 | EP0220973A1 Thread-cutting apparatus for a press |
| 04/07/1987 | US4656405 Tapping machining method |
| 03/05/1987 | DE3531752A1 Drill chuck for taps and a driver insert for a drill chuck of this kind |
| 02/10/1987 | US4642002 Holder for motor driven tools |
| 02/05/1987 | DE3529211C1 Thread-cutting bit holder |
| 01/27/1987 | US4638548 Method of forming a helical ball screw member |
| 01/14/1987 | CN85105405A Process and apparatus for machining steel tube joints (especially used in petroleumindustry) |
| 01/13/1987 | CA1216404A1 Method of forming an internal thread in a hollow body |
| 11/12/1986 | EP0201448A2 Thread cutting die head for power driven threading machines |
| 11/05/1986 | CN85205124U Grinding equipment to machine toothed top arc of ending of gear cutter hob |
| 10/07/1986 | US4615651 Thread guide bushing and bushing holder |
| 09/23/1986 | US4613260 Thread cutting die head for power driven threading machines |
| 08/27/1986 | EP0192586A1 Automatic screw thread cutting device |
| 08/27/1986 | EP0191975A1 Tapping attachment and indexing mechanism therefor |
| 08/19/1986 | US4606683 Method and device for producing thread |
| 08/05/1986 | US4603463 In situ repair of a failed compression fitting |
| 07/30/1986 | EP0189360A1 Base construction for threading machines |
| 07/16/1986 | CN85201609U Magnetic guide apparatus for tapping and drilling |
| 07/08/1986 | US4599019 Overload coupling device |
| 07/01/1986 | US4597145 Tapping machine |
| 06/18/1986 | CN85201412U Tap clamper with coolant injectors |
| 06/04/1986 | CN85201931U Automatic, electric cutting thread and cutting off machine for pipe |
| 05/20/1986 | US4589806 Tap and drill guide |
| 04/16/1986 | EP0177682A2 Overload clutch, especially for a screw thread-cutting chuck or the like |
| 04/15/1986 | US4581783 Base construction for threading machines |
| 04/01/1986 | US4579484 Underwater tapping machine |
| 03/26/1986 | EP0175472A1 Automatic tapping attachment and drive system therefore |
| 02/26/1986 | EP0172718A1 Tapping attachment and drive train thereof |
| 02/26/1986 | CN85201293U Autoswitchable tapping chuck |
| 02/19/1986 | EP0171437A1 Tapping method |
| 02/18/1986 | US4571687 Screw cutting control system |
| 01/28/1986 | US4566829 Tapping attachment and indexing mechanism therefor |
| 01/21/1986 | US4565475 Drill point milling machine and method |
| 12/31/1985 | US4561811 Quick change latching of components |
| 12/03/1985 | US4556348 Combined tap and die holder |
| 10/22/1985 | US4548000 Method for producing threaded sections of threading tools |
| 09/24/1985 | CA1193842A1 Method and apparatus for rethreading tubular members and resulting product |
| 08/15/1985 | WO1985003468A1 Tapping method |
| 07/24/1985 | EP0148996A1 Overload clutch device for screw thread cutting tool |
| 07/09/1985 | US4527299 Method for forming an internal thread in a hollow body |
| 04/30/1985 | US4514115 Tap holder |
| 04/23/1985 | US4513380 Method of tool recovery in threadcutting apparatus |
| 03/05/1985 | US4502821 Thread cutting tool |
| 03/05/1985 | CA1183338A1 Tool holder having coolant fluid delivery system |
| 02/26/1985 | US4501519 Threading die couple |
| 02/05/1985 | US4497100 Apparatus for working pipes |
| 12/11/1984 | US4487305 Apparatus, especially portable apparatus, for handling tubular- and/or rod-shaped workpieces or the like |
| 12/04/1984 | US4485511 Die head with different axial tool paths |
| 11/06/1984 | CA1177293A1 Controlled-torque apparatus |
| 10/23/1984 | US4478539 Multiple tool holder with retainer and drive socket |
| 10/10/1984 | EP0121333A2 Manufacture of drill screws |
| 10/09/1984 | US4475319 Process for machining a worm-type workpiece with a worm-type tool |
| 09/26/1984 | EP0119375A1 Anchoring bolt drilling and setting device, especially for mining |
| 03/27/1984 | US4438539 Actuator for generating tool head |
| 03/21/1984 | EP0103198A2 A method for interrupting machine operation in a CNC system |
| 03/21/1984 | EP0103071A1 Die head with different axial tool paths |
| 03/21/1984 | EP0045750B1 Device for cutting and threading pipes |
| 02/29/1984 | EP0101452A1 Method of forming an internal thread in a hollow body |
| 02/14/1984 | CA1162161A1 Conditioning line for steel pipes |
| 01/17/1984 | US4426178 Pipe cutting and threading device |
| 01/10/1984 | US4424616 Conditioning line for steel pipes |
| 12/20/1983 | US4420865 Method for rethreading tubular members |
| 12/13/1983 | US4419912 Vibration threading lathe for precision screw cutting |
| 11/29/1983 | US4417363 Method of supporting pipe during machining |
| 09/20/1983 | US4405267 Threading device |
| 09/06/1983 | US4402120 Apparatus for rethreading tubular members |
| 08/30/1983 | CA1152778A1 Tap holder |
| 08/18/1983 | WO1983002741A1 Method of forming an internal thread in a hollow body |
| 08/16/1983 | CA1151815A1 Thread restorer |
| 08/16/1983 | CA1151814A1 Thread cutting machine for pipes |
| 08/09/1983 | US4397054 Apparatus for handling pipe to effect high speed machining operations |
| 08/02/1983 | US4396317 Tool holder having coolant fluid delivery system |
| 08/02/1983 | US4396316 Die-head of machine tools |
| 07/19/1983 | US4393624 Thread grinder |
| 07/05/1983 | CA1149113A1 Threading attachment |
| 06/28/1983 | US4390310 Tapping attachment |
| 06/07/1983 | US4386440 Pipe cutter for use on a pipe thread cutting machine |