Patents for B23G 1 - Thread cutting; Automatic machines specially designed therefor (3,392)
10/2004
10/20/2004CN2649244Y Omnibearing positioning tapping machine
10/20/2004CN2649243Y Rotary operating platform fixture device for automatic tapping machine
10/14/2004WO2004087359A1 Thread cutting control method and thread cutting controller
10/13/2004CN2647484Y Machine for grinding threads
10/12/2004US6802678 Tapping unit
10/05/2004US6799615 Tenon maker
09/2004
09/29/2004CN2644069Y Fine adjustment tool apron with screw-thread backlash compensation function
09/29/2004CN2644068Y Online pipe threading unit
09/16/2004US20040179906 Tap process for hard workpieces
09/15/2004EP1457285A1 Eletronically controlled electromechanical tapping apparatus
09/09/2004DE202004008458U1 Minimal compensating thread cutting insert for machine used for synchronized thread cutting
09/08/2004CN2638898Y Variable pitch reducing screw processing device
09/01/2004CN2637068Y Tapping clamping device of threading machine
09/01/2004CN1164379C Method for producing high speed steel roll ring
08/2004
08/19/2004WO2004069459A1 Threading control method and controller
08/12/2004WO2004067216A1 Thread milling cutter, holder and a method for milling an external thread on a spigot
08/05/2004US20040152404 Lapping tool
07/2004
07/14/2004CN1511665A Method and its device for forming internal screw thread on nut
07/07/2004CN2623395Y 轻便型套丝机 Portable threading machine
07/07/2004CN2623394Y Rib ripping and thread rolling transmission device of threading machine
07/07/2004CN2623393Y Frame skeleton structure of threading machine
07/01/2004WO2004054747A2 Screw vibration assisted tapping device
07/01/2004US20040128018 Thread machining control method and apparatus therefor
06/2004
06/30/2004CN2622452Y Pnenmatic bench type tapping machine
06/30/2004CN2621864Y Tool holding device of rib stripping gear of threading machine
06/30/2004CN2621863Y 电动套丝机 Electric Threading Machine
06/24/2004WO2004053343A2 Self-threading female fastener elements and method of forming same
06/24/2004US20040121848 Screw vibration assisted tapping device
06/24/2004CA2507596A1 Self-threading female fastener elements and method of forming same
06/17/2004US20040111884 Profiled contour of a screw pump
06/09/2004CN2619747Y Screwplate aid for cutting external screw on two ends of short tube
05/2004
05/21/2004WO2002065925A8 Bone screw, method for producing the threads thereof and drill for drilling holes therefor
04/2004
04/29/2004US20040081519 Milling head for thread whirling
03/2004
03/11/2004WO2004020136A1 Thread grinding machine
03/11/2004DE10240509A1 Verzahnungs- und Gewindeschleifmaschine Gear cutters and thread grinding machine
03/04/2004US20040040133 Gear tooth and thread grinding machine
03/03/2004EP1051277B1 Threading device
02/2004
02/25/2004CN2604267Y Hand threading machine
02/25/2004CN2604266Y Graphite electrode double-thread chaser processing machine tool
02/25/2004CN2604265Y Top adjustable multi-spindles threading machine
02/24/2004US6694847 Cutting tip and method thereof
02/18/2004EP1020674B1 Oil well pipe screw joint, and threading method therefor
02/03/2004US6687566 Method of machining a female screw and dressing a grinding wheel for female screw machining
01/2004
01/29/2004DE10231252A1 Führungsaufsatz Guide attachment
01/22/2004US20040011104 Method for producing a bung for a metal cask
01/22/2004DE19500515B4 Werkzeugkopf für Rohrgewindeschneidmaschinen Tool head for pipe threading machines
01/15/2004US20040009044 Servo motor die tapping unit
01/07/2004CN1133842C Oil well pipe screw joint, and threading method and appts. therefor
12/2003
12/16/2003US6663326 Cutting tip and manufacturing method thereof
12/04/2003DE4428049C2 Werkzeugkopf für Rohrgewindeschneidmaschinen Tool head for pipe threading machines
12/03/2003EP1366861A1 Lapping tool
12/03/2003CN2589138Y Left and right screw-thread vertical tapping machine
12/03/2003CN2589137Y Fast threading machine
11/2003
11/27/2003WO2003097279A1 Linear electric servo motor actuated screw thread tapper
11/26/2003CN2587564Y Dismounting free type thread cutting tool holder
11/26/2003CN1457952A Knife handle type vibrative screw tapping device
11/19/2003CN1456411A Tapping devices
11/13/2003WO2003092937A1 Impact driver for rotary tools
11/12/2003CN1455718A Lapping tool
11/11/2003US6643904 Shank removal tool for a carburetor
10/2003
10/30/2003US20030202850 Impact driver for rotary tools
10/29/2003EP1355758A1 Profiled contour of a screw pump
10/29/2003CN2582804Y Inner die threading machine for punch press
10/29/2003CN1125699C Method for machining top arc of teeth for thread rolling die
10/22/2003CN2581108Y Thread cutting machine for sleeve
10/15/2003CN1448638A All-extricated contact line single helical-lobe compressor intermeshing pair
10/01/2003CN1445055A Coolant system and cooling method for screw threading machine
10/01/2003CN1445054A Coolant system and cooling method for screw threading machine
09/2003
09/18/2003DE20310400U1 Screw thread positioner has a sleeve and a resting flange and the sleeve is rationally interchangeable with another
08/2003
08/28/2003US20030159758 Tenon maker
08/27/2003EP1338365A1 Threading device
08/27/2003CN1438087A Graphite electrode double scew-thread carding machine tool
08/21/2003US20030156913 Apparatus for forming threads in a pipe end
08/21/2003US20030154831 Automatic screw machine having electronically controlled functions
07/2003
07/31/2003US20030143055 Method for producing a nut, screw tap for carrying out said method and nut produced according to said method
07/15/2003CA2365586C Method of repairing cylindrical workpieces and lathe therefor
07/03/2003US20030122518 Electrical motor-driven lathe
07/02/2003CN2558792Y Full-free contact line single-screw compressor meshing pair
06/2003
06/04/2003EP1218803B1 Hobble turning method and preferred applications of said method
06/04/2003CN1110396C 攻丝机 Tapping Machine
05/2003
05/28/2003CN1109595C Method for cooling workpiece in threading
05/27/2003US6569022 Self-synchronizing tap driver for rigid tapping
05/21/2003CN2551387Y Centering circular die threading handle
05/21/2003CN1418748A Vibration threading machine
05/14/2003CN1108221C Backward cutting process of left-handed thread without recess
05/08/2003US20030086768 Cutting tip and method thereof
05/08/2003DE10143299C1 Wirbelring Vortex ring
05/01/2003WO2003035317A1 Tool holder for a circular cylindrical threading die
04/2003
04/22/2003US6551033 Tapping apparatus and method
04/08/2003US6544127 Tool for repairing damaged threads
03/2003
03/26/2003CN2541108Y Stageless speed variable vertical tapper
03/26/2003CN1404953A Fully numerically-controlled flexible automatic processing line for graphite electrode connector
03/19/2003EP1292419A1 Method for producing a nut, screw tap for carrying out said method and nut produced according to said method
03/18/2003US6533508 Machining apparatus and machining method
03/13/2003WO2003020464A1 Tool die
03/13/2003US20030050699 Methods for manufacturing skeletal implants
03/05/2003EP1287932A1 Thread cutting ring
02/2003
02/19/2003CN2536342Y Threading chunk
02/06/2003DE20210744U1 Holder for tap cutting bits has a housing with no weak points using high tensile materials
02/05/2003CN1394712A Method for on-line fault diagnosis of vibration threading and its equipment
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