| Patents for B21J 7 - Hammers; Forging machines with hammers or die jaws acting by impact (996) |
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| 07/19/2011 | US7980107 Variable diameter pipe expander |
| 07/13/2011 | CN201895058U Gantry type dual-purpose hydraulic forging hammer |
| 07/12/2011 | US7975519 Wind turbine installation comprising an apparatus for protection of anchor bolts and method |
| 07/07/2011 | US20110162432 Apparatuses for crimping and loading of intraluminal medical devices |
| 06/22/2011 | CN101356029B Equipment for forging four-hammer |
| 06/21/2011 | US7963140 Variable crimp on flange tool |
| 06/16/2011 | US20110138873 Robotic peening apparatus |
| 06/09/2011 | US20110132023 Outer case of refrigerator and refrigerator having the same and manufacturing method thereof |
| 06/08/2011 | EP2329944A2 Press for producing pressure for processing a workpiece |
| 06/08/2011 | CN201855907U Hydraulic numerical control forging hammer and hydraulic numerical control forging device |
| 06/08/2011 | CN201855906U Electric hydraulic driver for large-tonnage air hammer |
| 06/08/2011 | CN101198425B Method and device for producing internal tooth section and external tooth section on cylinder type hollow member with thin wall |
| 05/25/2011 | CN1905965B Drop forging method and forging device for carrying out said method |
| 05/18/2011 | CN102059308A Air buffer type mechanical power hammer |
| 05/11/2011 | CN201823858U Novel forging hammer with knocking sleeve |
| 05/11/2011 | CN102049460A Hydraulic power impact device |
| 05/11/2011 | CN102049459A Rotary swaging machine |
| 05/11/2011 | CN101745592B Rotary swaging preparation method for high-strength magnesium alloy wire |
| 05/04/2011 | CN101450366B Mid-frequency high-pressure steel tube finish-forging device |
| 05/04/2011 | CN101412067B Radial forging mechanism |
| 04/19/2011 | US7926320 Apparatuses for crimping and loading of intraluminal medical devices |
| 04/13/2011 | CN102015151A Bush widening apparatus and process for forging a bush blank |
| 04/13/2011 | CN101462147B High-speed air-actuated hammer-forging device |
| 03/30/2011 | CN201776379U Steam-air dual-purpose hammer piston |
| 03/23/2011 | EP2298468A2 Ring press with torque motor |
| 03/23/2011 | EP2298467A2 Ring press with hydraulic tensioning ring adjustment |
| 03/09/2011 | CN201755628U 空气锤曲轴 Crankshaft air hammer |
| 02/17/2011 | WO2011017736A1 Forging die apparatus for steering racks |
| 02/15/2011 | US7886661 Radial compression mechanism |
| 02/15/2011 | US7886566 Swager die and actuator mechanism |
| 02/09/2011 | EP2280793A1 Bush widening apparatus and process for forging a bush blank |
| 02/02/2011 | CN201728317U High frequency full-hydraulic electrohydraulic hammer |
| 01/27/2011 | WO2011009629A1 Method and device for stretch-forging twisted parts |
| 01/27/2011 | DE102009025352A1 Device for reshaping heating rod for glow plug of diesel engine, has feed unit and clamping device, whose rotary direction and speed are selected based on rotation speed of reshaping tools so that workpiece compensating movement is produced |
| 01/26/2011 | CN201720373U Forging hammer support with novel connecting plate bore holes |
| 01/19/2011 | CN101947619A Water pressure numerical control forging hammer, water pressure numerical control forging device and a water pressure numerical control forging method |
| 12/29/2010 | CN101927310A Hardening processing device for railway turnout and method thereof |
| 12/23/2010 | WO2010121590A3 Shaping method and correspondingly shaped component |
| 12/16/2010 | DE102010019547A1 Cold forging device for surface of metal workpiece, has hollow piston element with pneumatic hammer adjustably arranged in adapter housing to position pneumatic hammer with impact head during pre-loading on metal surface |
| 12/15/2010 | CN201669362U All-steel pneumatic hammer |
| 12/07/2010 | US7845205 Die cushion controller |
| 11/24/2010 | CN201644688U Oliver |
| 11/17/2010 | CN201632576U Electrohydraulic hammer impact resistant buffer device |
| 10/27/2010 | EP2243624A1 Compensation cylinder for masses in movement with safety device for mechanical presses |
| 10/20/2010 | EP2241386A1 Reforming tool for creating an internal profile, in particular an internal gear of a workpiece |
| 10/20/2010 | CN201609748U 四锤头液压精锻机锤头同步装置 Four hammer hydraulic hammer forging machine synchronizing device |
| 10/20/2010 | CN201609747U 一种电液锤汽缸与保险缸的连接结构 An electrical connection structure hydraulic hammer cylinder and cylinder insurance |
| 10/19/2010 | US7814630 Apparatus and method for swaging needles |
| 10/07/2010 | US20100256612 Minimally Invasive Cerclage System |
| 10/05/2010 | US7805973 Mechanical press drive system |
| 09/23/2010 | WO2010105826A1 Forming tool, in particular a kneading tool |
| 09/23/2010 | DE102009013435A1 Forming tool i.e. kneading tool, for radial pressurizing workpiece for forming machine i.e. round kneading machine, has chamfer defined by inclination angle, where another inclination angle is aligned opposite to former inclination angle |
| 09/22/2010 | CN201586722U Pressure-loss protecting device connected with electro-hydraulic hammer control system |
| 09/22/2010 | CN101837414A Press power head |
| 09/21/2010 | US7797979 Crimping apparatus including a tool for supporting a plurality of crimping members |
| 09/15/2010 | CN201579357U Overpressure prevention device of electro-hydraulic hammer accumulator |
| 09/15/2010 | CN101829753A Novel sealing mechanism of lower sleeve of working cylinder of air hammer |
| 09/15/2010 | CN101829750A Forging and pressing mechanical power head |
| 09/07/2010 | US7788961 System and method for ballizing and measuring a workpiece bore hole |
| 09/01/2010 | CN201565546U Electro-hydraulic hammer lower plug sealing and positioning structure |
| 09/01/2010 | CN201565543U Electro-hydraulic hammer cylinder |
| 09/01/2010 | CN101249603B Roll forming integrated technique of high intensity high-hardness alloy and roll forming equipment |
| 08/25/2010 | CN201558926U Miniature wire cross forging machine |
| 08/12/2010 | DE212008000083U1 Büchsenaufweitvorrichtung Büchsenaufweitvorrichtung |
| 08/04/2010 | CN201537671U Hammer rod structure of electrohydraulic hammer |
| 08/03/2010 | US7765851 Vehicle panel pulling devices |
| 07/27/2010 | US7761993 Method for increasing the fatigue life of a blade root of a turbomachine blade |
| 07/20/2010 | US7757535 Punching machine with spring-supported work support |
| 07/08/2010 | DE102008064228A1 Verfahren zum Betrieb eines Hammers A method of operating a hammer |
| 07/06/2010 | US7748248 Stent crimping mechanisms |
| 07/01/2010 | WO2010072186A1 Method for operating a hammer |
| 06/24/2010 | US20100154195 Method and apparatus for contracting, or crimping stents |
| 06/24/2010 | DE102008064230A1 Deforming machine i.e. counterblow hammer, has position measuring devices rotated to each other around specific angle with respect to longitudinal axis of deforming machine, and upper and lower rams moved along longitudinal axis |
| 06/23/2010 | CN101745594A Deflagration type impact forging hammer |
| 06/23/2010 | CN101745592A Rotary swaging preparation method for high-strength magnesium alloy wire |
| 06/17/2010 | DE102006041223B4 Verfahren zum Betreiben eines hydraulischen Antriebssystems, insbesondere zum Freiformschmieden eines Werkstücks A method of operating a hydraulic drive system, in particular for forging a workpiece |
| 06/09/2010 | CN101722263A Dual-purpose hydraulic forging hammer |
| 06/09/2010 | CN101722262A New method for producing medium and large caliber alloy steel seamless pipe by utilizing radial forging technology |
| 06/02/2010 | CN201493422U Lower ejector device of counter-blow hammer |
| 06/02/2010 | CN101347814B Convenient hydraulic electrohydraulic hammer |
| 03/31/2010 | EP2167257A1 Ring press |
| 03/31/2010 | CN201435176Y Drop-hammer forging press |
| 03/17/2010 | EP2162250A1 Device for machining workpieces |
| 03/17/2010 | CN201423423Y Processing device for hardening railway points |
| 03/11/2010 | WO2010025591A1 A convenient electro-hydraulic hammer |
| 03/11/2010 | US20100059241 Pile-driving device |
| 02/25/2010 | WO2010021553A1 Swaging method and apparatus |
| 02/16/2010 | CA2555830C Low swage load fastening system and method |
| 02/03/2010 | EP2149411A1 Rotary swaging hammer |
| 01/28/2010 | US20100018272 Peening apparatus and method |
| 01/19/2010 | US7647806 Drive |
| 12/24/2009 | DE10341716B4 Vorrichtung zum radialen Umformen von stab-, rohr- oder drahtförmigen Werkstücken Apparatus for forming of radial rod, tube or wire-shaped workpieces |
| 12/10/2009 | WO2009146715A1 Bush widening apparatus and process for forging a bush blank |
| 12/03/2009 | DE10025060B4 Vorrichtung zur Fertigung von Kleinteilen aus Drahtabschnitten Apparatus for production of small parts from wire sections |
| 11/25/2009 | EP2121215A1 Pile-driving device |
| 11/25/2009 | EP2121214A1 Pile-driving method and device |
| 11/05/2009 | US20090272165 Electrohydraulic trimming, flanging, and hemming of blanks |
| 11/03/2009 | CA2581071C Method for fabricating thin californium-containing radioactive source wires |
| 10/28/2009 | CN201333489Y High speed pneumatic forging hammer device |
| 09/29/2009 | US7594331 Method of production of joining profiles for structural members |