| Patents for B25D 9 - Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously (2,753) |
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| 06/07/2005 | US6901842 Percussion hydraulic apparatus |
| 05/26/2005 | US20050109521 Device for generating a reciprocating movement, valve arrangement therefore and pheumatic tool |
| 05/19/2005 | DE10347944A1 Zusatzhandgriff Additional handle |
| 05/18/2005 | CN2700061Y Hammering device for pneumatic tool |
| 05/10/2005 | US6889591 Recoilless impact device |
| 05/04/2005 | EP1526950A1 Tool holding fixture for a machine tool |
| 04/26/2005 | US6883620 Device for hydraulic power supply of a rotary apparatus for percussive drilling |
| 04/26/2005 | CA2234448C Method for adjusting drilling of drilling machine and rock drill |
| 04/21/2005 | WO2003060282A3 Method and apparatus for replacement of underground pipe |
| 04/21/2005 | US20050082073 Hand-held power tool |
| 04/21/2005 | US20050082072 Auxiliary handle, and hand power tool provided therewith |
| 04/21/2005 | US20050082071 Electrical grounding rod driver |
| 04/20/2005 | CN1607076A Auxiliary handle with vibration damping |
| 04/14/2005 | DE4243617B4 Tragbares, brennkraftbetriebenes Arbeitsgerät, insbesondere Setzgerät A portable combustion-powered tool, in particular setting tool |
| 04/13/2005 | CN1605438A Hand machine tool with an impact mechanism |
| 04/12/2005 | US6877569 Method for controlling operating cycle of impact device, and impact device |
| 04/07/2005 | US20050072584 Hand power tool with a percussion mechanism, and as a method of operating the hand power tool |
| 03/09/2005 | EP1246707A4 Impact tool |
| 03/09/2005 | CN1590034A Percussion cutting machine |
| 02/23/2005 | EP1507634A1 Hudraulic hammer with control means regulating the volume in an accumulator |
| 02/17/2005 | DE10348514B3 Hand-held machine tool for hammer drilling has connecting rod with first part connected to cam and second part connected to piston |
| 02/16/2005 | CN1582216A Engine braker |
| 02/16/2005 | CN1582215A Percussion device with a control valve for two alternately striking pistons |
| 02/15/2005 | US6854538 Rock drill |
| 02/09/2005 | EP1503883A1 Percussion device with a control valve for two alternately striking pistons |
| 02/02/2005 | CN1572992A Method of overlocking at least one strand in an anchoring block and system for overlocking at least one strand in an anchoring block |
| 02/02/2005 | CN1572370A Hydraulic pressure crusher |
| 02/01/2005 | US6848749 Device for the removal of the surface layer of a wall or ceiling |
| 01/27/2005 | US20050016774 Hydraulic rotary-percussive hammer drill |
| 01/27/2005 | US20050016744 Engine braker |
| 01/26/2005 | CN1571713A Method and apparatus for monitoring operation of percussion device |
| 01/13/2005 | WO2005002802A1 Impact device and method for generating stress pulse therein |
| 01/13/2005 | WO2005002801A1 Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device |
| 01/13/2005 | US20050005570 Method of overlocking at least one strand in an anchoring block and system for overlocking at least one strand in an anchoring block |
| 01/06/2005 | WO2005000532A1 Hydraulic hammering device |
| 01/05/2005 | EP1492648A1 Hydraulic rotary-percussive hammer drill |
| 01/05/2005 | CN2668340Y Percussive mechanism for pneuamtic impact wrench |
| 01/04/2005 | CA2097479C Hammer device |
| 12/30/2004 | DE102004024154A1 Hammer Hammer |
| 12/29/2004 | EP1196266B1 Innovative oil-dynamic percussion machine working at constant hydraulic pressure |
| 12/16/2004 | WO2004108361A1 Hydraulic hammering device |
| 12/16/2004 | US20040251038 Percussion device with a control valve for two alternately striking pistons |
| 12/14/2004 | US6829975 Hydraulic percussion apparatus |
| 12/09/2004 | WO2002038316A3 Recoilless impact device |
| 12/09/2004 | US20040244493 Method and apparatus for monitoring operation of percussion device |
| 12/09/2004 | US20040244175 Modular control apparatus for a power impact tool |
| 12/07/2004 | US6827156 Vibration suppressing device for air hammer |
| 12/02/2004 | WO2004073933A8 Impact device with a rotable control valve |
| 12/01/2004 | EP1482102A1 Process for blocking of at least one strand in an anchor block and blocking system for at least one strand in an anchor block |
| 11/30/2004 | US6823949 Modular control apparatus for a power impact tool |
| 11/25/2004 | US20040231869 Hammer |
| 11/23/2004 | CA2125454C Cartridge for explosively operated industrial tools |
| 11/18/2004 | US20040226752 Impact device |
| 11/10/2004 | EP0998376B1 Impacting device for releasing blocked objects by impact |
| 11/10/2004 | CN2654289Y Light pneumatic crushing pick |
| 11/03/2004 | CN2652605Y Impact cutter |
| 11/02/2004 | US6810969 Hand machine tool |
| 11/02/2004 | CA2191423C Hydraulic actuator |
| 10/27/2004 | CN2650950Y Pneuamtic shovel |
| 10/26/2004 | US6808026 Pneumatic percussive tool with a short working drive piston |
| 10/21/2004 | US20040206523 Control device for a power impact tool |
| 10/20/2004 | EP1368160B1 Pneumatic percussive tool with a movement frequency controlled idling position |
| 10/05/2004 | US6799644 Pneumatic percussive mechanism |
| 09/29/2004 | EP1461187A1 Method and apparatus for monitoring operation of percussion device |
| 09/29/2004 | EP1261459B1 Pneumatic piston percussive mechanism with a hollow percussion piston |
| 09/28/2004 | US6796478 Fuel cell adapter system for combustion tools |
| 09/26/2004 | CA2458715A1 Attachment for impact hammer |
| 09/08/2004 | EP1454718A1 Engine braker |
| 09/02/2004 | WO2004073933A1 Impact device with a rotable control valve |
| 09/02/2004 | WO2004073932A1 Control valve and a method for a percussion device with a working cycle involving several coupling moments |
| 09/02/2004 | WO2004073931A1 Control valve and a method of a percussion device comprising two parallel inlet channels |
| 09/02/2004 | WO2004073930A1 Control valve in a percussion device and a method comprising a closed pressure space at the end position of the piston |
| 09/01/2004 | CN1164857C Nitrogen explosion type hydraulic impactor possessing improved oil back flow storage cavity |
| 08/31/2004 | US6782795 Hydraulic percussion/pressing device |
| 08/18/2004 | CN2633465Y Gun powder explosive steel bar cutter |
| 08/18/2004 | CN1522334A 冲击设备 The impact of equipment |
| 08/18/2004 | CN1162256C Rotary hammer |
| 08/04/2004 | CN2629922Y Rotary intake joint |
| 07/29/2004 | US20040144551 Method for controlling operating cycle of impact device, and impact device |
| 07/29/2004 | DE19929183B4 Luftfederschlagwerk mit Hohl-Schlagkolben mit Leerlauföffnung Pneumatic percussive tool with hollow-percussion piston with idle opening |
| 07/28/2004 | CN1159512C Rock drill and its quarrying hole-forming method using the same |
| 07/22/2004 | US20040140113 Linerbolt removal tool |
| 06/23/2004 | EP1008771B1 Taper piece, thread fastening construction using taper piece with female thread, formed drill for processing insertion hole for taper piece, and hammer for driving of taper piece |
| 06/22/2004 | US6751851 Fastening structure using a taper implant |
| 06/17/2004 | US20040112649 Rock drill |
| 06/17/2004 | US20040112614 Hammer |
| 06/16/2004 | CN1153655C Rotary hammer |
| 06/16/2004 | CN1153654C Driver for power tools |
| 06/02/2004 | EP1355764B1 Pneumatic percussive tool with a short working drive piston |
| 05/26/2004 | CN2617983Y Hydraulic impactor with plug bevel valve control |
| 05/26/2004 | CN2617535Y Air shovel |
| 05/19/2004 | CN1496790A Air cushion impactor |
| 05/12/2004 | EP1417076A1 Hand machine tool |
| 05/06/2004 | DE10249139A1 Luftpolsterschlagwerk Air cushion percussion |
| 04/28/2004 | EP1413401A1 Piston and trunnion assembly in a power hammer and method of their assembly |
| 04/28/2004 | EP1412606A1 Impact device |
| 04/22/2004 | US20040074653 Hammer drill |
| 04/22/2004 | DE10237407A1 Hydraulically operated hammer, comprising additional control edge for opening fluid duct in case of excess motion of piston |
| 04/15/2004 | US20040069134 Recoilless impact device |
| 04/08/2004 | US20040065455 Pneumatic percussive tool with a movement frequency controlled idling position |