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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01/16/2003 | US20030010514 Single push button reverse valve system for a pneumatic tool |
01/15/2003 | CN1391507A Driver for power tools |
01/09/2003 | US20030006053 Operating system for hydraulic rock drill |
01/09/2003 | US20030006052 Valve for hydraulic rock drill |
01/01/2003 | CN2528584Y 液压锤 Hydraulic Hammer |
12/26/2002 | US20020195779 Steel retainer for rock drill |
12/19/2002 | WO2002101192A1 Rock drill |
12/12/2002 | US20020185285 Method and apparatus for protecting a fluid-operated percussion device against no-load strokes |
12/11/2002 | EP0910317B1 Surgical instrument for mechanical removal of bone cement |
12/04/2002 | EP1261459A2 Pneumatic piston percussive mechanism with a hollow percussion piston |
12/03/2002 | US6488458 Taper implant and a screw-fastening structure using a taper implant with female threads |
11/21/2002 | WO2002092291A1 Hand machine tool |
11/21/2002 | DE10122820A1 Hand tool, especially hammer drill and/or hammer chisel, has tool guide element that is axially movable with respect to machine housing |
11/19/2002 | US6481509 Impact generator |
11/14/2002 | WO2002090057A1 Method for controlling operating cycle of impact device, and impact device |
11/14/2002 | DE10123202A1 Verfahren und Vorrichtung zur Absicherung eines fluidbetriebenen Schlagwerks gegen Leerschläge Method and apparatus for securing a fluid-operated percussion mechanism against blank firing |
11/13/2002 | EP1256419A1 Method and device for protecting an hydraulic impact tool against the effects of idling |
11/06/2002 | CN2519715Y Hydraulic percussive tool with oil backflow storage cavity |
10/24/2002 | DE10111717C1 Luftfederschlagwerk mit bewegungsfrequenzgesteuertem Leerlaufzustand Pneumatic percussive tool with bewegungsfrequenzgesteuertem idle state |
10/22/2002 | US6467555 Percussion mechanism for an electrical hand-held tool with a blank blow cut-off |
10/17/2002 | WO2002081152A1 Linerbolt removal tool |
10/17/2002 | US20020149255 Device for the removal of the surface layer of a wall or ceiling |
10/16/2002 | EP1117508B1 Pneumatic percussion power tool with pneumatic returning spring |
10/09/2002 | EP1246707A1 Impact tool |
10/09/2002 | EP1005403B1 Power tool |
10/02/2002 | DE10103996C1 Luftfederschlagwerk für einen Schlag- und/oder Bohrhammer mit kurz bauendem Antriebskolben Pneumatic percussive tool for impact and / or hammer drill with short-length drive piston |
09/26/2002 | WO2001000368A3 Pneumatic piston percussive mechanism with a hollow percussion piston |
09/26/2002 | US20020134562 Reciprocating tool having a piston retaining system |
09/19/2002 | WO2002072315A1 Pneumatic percussive tool with a movement frequency controlled idling position |
09/18/2002 | EP1240403A1 Device for hydraulic power supply of a rotary apparatus for percussive drilling |
09/06/2002 | WO2002060652A8 Pneumatic percussive tool with a short working drive piston |
09/04/2002 | CN1367067A Electric hand equipment capable of resisting no-load impact |
08/22/2002 | US20020112599 Recoilless impact device |
08/21/2002 | EP1232042A1 Driver for power tools |
08/15/2002 | US20020108766 Percussion mechanism for an electrical hand-held tool with a blank blow cut-off |
08/14/2002 | EP1231610A2 Process and apparatus for decontaminating contaminated mineral surfaces |
08/14/2002 | EP1058600B1 Fluid actuated tool |
08/08/2002 | WO2002060652A1 Pneumatic percussive tool with a short working drive piston |
08/07/2002 | EP1011931B1 A method and drilling apparatus to adjust the shape of a stroke pulse to be transmitted to the drill bit |
07/31/2002 | EP1226903A2 Electric hand tool with idle running switch off |
07/31/2002 | CN2502856Y Improved pneuamtic tool air guide structure |
07/31/2002 | CN1361726A Drilling hammer or impact hammer |
07/25/2002 | DE10103141A1 Electrical hand tool appliance e.g. hammer drill, has pneumatic striking tool and valve openings sealed off to vent pneumatic spring through riveting header |
07/17/2002 | CN1358925A Oil back flow storage cavity for hydraulic impactor |
07/17/2002 | CN1358612A Hand holding impactor with rotary guide pipe |
06/19/2002 | EP1215016A1 Power hammer-drill with rotating piston guide tube |
06/13/2002 | US20020070036 Percussion rotary hand-held power tool with a rotatable guide tube |
06/13/2002 | DE10061810A1 Schlagendes Handwerkzeuggerät mit drehendem Führungsrohr Beating hand tool with rotating guide tube |
06/05/2002 | EP1064123B1 Method and apparatus for controlling drilling of rock drill |
05/16/2002 | WO2002038316A2 Recoilless impact device |
05/08/2002 | EP1202840A1 Drilling hammer or impact hammer |
05/02/2002 | US20020051693 Taper implant and a screw-fastening structure using a taper implant with female threads |
05/02/2002 | US20020050505 Driving piston for a setting tool |
05/02/2002 | EP0760731B1 Pneumatic impact breaker |
04/18/2002 | WO2002030588A1 Device for straightening the body and/or structures of a damaged motor vehicle |
04/18/2002 | US20020043547 Fuel cell adapter system for combustion tools |
04/17/2002 | EP1196266A2 Innovative oil-dynamic percussion machine working at constant hydraulic pressure |
04/16/2002 | US6371222 Hammer device |
04/11/2002 | US20020040798 Breaking apparatus and tool |
04/10/2002 | EP1195229A1 Breaking apparatus and tool |
04/02/2002 | US6364032 Hand held apparatus for fracturing risers from castings |
02/28/2002 | US20020025239 Taper implant and a screw-fastening structure using a taper implant with female threads |
02/27/2002 | CN2478736Y Nut riveter |
02/21/2002 | US20020020566 Working tool for a percussion power tool |
02/20/2002 | CN1336269A Rock drill and its hole forming method in cutting stone |
02/13/2002 | CN2476394Y Pneumatic rust removal machine |
02/07/2002 | DE10035845A1 Setzgerät Setting tool |
02/05/2002 | CA2108138C A power tool having selectable inlet location |
01/31/2002 | WO2002008590A1 A free-piston engine |
01/31/2002 | DE10034742A1 Werkzeug mit zugeordnetem Schlagwerkzeug Tool with an associated impact tool |
01/30/2002 | CN1333112A Cutter with impact tool |
01/24/2002 | WO2002006014A1 Percussion hydraulic apparatus |
01/24/2002 | WO2002006013A1 Hydraulic percussion apparatus |
01/24/2002 | US20020008420 Method for performing ground or rock work and hydraulic percussion device |
01/24/2002 | CA2415359A1 Percussion hydraulic apparatus |
01/24/2002 | CA2415358A1 Hydraulic percussion apparatus |
01/23/2002 | EP1174225A1 Percussion tool |
01/03/2002 | US20020000325 Hand-held hammer drill |
01/02/2002 | CN2468673Y Portable air hammer |
01/01/2002 | US6334495 Fluid operated percussion device |
12/19/2001 | CN1327119A Buffer pressure control equipment for hydraulic rock drill |
12/06/2001 | WO2001092730A1 Hydraulic percussion/pressing device |
12/06/2001 | US20010047873 Damper pressure control apparatus for hydraulic rock drill |
12/05/2001 | EP1160416A2 Damper pressure control apparatus for hydraulic rock drill |
12/05/2001 | EP1160057A1 Hammer drilling machine |
11/29/2001 | DE10024505A1 Verfahren zur Durchführung von Erd- oder Gesteinsarbeiten und hydraulisches Schlagwerk Method for performing ground or rock work and hydraulic percussion |
11/28/2001 | EP1157787A1 Method for soil and stoneworking and hydraulic impact tool |
11/27/2001 | US6321854 Power tool |
11/22/2001 | US20010043007 Breaker using pneumatic and hydraulic pressures |
11/20/2001 | US6318478 Damper pressure control apparatus for hydraulic rock drill |
11/15/2001 | DE10003415A1 Hydraulic hammer with compressed gas store to operate piston has upper end of piston in fluid-filled first chamber separated from second chamber by membrane |
11/08/2001 | WO2001083170A1 Method and arrangement for adjusting the percussion energy in a percussion drilling apparatus |
11/07/2001 | EP0836545B1 Pneumatic impact tool |
10/24/2001 | CN1073494C Control valve apparatus |
10/17/2001 | CN2454091Y Improved long-stroke pneumatic impact mechanism |
10/11/2001 | US20010027870 Reciprocating tool having a retaining system |
10/09/2001 | US6298923 Impacting device for releasing blocked objects by impact |
09/26/2001 | EP1136190A2 Protection element for preventing the passage of contaminants for a percussive tool with fluid-pressure drive |
09/26/2001 | EP1136189A2 Percussive tool with fluid-pressure drive |
09/25/2001 | US6293309 Control valve apparatus |