Patents
Patents for B25D 9 - Portable percussive tools with fluid-pressure drive, e.g. having several percussive tool bits operated simultaneously (2,753)
11/1995
11/23/1995WO1995031629A1 Reverse percussion device
11/23/1995DE4433533C1 Hydraulic ram=type drill
11/21/1995US5467684 Rotary piston driving mechanism
11/04/1995CA2148394A1 Starting and stopping of hydraulic reciprocating machines
10/1995
10/18/1995EP0677356A2 Sensor impulse unit and method
10/13/1995CA2146577A1 Sensor impulse unit and method
09/1995
09/20/1995EP0672506A1 Hydraulic percussion hammer
09/13/1995EP0639121A4 Impact device.
09/13/1995CN2207263Y Single strike pneumatic impactor
08/1995
08/31/1995WO1995023051A1 Pneumatic impact breaker
08/31/1995WO1995023050A1 Pneumatic impact breaker
08/31/1995WO1995023049A1 Valve arrangement in compressed air driven motors
08/29/1995US5445232 Hydraulic breaking hammer
08/24/1995WO1995022442A1 Hydraulic paving breaker
07/1995
07/12/1995CA2139455A1 Fluid metering device for compressed fluid operated tool
07/11/1995CA2068868C Hydraulically powered repetitive impact hammer
06/1995
06/27/1995US5427187 Method for adjusting the impact force on a hammer
06/22/1995WO1995016549A1 Accumulator
06/22/1995WO1995016548A1 Accumulator charging system
06/22/1995CA2178331A1 Accumulator charging system
05/1995
05/31/1995CN1103022A Cartridge for explosively operated industrial tools
05/30/1995US5419403 Pneumatic hammer
05/23/1995US5417294 Pneumatic hammer
05/18/1995WO1995013166A1 Pneumatic percussion device
05/16/1995US5415241 Explosive actuated battering ram
05/16/1995US5415240 Drilling device for a rock drill
05/09/1995US5413186 Reverse percussion device
05/03/1995CN1102152A Plastic powder drum used in firing equipment, especially bolt driver
04/1995
04/27/1995DE4404009C1 Fluid-operated impact hammer
04/25/1995US5408768 Impact hammer cylinder
04/20/1995WO1995010395A1 Explosive actuated battering ram
04/20/1995CA2169363A1 Explosive actuated battering ram
04/19/1995EP0648915A1 Rock drilling device
04/18/1995US5407017 Hammer for removing gates or risers from castings
03/1995
03/21/1995US5398772 Impact hammer
03/16/1995WO1995007167A2 Driving mechanism for a portable percussion tool and variants thereof
03/16/1995WO1995002110A3 Impact hammer
03/15/1995EP0642625A1 Hydraulic jack hammer, for example for marine sampling
03/15/1995CN1027875C Apparatus for driving insueating board into brickwork
03/08/1995CN1099687A Nailing tool operated by powder
03/07/1995US5394702 Explosive powder charge operated setting tool
02/1995
02/28/1995US5392865 Hydraulic percussion apparatus
02/22/1995EP0639121A1 Impact device
02/15/1995EP0638013A1 Hydraulic breaking hammer.
02/09/1995WO1995004207A1 Rotary piston driving mechanism
02/09/1995CA2168758A1 Rotary piston driving mechanism
01/1995
01/19/1995WO1995002110A2 Impact hammer
01/19/1995CA2166390A1 Impact hammer
01/18/1995EP0633829A1 Improvements in pneumatic powertools
01/11/1995CN1097235A 锤装置 Hammer device
12/1994
12/27/1994US5375331 Knife with blade moved in rapid sequence relative to the handle
12/14/1994CN1096238A Hydropneumatic hammer
12/13/1994US5372196 Hammer drill device
11/1994
11/24/1994DE4415281A1 Fluid-actuated impact hammer
10/1994
10/27/1994WO1994023906A1 Rock percussion mechanism
10/26/1994EP0621110A1 Powder-actuated driving tool
10/26/1994CN1094119A A pressure reversing valve for a fluid-actuated, percussive drilling apparatus
10/25/1994US5358060 Successive hole boring machine and lost strike preventing device for successive hole boring machine
10/19/1994EP0620064A1 Workpiece manipulating and processing system
10/13/1994WO1994023181A1 Hydraulic jack hammer, for example for marine sampling
10/05/1994EP0617926A2 Pneumatic percussion tool and piston for such a tool
10/04/1994US5352230 Pneumatic impulse tool
09/1994
09/27/1994US5350390 Device for removal of intraluminal occlusions
09/15/1994WO1994020725A1 Pressure reversing valve for percussive drilling apparatus
09/14/1994EP0614730A1 Impact device
09/13/1994CA2007428C Hydraulic jackhammer
08/1994
08/25/1994DE4301095A1 Gas-filled spring element without damping
08/23/1994US5340233 Pneumatically operated rammer
08/04/1994DE4312171C1 Hydraulic hammer mechanism for drill
08/03/1994EP0608776A1 Plastic cartridge for a shooting device, especially a bolt setting device
07/1994
07/20/1994EP0548098B1 Knife with blade quickly movable in relation to the handle
07/19/1994US5329855 Cartridge for explosively operated industrial tools
07/19/1994US5329685 For striking objects
07/06/1994CA2086718A1 Self powered magazine hammer
06/1994
06/23/1994DE4243618A1 Portable staple gun driven by internal combustion
06/23/1994DE4243617A1 Portable nail or staple gun, driven off a liquid fuel canister
06/23/1994DE4242014A1 Powder-charge adiabatic firing system
06/14/1994US5320189 Rock drilling device
06/09/1994DE4340005A1 Discharge mechanism for liq. filled housing - has piston in air-tight cylinder, dividing it into two pressure engageable and releasable chambers
06/08/1994EP0423121B1 An apparatus with two end positions generating a reciprocating motion
05/1994
05/17/1994US5311948 Soft mount air distributor
04/1994
04/12/1994US5301761 Pressure reversing valve for a fluid-actuated, percussive drilling apparatus
04/05/1994US5299778 Throttle valve system for a percussive fluid-activated apparatus
03/1994
03/16/1994EP0587079A2 Hydraulic impact tool
03/15/1994CA1327740C Method to make independant from piston wear the fluid tight seal of the inlet and outlet ports of fluid in a hydraulic appliance
03/08/1994US5291955 For breaking up a surface
02/1994
02/17/1994WO1994003292A1 Hydraulic hammer
01/1994
01/18/1994US5279120 Hydraulic striking device
01/12/1994EP0578623A2 Hammer device
01/11/1994US5277264 Hydropneumatic hammer
01/05/1994CN1080354A Successive hole boring mahchine and lost strike preventing device for successive hole boring machine
12/1993
12/29/1993EP0576167A1 Hole boring machine with lost strike preventing device
12/29/1993EP0354943B1 Percussion tool for surgical instruments
12/28/1993CA1325562C Reciprocating percussive device
12/14/1993US5269382 Impact device
12/13/1993CA2081592A1 Low-impact air cylinder
11/1993
11/25/1993WO1993023211A1 Process and device for actuating a percussive tool by means of compressed air
11/25/1993WO1993023210A1 Impact device
11/25/1993CA2135896A1 Process and device for actuating a percussive tool by means of compressed air
11/18/1993DE4216071A1 Verfahren und Vorrichtung zum Betätigen eines Schlagwerkzeuges mittels Preßluft Method and apparatus for operating an impact tool means of compressed air
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