Patents for B25D 11 - Portable percussive tools with electromotor drive (2,197)
06/1998
06/23/1998US5769620 Percussion mechanism for a tool working by percussion or rotary percussion
06/03/1998EP0616565B1 Power tool
04/1998
04/16/1998WO1998015388A1 Striking tool provided with an air-cushion impact mechanism
04/09/1998DE19640894A1 Mit einem Luftpolsterschlagwerk versehenes Schlagwerkzeug With an air cushion percussion hammer tool provided
03/1998
03/31/1998US5732782 Drilling and chiseling tool
03/25/1998CN1176867A Hand-held type machine for trenching or cutting
03/05/1998DE19634346A1 Hammer tool for power tool
02/1998
02/12/1998WO1998005457A1 Impact mechanism for a hammer drill
01/1998
01/28/1998CN2273243Y 电锤 Hammer
01/27/1998US5711379 Hammer drill
01/22/1998DE19628946A1 Handwerkzeugmaschine Hand tool
01/14/1998CN1169903A Power driven hammer drill with anti-useless-strike
01/06/1998US5704433 Power tool and mechanism
10/1997
10/30/1997DE19713154A1 Striking tool e.g. electric hammer, percussion drill
10/21/1997US5678641 Drilling and chipping tool
09/1997
09/23/1997US5669453 Power carving tool
09/16/1997US5666715 Electrically operated impact tool gun
08/1997
08/07/1997DE19604169A1 Halterung eines Zusatzgeräts für Handwerkzeugmaschinen Mounting an auxiliary device for hand power tools
08/05/1997US5653294 Impact mechanism for a hammer drill
07/1997
07/02/1997CN1153091A Drilling and/or rock drill
06/1997
06/26/1997DE19654272A1 Powered tool, especially hammer
06/19/1997WO1997021524A1 Portable hand complex machine
06/18/1997CN1151921A Drilling and quarrying machine
05/1997
05/13/1997US5628374 Hammer drill with inclined clutch plate
05/07/1997EP0771620A1 Drilling and chiseling tool
05/07/1997EP0771618A2 Drilling and/or chiseling tool
05/07/1997CN2253687Y Electric driving flexible axle type one-direction vibrating device
02/1997
02/26/1997EP0759342A2 Hammer drill with a mode change-over mechanism
02/26/1997EP0759341A2 Hammer drill with an idling strike prevention mechanism
12/1996
12/05/1996DE19621090A1 Hammer drill for concrete and similar
11/1996
11/05/1996USRE35372 Apparatus for driving a drilling or percussion tool
10/1996
10/16/1996EP0646056B1 Process and device for actuating a percussive tool by means of compressed air
08/1996
08/07/1996EP0724938A1 Tool with parallel wedges for splitting wood
08/01/1996CA2141508A1 Parallel wedge apparatus for splitting wood
06/1996
06/26/1996EP0718075A1 Electromagnetic percussion device
05/1996
05/30/1996DE4441820A1 Bohr- und/oder Schlaghammer Drilling and / or percussion hammer
05/07/1996US5513709 Power tool
04/1996
04/30/1996US5511912 Hand tool attachment
04/17/1996EP0706861A1 Power tool and mechanism therefor
03/1996
03/27/1996EP0703043A1 Hammer drill with inclined clutch plate
03/12/1996US5497555 Electromagnetic percussion device
02/1996
02/29/1996DE4430152A1 Hand held appts. e.g. power tool with electric toroidal magnet oscillating drive
02/27/1996US5494115 Electric hammer drill
02/06/1996US5488997 Rotary impacting apparatus
01/1996
01/03/1996CN2216450Y Slotting percussive tool
11/1995
11/08/1995EP0680807A1 Drilling and chiseling tool
11/08/1995EP0544865B1 Drill or percussion hammer
10/1995
10/17/1995US5458206 Power tool and mechanism
10/11/1995EP0552328B1 Percussion drill
09/1995
09/13/1995CN1108170A Power tool and mechanism
09/12/1995US5449044 Miniature impact tool
09/12/1995US5449043 Chuck spindle device and power tools incorporating same
08/1995
08/22/1995US5443196 Fastener applicator
08/10/1995WO1995021039A1 Portable hand-held machine
08/10/1995DE4404095A1 Gem setting hammer for jewellery
07/1995
07/27/1995DE4401664A1 Bohrhammer Rotary Hammer
07/25/1995US5435397 Rotary hammer with a pneumatic hammer mechanism
07/19/1995EP0663270A1 Impact hammer with rotative and/or percussive action
06/1995
06/27/1995US5427188 Power tool
06/14/1995DE4341753A1 Electric tool
06/14/1995CN2200517Y Electric tool
04/1995
04/19/1995EP0648582A1 Rotary impacting apparatus
12/1994
12/27/1994US5375665 Motorized driving tool
12/20/1994US5373905 Hammer drill
11/1994
11/22/1994US5366025 Drill and/or percussion hammer
11/17/1994EP0185744B2 A method and a tool for increasing the width in the clear of a chimney
09/1994
09/28/1994EP0616565A1 Power tool
09/13/1994CA2007428C Hydraulic jackhammer
09/07/1994EP0613758A1 Power tool and mechanism therefor
09/06/1994US5343961 Power transmission mechanism of power-driven rotary tools
08/1994
08/24/1994EP0474651B1 Drill or percussion tool with coupling in the percussion drive
08/16/1994US5337835 Drill and/or impact hammer
08/11/1994DE4303363A1 Stepping motor, especially for producing strong impact loads
08/10/1994EP0515371B1 Hand-held machine tool
06/1994
06/01/1994EP0599537A1 Rotary hammer with a pneumatic hammer mechanism
04/1994
04/06/1994EP0590352A1 Impact and/or drillhammer
03/1994
03/30/1994EP0589267A2 Drill- and/or impact hammer
03/01/1994US5289887 Method of operating an earth boring machine
01/1994
01/25/1994CA1326380C Device for driving a drilling and/or percussion tool
01/11/1994US5277259 Hammer drill with hammer drive action coupling
11/1993
11/25/1993WO1993023211A1 Process and device for actuating a percussive tool by means of compressed air
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
09/1993
09/29/1993EP0429475B1 Hammer drill or concrete breaker
09/28/1993US5248001 Tractor-mounted machine and method for driving steel posts
09/15/1993EP0560512A1 Rotary hammer
07/1993
07/28/1993EP0552328A1 Percussion drill.
06/1993
06/24/1993WO1993011910A1 Power tool
06/16/1993EP0546834A1 Fastener applicator
06/12/1993CA2085088A1 Fastener applicator
06/09/1993EP0544865A1 Drill or percussion hammer.
05/1993
05/06/1993DE4236819A1 Machine tool power transmitting appts. from driver to rotating drive shaft - translates both rotary and to and fro movement to spindle from rotary moment of drive mechanism to drive rotating tool
03/1993
03/31/1993EP0444030B1 Drilling hammer
03/02/1993CA1313979C Synchronized hammer coupling
01/1993
01/26/1993CA1313201C Dampener for impacting mechanism
01/21/1993WO1993001027A1 Percussion drill
01/14/1993DE4215288A1 Bohrhammer Rotary Hammer
01/07/1993WO1993000201A1 Drill or percussion hammer
01/07/1993DE4121279A1 Bohr- und/oder schlaghammer Drilling and / or percussion hammer
12/1992
12/30/1992CN1019650B Device for hammering fastening elements into hard material
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