Patents
Sitemap › B25 - Hand tools; Portable power-driven tools; Handles for hand implements; Workshop equipment; Manipulators › B25D - Percussive tools › B25D 11 - Portable percussive tools with electromotor drive
Patents for B25D 11 - Portable percussive tools with electromotor drive (2,197)
08/2001
08/23/2001WO2001060564A1 Power tool
07/2001
07/25/2001EP1117508A1 Pneumatic percussion power tool with pneumatic returning spring
07/18/2001CN1068538C Drilling and/or rock drill
07/11/2001EP1114700A2 Cam drive mechanism
06/2001
06/14/2001US20010003316 Mechanical hammer for sculptors
06/13/2001EP1106307A1 Mechanical hammer
06/07/2001DE19958420A1 Sprung striking tool has cam shaft coaxial with torsional leg spring, coupling and sleeve
05/2001
05/30/2001CN1066380C Drilling and/or punching apparatus
05/29/2001US6237700 Pneumatic impact mechanism with a drive piston having a reduced wall thickness
05/16/2001CN2430249Y 工程冲击锤 Engineering hammer
05/02/2001CN1065165C Drilling and/or punching apparatus
04/2001
04/11/2001EP1089855A1 Pneumatic impact mechanism with a drive piston having a reduced wall thickness
04/11/2001CN1290803A Back screw lifting device for hand-held electric or pneumatic rock drill
04/10/2001US6213222 Cam drive mechanism
02/2001
02/27/2001US6192995 Rotary impacting apparatus
02/22/2001DE19937767A1 Handgeführter elektrischer Kombihammer Hand-held electric combination hammer
02/14/2001EP1075905A2 Hand-held electrical hammer
02/14/2001CN1283537A Manual pilot electric combiner
01/2001
01/25/2001WO2001005558A1 Drilling hammer or impact hammer
01/25/2001DE19933972A1 Bohr- oder Schlaghammer Drilling or hammer
01/24/2001EP1070569A1 Impact machine
01/04/2001WO2001000368A2 Pneumatic piston percussive mechanism with a hollow percussion piston
01/04/2001DE19929183A1 Luftfederschlagwerk mit hohlem Schlagkolben Pneumatic percussive tool with a hollow percussion piston
12/2000
12/13/2000CN1276751A Power tool
11/2000
11/07/2000US6142242 Percussion driver drill, and a changeover mechanism for changing over a plurality of operating modes of an apparatus
10/2000
10/17/2000US6131671 Power-driven tool having a mechanism for setting the rotary angle position of a tool bit
10/03/2000US6127751 Electric tool
09/2000
09/19/2000US6119796 Pneumatic spring percussion mechanism with an air supply
09/12/2000US6116352 Drilling and/or percussion power tool
09/07/2000DE10006641A1 Percussion drill with mode changeover device has first changeover element for changing between rotation/hammer, rotation only modes, second changeover element for torque matching
08/2000
08/15/2000CA2033848C A percussion device
08/10/2000DE19903166A1 Schlagwerk für eine Bohrmaschine Percussion for a drill
08/03/2000WO2000044533A1 Rammer for a drilling machine
08/02/2000CN1055042C Hand-held type machine for trenching or cutting
07/2000
07/18/2000US6089330 Device for transmitting pulsed axial percussions to a bore-forming tool
07/12/2000CN2386925Y Electric hammer
07/11/2000US6085850 Miniature impact tool
07/05/2000EP1016503A2 Handheld drill and/or chisel apparatus
06/2000
06/08/2000DE19856638A1 Drive for electric tool, especially percussion drill, has wobble finger protruding from wobble ring of wobble plate arrangement that engages lateral holder in reciprocating component
06/08/2000DE19855750A1 Hand-guided drill and/or chisel has percussion body that can be periodically axially displaced using controlled magnetic field from coils and at least one high power permanent magnet
06/07/2000EP1005403A1 Power tool
06/07/2000CN1255416A Manually-operated drill and/or chiselling machine
05/2000
05/11/2000WO2000025988A1 Wobble mechanism for a striking tool
05/04/2000DE19850369A1 Taumelgetriebe für ein Schlagwerkzeug Wobble mechanism for an impact tool
04/2000
04/27/2000DE19847687A1 Hammer drill or hammer tool with an air spring has a connecting opening to link the air spring zone with the ambient atmosphere on idle running for a smooth change between working and idle running modes
04/19/2000EP0993355A1 Pneumatic spring percussion mechanism with an air supply
04/18/2000CA2148167C Drilling and chipping tool
04/06/2000DE19843644A1 Rohrschlagwerk mit Rückholluftfeder Pipe movement with Rückholluftfeder
04/06/2000DE19843642A1 Luftfederschlagwerk mit Rückholluftfeder Pneumatic percussive tool with Rückholluftfeder
04/05/2000CN1249225A Electric power tool
03/2000
03/30/2000WO2000016949A1 Tubular percussion power tool with pneumatic returning spring
03/30/2000WO2000016948A1 Pneumatic percussion power tool with pneumatic returning spring
03/30/2000DE19844501A1 Hand-operated drilling machine has electric motor arranged with drive axle at angle to drilling axis and gearbox has gear stages in separate chambers
03/15/2000CN1247494A Striking tool provided with air-cushion impact mechanism
03/14/2000US6035945 Operating mode switching apparatus for a hammer drill
03/09/2000DE19839963A1 Elektrowerkzeug Power Tool
03/08/2000EP0984545A2 Electric power tool
01/2000
01/13/2000DE19828426A1 Antriebskolben mit geringer Wandstärke für ein Luftfederschlagwerk Drive pistons with low wall thickness for a pneumatic percussive tool
01/13/2000DE19828423A1 Antriebskolben für ein Luftfederschlagwerk Drive piston for an air spring percussion
12/1999
12/29/1999WO1999067064A1 Pneumatic impact mechanism with a drive piston having a reduced wall thickness
12/29/1999WO1999067063A1 Drive piston for a pneumatic impact mechanism
12/14/1999US6000478 Vibrating device for a sculpturing tool
12/09/1999DE19825410A1 Hand power hammer drill tool
12/02/1999DE19824174A1 Drive power control method for double-solenoid impact tool e.g. hammer tool
11/1999
11/30/1999US5992541 Drilling and/or chiselling tool
11/30/1999US5992538 Impact tool driver
11/24/1999CN1236338A Impact tool driver
11/16/1999US5984027 Engine-driven breaker
11/02/1999US5975217 Tool for drilling and/or chiseling
10/1999
10/26/1999US5971044 Tool with parallel corners for splitting wood
09/1999
09/22/1999EP0942809A1 Impact tool driver
08/1999
08/26/1999DE19810088C1 Hammer and boring drill
07/1999
07/21/1999EP0929381A1 Striking tool provided with an air-cushion impact mechanism
07/01/1999WO1999032266A1 Impact machine
04/1999
04/28/1999CN2316096Y Impact block
03/1999
03/18/1999WO1998058773A3 One-sided pneumatic impact tool with idling position
03/17/1999CN2310655Y Electric impact drill
03/04/1999WO1999010131A1 Power tool
02/1999
02/23/1999US5873418 Percussive tool having a reduced impact at the start of percussive operation
02/18/1999WO1999007521A1 Impact tool driver
02/16/1999US5871059 Mechanism for preventing idling strikes in power-driven striking tools
01/1999
01/14/1999WO1999001259A1 Pneumatic spring percussion mechanism with an air supply
01/07/1999DE19728729A1 Luftfeder-Schlagwerk mit Luftaufladung Air spring percussion with air charge
01/07/1999DE19726272A1 Einseitiges Luftfeder-Schlagwerk mit Leerlaufzustand Sided air spring percussion with idle state
12/1998
12/30/1998WO1998058773A2 One-sided pneumatic impact tool with idling position
12/08/1998US5845719 Vibrating cutting machine
12/01/1998US5842527 Hammer drill with a mode change-over mechanism
11/1998
11/11/1998EP0876881A2 Drill- and/or percussion apparatus
11/11/1998EP0876880A2 Drill- and/or percussion apparatus
11/04/1998CN1197717A Drilling and/or punching apparatus
11/04/1998CN1197716A Drilling and/or punching apparatus
10/1998
10/28/1998CN1196986A Operating mode switching apparatus for hammer drill
10/22/1998DE19801986A1 Hammer drilling machine
09/1998
09/23/1998CN2291999Y Electric hammer beater mechanism
09/16/1998CN2291267Y High-efficiency percussion arrangement of eccectric slide electric drill
09/08/1998US5803183 Miniature impact tool
08/1998
08/18/1998US5794325 Electrically operated, spring-biased cam-configured release mechanism for wire cutting and seating tool
08/05/1998EP0856371A2 Device for transferring axial impulses on a drill tool
08/04/1998US5787996 Drilling and/or chiseling tool
07/1998
07/07/1998US5775440 Hammer drill with an idling strike prevention mechanism
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