Patents for B25D 11 - Portable percussive tools with electromotor drive (2,197)
04/2005
04/07/2005US20050072584 Hand power tool with a percussion mechanism, and as a method of operating the hand power tool
03/2005
03/31/2005DE19801986B4 Vorrichtung zum Schalten von Betriebsmodi für eine Hammerbohrmaschine Apparatus for switching modes for a hammer drill
03/31/2005DE10340503A1 Adjustment to compensate for wear of cutting tool on a CNC machine tool has cutter spindle moved by spreader bar
03/24/2005WO2005027151A2 Stroke device
03/23/2005CN2686814Y Improved electric hammer
03/16/2005CN2685020Y Electric hammer
03/16/2005CN1192861C Impact drill
03/03/2005US20050045352 Method for driving electric percussion tool
03/02/2005CN1586822A Impact type dust collecting electric hammer
02/2005
02/17/2005DE10348514B3 Hand-held machine tool for hammer drilling has connecting rod with first part connected to cam and second part connected to piston
02/17/2005DE10333799B3 Hohlkolbenschlagwerk mit Luftausgleichs- und Leerlauföffnung Hollow piston hammer with Luftausgleichs- and idle opening
02/15/2005US6854530 Method for driving electric percussion tool
02/09/2005CN1575932A Movable electric tool
02/03/2005WO2005009688A2 Hollow piston hammer device with air equilibration and idle openings
02/03/2005US20050023017 Power tool
02/03/2005DE10332521A1 Method for driving an reciprocating electric hand tool, has a tool holder attached to the armature of an electromagnet and a motion sensor to establish length of movement of the tool
02/03/2005DE102004030580A1 Antriebsmechanismus und Kraftwerkzeug Drive mechanism and power tools
02/02/2005EP1502710A2 Power tool
01/2005
01/27/2005US20050016001 Drive mechanism and power tool
01/26/2005CN1569401A Energy-storage impact mechanism of electric hammer
01/26/2005CN1186173C Electric hand tool with idle running switch off
01/18/2005US6843327 Manual machine tool
01/05/2005CN2668342Y Output shaft rotation limiting mechanism at hammering state for multifunctional electric hammer
01/05/2005CN2668341Y Output shaft rotation limiting mechanism at hammering state for multifunctional electric hammer
12/2004
12/30/2004US20040261273 Drive mechanism and power tool
12/30/2004DE102004024154A1 Hammer Hammer
12/29/2004CN1181953C Carr bit electric driven hand-held tool
12/08/2004CN2661386Y Electric tool with tool head carrying device
12/02/2004US20040238192 Hammer
12/01/2004CN1551816A Rotary hammer
12/01/2004CN1550294A Power tool
11/2004
11/25/2004US20040231869 Hammer
11/23/2004US6820700 Chuck for a percussion tool
11/18/2004US20040226728 Process for controlling an axially hammering and rotating electric hand-held machine tool
11/11/2004US20040222001 Power tool
11/10/2004EP1475190A2 Power tool
11/04/2004DE10316844A1 Steuerung einer Elektrohandwerkzeugmaschine Control of an electric power tool
11/03/2004EP1472050A1 Pneumatic spring percussion mechanism with an electro-dynamically actuated driving piston
11/02/2004US6810969 Hand machine tool
10/2004
10/28/2004DE4441820B4 Bohr- und/oder Schlaghammer Drilling and / or percussion hammer
10/26/2004US6808026 Pneumatic percussive tool with a short working drive piston
10/21/2004US20040206525 Percussion device
10/21/2004US20040206521 Percussive electrical hand-held power tool
10/21/2004US20040206520 Electric hammer
10/20/2004EP1468802A1 Concrete drill
10/20/2004EP1368160B1 Pneumatic percussive tool with a movement frequency controlled idling position
10/14/2004US20040200628 Control for a hand-held electric machine tool
10/14/2004DE10302089B3 Schlagende Elektrohandwerkzeugmaschine mit einem Piezoaktor Beating electric power tool with a piezoelectric actuator
10/13/2004EP1466702A1 Control of a power tool
10/07/2004US20040194987 Hammer
10/07/2004US20040194986 Reciprocating power tool
10/07/2004DE10313782A1 Elektrowerkzeug Power Tool
10/06/2004EP1464449A2 Power tool
10/06/2004CN1533866A 电动工具 Power Tools
10/05/2004US6799643 Percussion electrical hand-held tool
09/2004
09/29/2004EP1261459B1 Pneumatic piston percussive mechanism with a hollow percussion piston
09/29/2004CN1532029A Electric tool machine
09/23/2004US20040182589 Percussion electrical hand held tool
09/16/2004US20040177981 Hammer drill and /or percussion hammer with no-load operation control that depends on application pressure
09/09/2004DE19937767B4 Handgeführter elektrischer Kombihammer Hand-held electric combination hammer
09/07/2004US6785950 Battery-powered wire insertion impact tool
09/02/2004DE10294312T5 Rotationshammer Rotary hammer
09/01/2004EP1452278A1 Control method of a percussion power drill
08/2004
08/25/2004EP1448342A1 Manual machine-tool comprising a pneumatic striking mechanism
08/25/2004CN2635292Y Power tool usable as charger
08/18/2004CN2633529Y Forced new electric rock drill
08/18/2004CN1162238C Trifunctional crankshaft-type electric hammer controlled by single knob
08/12/2004DE10309012B3 Control method for hand-held electric hammer drill using microcontroller for repetitive opening and closing of clutch between electric motor and tool chuck
08/11/2004CN1520349A Machine-tool, in particular drilling and/or chipping hammer
08/11/2004CN1519084A Mounting structure of hook of rechargeable electric tool
08/05/2004DE19654272B4 Motorgetriebenes Werkzeug mit einem Mechanismus zum Einstellen der Drehwinkelposition eines Werkzeugs A power tool having a mechanism for adjusting the rotational angle position of a tool
08/05/2004DE10304407A1 Blow piston for pneumatic rammer of striking machine tool, includes hollow space which is filled with mass particles such that mass particles are loosely arranged, and are adapted to directly and mechanically contact each other
07/2004
07/29/2004DE19929183B4 Luftfederschlagwerk mit Hohl-Schlagkolben mit Leerlauföffnung Pneumatic percussive tool with hollow-percussion piston with idle opening
07/29/2004DE19713154B4 Schlagwerkzeug mit verringertem Stoß zum Beginn des Schlagbetriebs Impact tool with reduced impact to the beginning of the stroke operation
07/22/2004WO2004060615A1 Drill hammer or paving breaker
07/21/2004EP1439038A1 Electric hammer
07/21/2004EP1438161A1 Tool holder
07/21/2004EP1438160A1 Hammer
07/21/2004EP1438156A2 Drilling and/or hammering tool
07/14/2004EP1437200A1 Reciprocating power tool
07/14/2004EP1436124A1 Manual machine tool
07/07/2004CN1156355C Manual pilot electric combiner
07/06/2004US6758288 Rotary-percussion electrical tool
07/01/2004DE10260710A1 Bohr- oder Schlaghammer Drilling or hammer
07/01/2004DE10259566A1 Schlagende Elektrohandwerkzeugmaschine Beating electric hand tool
06/2004
06/30/2004EP1432552A1 A percussion device
06/30/2004CN1507988A Impaction electric hand-held tool machine
06/23/2004EP1431005A2 Percussion electric hand tool
06/17/2004US20040112614 Hammer
06/16/2004EP1428631A2 Apparatus for producing self-exciting hammer action, and rotary power tool incorporating such apparatus
06/10/2004US20040108123 Hammer drill with a mechanism for preventing inadvertent hammer blows
06/09/2004EP1425138A1 Hammer drill and/or percussion hammer with no-load operation control that depends on application pressure
06/09/2004CN1502449A A hand tool machine particularly in the form of a drilling or percussion hammer
06/09/2004CN1502436A Percussion drill
06/03/2004DE10253972A1 Handwerkzeugmaschine, insbesondere Bohr- oder Schlaghammer Hand tool, in particular drilling or hammer
06/02/2004EP1355764B1 Pneumatic percussive tool with a short working drive piston
05/2004
05/26/2004EP1422028A1 Hammer drill with a mechanism for preventing inadvertent hammer blows
05/26/2004EP1420921A1 Machine-tool, in particular drilling and/or chipping hammer
05/25/2004US6739957 Apparatus for reciprocally powering one or more working tools
05/19/2004CN1496790A Air cushion impactor
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