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Patent Searching and Data


Matches 351 - 400 out of 11,479

Document Document Title
WO/2014/088127A1
The present invention relates to a handpiece having a direct cooling type slimmed driving part, comprising: an outer housing provided in a rod shape so as to be graspable by the hand; a cylindrical core inserted into the outer housing of...  
WO/2014/086655A1
A method for manufacturing of a wear resistant component comprising the steps: providing a form defining at least a portion of the shape of the component; providing a powder mixture comprising 30 – 70 vol% of a powder of tungsten carbi...  
WO/2014/084772A1
A percussion device for a hydraulic rock drilling machine (1) including, inside a cylinder (4), a to and fro moveable impact piston (3), which is provided with a land portion (12) for cooperation with a braking recess (11) in the cylinde...  
WO/2014/084776A1
A device in a hydraulic rock drilling machine (1) including a distribution valve (7,7', 7") arranged in connection with the rock drilling machine for controlling hydraulic flows to different parts of the rock drilling machine, wherein th...  
WO/2014/078144A1
An inertia pump is connected to and actuated by the vibration of a vibratory device to pump lubricant to lubricate internal components of the vibratory device. The inertia pump has a bottom end cap with an inlet in fluid communication wi...  
WO/2014/076057A1
A hand-held power tool (1) has a tool receptacle (2) for holding a chiselling tool (4). A pneumatic percussion mechanism (6) of the hand-held power tool comprises a striker (14), an exciter (13) and a guide tube (26). The striker (14) is...  
WO/2014/076125A1
The setting tool (1) has a first part (2) for driving in a drop-in anchor and a second part (3), placeable on the first part along an axis (8), for drilling a drill hole for the drop-in anchor. The first part (2) has an insertion end (5)...  
WO/2014/070072A1
Damping device for a percussion device of a rock drilling machine (1) having a striking direction (R), including a damping piston (8) for action in an axial direction against a tool to be driven by the percussion device, wherein the damp...  
WO/2014/068500A2
The invention provides a control rod for a drill hammer comprising a flow passage extending from an inlet at a back head end to an outlet adjacent an opposite, inner end which is slidably locatable inside a bore of a piston and having a ...  
WO/2014/062868A1
A hammer drill includes a housing, a first ratchet fixed to the housing, a spindle rotatably supported by the housing about an axis, and a second ratchet coupled for co-rotation with the spindle. The second ratchet is engageable with the...  
WO/2012/138721A8
The present invention provides methods and systems for a rotary impact device having an annular exterior surface for use with an impact wrench for providing torque to a fastener. The rotary impact device includes an input member having a...  
WO/2014/060304A1
The invention relates to a sealing device (2) including an inner sealing ring (13) having an annular inner sealing portion (14) provided with a sealing lip (15) intended for sealingly engaging with the outer surface of a striking piston ...  
WO/2014/056014A1
The invention relates to a vibrating hammer (100..104), which comprises a cylinder (2), an impact component (4) mounted movably in relation to the cylinder (2) and having an external impact face (5), and a piston (6) slidably mounted in ...  
WO/2014/045264A1
Breaker (1) for excavator comprising a body (10) inside which a hydraulic circuit is formed which can be supplied from the outside with liquid under pressure, said hydraulic circuit comprising: an inlet (13) for the liquid under pressure...  
WO/2014/040980A1
The invention relates to a hand-held machine tool having an electric motor 7 and an output shaft 1 which can be driven by the electric motor 7 in a rotational manner about a working axis 18. The output shaft 1 comprises an cylindrical or...  
WO/2014/036573A2
This invention relates to a rock drill guide comprising: a sleeve, having an internal chamber, adapted to receive a rock drill therein, the sleeve terminating in an operative end and a drilling end, the sleeve further being connectable t...  
WO/2014/034862A1
[Problem] To provide an improved impact tool capable of reasonable impacting action. [Solution] An impact tool, for hammering on a workpiece by a tip tool moving in a straight line at least in the long axial direction, configured so that...  
WO/2014/031278A1
A fastener driving apparatus includes a vacuum piston and a drive piston, which vacuum piston, when moved (by way of a motor and linear motion converter), draws a vacuum against the drive piston, which drive piston may be held in place b...  
WO/2014/028150A1
A motor-driven hand tool having a machine body (2) and having a handgrip arrangement (3), wherein the handgrip arrangement (3) has a handgrip (4) and a coupling arrangement (5) for coupling the handgrip (4) to the machine body (2), and w...  
WO/2014/028578A2
Disclosed are various embodiments for attaching an electronic identification device to a pneumatic device. A coupling assembly is configured to couple a first pneumatic device to a second pneumatic device. The coupling assembly comprises...  
WO/2014/019333A1
A pneumatic multifunctional impactor comprises an inner tube (1), a middle tube (2), and a housing from inside to outside. The housing is formed of an upper movable sleeve cylinder (3) and a lower fixing sleeve cylinder (4) being joined....  
WO/2014/005221A1
A powered tile breaker having a main adjustable frame with handlebars located at a top end section thereof, at least one wheel located at a lower end section thereof, and an adjustable shaft connected between the top end section and the ...  
WO/2014/004869A1
A slide hammer device having a guide sleeve, a selectively moveable elongate rod received within the guide sleeve, and a hammer assembly coupled to the elongate rod. The hammer assembly is shaped to accomplish removal of an inner tube fr...  
WO/2014/003626A1
A device for a hydraulic rock drilling machine (1) for the protection of a piston seal unit (6) for sealing between a percussive piston (4) and a cylinder in a housing (2) of the rock drilling machine, wherein a piston guide (5) is posit...  
WO/2013/191589A1
The utility model relates to the field of road mechanical engineering and can be used in devices for the clearing and removal of snow and ice formations from the surface of roads and sidewalks. The device comprises a working member (1) i...  
WO/2013/186050A1
A machine tool has a tool holder (6) which is arranged for moveable mounting of a chiselling tool (7) along an axis of movement (3). A magnetopneumatic percussion mechanism (2) contains a primary drive (22) which is disposed around the a...  
WO/2013/185946A1
The invention relates to a transmission device, in particular for a hand-held power tool, comprising a sliding member coupling (12) having at least three sliding members (18) disposed about an axis of rotation (14) and at least three spr...  
WO/2013/182384A1
The invention relates to a hand-held power tool device, comprising an output unit (12a), a striker (14a), and a rotary strike receiver (16a), which is designed to establish the transfer of rotary strikes between the striker (14a) and the...  
WO/2013/126426A8
A slide hammer may be provided. The slide hammer may include: a body defining a through hole and a first attaching surface; an auxiliary weight having a second attaching surface configured to attach to the body at the first attaching sur...  
WO/2013/181717A1
A grinding mill installation includes: a grinding mill drum; an arrangement of fasteners for securing components of a mill liner in the drum, the fasteners being accessible from the outside the drum; and at least one mechanised actuator ...  
WO/2012/138721A3
The present invention provides methods and systems for a rotary impact device having an annular exterior surface for use with an impact wrench for providing torque to a fastener. The rotary impact device includes an input member having a...  
WO/2013/174594A1
Percussion unit, especially for a rotary hammer and/or percussion hammer (12a; 12c; 12d), comprising a control unit (14a; 14c; 14d) which is designed for controlling a pneumatic percussion mechanism (16a; 16c; 16d). According to the inve...  
WO/2013/174643A1
The invention relates to a percussion mechanism unit (10a-c), in particular for a rotary and/or percussion hammer (12a; 12c), having a control unit (14a-c) which is provided to control a drive unit (16a-c) and/or a pneumatic percussion m...  
WO/2013/174598A1
The invention concerns a pneumatic percussion mechanism apparatus, in particular for a rotary and/or percussion hammer, having a striker (12a) and at least one venting unit (14a-c) which is provided to influence a movement of the striker...  
WO/2013/174359A1
The invention relates to a percussion device comprising a percussion mechanism housing which has a receiving bore in which a percussion piston is mounted such that it is movable along the longitudinal axis, wherein at least one percussio...  
WO/2013/176218A1
[Problem] To provide an improved technique for cooling the electric motor of an electric tool. [Solution] Configured is an electric tool provided with a motor (110) for driving a front end tool (119). The motor (110) has a stator (111), ...  
WO/2013/174217A1
A dual-purpose drill chuck (22) and an electric hammer drill (20) using the dual-purpose drill chuck (22). Inside of the dual-purpose drill chuck (22) is hollow; the front is a keyless or wrench type drill chuck; the back stretches, the ...  
WO/2013/174641A1
Percussion unit (10), especially for a rotary hammer and/or percussion hammer (12), comprising a control unit (14) which is designed for open-loop and/or closed loop control of a drive unit (16) and/or of a pneumatic percussion mechanism...  
WO/2013/174600A1
Percussion unit (10a-c), especially for a rotary hammer and/or percussion hammer (12a; 12c), comprising a control unit (14a; 14c) which is designed for open-loop and/or closed loop control of a pneumatic percussion mechanism (16a; 16c), ...  
WO/2013/174599A1
Percussion unit, especially for a rotary hammer and/or percussion hammer (12a-d), comprising a control unit (14a-d) which is designed for open-loop and/or closed loop control of a pneumatic percussion mechanism (16a-d). According to the ...  
WO/2013/174557A1
The invention relates to a hand-held power tool (10a-g) comprising a percussion mechanism (12a-g), especially a rotary hammer and/or percussion hammer (14a-e). According to the invention, at least one sensor unit (16a-g) comprising at le...  
WO/2013/173851A1
Manual chisel for making hole on brick or cement wall thanks to rotatable countersink (2) when it receives power, similar to the way an electric drill works, that drills through cement or brick and makes hole by hand.  
WO/2013/048753A3
A hydraulic hammer having a front head and a lower bushing is disclosed. Also disclosed is a system and method for easily removing the lower bushing from the front head. The front head of the hydraulic hammer may define a bore therein an...  
WO/2013/149608A1
The present invention relates to a hydraulic attachment comprising a hydraulic circuit, the attachment being a construction or demolition tool, in particular a hydraulic breaker, demolition shears, scrap shears, a pulveriser, a gripper, ...  
WO/2013/143520A1
The present invention relates to a valve for a hydraulically operated percussion mechanism having a main valve (2, 102) which is in the form of a rotary slide valve having a rotary slide. In order to reduce the installation space and the...  
WO/2013/140793A1
An impact tool includes a casing (13) supporting a tip tool (12), a piston (41) provided in the casing (13), an electric motor (11) provided in the casing (13), a motion converting mechanism (45) provided in the casing (13), and a vibrat...  
WO/2013/139425A1
A rotary and/or slide hammer has a drive (1), a striking mechanism (2) driven by the drive, and a holding device (4) for holding of the hammer by an operator. A force recognition device (6) can detect the operator's pressing force on the...  
WO/2013/137718A1
A safety hammer (1) for breaking glass, comprises a housing (2) com¬ prising at least two shell parts (2a, 2b); a hammer head (3) having at least one end (4) for breaking the glass, wherein the hammer head (3) is at least partly enclose...  
WO/2013/107438A3
The invention relates to a tool for driving (10) fasteners for a fastening element that can be anchored in a bore (12) of a anchoring support (14) by driving using a hammer drill or the like, the fastening element comprising an expandabl...  
WO/2013/134126A1
Power tools with housings or hammer cases include a thin wall titanium shell tapering from a smaller forward section to a larger rearward section; with at least the rearward section having a wall with a substantially constant wall thickn...  

Matches 351 - 400 out of 11,479