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WO/2015/109364A1 |
A fluid pulse apparatus for down hole drilling having a turbine assembly actuated by a flow of drilling fluid. The apparatus has a narrowed fluid flow section that cooperates with a piston that moves between an open a fluid flow restrict...
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WO/2015/092875A1 |
This impact-driven tool is provided with a cylinder and a piston which is inserted in the cylinder in a slidable manner and which has a large-diameter section. The cylinder is provided with: one end chamber which is a space defined by th...
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WO/2015/080439A1 |
The present invention relates to a hydraulic hammer, and more specifically, to a low-noise hydraulic hammer, wherein an impact bar that is accommodated inside of a piston is inclined so as not to contact the inside of the piston thereby ...
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WO/2015/073653A1 |
An apparatus, system, and method of fabricating a percussion tool that includes a flow tube. The flow tube includes upper and lower portions, inner and outer walls, and at least one opening formed in the outer wall. The upper portion ext...
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WO/2015/072955A1 |
A hydraulic percussion device intended for the impact-fracturing of rock and synthetic materials. The present invention contains a housing, in which are installed centering bushings, sealing bushings, a sleeve and a piston-striker, formi...
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WO/2015/073656A1 |
A system and method of fabricating a percussion tool that includes a choke valve that is replaceable and/or maintainable without disassembly of the percussion tool. The flow tube includes inner and outer walls and at least one opening fo...
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WO/2015/046833A1 |
The present invention relates to a backhead of a hydraulic breaker, which allows an existing backhead to be separated from a conventional hydraulic breaker case and the backhead to be fastened thereto, thereby having compatibility, and w...
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WO/2015/039162A1 |
A percussion device including an impact piston (66), a fluid system (70) for driving the impact piston, a seal 98b", a lubrication path (300), and a member (92, 93, 94). The member is mounted to slide through the seal, and has at least o...
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WO/2015/039861A1 |
A rock drilling shank adaptor comprising an elongate body having an internal flushing bore and an entry hole through the sidewall of the adaptor in fluid communication with the internal bore. The flushing hole is optimised to reduce the ...
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WO/2015/032661A1 |
Percussion drilling apparatus to affect at least one characteristic of a shock wave produced in a drill string. The apparatus comprises an elongate energy transmission adaptor 100 having a shock wave modification sleeve 101 configured wi...
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WO/2015/010977A1 |
An oil and gas recovery article comprising at least one part made of a poly(arylether sulfone) polymeric material comprising at least one poly(arylether sulfone) polymer, wherein said (t-PAES) polymer comprising more than 50 % moles of r...
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WO/2015/003215A1 |
The present invention is directed to a dynamic seal tube for use in pressurized fluid-driven down hole hammer drills. The dynamic seal tube is a tube that slides within the bore of the piston and the anvil portion of the drill bit and co...
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WO/2014/206471A1 |
A method for controlling a percussive drilling process on a work machine, the method comprising: obtaining, from at least one sensor, measurement data regarding at least one hole being percussive drilled; generating a reference pattern o...
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WO/2014/208922A1 |
The present invention relates to a hydraulic rotating striking device having a shock buffering device, which is configured to buffer a shock, formed to be able to reciprocate inside a body portion of the striking device. The hydraulic ro...
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WO/2014/179741A1 |
A method for manipulating tubulars for subterranean operations including providing a first tubular at an initial position, wherein in the initial position the first tubular is in a substantially horizontal position and a proximal end reg...
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WO/2014/168623A1 |
Disclosed is an impact generation tool used to deliver a large downhole impact force. The impact generator may include a housing having an uphole end and a downhole end and defining a chamber therein between the uphole and downhole ends,...
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WO/2014/116400A1 |
A hammer assembly (10) including a hammer housing (12) and a work tool (16) movably supported in the hammer housing is provided. A gas chamber (38) is defined in the hammer housing (12) and contains a compressible gas. An accumulator ass...
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WO/2014/104608A1 |
The present invention relates to a hydraulic rotary hitting apparatus provided with a shock absorbing device for firmly maintaining the contact between a drill bit and an object to be drilled during boring by means of a hydraulic process...
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WO/2014/092244A1 |
The present invention provides a shock-absorbing type vibration breaker comprising: an external bracket which has an internal space and a coupling hole formed on one side thereof so as to be coupled to a boom of a heavy equipment; a vibr...
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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...
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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...
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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...
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WO/2014/037619A2 |
The invention relates to a method for surveying drill holes and to a drilling arrangement and to a borehole survey assembly. The method comprises a first providing step for providing a drill tool (1) comprising at least one drill rod (2)...
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WO/2014/023085A1 |
A multi-point guidance support method for reciprocating impact machine, comprising a crank drive device (1), a hydraulic drive device (8), or a pneumatic drive device, a reciprocating impact machine (2), friction bodies (7), and a frame ...
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WO/2014/011178A1 |
A downhole tool actuation system comprises a control line in fluid communication with a control fluid source, a first piston assembly comprising a first surface in fluid communication with the control line, and a damper piston assembly c...
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WO/2014/007477A1 |
The present invention relates to a impact body for a hydraulic impact device and, more specifically, to a impact body for a hydraulic impact device which is capable of remarkably reducing production costs by inserting a cylinder liner ha...
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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...
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WO/2013/187691A1 |
The present invention relates to a hammer raising device, and more specifically relates to a hammer raising device for eliminating fluid resistance and so increasing the striking strength when a piston that has ascended up moves down. To...
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WO/2013/141531A1 |
The present invention relates to a chisel assembly having multiple chisel bars for a breaker. To this end, the breaker comprises: a back head provided with a gas chamber; a cylinder which is connected to the lower part of the back head a...
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WO/2013/123828A1 |
A rolling friction or suspension friction impact mining method and a wear-resistant impact mining machine using said method. The mining machine comprises a reciprocating impact part (3). The reciprocating impact part comprises an impact ...
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WO/2013/122531A1 |
A separate hydraulic power pack (2) for providing at least one user with an oil flow is presented. The hydraulic unit (2) comprises: a motor (14), a hydraulic pump driven by the motor (14), a tank (16), an oil inlet (20), an oil outlet (...
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WO/2013/110982A2 |
This invention relates to a booster explosive support device 10 for use in boreholes 87. The device 10 includes a securing arrangement 12 which is configured to secure an explosive booster 100 to the device 10, and a spacing element 39 w...
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WO/2013/100555A1 |
The present invention relates to a construction machinery attachment setting apparatus and method which can minimize categories which must be set by a user on an attachment setting screen by automatically inputting standard setting infor...
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WO/2013/095164A1 |
Apparatus, methods and uses that allow extended reach drilling by virtue of the provision in the drillstring and to downhole tools collective vibrations, not tuned specifically to a single resonant frequency, from a hammer assembly that ...
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WO/2013/081311A1 |
The present invention relates to an air supplying method for a cluster hammer having a nozzle installed, wherein: an air distributing block (1) defining an air distributing nozzle (3) is installed on a lower portion of an air inlet cover...
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WO/2013/033979A2 |
The present invention relates to a rolling friction impact digging method and a rolling friction impact digging machine using said method, comprising a reciprocating impact part. The reciprocating impact part comprises an impact driving ...
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WO/2012/168559A1 |
The invention relates to a percussion device of a rock breaking device, a method for controlling the percussion device and a rock drilling unit. The percussion device (11) comprises a percussion piston (33), the work cycle of which is co...
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WO/2012/168558A1 |
The invention relates to a percussion device of a rock breaking device and to a method for controlling the percussion device. The percussion device (11) comprises a percussion piston (22), the work cycle of which is controlled by means o...
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WO/2012/165850A2 |
The present invention relates to a fragment scattering protection apparatus for a brake of an excavator. The fragment scattering protection apparatus includes: a chisel protruding downward from a center of a main body of a brake to crush...
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WO/2012/161595A1 |
A device in place as, or suitable for use as, a vibrational tool of or in a downhole assembly, the device having a first magnetic assembly which is to be, or can be, rotated relative to a second magnetic assembly and which, when so rotat...
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WO/2012/150895A1 |
A circular cylindrical striker member 2 for a drilling machine adapted to transfer kinetic energy to an impulse receiving member 4. The striker member has a diameter dmax, and includes a side surface 12 and an impulse surface (6). The st...
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WO/2012/148347A1 |
The invention relates to an impact mechanism comprising a housing (32) with at least two stroke adjustment channels (18, 19, 20); an adjustment arrangement (31) with at least two adjustment pin channels (35, 36, 37, 135, 136, 137) arrang...
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WO/2012/138287A1 |
The invention concerns a hydraulic striking tool for application in rock and/or concrete cutting equipment containing a machine housing (100;200) with a cylinder (115;215) with a moveably mounted piston (145;245) which during operation p...
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WO/2012/138288A1 |
The invention concerns a hydraulic, valveless impact mechanism for use in equipment for the machining of at least one of rock and concrete comprising a machine housing (105; 205) with a cylinder bore, a piston (110; 210) mounted such tha...
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WO/2012/120403A1 |
An excitation apparatus suitable for use downhole having interengaged masses at least in part confined or guided so as to be movable as an interengaged assembly on an axis, one mass ("rotatable mass") being rotatable relative to the othe...
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WO/2012/087050A2 |
A method for controlling breaker beats of heavy construction machinery comprises the following steps: a worker selecting an action of a breaker, and a controller operating an engine according to the number of rotations that corresponds t...
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WO/2012/058027A2 |
Systems and methods are described for fracturing a production formation. A method includes drilling a well into a zone proximate to a production formation, and increasing a volume of the zone through the well in order to apply a mechanic...
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WO/2012/057432A1 |
The present invention relates to a ground drilling hammer and a sleeve thereof, and more specifically, to a ground drilling hammer and sleeve which comprises, a cylindrical casing, a back head in which external compressed air flows, a gu...
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WO/2012/031311A1 |
A rock drill including a first control valve (80), a first fluid circuit (70) suppliable with fluid via the first control valve (80), an impact piston (66) driveable by fluid pressure in the first fluid circuit, a plurality of first flui...
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WO/2012/026571A1 |
In this fluid pressure hammering device, which automatically switches/controls the stroke of a piston in accordance with the rock quality of a rock to be pulverized, control accuracy is increased. A strike-switching pilot hole (40) for r...
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