EP2616623A1 - Hydraulic rotary percussion apparatus for boring mine holes - Google Patents
Hydraulic rotary percussion apparatus for boring mine holesInfo
- Publication number
- EP2616623A1 EP2616623A1 EP11764832.9A EP11764832A EP2616623A1 EP 2616623 A1 EP2616623 A1 EP 2616623A1 EP 11764832 A EP11764832 A EP 11764832A EP 2616623 A1 EP2616623 A1 EP 2616623A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- distributor
- control
- cylinder
- chamber
- hand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009527 percussion Methods 0.000 title abstract description 3
- 239000012530 fluid Substances 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 description 7
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B6/00—Drives for drilling with combined rotary and percussive action
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/02—Drives for drilling with combined rotary and percussive action the rotation being continuous
- E21B6/04—Separate drives for percussion and rotation
Definitions
- the present invention relates to a hydraulic rotary percopercutant perforator type, for the perforation of boreholes.
- Drilling machines are used in various applications, such as drilling quarries, tunnels or mines. These machines are composed of a carrier part, said carrier, on which is a slide, the latter receiving a rotopercutant device, the punch type.
- a rotopercutant apparatus generally consists of a striking mechanism and a rotation mechanism. This device, installed on the carrier, then receives a hydraulic supervise and turns it into mechanical power of striking and rotation to perform the mining holes through a fitting, a drill bar and a cutting edge in contact with the rock.
- the striking mechanism is generally rigidly assembled in the casing of the rotopercutant apparatus while the rotation mechanism comprising a motor mounted laterally on an axis parallel to that of the striking mechanism, drives in rotation, by means of reduction gears. , the fitting of the drill bar. This fitting is therefore driven by a rotational movement and receives the impacts, provided by the piston, of the striking mechanism.
- Document FR 2 902 821 discloses a rotopercutant apparatus comprising a support casing, and a striking mechanism comprising a longitudinal body, rotatably mounted in the casing along the axis of the body, comprising a cylinder extending according to FIG. body axis, a striking piston mounted issuant within the cyl rim and intended to strike a fitting coupled to at least one drill bar, and a dispensing device arranged to control an alternating movement of the striking piston along the axis of the body.
- the rotopercutant apparatus further comprises a motor arranged to rotate the body of the striking mechanism along an axis of rotation substantially coinciding with the axis of the body.
- the dispensing device belonging to the rotopercutant apparatus described in document FR 2 902 821 comprises, although not shown in the figures, an annular distributor disposed around the striking piston.
- the document GB 670 538 discloses a pneumatic rotopercutant apparatus, comprising a housing, and a pneumatic striking mechanism comprising a longitudinal body, rotatably mounted in the housing along the axis of the body, comprising a cylinder extending along the axis of the housing. body, a striking piston slidably mounted inside the cylinder and arranged to strike a fitting of a drill bar, and a dispensing device arranged to control an alternating movement of the striking piston along the axis of the body.
- the dispensing device comprises a coupling surrounding the body of the striking mechanism and intended to be connected to a source of compressed air, and different channels arranged to allow the supply of compressed air volumes disposed on either side of the piston in order to ensure its reciprocating movement, the different channels being formed on the coupling, the casing and the striking piston itself.
- Such a dispensing device has the particular consequence of complicating the structure of the rotopercutant apparatus.
- the rotovulling apparatus described in GB 670,538 also comprises a pneumatic motor arranged to rotate the body of the striking mechanism along an axis of rotation substantially coinciding with the axis of the body.
- the technical problem underlying the invention consists in particular in providing a hydraulic rotopercutant device which is simple in structure, economical and compact, and has improved performance.
- the present invention relates to a hydraulic rotary percopercutant device of the perforator type, intended for the perforation of boreholes, comprising:
- a striking mechanism comprising a longitudinal body, rotatably mounted in the casing along the axis of the body, comprising a cylinder extending along the axis of the body, a striking piston slidably mounted inside the cylinder and for to strike a fitting coupled to a drill bar equipped with a tool, and a dispensing device arranged to control an alternating movement of the striking piston along the axis of the body,
- a motor arranged to rotate the body of the striking mechanism along an axis of rotation substantially coinciding with the axis of the body
- the striking mechanism comprises a closure cap mounted on the body and arranged to close one end of the body, the closure cap being rotatably coupled to an output shaft of the engine and having at least one part the dispensing device.
- closure cover comprises at least partly the dispensing device makes it possible to obtain a more compact rotopercutting device, and to use a distributor of smaller dimensions, which limits the leakage of fluid under pressure and thus improves the performance of the device.
- the rotopercutant apparatus is hydraulic, and therefore the engine is a hydraulic motor and the striking mechanism is a hydraulic striking mechanism, makes it possible to overcome the presence of pinions and toothed wheels, which decreases the cost of the device.
- the closure lid is directly rotatably coupled to the output shaft of the engine.
- the apparatus comprises a high pressure fluid supply circuit, a low pressure return circuit, and a vacuum chamber. thrust delimited at least in part by the body and the striking piston and arranged to be put alternately in relation with the supply circuit and the return circuit, under the action of the dispensing device.
- the dispensing device comprises a distributor and distributor movement control means arranged at least in part in the closure lid.
- the distributor is mounted in a first bore formed in the closure lid.
- the distributor comprises a first control face and a second control face opposite to the first face
- the control means comprise at least a first control channel opening on the one hand in the cylinder and on the other hand in a first portion of the first bore located on the side of the first face of the distributor, and a second control channel opening on the one hand in the cylinder and on the other hand in a second portion of the first bore located on the side of the second face of the dispenser, the first and second control channels being formed at least partly in the closure cap and being arranged to control the distributor according to the position of the striking piston in the cylinder.
- the dispenser comprises a central portion, a first end portion extending parallel to the axis of the dispenser and a second end portion opposing the first end portion and extending in parallel.
- the central portion is slidably mounted in a second bore formed in the body of the striking mechanism, the first end portion is slidably mounted in a housing formed in the closure cap and opening into the second bore and the second end portion is slidably mounted in a housing formed in the body and opening into the second bore.
- control means comprise a first control chamber delimited by the free end of the first end portion and the closure cover, a second control chamber delimited by the free end of the second end portion and the body, a first control channel permanently connected to the supply circuit and opening into the first control chamber, and a second control channel opening on the one hand in the cylinder and on the other part in the second control chamber, the second control channel being arranged to be put alternately in relation with the supply circuit and the return circuit, depending on the position of the piston cylinder in cylinder.
- the first control channel is formed at least partly in the closure lid.
- the second end portion has a section greater than that of the first end portion.
- the distributor is slidably mounted in the cylinder and comprises a tubular portion whose end facing the striking piston is closed by a bottom wall delimiting, with the striking piston and the body, the chamber thrust.
- control means comprise at least a first control chamber delimited at least in part by the closure cap and the tubular portion of the distributor, and a first control channel opening on the one hand in the first control chamber and on the other. secondly in the cylinder, the first control channel being arranged to be connected alternately to the supply circuit and the return circuit, depending on the position of the striking piston in the cylinder.
- the bottom wall of the distributor has at least one calibrated orifice, preferably axial, arranged to put in communication the thrust chamber and the first control chamber.
- the dispensing device comprises a thrust portion extending parallel to the axis of the distributor and slidably mounted in a housing formed in the closure lid, the thrust portion comprising a first end and an opposite second end. at the first end, arranged to cooperate with the bottom wall of the distributor, and the control means comprise at least a second control chamber defined by the closure cover and the first end of the pushing portion, and a second channel of pilot opening into the second control chamber and permanently connected to the supply circuit.
- the thrust portion is integral with the dispenser and extends from the bottom wall of the latter.
- the thrust portion is not integral with the distributor, and is formed by a part independent of the latter.
- the dispenser is slidably mounted in the cylinder between a first, so-called close position, in which the tubular portion of the dispenser is located close to the closure cap, and preferably bears against the closure cap, and a second position said remote, wherein the tubular portion of the dispenser is located away from the closure cap, and in that the striking piston is arranged to move the dispatcher of the second position to the first position during its recoil stroke.
- the dispensing device comprises at least a first distribution channel opening on the one hand into the cylinder or bore in which the distributor is mounted and on the other hand into a first annular chamber delimited by the casing and the body and connected to the supply circuit, and a second distribution channel opening on the one hand into the cylinder or the bore in which the distributor is mounted and on the other hand into a second annular chamber defined by the housing and the body and connected the return circuit, the first and second distribution channels being arranged to be connected alternately to the thrust chamber under the action of the distributor.
- the first and second distribution channels are arranged to be connected alternately to the thrust chamber through the distributor.
- the apparatus comprises rolling means arranged between the closure cap and the housing.
- rolling means make it possible to withstand the translational forces induced on the body and to avoid possible mechanical friction between the closure cap and the casing.
- the apparatus comprises a fitting comprising a first portion coupled in rotation to the body of the striking mechanism and a second portion rotatably coupled to at least one drill bar comprising a tool intended to be in contact with a rock to perforated.
- the apparatus advantageously comprises a fluid injection circuit arranged to bring an injection fluid from a fluid supply pipe to the tool and the rock to be punched so as to extract, during drilling, the rock debris out of a borehole.
- the body defines, with the striking piston, a recoil chamber permanently connected to a high-pressure power source and arranged to return the striking piston to a position remote from the fitting.
- Fig. 1 is a vertical section of a rotopercutting apparatus according to a first embodiment of the invention
- Figure 2 is a partial longitudinal sectional view of a rotopercutant apparatus according to a second embodiment of the invention.
- Fig. 3 is a longitudinal sectional view of a rotopercutting apparatus according to a third embodiment of the invention.
- Figures 4 and 5 are longitudinal sectional views of a rotopercutant apparatus according to a fourth embodiment of the invention, respectively showing the apparatus in two different operating positions.
- Figure 6 is a partial view in longitudinal section, on an enlarged scale, of an alternative embodiment of the dispensing device shown in Figures 4 and 5.
- FIG. 1 represents a hydraulic rotary percopercutant apparatus 2 of the perforator type intended for perforating boreholes.
- the rotary percussion apparatus 2 comprises a circuit 3 to which are connected a high-pressure fluid supply circuit 4 and a low-pressure return circuit 5.
- the casing 3 is equipped with a hydraulic motor 6 having an output shaft 7 , the hydraulic motor 6 is located at the rear of the device.
- the rotopercutant apparatus 2 further comprises a striking mechanism comprising a body 8, substantially cylindrical, rotatably mounted in the housing 3 along the axis A of the body and in which is formed a cylinder 9 extending next to the body axis 8.
- the striking mechanism also comprises a striking piston 1 1 slidably mounted inside the cylinder 9, and a closure cap 12 fixedly mounted on the body 8 and arranged to close a first end of the body.
- the closure cover 12 is rotatably coupled to the output shaft 7 of the hydraulic motor 6. Coupling is achieved by means of a direct coaxial drive, for example of the type shaft and grooved housing or elastic coupling.
- the axis A of the body 8 and the closure cover 12 coincide with the axis of rotation B of the motor 6.
- the hydraulic motor 6 is arranged to rotate in the housing 3, the body 8 around the axis A of the latter.
- the rotating rotational device 2 comprises a coupling 13 comprising a first portion 13a rotatably coupled to the body 8 and a second portion 13b intended to be rotatably coupled to at least one drilling bar (not shown in the figures) comprising a tool intended to be in contact with a rock to be perforated.
- the rotopercutant apparatus 2 also comprises a thrust chamber 14 delimited by the body 8, the striking piston 1 1 and the closure cover 12, and a recoil chamber 15 subjected to the supply pressure of the high pressure source, and delimited by the body 8 and the striking piston 1 1.
- the rotopercutant apparatus 2 further comprises a dispensing device arranged to control an alternating movement of the striking piston 1 1 within the cylinder 9.
- the dispensing device comprises a distributor 16 slidably mounted in a bore 17 formed in the lid closure 12, the distributor 16 comprising a first control face and a second control face opposite to the first face.
- the dispensing device further comprises a first distribution channel 18 opening on the one hand into the bore 17 and on the other hand into a first annular chamber 19 delimited by the casing 3 and the body 8 and connected to the circuit of FIG. 4, and a second distribution channel 20 opening on the one hand into the bore 17 and secondly into a second annular chamber 21 delimited by the casing 3 and the body 8 and connected to the return circuit 5.
- the first and second distribution channels 18, 20 are formed partly in the closure cover 12 and partly in the body 8, and are arranged to be connected alternately to the thrust chamber 14 under the action of the distributor 16 and by through a connecting channel 22, formed in the closure cover 12, opening on the one hand in the bore 1 7 and on the other hand in the thrust chamber 14.
- the thrust chamber 14 is intended to be connected alternately to the supply circuit 4 and the return circuit 5.
- the alternation of pressures, high and low, in the thrust chamber 14, causes, in a known manner, the reciprocating movement of the piston 1 1 at the bottom of the cyl ind re 9 and the striking of the striking piston 1 1 on the fitting 13.
- the dispensing device also comprises control means arranged to control the triggering of the movement of the distributor 16.
- the control means comprise a first control channel 23 opening on the one hand in the cylinder 9 and on the other hand in the bore 17 facing the first face of the distributor 1 1, and a second control channel 24 opening on the one hand in the cylinder 9 and on the other hand in the bore 17 facing the second face of the d 1tributor 1 .
- the first and second control channels 23, 24 are formed partly in the closure cover 12 and in the body 8.
- the first and second control channels 23, 24 are arranged to control the distributor 16 according to the position of the piston striking 1 1 in the cylinder 9, and more particularly to trigger the movement of the distributor 16 is in one direction or in the other direction according to the position of the striking piston 1 1 in the cylinder.
- the rotopercutant apparatus 2 comprises a fluid injection circuit 25 arranged to bring an injection fluid from a fluid supply pipe to the tool and the rock to be perforated so as to extract, during drilling, rock debris out of a borehole.
- the volume 28 delimited by the lid and the flange is also under pressure, and pushes the assembly formed by the body 8 and the closure cover 12 bearing against a thrust bearing 29 disposed between the body 8 and a front guide 31 of the housing.
- the striking mechanism when the striking mechanism is not powered, the operator can cause a significant thrust of the drill bar on the fitting 13 which then pushes the body 8 and the closure cap against the flange 27, causing significant friction between the closure cover and the housing can affect the operation of the rotopercutant device.
- Fig ure 2 represents a rotopercutant apparatus 2 according to a second embodiment that overcomes this disadvantage.
- the rotopercutant device comprises a thrust bearing 26 or roller disposed between the closure cover 12 and the housing 3, and more particularly between the face of the closure cover 12 opposite the strike piston 1 1 and a rear flange 27 of the housing 3.
- the presence of the thrust bearing 26 prevents damaging contact between the closure cover 12 and the flange 27 fixed to the housing 3, including when the striking mechanism is not powered.
- Fig ure 3 represents a rotopercutant apparatus 2 according to a third embodiment.
- the dispenser 32 comprises a central portion 33, a first end portion 34 extending along the axis of the dispenser and having a section smaller than that of the central portion, and a second portion of end 35, opposed at the first end portion, extending along the axis of the dispenser and having a section smaller than that of the central portion 33 and greater than that of the first end portion 34.
- the central portion 33 is slidably mounted in a bore 36 formed in the body 8 of the striking mechanism, while the first end portion 34 is mounted issuant in a housing of complementary shape formed in the closure cover 12 and opening in the bore 36, and the second end portion 35 is slidably mounted in a housing of complementary shape formed in the body 8 and opening into the bore 36.
- the control means comprise a first control chamber 37 delimited by the free end of the first end portion 34 and the closure cover 12, and a first control channel 38 opening on the one hand into the annular chamber 1 9 permanently connected to the supply circuit and secondly in the first control chamber 37.
- the control means also comprise a second control chamber 39 delimited by the free end of the second end portion 35 and the body 8, and a second control channel 41 opening on the one hand into the cylinder 9 and on the other hand into the second control chamber 39.
- the second control channel 41 is arranged to be alternately in communication with the control circuit. 4 and the return flow 5, depending on the position of the striking piston 1 1 in cylinder 9.
- the first and second distribution channels 18, 20, the second control channel 41 and the channel 22 are formed in the body 8, while the first control channel 38 is arranged partly in the closure cover 12 and partly in the body 8.
- Figures 4 and 5 show a rotopercutant apparatus 2 according to a fourth embodiment.
- the distributor 42 is slidably mounted in the cylinder 9 and has a tubular portion 43 whose end facing the striking piston 1 1 is closed by a bottom wall 44 delimiting, with the piston of strikes 1 1 and the body 8, the thrust chamber 14.
- the dispenser 42 further comprises a thrust portion 45 extending from the bottom wall 44 along the axis of the dispenser.
- the thrust portion 45 is slidably mounted in a tubular portion 46 projecting from the face of the closure lid 1 2 turned on the side of the striking piston January 1.
- the control means comprise a first control chamber 47 delimited at least in part by the tubular portion 46 of the closure cover 12, the tubular portion 43 of the dispenser 42 and an annular groove 48 formed in the face of the cover. closure 12 facing the striking piston 1 1.
- the control means also comprise a first control channel 49 opening on the one hand into the first control chamber 47, and more particularly into the annular groove 48, and on the other hand into the cylinder 9.
- the first control channel 49 is arranged to be connected alternately to the supply circuit 4 and to the return circuit 5, depending on the position of the striking piston 1 1 in the cylinder 9.
- the control means also comprise a second control chamber 51 delimitated by the closure cover 12 and the free end of the thrust portion 45, and a second control channel 52, formed partly in the cover 12. , opening on the one hand in the second control chamber 51 and on the other hand in the annular chamber 19 permanently connected to the supply circuit 4.
- the reciprocating movement of the distributor 42 is obtained by communicating the first control chamber 47 alternately with the circulation circuit 4 and the return circuit 5, so that the force resultant applied to the distributor is exercised successively in one direction and the other.
- the bottom section 44 of the distributor 42 has a plurality of calibrated orifices 53 opening on the one hand into the thrust chamber 14 and on the other hand into the first control chamber 47, and an annular sealing rib 54 facing the tubular portion 46 and arranged to cooperate with the free end of the latter so as to prevent the connection of the thrust chamber 14 and the first control chamber 47 through the calibrated orifices 53.
- the initial state is that represented in FIG. 4, in which the distributor 42 is in a bearing position against the closure cap and the striking piston 1 1 is in a bearing position against the distributor 42.
- the first control chamber 47 being connected to the return circuit 5 notably via the first control channel 49 and the striking piston 11.
- the resultant of the forces applied to the striking piston 1 1 causes the striking stroke of the piston 1 1 on the fitting 13, since the thrust chamber 14 is connected to the supply circuit 4 via the first distribution channel 18 .
- the striking piston 11 When the striking piston 11 has carried out a certain portion of its striking stroke, the latter establishes a communication between the supply circuit 4 and the first control channel 49.
- the first pilot chamber 47 is then at high pressure, so that the resultant forces applied to the distributor 42 causes a displacement of the latter in contact with the striking piston January 1, as shown in Figure 5 .
- the latter closes the outlet of the first distribution channel 18 in the cylinder 9, and opens the outlet of the second distribution channel 20 in the cylinder 9, the thrust chamber 14 is then put in communication with the return circuit 5 via the calibrated orifices 53, the first control chamber 47 and the second distribution channel 20.
- the striking piston 1 1 Due to the pressure exerted on the striking piston 1 1 by the pressurized fluid contained in slab 1 5 and the communication of the thrust chamber 14 with the return flow 5, the resulting from the forces applied to the striking piston 1 1 causes the recoil stroke of the piston 1 1. During its recoil stroke, the striking piston 1 1 carries with it the distributor 42 to the contact on the closure cover 12. The striking piston 1 1 and the distributor 42 are found in their position shown in Figure 4 , and the next cycle can then be initiated.
- FIG. 6 represents a dispensing device which differs from that shown in FIGS. 4 and 5 essentially in that the thrust portion 45a is formed by a part independent of the distributor 42, but whose movement remains integral with that of the distributor 42.
- the invention is not limited to the embodiments of this rotopercutant apparatus, described above as examples, it encompasses all the variants.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1057262A FR2964691B1 (en) | 2010-09-13 | 2010-09-13 | HYDRAULIC ROTOPERCUTANT APPARATUS FOR PERFORATING MINE HOLES |
PCT/FR2011/052008 WO2012089949A1 (en) | 2010-09-13 | 2011-09-02 | Hydraulic rotary percussion apparatus for boring mine holes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2616623A1 true EP2616623A1 (en) | 2013-07-24 |
EP2616623B1 EP2616623B1 (en) | 2016-03-02 |
Family
ID=43806706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11764832.9A Active EP2616623B1 (en) | 2010-09-13 | 2011-09-02 | Hydraulic rotary percussion apparatus for boring mine holes |
Country Status (9)
Country | Link |
---|---|
US (1) | US9194182B2 (en) |
EP (1) | EP2616623B1 (en) |
KR (1) | KR101721893B1 (en) |
CN (1) | CN102400643B (en) |
AU (1) | AU2011351026B2 (en) |
CA (1) | CA2808992C (en) |
ES (1) | ES2573678T3 (en) |
FR (1) | FR2964691B1 (en) |
WO (1) | WO2012089949A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104389515B (en) * | 2014-11-18 | 2016-08-24 | 长沙天和钻具机械有限公司 | A kind of hydraulic drill rig jump bit |
CN104453704B (en) * | 2014-11-18 | 2016-08-24 | 长沙天和钻具机械有限公司 | A kind of hydraulic drill rig top hammer formula impact rotary power head |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB670538A (en) * | 1949-08-16 | 1952-04-23 | Atlas Diesel Ab | Improvements in power operated twist drills |
US3074381A (en) * | 1961-07-12 | 1963-01-22 | Joy Mfg Co | Rock drill rotation mechanism |
FR2129276A5 (en) * | 1971-03-18 | 1972-10-27 | Montabert Ets | |
GB1343857A (en) * | 1972-05-17 | 1974-01-16 | Moelven Brug As | Pressure-medium operated percussion or impact apparatus |
US3807512A (en) * | 1972-12-29 | 1974-04-30 | Texaco Inc | Percussion-rotary drilling mechanism with mud drive turbine |
JPH06108770A (en) * | 1992-08-31 | 1994-04-19 | Sig (Schweiz Ind Ges) | Drill device for rock drill |
FR2837523B1 (en) * | 2002-03-19 | 2004-05-14 | Montabert Sa | ROTO-PERCUTANT HYDRAULIC PERFORATOR HAMMER |
FR2863671B1 (en) * | 2003-12-11 | 2006-01-13 | Montabert Roger | PRESSURE REGULATING DEVICE FOR PERCUSSION HYDRAULIC DEVICE |
FR2902821B1 (en) | 2006-06-22 | 2008-08-22 | Montabert Soc Par Actions Simp | HYDRAULIC ROTOPERCUTTING DEVICE OF THE PUNCHING TYPE |
-
2010
- 2010-09-13 FR FR1057262A patent/FR2964691B1/en not_active Expired - Fee Related
- 2010-09-29 CN CN201010296161.1A patent/CN102400643B/en active Active
-
2011
- 2011-09-02 AU AU2011351026A patent/AU2011351026B2/en active Active
- 2011-09-02 KR KR1020137007160A patent/KR101721893B1/en active IP Right Grant
- 2011-09-02 ES ES11764832.9T patent/ES2573678T3/en active Active
- 2011-09-02 US US13/820,669 patent/US9194182B2/en active Active
- 2011-09-02 WO PCT/FR2011/052008 patent/WO2012089949A1/en active Application Filing
- 2011-09-02 EP EP11764832.9A patent/EP2616623B1/en active Active
- 2011-09-02 CA CA2808992A patent/CA2808992C/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012089949A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012089949A1 (en) | 2012-07-05 |
US9194182B2 (en) | 2015-11-24 |
CN102400643B (en) | 2015-11-25 |
KR101721893B1 (en) | 2017-03-31 |
FR2964691A1 (en) | 2012-03-16 |
FR2964691B1 (en) | 2012-09-28 |
ES2573678T3 (en) | 2016-06-09 |
AU2011351026A1 (en) | 2013-04-04 |
CN102400643A (en) | 2012-04-04 |
CA2808992C (en) | 2018-06-12 |
KR20140005867A (en) | 2014-01-15 |
AU2011351026B2 (en) | 2016-05-12 |
EP2616623B1 (en) | 2016-03-02 |
CA2808992A1 (en) | 2012-07-05 |
US20130168153A1 (en) | 2013-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20130304 |
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