EP3735507A1 - Ensemble de forage et procédé de forage associé - Google Patents
Ensemble de forage et procédé de forage associéInfo
- Publication number
- EP3735507A1 EP3735507A1 EP19700057.3A EP19700057A EP3735507A1 EP 3735507 A1 EP3735507 A1 EP 3735507A1 EP 19700057 A EP19700057 A EP 19700057A EP 3735507 A1 EP3735507 A1 EP 3735507A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- nozzle
- drilling
- axis
- head
- 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
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/16—Applying separate balls or pellets by the pressure of the drill, so-called shot-drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
Definitions
- the present invention relates to a drilling assembly extending along a central axis.
- the invention also relates to a drilling method.
- the invention relates to drilling in a civil engineering structure, particularly during the dismantling of nuclear power plants.
- the drilling technique is known by coring by means of a drill bit of the same diameter as the hole to be made in the structure.
- a drilling system for performing the hydrodemolition of concrete.
- the system includes a drill head configured to provide a high pressure water jet and another drill head configured to provide an abrasive jet.
- the object of the invention is then to provide a drilling assembly for simplifying its handling.
- the subject of the invention is a drilling assembly of the aforementioned type comprising:
- a drill head comprising:
- a first supply device configured to provide a non-abrasive water jet at a pressure of between 2000 bar and 4000 bar to the at least one first nozzle
- a second supply device configured to provide a jet comprising at least one abrasive material at a pressure between 2000 bar and 6000 bar to the at least one second nozzle.
- the drilling assembly comprises one or more of the following characteristics, taken separately or in any technically possible combination:
- the drill head is cylindrical in shape, and has a central head axis extending along the main axis;
- the drilling head has a diameter of between 200 mm and 1000 mm;
- the drilling assembly comprises a frame and a first drive in rotation of the drilling head with respect to the frame around the central head axis;
- the drilling assembly comprises a body, a first support of cylindrical shape having a central axis of first support different from the central axis of the head and a second drive in rotation of the first support relative to the body around the central axis; first support, the at least one second nozzle being disposed on the first support, and the first support being rotatably connected to the body about the central axis of the first support;
- the drilling assembly comprises a second support of cylindrical shape having a central axis of second support different from the central axis of first support, a third drive in rotation of the second support relative to the first support around the central axis of second support, the at least one first nozzle being disposed on the second support, and the second support being rotatably connected to the first support about the central axis of second support;
- the at least one second nozzle is configured to provide an orientable jet forming an angle between 0 ° and 45 ° with respect to an axis passing through the second nozzle and parallel to the main axis;
- the drilling assembly comprises a suction mouth of rubble, preferably formed in the body and extending along the main axis;
- the drilling head comprises a lighting device and a camera, preferably carried by the first support;
- the drilling assembly comprises a fourth drive of the drilling head in translation along the main axis with respect to the chassis;
- the drilling head has a front face substantially orthogonal to the main axis, the first nozzle and the second nozzle opening on the front face.
- the invention also relates to a method of drilling by means of a drilling assembly as described above, comprising the following steps:
- first supply by the first device for supplying a non-abrasive water jet at a pressure of between 2000 bar and 4000 bar to the at least one first nozzle; second supply by the second device for supplying a jet comprising at least one abrasive material at a pressure of between 2000 bar and 6000 bar to the at least one second nozzle; the first supply taking place before, during and / or after the second supply.
- the drilling method comprises the following steps:
- FIG. 1 is a schematic representation, partially in section, of a drilling assembly according to the invention and a section of a wall into which is introduced the drilling assembly;
- Figure 2 is a perspective view of the drill head of the drill assembly of Figure 1;
- FIG. 3 is a perspective view of the drilling head of the drilling assembly of FIG. 1 during a step of supplying a non-abrasive water jet;
- FIG. 4 is a perspective view of the drill head of the drill assembly of FIG. 1 during a step of supplying an abrasive jet;
- FIG. 5 is a perspective view of the drill head of the drill assembly of FIG. 1 during a step of supplying an abrasive jet oriented differently than in FIG. 4.
- a drilling assembly 10 is shown in FIG. 1
- the drilling assembly 10 is configured to drill a wall 12, in particular a wall 12 comprising mineral and metal elements.
- the wall 12 is made of reinforced concrete composed of concrete 14 and metal elements 16.
- the metal elements 16 are, for example, iron or steel bars.
- the drilling assembly 10 extends along a main axis A-A '.
- the drilling assembly 10 comprises a drilling head 18 comprising at least a first nozzle 20 and at least a second nozzle 22, the or each second nozzle 22 being different from the or each first nozzle 20.
- the drilling assembly 10 comprises in the example illustrated in the figures, a single first nozzle 20 and a single second nozzle 22.
- the drill head 18 is cylindrical.
- the drill head 18 has a central head axis B-B 'extending along the main axis A-A'.
- the drilling head 18 has a diameter greater than 200 mm.
- the diameter has no upper limit.
- the drill head 18 has a diameter in particular of between 200 mm and 1000 mm, for example 280 mm.
- the drilling head 18 has a front face 24, the front face 24 being configured to be disposed opposite the zone of the wall 12 to be drilled.
- the front face 24 is substantially orthogonal to the central axis of head B-B '.
- the or each first nozzle 20 is configured to provide a jet of fluid, including a water jet without abrasive.
- abrasive is meant a very hard material used to use other softer materials.
- the abrasive material has a hardness greater than 6 mohs.
- An abrasive material is also characterized by its particle size, advantageously between 30 and 80 mesh.
- the or each second nozzle 22 is configured to provide a jet of fluid, in particular a jet comprising at least one abrasive material.
- the abrasive material is, for example, composed of garnet or amandine.
- the fluid is water in which the abrasive material is added.
- the drilling assembly 10 further comprises a first delivery device 26 and a second delivery device 28.
- the first delivery device 26 is configured to provide the non-abrasive waterjet to the at least one first nozzle 20.
- the first delivery device 26 is configured to provide the water jet at very high pressure to allow the drilling by demolition by bursting of the concrete 14.
- the very high pressure of the water jet is between 2000 bar and 3000 bar.
- the associated flow rate of the water jet is between 10 l.min 1 and 20 l.min 1 .
- the drilling assembly 10 advantageously comprises at least a third nozzle, not shown in the figures.
- the first delivery device 26 is further configured to provide a low-pressure, non-abrasive water jet to the at least one third nozzle to allow removal of the debris from the area of the wall 12 to be drilled.
- the low pressure of the water jet is between 2 bar and 10 bar.
- the associated flow rate of the water jet is then between 20 l.min 1 and 100 l.min 1 .
- the first supply device 26 advantageously comprises a reservoir comprising water, a pump and a conduit from the reservoir to the or each first nozzle 20, not shown.
- the second delivery device 28 is configured to provide the jet comprising at least one abrasive material to the at least one second nozzle 22.
- the pressure of the abrasive jet is between 2000 and 3000 bar.
- the associated flow rate of the abrasive jet is then between 200 and 500 g. min 1
- the second supply device 28 advantageously comprises a reservoir comprising an abrasive material, a pump and a conduit of the reservoir to the or each second nozzle 22, not shown.
- the drilling assembly 10 further comprises a frame 30 and a first drive 32.
- the frame 30 is a support located away from the wall 12.
- the frame 30 is fixed relative to the wall 12.
- the first drive 32 is configured to rotate the drill head 18 relative to the frame 30 about the central head axis B-B '.
- the amplitude of the rotation permitted by the first drive 26 is 360 °.
- the first drive 32 is of any type appropriate to allow said rotation.
- the first drive 32 is a geared motor.
- the drilling assembly 10 also comprises a body 34, a first support 36 and a second drive 38.
- the body 34 is of cylindrical shape, having the head axis B-B 'as a central axis and of the same diameter as the drilling head 18.
- the front face of the body 34 is parallel and substantially at the same level as the front face 24 of the drill head 18.
- the first support 36 is of cylindrical shape, having a central axis of first support C-C 'different from the central axis of head B-B'.
- the central axis of first support C-C ' is for example substantially parallel to the central axis of head B-B'.
- the central axis of first support C-C ' forms a non-zero angle, in particular between 0 ° and 45 ° with the central head axis B-B'.
- the or each second nozzle 22 is configured to provide an orientable jet forming an angle between 0 ° and 80 ° with respect to an axis F-F 'passing through said second nozzle 22 and parallel to the first support axis C-C '.
- the first support 36 is inserted into the body 34.
- the first support 36 is rotatably connected to the body 34 about the central axis of the first support C-C '.
- the first support 36 opens onto the front face 24.
- the front face of the first support 36 is for example parallel and substantially at the same level as the front face 24 of the drill head 18.
- the or each second nozzle 22 is disposed on the first support 36 and, in particular, on the front face of the first support 36.
- the second drive 38 is configured to rotate the first support 36 relative to the body 34 about the central axis of the first support C-C '.
- the amplitude of the rotation permitted by the second drive 28 is 180 °.
- the second drive 38 is of any type suitable to allow said rotation.
- the second drive 38 is a geared motor.
- the nozzles 20, 22 are able to follow any desired path on the front face 24.
- the drilling assembly 10 further comprises a second support 40 and a third drive 42.
- the second support 40 is of cylindrical shape, having a central axis of second support D-D 'different from the central axis of first support C-C'.
- the central axis of second support D-D ' is advantageously substantially parallel to the central axis of first support C-C'.
- the central axis of second support D-D ' forms a non-zero angle with the axis of first support C-C'.
- the or each first nozzle 20 is configured to provide a jet making an angle between 0 ° and 45 ° with respect to an axis E-E 'passing through said first nozzle 20 and parallel to the axis central second support D-D '.
- the second support 40 is inserted into the first support 36.
- the second support 40 is rotatably connected to the first support 36 about the central axis of second support D-D '.
- the second support 40 opens on the front face 24.
- the front face of the second support 40 is parallel and substantially at the same level as the front face 24 of the drill head 18.
- the or each first nozzle 20 is advantageously arranged on the second support 40.
- the or each first nozzle 20 is located on the front face of the second support 40.
- the third drive 42 is configured to rotate the second support 40 relative to the first support 36 about the second support center axis D-D '.
- the amplitude of the rotation permitted by the third drive 42 is 360 °.
- the third training 42 is configured to allow a continuous rotation of the second support 40, in particular at a rotational speed of between 100 and 600 revolutions. min 1 , for example 500 rounds. min 1
- the third drive 42 is of any type suitable to allow said rotation.
- the third drive 42 is a geared motor.
- the third drive 42 is configured to allow rotation of the second support 40 by means of the flow of water flowing through the or each first nozzle 20.
- the drilling assembly 10 comprises a suction mouth 44.
- the suction mouth 44 is formed in the body 34 and the opening of the suction mouth 44 opens on the front face 24.
- the suction mouth 44 extends along the central axis of head B- B '.
- the suction mouth 44 is configured to suck through the opening of the rubble resulting from the drilling of the wall 12 as well as the fluids injected by the nozzles 20, 22 and to transport the rubble and the fluids from the front face 24 to the outside the wall 12.
- the suction mouth 44 is advantageously connected to a pump, not shown, configured to create a vacuum causing suction and transport of rubbish and fluids.
- the drilling assembly 10 advantageously comprises a lighting device 46 and a camera 48.
- the lighting device 46 is carried by the first support 36, in particular on the front face of the first support 36.
- the lighting device 46 is configured to illuminate the zone of the wall 12 to be drilled.
- the lighting device 46 is advantageously composed of a plurality of lamps arranged regularly along a circle around the camera 48.
- the camera 48 is carried by the first support 36, in particular on the front face of the first support 36.
- the camera 48 is configured to record and transmit to a screen, not shown and located outside the wall 12, photographs or videos of the area of the wall 12 to be drilled.
- the camera 48 is configured to instantly transmit the images taken on the screen to allow better control of the drilling.
- the lighting device 46 and the camera 48 are configured to switch from a masked configuration in which the lighting device 46 and the camera 48 are protected during drilling, to an active configuration in which the lighting device 46 and the camera 48 are able to illuminate and film the zone of the wall 12 to be drilled.
- the drilling assembly 10 comprises at least a fourth nozzle, not shown in the figures, configured to provide a jet of compressed air on the lighting device 46 and the camera 48 in order to clean them and / or protect drips during the viewing steps after the piercing steps.
- the drilling assembly 10 also comprises a fourth drive 50.
- the fourth drive 50 is configured to drive the drilling head 18 in translation along the central head axis B-B 'with respect to the frame 30 and thus makes it possible to advance the drilling of the wall 12 as and when that the reinforced concrete is pierced.
- the fourth drive 50 is of any type appropriate to allow said translation.
- the fourth drive 50 is a screw-nut system or a rack.
- the drilling assembly 10 is away from the wall 12.
- the front face 24 of the drilling head 18 is placed facing the wall 12 by means of the fourth drive 50 which moves the drilling head 18 in translation along the central axis of the head B-B 'with respect to the frame 30.
- the first drive 32 and the second drive 38 place the drill head 18 and the first support 36 in the desired position facing the zone of the wall 12 to be drilled.
- the drilling method then comprises a step of first supply by the first delivery device 26 of a jet of water without abrasive at very high pressure to the or each first nozzle 20.
- the concrete body 14 is then demolished by the jet of water without abrasive at very high pressure, as can be seen in FIG. 3.
- a thickness of concrete 14 between 40 mm and 60 mm is demolished during the first supply stage.
- the third drive 42 rotates the or each first nozzle 20 around the central axis of second support D-D 'relative to the first support 36.
- the water jet without abrasive then describes a cone around the central axis of second support D-D ', as shown in FIG. 3, thus facilitating demolition of a thickness of concrete 14.
- the or each first nozzle 20 describes the desired path and allows to remove a layer of the concrete wall 12 according to the diameter of the borehole.
- the fourth drive 50 drives the drill head 18 in stepwise translation as the concrete zone 14 of the wall 12 is demolished.
- the lighting device 46 and the camera 48 move from the masked configuration to the active configuration. .
- the illumination device 46 illuminates the zone to be drilled and the camera 48 films and transmits the images of the zone of the wall 12 to be drilled so as to control the drilling and to identify the metal elements 16 that may have been unhooked, in particular the steel rods. or iron.
- the first supply step of the non-abrasive water jet at very high pressure stops.
- the first delivery device 26 supplies a low-pressure, non-abrasive water jet to the or each third nozzle in order to remove the rubbles present opposite the front face 24.
- the suction mouth 44 sucks water injected by the jet and rubble and transports it outside the wall 12.
- the lighting device 46 and the camera 48 make it possible to locate the position and the shape of the metal element 16.
- the first drive 32 and the second drive 38 place the drill head 18 and the first support 36 in the desired position facing the metal element 16 to be destroyed.
- the drilling method then comprises a step of second supply by the second delivery device 28 of a jet comprising at least one abrasive material to the or each second nozzle 22.
- the metal element 16 is then cut by the abrasive jet, as can be seen in FIGS. 4 and 5.
- the or each second nozzle 22 orients the abrasive jet according to the shape and orientation of the metal element 16.
- each second nozzle 22 makes it possible to cut a metal element 16 oriented substantially in the same direction as the front face 24, as can be seen in FIG. 4.
- the or each second nozzle 22 also makes it possible to cut a metal element 16 oriented substantially along the central axis of the head B-B ', as can be seen in FIG. 5, with a different orientation of the abrasive jet.
- the or each second nozzle 22 describes the desired path and allows the metal element 16 to be accurately destroyed.
- the first delivery device 26 provides a low-pressure, non-abrasive water jet to the or each third nozzle in order to remove the rubbles present opposite the front face 24.
- the mouth suction 44 draws the water injected by the jet and the pieces of iron and transports them outside the wall 12.
- the suction is performed during the demolition steps of the wall 12, in order to remove the concrete rubble 14 and the metal elements 16 cut continuously.
- first supply and second supply are used as mere terminology but do not imply any temporal correlation relationship between the steps of the drilling process.
- the first supply can be made before, during or after the second supply.
- the drilling method subsequently alternately comprises first-supply steps to demolish the concrete zones 14 of the wall 12 and second supply steps to destroy the metal elements 16 present in the wall 12.
- the drilling method therefore allows drilling in a wall 12 of reinforced concrete that does not require the alternating insertion of several drill heads and thus allowing the drilling assembly 10 to be moved more easily.
- the lack of round-trip is favorable to reducing the dispersion of rubble and effluent, which is a sensitive point when working in contaminated environment.
- the different drives 32, 38, 42, 50 and the orientation of the jets at the outlet of the nozzles 20, 22 make it possible to split the various elements 14 of the wall 12 into residual rubble sufficiently small to be extracted and transported by the suction port 44 by means of the flow of water injected by the or each third nozzle.
- the hydrodemolition allowed by the or each first nozzle 20 and the first delivery device 26 allows fractionating the concrete 14 into pieces whose size is given by the mineral elements, such as pebbles, used in the composition of the concrete 14
- the precise cutting of the metal elements 16 by means of the controlled trajectory of the or each second nozzle 22 makes it possible to split the metal elements 16, such as steel or iron bars, into small sections easily transportable by the suction mouth. 44.
- the drilling assembly 10 also makes it possible to perform inclined drilling without damaging the equipment located near the wall 12.
- Inclined drilling means a drilling implemented in a direction forming a non-zero angle with the axis normal to the exit face, in particular an angle greater than 20 ° as visible in FIG. 1.
- the inclined bore is especially advantageously made in a direction from top to bottom.
- the metal elements 16 are usually found in a civil engineering structure at least 50 mm inside the wall 12.
- the alternating use of the nozzles 20, 22 and the abrasive cuts can be made in a targeted manner on the metal sections, the end of the drilling can lead out of the wall 12 without using abrasive cutting jet.
- the only use of the non-abrasive jet makes it possible not to cut any metal elements beyond the borehole and in particular to drill a possible metal wall to be preserved.
- the alternating use of the two supply devices 22, 24 optimizes the amount of abrasive used which allows a reduction in costs and the ecological impact of drilling.
- the drilling assembly 10 makes it possible to reduce the reaction forces of the jets, typically less than 10 daN, which alleviates the structure and the necessary weight of the drilling assembly 10, as opposed to drilling performed with a drill.
- jackhammer for example which leads to cracks in the structure.
- the drilling assembly 10 is in particular advantageously used for dismantling damaged nuclear power plants, such as the Fukushima power station.
- the drilling assembly 10 is also used to make openings in civil engineering structures when it is important to preserve the reinforcement at the edge of the opening so as to then reweld the structure according to a new need.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1850103A FR3076568B1 (fr) | 2018-01-05 | 2018-01-05 | Ensemble de forage et procede de forage associe |
| PCT/EP2019/050139 WO2019134956A1 (fr) | 2018-01-05 | 2019-01-04 | Ensemble de forage et procédé de forage associé |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3735507A1 true EP3735507A1 (fr) | 2020-11-11 |
| EP3735507B1 EP3735507B1 (fr) | 2024-02-14 |
Family
ID=62167454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19700057.3A Active EP3735507B1 (fr) | 2018-01-05 | 2019-01-04 | Ensemble de forage et procédé de forage associé |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11384602B2 (fr) |
| EP (1) | EP3735507B1 (fr) |
| JP (1) | JP7266606B2 (fr) |
| ES (1) | ES2977186T3 (fr) |
| FR (1) | FR3076568B1 (fr) |
| WO (1) | WO2019134956A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183037B (zh) * | 2021-04-02 | 2022-09-02 | 山东大学 | 一种磨料水射流全断面切割式刀盘及应用装置 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2698736A (en) * | 1952-01-29 | 1955-01-04 | Standard Oil Dev Co | Combination pellet impact drill and annulus cutting drill |
| US2868509A (en) * | 1956-06-07 | 1959-01-13 | Jersey Prod Res Co | Pellet impact drilling apparatus |
| US3897836A (en) * | 1973-10-18 | 1975-08-05 | Exotech | Apparatus for boring through earth formations |
| JPS5645334A (en) * | 1979-09-22 | 1981-04-25 | Tsukahara Koichi | Processing device with extra-high pressure water |
| JPS6121271A (ja) * | 1984-07-11 | 1986-01-29 | 石川島播磨重工業株式会社 | コンクリ−ト構造物の破壊方法 |
| US4708214A (en) * | 1985-02-06 | 1987-11-24 | The United States Of America As Represented By The Secretary Of The Interior | Rotatable end deflector for abrasive water jet drill |
| BE905265A (nl) * | 1986-08-13 | 1986-12-01 | Smet Nik | Werkwijze en inrichting voor het maken van een gat in de grond. |
| BE1004617A3 (nl) * | 1990-10-15 | 1992-12-22 | Smet Marc Jozef Maria | Boorkop. |
| JPH054199A (ja) * | 1991-06-25 | 1993-01-14 | Kiyoyuki Horii | 切削・切断方法とその装置 |
| JPH09256767A (ja) * | 1996-03-19 | 1997-09-30 | Mitsui Eng & Shipbuild Co Ltd | 高圧水噴射式削孔方法及びその装置 |
| US8864240B2 (en) | 2010-09-20 | 2014-10-21 | Ash Equipment Company, Inc. | Vertical or horizontal robot for hydrodemolition of concrete |
| JP2014015731A (ja) | 2012-07-06 | 2014-01-30 | Tokyo Metro Co Ltd | 高圧水削孔ノズルヘッド |
| CN109076282A (zh) | 2016-07-14 | 2018-12-21 | 索尼公司 | 扬声器设备 |
| DE102016125916A1 (de) * | 2016-12-30 | 2018-07-05 | Hochschule Bochum | Bohrvorrichtung |
-
2018
- 2018-01-05 FR FR1850103A patent/FR3076568B1/fr not_active Expired - Fee Related
-
2019
- 2019-01-04 US US16/960,038 patent/US11384602B2/en active Active
- 2019-01-04 WO PCT/EP2019/050139 patent/WO2019134956A1/fr not_active Ceased
- 2019-01-04 ES ES19700057T patent/ES2977186T3/es active Active
- 2019-01-04 EP EP19700057.3A patent/EP3735507B1/fr active Active
- 2019-01-04 JP JP2020537179A patent/JP7266606B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021510187A (ja) | 2021-04-15 |
| US11384602B2 (en) | 2022-07-12 |
| ES2977186T3 (es) | 2024-08-20 |
| WO2019134956A1 (fr) | 2019-07-11 |
| US20200347679A1 (en) | 2020-11-05 |
| FR3076568A1 (fr) | 2019-07-12 |
| JP7266606B2 (ja) | 2023-04-28 |
| FR3076568B1 (fr) | 2020-11-27 |
| EP3735507B1 (fr) | 2024-02-14 |
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