EP3751092B1 - Guide adapter - Google Patents

Guide adapter Download PDF

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Publication number
EP3751092B1
EP3751092B1 EP19180284.2A EP19180284A EP3751092B1 EP 3751092 B1 EP3751092 B1 EP 3751092B1 EP 19180284 A EP19180284 A EP 19180284A EP 3751092 B1 EP3751092 B1 EP 3751092B1
Authority
EP
European Patent Office
Prior art keywords
guide
axis
adapter
guide adapter
elements
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.)
Active
Application number
EP19180284.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3751092A1 (en
Inventor
Fredrik BJÖRK
Andreas Norman
Ali YASSERI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandvik Mining and Construction Tools AB
Original Assignee
Sandvik Mining and Construction Tools AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to PL19180284.2T priority Critical patent/PL3751092T3/pl
Application filed by Sandvik Mining and Construction Tools AB filed Critical Sandvik Mining and Construction Tools AB
Priority to EP19180284.2A priority patent/EP3751092B1/en
Priority to PE2021001780A priority patent/PE20212337A1/es
Priority to KR1020217039971A priority patent/KR20220017408A/ko
Priority to CA3136576A priority patent/CA3136576A1/en
Priority to PCT/EP2020/066081 priority patent/WO2020249611A1/en
Priority to CN202080043114.8A priority patent/CN113966431A/zh
Priority to JP2021573859A priority patent/JP2022537522A/ja
Priority to EP20732202.5A priority patent/EP3983636A1/en
Priority to MX2021015490A priority patent/MX2021015490A/es
Priority to BR112021024847A priority patent/BR112021024847A2/pt
Priority to AU2020290668A priority patent/AU2020290668A1/en
Priority to US17/618,795 priority patent/US20220259929A1/en
Publication of EP3751092A1 publication Critical patent/EP3751092A1/en
Priority to CL2021003258A priority patent/CL2021003258A1/es
Application granted granted Critical
Publication of EP3751092B1 publication Critical patent/EP3751092B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
    • 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
    • E21B10/36—Percussion drill bits
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded

Definitions

  • the present invention generally relates to a guide adapter for guiding a drill bit during percusion drilling, and a drill arrangement comprising said guide adapter.
  • top hammer drilling is an established method for drilling vertical bore holes with a drill bit arranged in the forward end of an elongated drill string or cable.
  • a hammering impact from a hydraulically driven piston is acting on the drill string to exert the required force to break the rock and generate the bore hole.
  • the length of the drill string is, during the drilling, increased by adding further drill string rods as the depth of the bore hole increases.
  • the problem with deviation could be reduced by adding a guide adapter between the drill bit and the drill string or cable to provide additional support to the forward end of the drill string and the drill bit.
  • a guide adapter is disclosed in US8051927B2 .
  • US5722496 discloses a removable guide member for guiding drill string components in a drill hole.
  • the guide adapter for guiding a drill bit during percusion drilling, said guide adapter is intended to be arranged between the drill bit and an elongated drill string extending along an axis A, said drill bit having a first radius transverse to axis A.
  • the guide adapter comprises:
  • the guide adapter is favorable since the guide elements with the claimed characteristics arranged in the rear end of the guide adapter will provide the desired guiding of the drill bit, and at the same time reduce the weight of the guide adapter which is a considerable advantage to improve the drilling performance.
  • the characteristic design of the guide elements furthermore reduces the friction between the guide elements and the bore hole since only the rear end of the guide elements will be in contact with the side wall of the bore hole which improves the drilling performace further.
  • the guiding elements in the rear end of the guide adapter preferably have an extension in radial direction from axis A substantially equal to the maximum radius, i.e. the first radius of the drill bit such that the guiding elements of the guide adapter will provide support against the side walls of the bore hole and reduce deviation from the desired straight bore hole direction.
  • the guide adapter comprises at least five guide elements with substantially identical shape and dimension. This embodiment is favourable since the five or more guiding elements will provide very good guiding of the drill bit and prevent deviation.
  • the guide elements are substantially straight and extending parallel to axis A along the sleeve shaped adapter body. This embodiment could be manufactured in an effective way since the guiding elements are straight and parallell to axis A.
  • the guide elements in a plane transverse to axis A, have a base arranged towards the sleeve shaped adapter body, said guide elements have a tapered shape in radial direction from axis A and are ended by an outer end surface. Guiding elements with this design provide excellent support within the bore hole and are very resistant to loads exerted during drilling since the wider base provides a strong bounding to the guide adapter body while the tapered shape reduces the amount of material, and consequently the weight, of the guide adapter which improves the performance of the arrangement.
  • the outer end surface is shaped like a cirular arc with a radius corresponding to the radius from axis A to the outer end surface.
  • the curved outer end surface provides excellent support against the side walls of the bore hole and are very resistant to wear.
  • At least an area of the outer end surface of at least one guiding element is covered by a hard layer.
  • the guide adapter body and the guide elements are made of a metal material and the applied hard layer of a material that is harder and more resistant to wear increases the life time for the guide adapter.
  • the hard layer is applied on the outer end surfaces along the entire guide elements along axis A to increase the life time of the guide adapter by providing the hard layer on the entire surface of the guide element facing the bore hole side wall.
  • the hard layer is a layer made of a material that is harder and more resistant to wear than the metal material of the guide adapter body.
  • the material is a material including an iron-based alloy, a cobalt-based alloy, a nickel-based alloy, a refractory metal, a cemented carbide, a metal matrix composite and/or a chromium carbide alloy. These different alternative materials provide a protective layer that can withstand wear and increase the intervals between replacement of the guide adapter.
  • the hard layer has a thickness in a direction perpendicular from the outer end surface within the range of 0.1 - 10 mm, and preferably within the range of 0.1 - 4 mm to provide the desired protection of the guiding elements of the guide adapter.
  • the guide elements comprise a rear end surface and the rear end surface of at least one guide element is covered by a rear end surface hard layer.
  • the rear end surfaces are exposed to wear since the material removed from the rock to form the bore hole remains within the bore hole and due to gravitation tend to land on the rear end surfaces of the guiding elements.
  • the application of the rear end surface hard layer exends the life time of the guide adapter since the rear end of the guide elements are protected by the rear end surface hard layer.
  • the rear end surface hard layer has a thickness in a direction perpendicular from the rear end surface within the range of 0.1 - 10 mm, and preferably within the range of 0.1 - 4 mm and is made of the same type of materials as the hard layer arranged on the outer end surface on the guiding element.
  • the guiding elements in the rear end has an extension in radial direction from axis A of about 94 - 96 % of said first radius, and a radial extension the forward of the guiding elements of about 89 - 91 % of said first radius. Guiding elements with this design provides excellent guiding of the drill bit and the desired drilling performance.
  • a wear indicator is arranged in the outer end surface of at least one of the guide elements to indicate when the guide adapter is worn out and needs to be replaced. This embodiment helps the operator to replace the guide adapter in time to ensure the desired guiding of the drill bit.
  • the wear indicator is a notch, recess or cut out portion arranged in the top end surface, said notch, recess or cut out portion has a depth selected such that when the guide adapter is worn out, the notch is no longer visible in the top end surface.
  • the distance from axis A to the wear indicator is within the range of 80 - 99 % of the guiding element extension in radial direction from axis A in the rear end of the guide adapter, and preferably within the range of 85 - 95 % of the guiding element extension in radial direction from axis A in the rear end of the guide adapter. These ranges are selected to ensure that the guide adapter is preplaced in time to ensure the desired guiding of the drill bit.
  • the guide elements extend along 50% or less of the adapter body length L along axis A, alternatively 40% or less of the adapter body length L along axis A. These lengths are selected to ensure the desired guiding of the drill bit in combination with excellent drilling performance.
  • the radial extension of the guiding elements are decreasing in the direction from the rear end towards the forward end such that the guide elements will have a convex shape along axis A, or a substantially straight shape angled in relation to axis A along axis A.
  • the invention furthermore relates to a drill arrangement for percussion drilling, said arrangement comprises a drill string, a drill bit having a first radius transverse to axis A and a guide adapter according to claim 1 arranged between the drill string and the drill bit to reduce the risk for deviation.
  • FIG 1 a perspective view of a drill arrangement is illustrated.
  • the drill arrangement comprises a drill string rod 10, a guide adapter according to the invention 100 and a drill bit 20.
  • the drill string rod 10 comprises an elongated intermediate section 11 extending along a longitudinal axis A (shown in figure 3 ).
  • a male coupling 12 is arranged in one end of the intermediate section and a female coupling 13 in the opposite end.
  • the male and female couplings are intended to make it possible to connect the guide adapter and drill bit in the forward end of the drill string rod, and the female coupling in the rear end of the drill string rod is intended for connecting further drill string rods to form a drill string 100 with the desired length by connecting the male coupling of an identical drill string rod to the female coupling of the adjacent drill string rod.
  • further drill string rods 10 are connected to extend the length of drill string 100 as the depth of the bore hole increases.
  • male / female couplings are illustrated but other coupling arrangements could be used to adapt the arrangement for different needs.
  • the rear end of the drill string 10 is connected to a hydraulically driven piston, not illustrated, arranged to provide the desired axial force and rotation of the drills string, the guide adapter and the drill bit to conduct the percussion drilling.
  • a hydraulically driven piston not illustrated, arranged to provide the desired axial force and rotation of the drills string, the guide adapter and the drill bit to conduct the percussion drilling.
  • the design of the drill string rod, the guide adapter and the drill bit are adapted to specific needs origin from different types of rock materials and the desired bore hole diameter. Larger bore hole diameters require larger dimensions of the different components to ensure that they are able to withstand the loads during drilling.
  • the drill string rod could be embodied in different ways and for example the intermediate section 10 could have a circular, rectangular, pentagonal or hexagonal cross-sectional shape as long as the required strength is ensured.
  • the intermediate section is either solid, or comprising a passage extending in the center of the intermediate section through the drill string rod to allow a of flushing media through the drill string to the drill bit arranged in the forward end of the drill string to remove particles and gravel from the rock during drilling.
  • the flushing media is for example air, water or a mixture of air and water.
  • FIG. 2 illustrates an exploded view along axis A where the forward end of the drill string rod 10, the guide adapter 100 and the drill bit 20 are illustrated separately from each other to more clearly illustrate the design of the different components.
  • the male coupling 12, arranged in the forward end of the intermediate section 11, comprises a male spigot portion 14 extending co-axially to the intermediate section along axis A.
  • the male spigot portion 14 has substantially the same radius as the intermediate section 11, but dimensions could be changed to adapt the spigot portion 14 and intermediate section to different needs.
  • the male spigot portion 14 comprises an external thread 15 extending along the entire length of the spigot portion along axis A.
  • a female coupling 13 is permanently fitted to the intermediate section 11.
  • the female coupling 13, illustrated in figure 1 has a shape and dimension corresponding to the dimensions of the male coupling 12, i.e the male spigot portion 14 to make it possible to connect identical drill string rods 10 to each other to form a drill string.
  • the female coupling 13 comprises a sleeve shaped element 16 extending co-axially to the intermediate section.
  • the sleeve shaped element 16 has internal threads 17 corresponding to the external threads 15 on the male spigot portion 14.
  • the guide adapter 100 is attached to the forward end of the drill string rod to provide additional guiding of the drill bit 20 during drilling and reduce deviation from the desired straight bore hole direction.
  • Different embodiments of the guide adapter according to the invention will be described in detail further down the detailed description.
  • the different embodiments of the guide adapter all comprises a sleeve shaped adapter body 101 intended to extend co-axially to axis A.
  • the adapter body has a forward end 102 with a first coupling 104 intended for connecting the guide adapter 100 to the drill bit 20, and a rear end 103 with a second coupling 105 intended for connecting the guide adapter 100 to the drill string 10.
  • the drill bit 20 is fitted to the forward end 102 of the guide adapter 100 by the first coupling element 104.
  • the first coupling 104 of the guide adapter 100 is a male coupling and in the rear end 28 of the drill bit 20 a corresponding female coupling 22 is arranged within the drill bit body 21.
  • the drill bit body 21 extend co-axially to axis A. The length of the drill bit body 21 along axis A depends on the size and intended use of the drill bit.
  • the front surface 23 of the drill bit is either substantially flat, or convex. In the front surface 23 several buttons 24 are arranged. The buttons are made of a harder and more resistant material and are intended to form the desired bore hole during drilling.
  • buttons are positioned such that the buttons along the periphery of the front surface define the maximum radius of the drill bit, i.e. the first radius, and consequently the radius of the bore hole of the drill bit will form when the drilling is initiated.
  • the buttons There are different well-known suitable materials for the buttons as well as a number of different layouts and designs of the front surface and button known in the art.
  • Behind the front surface 24 of the drill bit the drill bit body has a narrower section 30 with substantially circular cross-sectional shape with a smaller radial extension from axis A than the first radius.
  • Behind the narrower section the drill bit body comprises a rear section 29. Along the rear section 29 a number of guiding ribs 31 extend in a substantially radial direction from the drill bit body.
  • the guiding ribs 31 extend substantially parallel to axis A along the rear section of the drill bit body and has a radial extension slightly smaller than the first radius, i.e. the maximum radius of the drill bit.
  • the guiding ribs are intended to provide support for the drill bit against the side walls of the bore hole to reduce deviation from the desired straight bore direction.
  • the first coupling 104 is a male coupling element 110 and the second coupling 105 a female coupling element 111 corresponding to the male coupling 12 in the forward end of the drill string rod 10.
  • the sleeve shaped adapter body 101 has a legth L along axis A, and the sleeve shaped adapteter body has a slightly smaller outer radius along the forward half than the outer radius of the rear half.
  • the design of the adapter body could however be modified in several different ways to adapt the guide adapter to different needs.
  • the male coupling element 110 comprises a male spigot portion 112 extending co-axially to axis A from the forward end 102 of the adapter body 101.
  • the male spigot portion 112 has a smaller radius than the forward end 102 of the adapter body 101.
  • the male spigot portion 112 comprises an external thread 113 extending along the entire length of the spigot portion along axis A.
  • the spigot portion is ended by a contact surface 114 transverse to axis A.
  • the contact surface is intended to bear against a corresponding surface in the drill bit such that axial loads are transferred from the drill bit to the guide adapter via the contact surface 112.
  • the adapter body length L is defined as the total length of the guide adapter, i.e. the adapter body including the spigot portion of the male coupling.
  • the female coupling 111 is arranged within the rear part of the adapter body 101.
  • the female coupling 111 is embodied as a recess 113 with a circular cross-sectional shape transverse to axis A extending coaxially to axis A within the adapter body from the rear end of the guide adapter 100.
  • the radius of the recess corresponds to the radius of the male coupling 12, i.e the male spigot portion 14 of the drill string rod to make it possible to connect the forward end of the drill string rod 10 to the guide adapter.
  • the female coupling has internal threads 114 corresponding to the external threads 15 on the male spigot portion 14.
  • the guide adapter comprises guiding elements 106 extending along the rear part of the adapter body.
  • the design of the guide elements is illustrated in figure 3, 4 and 5 .
  • the guide elements In a plane transverse to axis A, the guide elements have a base 115 illustrated in figure 3 , arranged towards the sleeve shaped adapter body 101 and a first 116 and second 117 side surface extending from the adapter body.
  • the guide elements have a tapered shape in radial direction from axis A and are ended by an outer end surface 107 extending between the first and second side surface.
  • the outer end surface 107 is shaped like a cirular arc with a radius corresponding to the radius from axis A to the outer end surface.
  • the design of the first and second side surface and the outer end surface could however be modified in many different ways.
  • the guide elements have substantially identical shape and dimension and are arranged side by side at constant distance from each other around the periphery of the adapter body.
  • the guide elements extend along the rear end 103 of the adapter body substantially parallel to axis A.
  • the guiding elements 106 in the rear end of the guide adapter have an extension in radial direction from axis A corresponding to the maximum radius Rf of the drill bit and curved, straight or stepwise reduced radial extension towards the forward end along axis A which is illustrated in the appended figures.
  • the dimensions of the drill bit and the guide adapter correspond to each other and in figure 6 the radial extensions of the drill bit and a corresponding guide adapter are illustrated.
  • the drill bit could be embodied in many different ways but the essential feature of the drill bit is the maximum radius, i.e. the first radius Rf, of the drill bit that will determine the dimension of the formed bore hole once the drilling is initiated.
  • the guide adapter according to the invention intended for use in combination with the described drill bit preferably has guiding elements 106 with an extension in radial direction Rr from axis A in the rear end of about 94 - 96 % of said first radius Rf, i.e. the maximum radius of the drill bit intended to be used in combination with the guide adapter.
  • the radial extension Rm of the guide elements in the forward end of the guiding elements is about 89 - 91 % of said first radius Rf, i.e. the maximum radius of the drill bit intended to be used in combination with the guide adapter.
  • the radial extension of the guiding elements 106 in figure 6 are decreasing in the direction from the rear end towards the forward end such that the guide elements will have a convex shape along axis A.
  • the decresing radial extension of the guiding element also results in that the outer end surface will be slightly wider transveres to axis A due to the tapered shape of the guiding elements.
  • the guiding element radial extension is decreasing along a substantially straight shape angled in relation to axis A along axis A.
  • a transition section 124 is formed adjacent to the forward end of the guide elements to form a smooth transition between the forward end of the guide elements 106 and the sleeve shaped adapter body 101.
  • Each guiding element furthermore comprises a rear end surface 109.
  • the rear surfaces have an undulating shape instead of a flat surface transverse to axis A to facilitate the transport of particles or gravel from the bore hole.
  • the end surface could be modified in several ways to adapt the guide element for different conditions.
  • the guide adapter is made of a metal material and either an limited area of the outer end surface or the entire outer end surface of one or more guiding elements are covered with the hard layer that is more resistant to wear. Preferably, all outer end surfaces are covered by the hard layer 108 to ensure that all guiding elements have similar characeristics.
  • rear end surface 109 of one or more of the guide elements could be covered by a rear end surface hard layer 122.
  • the hard layers 108 and 122 are made of a material that is harder and more resistant to wear than the metal material of the guide adapter to make it possible for the exposed surfaces of the guide adapter to withstand the wear for an extended period of time.
  • the applied hard layer on the outer end surface 107 and the rear end surface 109 has a thickness in a direction perpendicular to the covered surface within the range of 0.1 - 10 mm.
  • the hard layer thickness is either constant over the entire covered area or adapted such that a thicker layer is applied where the risk for wear is higher.
  • the layer of material that is harder and more resistant to wear could be different types of materials.
  • materials are material including an iron-based alloy, a cobalt-based alloy, a nickel-based alloy, a refractory metal, a cemented carbide, a metal matrix composite and/or a chromium carbide alloy with the desired characteristics. Further materials are possible as well.
  • Hardfacing is a metal working process where harder or tougher material is applied to a base metal. The material is often welded to the base material to ensure that the applied material is adhered to the base material.
  • An alternative method involves the use of powder metal alloys that are welded to the surface of the product that need the protective layer.
  • the guide adapter 100 furthermore comprises a wear indicator 120 arranged in the outer end surface 107 of at least one of the guide elements 106 to indicate when the guide adapter is worn out and needs to be replaced.
  • the wear indicator is a notch 120, recess or cut out portion arranged in the top end surface 107 somewhere along the top end surface where it is easy for the operator to inspect.
  • the notch 120, recess or cut out portion is arranged close to the forward end of the guiding elements 106 where the radial extension of the guiding elements is smaller and the loads on the guide elements from the bore hole is smaller than in the rear end of the guide adapter to prevent that the strength of the guiding elements is affected.
  • the notch, recess or cut out portion has a depth selected such that when the guide adapter 100 is worn out, the notch is no more visible in the top end surface 107.
  • the depth of the wear indicator is selected such that the bottom of the wear indicator has a radial extension Rw within the range of 80 - 99 % of the guiding element extension in radial direction Rr from axis A in the rear end of the guide adapter. In a preferred embodiment of the war indicator the depth is within the range of 85 - 95 % of the guiding element extension Rr in radial direction from axis A in the rear end of the guide adapter.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP19180284.2A 2019-06-14 2019-06-14 Guide adapter Active EP3751092B1 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
EP19180284.2A EP3751092B1 (en) 2019-06-14 2019-06-14 Guide adapter
PL19180284.2T PL3751092T3 (pl) 2019-06-14 2019-06-14 Łącznik prowadzący
AU2020290668A AU2020290668A1 (en) 2019-06-14 2020-06-10 Guide adapter
CA3136576A CA3136576A1 (en) 2019-06-14 2020-06-10 Guide adapter
PCT/EP2020/066081 WO2020249611A1 (en) 2019-06-14 2020-06-10 Guide adapter
CN202080043114.8A CN113966431A (zh) 2019-06-14 2020-06-10 导向适配器
JP2021573859A JP2022537522A (ja) 2019-06-14 2020-06-10 ガイドアダプタ
EP20732202.5A EP3983636A1 (en) 2019-06-14 2020-06-10 Guide adapter
PE2021001780A PE20212337A1 (es) 2019-06-14 2020-06-10 Adaptador guia
BR112021024847A BR112021024847A2 (pt) 2019-06-14 2020-06-10 Adaptador de guia
KR1020217039971A KR20220017408A (ko) 2019-06-14 2020-06-10 가이드 어댑터
US17/618,795 US20220259929A1 (en) 2019-06-14 2020-06-10 Guide adapter
MX2021015490A MX2021015490A (es) 2019-06-14 2020-06-10 Adaptador guia.
CL2021003258A CL2021003258A1 (es) 2019-06-14 2021-12-07 Adaptador guía.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19180284.2A EP3751092B1 (en) 2019-06-14 2019-06-14 Guide adapter

Publications (2)

Publication Number Publication Date
EP3751092A1 EP3751092A1 (en) 2020-12-16
EP3751092B1 true EP3751092B1 (en) 2022-08-10

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP19180284.2A Active EP3751092B1 (en) 2019-06-14 2019-06-14 Guide adapter
EP20732202.5A Withdrawn EP3983636A1 (en) 2019-06-14 2020-06-10 Guide adapter

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20732202.5A Withdrawn EP3983636A1 (en) 2019-06-14 2020-06-10 Guide adapter

Country Status (13)

Country Link
US (1) US20220259929A1 (ja)
EP (2) EP3751092B1 (ja)
JP (1) JP2022537522A (ja)
KR (1) KR20220017408A (ja)
CN (1) CN113966431A (ja)
AU (1) AU2020290668A1 (ja)
BR (1) BR112021024847A2 (ja)
CA (1) CA3136576A1 (ja)
CL (1) CL2021003258A1 (ja)
MX (1) MX2021015490A (ja)
PE (1) PE20212337A1 (ja)
PL (1) PL3751092T3 (ja)
WO (1) WO2020249611A1 (ja)

Citations (1)

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EP3690181A1 (en) * 2019-01-30 2020-08-05 Sandvik Mining and Construction Tools AB Guide adapter with wear inserts

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EP3690181A1 (en) * 2019-01-30 2020-08-05 Sandvik Mining and Construction Tools AB Guide adapter with wear inserts

Also Published As

Publication number Publication date
CL2021003258A1 (es) 2022-08-19
US20220259929A1 (en) 2022-08-18
AU2020290668A1 (en) 2021-11-25
PL3751092T3 (pl) 2022-10-31
MX2021015490A (es) 2022-02-03
EP3751092A1 (en) 2020-12-16
PE20212337A1 (es) 2021-12-16
EP3983636A1 (en) 2022-04-20
JP2022537522A (ja) 2022-08-26
BR112021024847A2 (pt) 2022-01-18
CN113966431A (zh) 2022-01-21
WO2020249611A1 (en) 2020-12-17
KR20220017408A (ko) 2022-02-11
CA3136576A1 (en) 2020-12-17

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