EP3517725A4 - Excavation tool - Google Patents

Excavation tool Download PDF

Info

Publication number
EP3517725A4
EP3517725A4 EP16916796.2A EP16916796A EP3517725A4 EP 3517725 A4 EP3517725 A4 EP 3517725A4 EP 16916796 A EP16916796 A EP 16916796A EP 3517725 A4 EP3517725 A4 EP 3517725A4
Authority
EP
European Patent Office
Prior art keywords
excavation tool
excavation
tool
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
Application number
EP16916796.2A
Other languages
German (de)
French (fr)
Other versions
EP3517725A1 (en
EP3517725B1 (en
Inventor
Kazuyoshi Nakamura
Hiroki Takatsuki
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.)
Mmc Ryotec Corp
Original Assignee
Mitsubishi Materials Corp
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
Application filed by Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Publication of EP3517725A1 publication Critical patent/EP3517725A1/en
Publication of EP3517725A4 publication Critical patent/EP3517725A4/en
Application granted granted Critical
Publication of EP3517725B1 publication Critical patent/EP3517725B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/327—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools the cutter being pivoted about a longitudinal axis
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • E21B10/633—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable

Landscapes

  • 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)
EP16916796.2A 2016-09-23 2016-09-23 Drilling tool Active EP3517725B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/078016 WO2018055728A1 (en) 2016-09-23 2016-09-23 Excavation tool

Publications (3)

Publication Number Publication Date
EP3517725A1 EP3517725A1 (en) 2019-07-31
EP3517725A4 true EP3517725A4 (en) 2020-05-13
EP3517725B1 EP3517725B1 (en) 2021-07-28

Family

ID=61690373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16916796.2A Active EP3517725B1 (en) 2016-09-23 2016-09-23 Drilling tool

Country Status (2)

Country Link
EP (1) EP3517725B1 (en)
WO (1) WO2018055728A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004076370A (en) * 2002-08-15 2004-03-11 Mitsubishi Materials Corp Excavation tool
JP4957440B2 (en) * 2007-08-06 2012-06-20 三菱マテリアル株式会社 Drilling tools
WO2016027739A1 (en) * 2014-08-20 2016-02-25 三菱マテリアル株式会社 Excavation tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004076370A (en) * 2002-08-15 2004-03-11 Mitsubishi Materials Corp Excavation tool
JP4957440B2 (en) * 2007-08-06 2012-06-20 三菱マテリアル株式会社 Drilling tools
WO2016027739A1 (en) * 2014-08-20 2016-02-25 三菱マテリアル株式会社 Excavation tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2018055728A1 *

Also Published As

Publication number Publication date
WO2018055728A1 (en) 2018-03-29
EP3517725A1 (en) 2019-07-31
EP3517725B1 (en) 2021-07-28

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