EP3279425A4 - Excavation tool - Google Patents

Excavation tool Download PDF

Info

Publication number
EP3279425A4
EP3279425A4 EP16772760.1A EP16772760A EP3279425A4 EP 3279425 A4 EP3279425 A4 EP 3279425A4 EP 16772760 A EP16772760 A EP 16772760A EP 3279425 A4 EP3279425 A4 EP 3279425A4
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.)
Ceased
Application number
EP16772760.1A
Other languages
German (de)
French (fr)
Other versions
EP3279425A1 (en
Inventor
Kunihiko Tanaka
Hiroshi Ota
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.)
Mitsubishi Materials 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 EP3279425A1 publication Critical patent/EP3279425A1/en
Publication of EP3279425A4 publication Critical patent/EP3279425A4/en
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
EP16772760.1A 2015-04-03 2016-03-28 Excavation tool Ceased EP3279425A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015077026A JP6606848B2 (en) 2015-04-03 2015-04-03 Drilling tools
PCT/JP2016/059972 WO2016158879A1 (en) 2015-04-03 2016-03-28 Excavation tool

Publications (2)

Publication Number Publication Date
EP3279425A1 EP3279425A1 (en) 2018-02-07
EP3279425A4 true EP3279425A4 (en) 2018-10-24

Family

ID=57007139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16772760.1A Ceased EP3279425A4 (en) 2015-04-03 2016-03-28 Excavation tool

Country Status (4)

Country Link
EP (1) EP3279425A4 (en)
JP (1) JP6606848B2 (en)
RU (1) RU2017134039A (en)
WO (1) WO2016158879A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022071528A (en) * 2020-10-28 2022-05-16 Ｍｍｃリョウテック株式会社 Drilling bit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771834A (en) * 1985-03-20 1988-09-20 Siegfried Treitz Percussion drill bit for rock perforators
FR2646875A1 (en) * 1989-05-11 1990-11-16 Matieres Nucleaires Cie Genera Rotary-percussive boring bit with ultra-hard biting elements
JPH05141170A (en) * 1991-11-05 1993-06-08 Mitsubishi Materials Corp Drilling tool
US20080135308A1 (en) * 2006-11-29 2008-06-12 Sandvik Intellectual Property Ab Button bit
US20120267173A1 (en) * 2011-04-25 2012-10-25 Jones Mark L Drill bit for boring earth and other hard materials

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60210382A (en) * 1984-04-03 1985-10-22 Sumitomo Electric Ind Ltd Tool made of composite sintered body and its production
JP4036728B2 (en) * 2002-11-05 2008-01-23 岡部株式会社 Self-drilling lock bolt and self-drilling lock bolt using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4771834A (en) * 1985-03-20 1988-09-20 Siegfried Treitz Percussion drill bit for rock perforators
FR2646875A1 (en) * 1989-05-11 1990-11-16 Matieres Nucleaires Cie Genera Rotary-percussive boring bit with ultra-hard biting elements
JPH05141170A (en) * 1991-11-05 1993-06-08 Mitsubishi Materials Corp Drilling tool
US20080135308A1 (en) * 2006-11-29 2008-06-12 Sandvik Intellectual Property Ab Button bit
US20120267173A1 (en) * 2011-04-25 2012-10-25 Jones Mark L Drill bit for boring earth and other hard materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2016158879A1 *

Also Published As

Publication number Publication date
RU2017134039A (en) 2019-05-06
JP6606848B2 (en) 2019-11-20
WO2016158879A1 (en) 2016-10-06
EP3279425A1 (en) 2018-02-07
JP2016196764A (en) 2016-11-24

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