NO912892L - Graveredskap. - Google Patents

Graveredskap.

Info

Publication number
NO912892L
NO912892L NO91912892A NO912892A NO912892L NO 912892 L NO912892 L NO 912892L NO 91912892 A NO91912892 A NO 91912892A NO 912892 A NO912892 A NO 912892A NO 912892 L NO912892 L NO 912892L
Authority
NO
Norway
Prior art keywords
grave tool
grave
tool
Prior art date
Application number
NO91912892A
Other languages
English (en)
Other versions
NO301348B1 (no
NO912892D0 (no
Inventor
Takeshi Hayashi
Shigeru Sato
Katsuaki Tsujimoto
Daishiro Miyazaki
Yoneo Hiwasa
Toshiki Ishimatsu
Kimiyo Wada
Original Assignee
Mitsubishi Materiales 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 Materiales Corp filed Critical Mitsubishi Materiales Corp
Publication of NO912892D0 publication Critical patent/NO912892D0/no
Publication of NO912892L publication Critical patent/NO912892L/no
Publication of NO301348B1 publication Critical patent/NO301348B1/no

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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion 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
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable

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)
  • Auxiliary Devices For Machine Tools (AREA)
NO912892A 1990-07-27 1991-07-24 Boreverktöy NO301348B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20035490 1990-07-27

Publications (3)

Publication Number Publication Date
NO912892D0 NO912892D0 (no) 1991-07-24
NO912892L true NO912892L (no) 1992-01-28
NO301348B1 NO301348B1 (no) 1997-10-13

Family

ID=16422905

Family Applications (1)

Application Number Title Priority Date Filing Date
NO912892A NO301348B1 (no) 1990-07-27 1991-07-24 Boreverktöy

Country Status (11)

Country Link
US (1) US5139099A (no)
EP (1) EP0468515B1 (no)
KR (1) KR960001530B1 (no)
AU (1) AU644195B2 (no)
CA (1) CA2047874C (no)
DE (1) DE69101285T2 (no)
ES (1) ES2052305T3 (no)
FI (1) FI94891C (no)
HK (1) HK31995A (no)
NO (1) NO301348B1 (no)
ZA (1) ZA915804B (no)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209665B1 (en) 1996-07-01 2001-04-03 Ardis L. Holte Reverse circulation drilling system with bit locked underreamer arms
US5975222A (en) * 1996-07-01 1999-11-02 Holte; Ardis L. Reverse circulation drilling system with bit locked underreamer arms
GB2316964B (en) * 1996-09-04 2000-06-07 Bulroc Drill means
AUPO737497A0 (en) * 1997-06-16 1997-07-10 Sds Digger Tools Pty Ltd Drill bit with drive and retaining means located forwardly of hammer barrel
US6021856A (en) * 1998-05-29 2000-02-08 Numa Tool Company Bit retention system
US6176332B1 (en) * 1998-12-31 2001-01-23 Kennametal Inc. Rotatable cutting bit assembly with cutting inserts
CA2460069C (en) * 2001-09-20 2010-07-13 Shell Canada Limited Percussion drilling head
US7419017B2 (en) * 2005-06-10 2008-09-02 Keystone Drill Services, Inc. Multi-sectional percussive drill bit assembly
US7389833B2 (en) * 2005-06-10 2008-06-24 Keystone Drill Services, Inc. Multi-sectional percussive drill bit assembly
FR2889556B1 (fr) * 2005-08-04 2007-09-21 Gerard Arsonnet Dispositif de forage d'un puits suivant un axe de forage pour mesurer un parametre d'une partie d'un sol
US7758331B2 (en) * 2006-02-22 2010-07-20 American Maplan Corporation Pipe support system
CA2724677A1 (en) * 2007-05-25 2008-12-04 Byung Wa Yoon Hammer bit
US20090285637A1 (en) * 2008-05-16 2009-11-19 W.T.W. Construction, Inc. Pile mandrel with extendable reaming members
WO2011094359A2 (en) * 2010-01-26 2011-08-04 Wvc Mincon Inc. Drilling assembly with underreaming bit and method of use
KR101302554B1 (ko) * 2011-02-17 2013-09-02 백은미 지반 천공용 해머의 비트
FI124451B (fi) 2013-10-22 2014-09-15 Atlas Copco Rotex Ab Oy Porauslaite
FI127402B (fi) 2015-09-14 2018-05-15 Mincon Nordic Oy Poralaite
FI3464821T3 (fi) 2016-05-27 2024-10-18 Joy Global Underground Mining Llc Segmentoidulla leikkauslevyllä varustettu leikkuupää
CN106320987B (zh) * 2016-08-19 2018-08-31 沧州格锐特钻头有限公司 一种内扩孔pdc钻头

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1776018A (en) * 1927-11-14 1930-09-16 Harry C Brown Underreaming well-drilling bit
US1754525A (en) * 1928-01-18 1930-04-15 Grant John Expanding reamer
US1858263A (en) * 1929-04-13 1932-05-17 Charlton James Rotary expansion drilling tool
US1839588A (en) * 1929-09-20 1932-01-05 Grant John Plunger actuated underreamer
GB550100A (en) * 1941-05-16 1942-12-23 Alexander Zussman Orkin Improvements in or relating to drills for mixed excavation
US3185228A (en) * 1963-01-21 1965-05-25 Hughes Tool Co Rotary-percussion drill bit with heel row inserts to prevent wedging
US3522852A (en) * 1967-08-18 1970-08-04 Trident Ind Inc Expandable drill bit and reamer construction
US3536150A (en) * 1968-09-05 1970-10-27 Frank E Stebley Rotary-percussion drill bit
GB2132252B (en) * 1982-10-25 1985-12-18 Tone Boring Co An air hammer drill device
US4874046A (en) * 1988-04-01 1989-10-17 Hurd Marvin G Groove cutter for concrete bores
SE8901199L (sv) * 1989-04-05 1990-10-06 Uniroc Ab Excentrisk borrkrona

Also Published As

Publication number Publication date
CA2047874C (en) 1996-12-17
AU644195B2 (en) 1993-12-02
DE69101285D1 (de) 1994-04-07
FI913590A (fi) 1992-01-28
FI94891C (fi) 1995-11-10
US5139099A (en) 1992-08-18
FI913590A0 (fi) 1991-07-26
KR960001530B1 (ko) 1996-02-01
AU8132791A (en) 1992-01-30
CA2047874A1 (en) 1992-01-28
EP0468515B1 (en) 1994-03-02
HK31995A (en) 1995-03-17
FI94891B (fi) 1995-07-31
DE69101285T2 (de) 1994-07-07
ZA915804B (en) 1992-04-29
NO301348B1 (no) 1997-10-13
EP0468515A1 (en) 1992-01-29
ES2052305T3 (es) 1994-07-01
NO912892D0 (no) 1991-07-24
KR920002898A (ko) 1992-02-28

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Legal Events

Date Code Title Description
MK1K Patent expired