FR1564173A - - Google Patents

Info

Publication number
FR1564173A
FR1564173A FR1564173DA FR1564173A FR 1564173 A FR1564173 A FR 1564173A FR 1564173D A FR1564173D A FR 1564173DA FR 1564173 A FR1564173 A FR 1564173A
Authority
FR
France
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.)
Expired
Application number
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1564173A publication Critical patent/FR1564173A/fr
Expired legal-status Critical Current

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

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)
  • Drilling Tools (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
FR1564173D 1967-04-18 1968-04-17 Expired FR1564173A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB07710/67A GB1184106A (en) 1967-04-18 1967-04-18 Improvements in or relating to Reamers

Publications (1)

Publication Number Publication Date
FR1564173A true FR1564173A (de) 1969-04-18

Family

ID=10099852

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1564173D Expired FR1564173A (de) 1967-04-18 1968-04-17

Country Status (3)

Country Link
DE (1) DE1752177B1 (de)
FR (1) FR1564173A (de)
GB (1) GB1184106A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043000A1 (de) * 1980-06-30 1982-01-06 Heinrich Liebig Hinterschnitt-Bohrwerkzeug

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2535066C2 (de) * 1975-08-06 1984-11-22 Heinrich 6102 Pfungstadt Liebig Hinterschnitt-Bohrwerkzeug
DE2652366C2 (de) * 1976-11-17 1984-03-15 Heinrich 6102 Pfungstadt Liebig Hinterschnitt-Bohrwerkzeug
DE3020143A1 (de) * 1980-05-27 1981-12-03 Stumpp + Kurz Gmbh + Co, 7000 Stuttgart Bohrwerkzeug zum herstellen einer konischen erweiterung in einer grundbohrung
DE3839617A1 (de) * 1988-11-24 1990-05-31 Fischer Artur Werke Gmbh Vorrichtung zur herstellung einer hinterschneidung in einem bohrloch
US5664900A (en) * 1992-05-28 1997-09-09 Matthies; Klaus E. Dowel joint system for connecting elements of a solid material
GB2297052B (en) * 1995-01-23 1998-02-18 David Patrick Payne Improvements in drills
JP2862807B2 (ja) * 1995-02-28 1999-03-03 株式会社ミヤナガ アンダーカット部付き孔の穿孔装置
US5810523A (en) * 1995-02-28 1998-09-22 Kabushiki Kaisha Miyanaga Apparatus for drilling a hole having an undercut space
CN102943681A (zh) * 2012-11-21 2013-02-27 天地科技股份有限公司 一种弱胶结软岩巷道支护方法及装置
CN103206170A (zh) * 2013-04-18 2013-07-17 宁波市镇海欣泰机械厂 混凝土体孔底扩孔器
CN105735899B (zh) * 2016-04-12 2018-05-25 苏州市能工基础工程有限责任公司 锚杆钻孔用筒钻
CN108265703B (zh) * 2018-02-12 2024-02-23 江苏地龙重型机械有限公司 一种用于薄壁连续墙无缝成槽机的刀具装置
CN112343914A (zh) * 2019-03-04 2021-02-09 李吴军 一种适用于盲孔植入的自锁螺杆

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE65302C (de) * V. GüILLAT in Paris, 31 Boulev. Henri IV Bohrer zur Herstellung einer Sprengkammer am Fufse des Bohrloches
DE40538C (de) * L. PLOM in Retinne und J. D'ANDRIMONT, Senator und Bürgermeister in Lüttich, 110 Boulevard Sauveinere Verfahren und Werkzeug zur Herstellung von Sprenglöchern
DE251809C (de) *
DE851488C (de) * 1951-03-22 1952-10-06 Braunkohlen Und Briketwerke Ro Verfahren und Vorrichtung zur Gewinnung und Foerderung von Mineralien

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043000A1 (de) * 1980-06-30 1982-01-06 Heinrich Liebig Hinterschnitt-Bohrwerkzeug

Also Published As

Publication number Publication date
DE1752177B1 (de) 1971-12-30
GB1184106A (en) 1970-03-11

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Legal Events

Date Code Title Description
ST Notification of lapse