DK447689A - Borevaerktoej - Google Patents

Borevaerktoej

Info

Publication number
DK447689A
DK447689A DK447689A DK447689A DK447689A DK 447689 A DK447689 A DK 447689A DK 447689 A DK447689 A DK 447689A DK 447689 A DK447689 A DK 447689A DK 447689 A DK447689 A DK 447689A
Authority
DK
Denmark
Prior art keywords
drilling tool
drilling
tool
Prior art date
Application number
DK447689A
Other languages
Danish (da)
English (en)
Other versions
DK447689D0 (da
Inventor
Vladislav Stary
Original Assignee
Narex Praha Statni Podnik
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 Narex Praha Statni Podnik filed Critical Narex Praha Statni Podnik
Publication of DK447689D0 publication Critical patent/DK447689D0/da
Publication of DK447689A publication Critical patent/DK447689A/da

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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
    • 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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
DK447689A 1988-09-12 1989-09-11 Borevaerktoej DK447689A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS609388A CS272904B1 (en) 1988-09-12 1988-09-12 Drilling tool

Publications (2)

Publication Number Publication Date
DK447689D0 DK447689D0 (da) 1989-09-11
DK447689A true DK447689A (da) 1990-03-13

Family

ID=5407170

Family Applications (1)

Application Number Title Priority Date Filing Date
DK447689A DK447689A (da) 1988-09-12 1989-09-11 Borevaerktoej

Country Status (3)

Country Link
EP (1) EP0361189A1 (cs)
CS (1) CS272904B1 (cs)
DK (1) DK447689A (cs)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314868C2 (de) * 1993-05-05 2002-05-16 Hawera Probst Kg Hartmetall Bohrwerkzeug
JPH09506831A (ja) * 1994-09-06 1997-07-08 カール メツケル マルチブレード工具の製法
DE19650487A1 (de) * 1996-12-05 1998-06-10 Hilti Ag Bohrwerkzeug
DE19722518A1 (de) 1997-05-30 1998-12-03 Hawera Probst Gmbh Bohrwerkzeug, insbesondere Gesteinsbohrer
DE19722519A1 (de) 1997-05-30 1998-12-03 Hawera Probst Gmbh Bohrwerkzeug
DE19722517A1 (de) 1997-05-30 1998-12-03 Hawera Probst Gmbh Bohrwerkzeug
DE19859885B4 (de) * 1998-05-20 2005-06-16 Robert Bosch Gmbh Verfahren zur Herstellung eines Bohrwerkzeugs
DE19915304B4 (de) * 1999-03-22 2006-07-27 Robert Bosch Gmbh Bohrwerkzeug
DE19915305C2 (de) * 1999-04-03 2003-11-20 Hawera Probst Gmbh Bohrwerkzeug
DE10009732A1 (de) * 2000-03-02 2001-09-06 Hawera Probst Gmbh Gesteinsbohrer
DE10047332A1 (de) 2000-09-25 2002-04-11 Hilti Ag Werkzeug mit Wendel
DK1875032T3 (da) * 2005-04-28 2011-01-10 Irwin Ind Tool Company As Boreværktøj
DE102009055748A1 (de) * 2009-11-26 2011-06-09 Südsta AG Verfahren zur Herstellung eines Bohrers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR408276A (cs) * 1900-01-01
GB567028A (cs) * 1900-01-01
DE493860C (de) * 1930-03-12 Siemens Schuckertwerke Akt Ges Verfahren zur Herstellung von Bohrern mit Schneidentraegern aus Hartmetall
FR356051A (fr) * 1905-07-11 1905-11-20 Johann Fischer Fer de mine rotatif
US2504601A (en) * 1947-12-30 1950-04-18 Earl M Spry Auger drill
DE887631C (de) * 1951-05-23 1953-08-24 Alfred Kunkel Steinbohrer
CH331438A (de) * 1955-02-02 1958-07-31 Kunkel Alfred Gesteinsbohrer
DE3317989A1 (de) * 1983-05-18 1984-11-22 Hawera Probst Gmbh + Co, 7980 Ravensburg Bohrwerkzeug

Also Published As

Publication number Publication date
DK447689D0 (da) 1989-09-11
CS609388A1 (en) 1990-03-14
CS272904B1 (en) 1991-02-12
EP0361189A1 (de) 1990-04-04

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment
AHB Application shelved due to non-payment