DE9308443U1 - Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen - Google Patents

Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen

Info

Publication number
DE9308443U1
DE9308443U1 DE9308443U DE9308443U DE9308443U1 DE 9308443 U1 DE9308443 U1 DE 9308443U1 DE 9308443 U DE9308443 U DE 9308443U DE 9308443 U DE9308443 U DE 9308443U DE 9308443 U1 DE9308443 U1 DE 9308443U1
Authority
DE
Germany
Prior art keywords
solid core
core bit
earth bores
cased earth
making
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.)
Expired - Lifetime
Application number
DE9308443U
Other languages
English (en)
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.)
Bilfinger SE
Original Assignee
Bilfinger und Berger Bau AG
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 Bilfinger und Berger Bau AG filed Critical Bilfinger und Berger Bau AG
Priority to DE9308443U priority Critical patent/DE9308443U1/de
Publication of DE9308443U1 publication Critical patent/DE9308443U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B10/36—Percussion drill bits

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)
DE9308443U 1993-06-05 1993-06-05 Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen Expired - Lifetime DE9308443U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9308443U DE9308443U1 (de) 1993-06-05 1993-06-05 Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9308443U DE9308443U1 (de) 1993-06-05 1993-06-05 Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen

Publications (1)

Publication Number Publication Date
DE9308443U1 true DE9308443U1 (de) 1993-08-19

Family

ID=6894092

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9308443U Expired - Lifetime DE9308443U1 (de) 1993-06-05 1993-06-05 Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen

Country Status (1)

Country Link
DE (1) DE9308443U1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0707129A3 (de) * 1994-10-15 1997-08-06 Hilti Ag Bohrwerkzeug mit Trägerkörper und Schneidkörpern
DE10334610A1 (de) * 2003-07-29 2005-03-03 Hilti Ag Bohrkopf
EP1757769A1 (de) 2005-08-25 2007-02-28 Bernard Lionel Gien Schlagbohrneissel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD75306A (de) *
DE2051811A1 (en) * 1970-10-22 1972-04-27 Fried. Krupp Gmbh, 4300 Essen Well drilling bit - using protruding hard metal pin guides to reduce friction heating
DE1954576B2 (de) * 1969-03-19 1973-04-12 Compagnie Francaise Des Petroles, S.A., Paris Bohrmeissel
DE3634440A1 (de) * 1986-10-09 1988-04-14 Richard Karnebogen Hartmetallbestueckte schlagbohrkrone, insbesondere fuer versenkhammerbohrer
DE3839154A1 (de) * 1987-11-17 1989-06-01 Boart Hardmetals Europ Ltd Bohrmeissel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD75306A (de) *
DE1954576B2 (de) * 1969-03-19 1973-04-12 Compagnie Francaise Des Petroles, S.A., Paris Bohrmeissel
DE2051811A1 (en) * 1970-10-22 1972-04-27 Fried. Krupp Gmbh, 4300 Essen Well drilling bit - using protruding hard metal pin guides to reduce friction heating
DE3634440A1 (de) * 1986-10-09 1988-04-14 Richard Karnebogen Hartmetallbestueckte schlagbohrkrone, insbesondere fuer versenkhammerbohrer
DE3839154A1 (de) * 1987-11-17 1989-06-01 Boart Hardmetals Europ Ltd Bohrmeissel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0707129A3 (de) * 1994-10-15 1997-08-06 Hilti Ag Bohrwerkzeug mit Trägerkörper und Schneidkörpern
DE10334610A1 (de) * 2003-07-29 2005-03-03 Hilti Ag Bohrkopf
DE10334610B4 (de) * 2003-07-29 2006-04-20 Hilti Ag Bohrkopf
US7163070B2 (en) 2003-07-29 2007-01-16 Hilti Aktiengesellschaft Drill head
EP1757769A1 (de) 2005-08-25 2007-02-28 Bernard Lionel Gien Schlagbohrneissel

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