DE9004138U1 - Diamant-Bohrkronenrohr-Deckel - Google Patents

Diamant-Bohrkronenrohr-Deckel

Info

Publication number
DE9004138U1
DE9004138U1 DE9004138U DE9004138U DE9004138U1 DE 9004138 U1 DE9004138 U1 DE 9004138U1 DE 9004138 U DE9004138 U DE 9004138U DE 9004138 U DE9004138 U DE 9004138U DE 9004138 U1 DE9004138 U1 DE 9004138U1
Authority
DE
Germany
Prior art keywords
core bit
tube cover
diamond core
bit tube
diamond
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
DE9004138U
Other languages
German (de)
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.)
HELTEWIG BERND 5600 WUPPERTAL DE
Original Assignee
HELTEWIG BERND 5600 WUPPERTAL DE
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 HELTEWIG BERND 5600 WUPPERTAL DE filed Critical HELTEWIG BERND 5600 WUPPERTAL DE
Priority to DE9004138U priority Critical patent/DE9004138U1/de
Publication of DE9004138U1 publication Critical patent/DE9004138U1/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

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)
DE9004138U 1990-04-10 1990-04-10 Diamant-Bohrkronenrohr-Deckel Expired - Lifetime DE9004138U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9004138U DE9004138U1 (de) 1990-04-10 1990-04-10 Diamant-Bohrkronenrohr-Deckel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9004138U DE9004138U1 (de) 1990-04-10 1990-04-10 Diamant-Bohrkronenrohr-Deckel

Publications (1)

Publication Number Publication Date
DE9004138U1 true DE9004138U1 (de) 1990-06-13

Family

ID=6852786

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9004138U Expired - Lifetime DE9004138U1 (de) 1990-04-10 1990-04-10 Diamant-Bohrkronenrohr-Deckel

Country Status (1)

Country Link
DE (1) DE9004138U1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170113358A1 (en) * 2015-10-23 2017-04-27 Wezag Gmbh Werkzeugfabrik Group of Manual Pliers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170113358A1 (en) * 2015-10-23 2017-04-27 Wezag Gmbh Werkzeugfabrik Group of Manual Pliers

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