DE9208928U1 - - Google Patents

Info

Publication number
DE9208928U1
DE9208928U1 DE9208928U DE9208928U DE9208928U1 DE 9208928 U1 DE9208928 U1 DE 9208928U1 DE 9208928 U DE9208928 U DE 9208928U DE 9208928 U DE9208928 U DE 9208928U DE 9208928 U1 DE9208928 U1 DE 9208928U1
Authority
DE
Germany
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
DE9208928U
Other languages
German (de)
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 DE9208928U priority Critical patent/DE9208928U1/de
Publication of DE9208928U1 publication Critical patent/DE9208928U1/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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • 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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
DE9208928U 1992-07-03 1992-07-03 Expired - Lifetime DE9208928U1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9208928U DE9208928U1 (es) 1992-07-03 1992-07-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9208928U DE9208928U1 (es) 1992-07-03 1992-07-03

Publications (1)

Publication Number Publication Date
DE9208928U1 true DE9208928U1 (es) 1992-09-10

Family

ID=6881235

Family Applications (1)

Application Number Title Priority Date Filing Date
DE9208928U Expired - Lifetime DE9208928U1 (es) 1992-07-03 1992-07-03

Country Status (1)

Country Link
DE (1) DE9208928U1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980378A1 (en) * 2007-04-11 2008-10-15 Carbodrill Srl Coring tool and connected method of production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1980378A1 (en) * 2007-04-11 2008-10-15 Carbodrill Srl Coring tool and connected method of production

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