DE139549C - - Google Patents

Info

Publication number
DE139549C
DE139549C DENDAT139549D DE139549DA DE139549C DE 139549 C DE139549 C DE 139549C DE NDAT139549 D DENDAT139549 D DE NDAT139549D DE 139549D A DE139549D A DE 139549DA DE 139549 C DE139549 C DE 139549C
Authority
DE
Germany
Prior art keywords
grooves
knives
cutter head
wedge
base
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.)
Active
Application number
DENDAT139549D
Other languages
German (de)
English (en)
Publication of DE139549C publication Critical patent/DE139549C/de
Active 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type 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)
  • Knives (AREA)
DENDAT139549D Active DE139549C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE139549C true DE139549C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=407286

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT139549D Active DE139549C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE139549C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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