DE185833C - - Google Patents

Info

Publication number
DE185833C
DE185833C DENDAT185833D DE185833DA DE185833C DE 185833 C DE185833 C DE 185833C DE NDAT185833 D DENDAT185833 D DE NDAT185833D DE 185833D A DE185833D A DE 185833DA DE 185833 C DE185833 C DE 185833C
Authority
DE
Germany
Prior art keywords
chisel
gravity
eccentric
center
drill
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
DENDAT185833D
Other languages
German (de)
English (en)
Publication of DE185833C publication Critical patent/DE185833C/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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable

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)
DENDAT185833D Active DE185833C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE185833C true DE185833C (enrdf_load_stackoverflow)

Family

ID=449640

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT185833D Active DE185833C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE185833C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414206C1 (de) * 1984-04-14 1985-02-21 Norton Christensen, Inc., Salt Lake City, Utah Drehbohrmeissel fuer Tiefbohrungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414206C1 (de) * 1984-04-14 1985-02-21 Norton Christensen, Inc., Salt Lake City, Utah Drehbohrmeissel fuer Tiefbohrungen

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