DE181840C - - Google Patents

Info

Publication number
DE181840C
DE181840C DENDAT181840D DE181840DA DE181840C DE 181840 C DE181840 C DE 181840C DE NDAT181840 D DENDAT181840 D DE NDAT181840D DE 181840D A DE181840D A DE 181840DA DE 181840 C DE181840 C DE 181840C
Authority
DE
Germany
Prior art keywords
core
clamping jaws
tube
spring
ring
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
DENDAT181840D
Other languages
German (de)
English (en)
Publication of DE181840C publication Critical patent/DE181840C/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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
DENDAT181840D Active DE181840C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE181840C true DE181840C (enrdf_load_stackoverflow)

Family

ID=445988

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT181840D Active DE181840C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE181840C (enrdf_load_stackoverflow)

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