DE343450C - - Google Patents

Info

Publication number
DE343450C
DE343450C DENDAT343450D DE343450DA DE343450C DE 343450 C DE343450 C DE 343450C DE NDAT343450 D DENDAT343450 D DE NDAT343450D DE 343450D A DE343450D A DE 343450DA DE 343450 C DE343450 C DE 343450C
Authority
DE
Germany
Prior art keywords
directed obliquely
exhaust holes
obliquely backwards
cylinder
outside
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
DENDAT343450D
Other languages
German (de)
English (en)
Publication of DE343450C publication Critical patent/DE343450C/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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • E21B21/011—Dust eliminating or dust removing while drilling
    • E21B21/014—Preventing exhaust air from the drill motor from blowing-off towards the working face

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)
DENDAT343450D Active DE343450C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE343450C true DE343450C (enrdf_load_stackoverflow)

Family

ID=572765

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT343450D Active DE343450C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE343450C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021306B (de) * 1954-10-02 1957-12-27 Rudolf Hausherr & Soehne G M B Handgefuehrtes Geraet zum Hereingewinnen von Kohle od. dgl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021306B (de) * 1954-10-02 1957-12-27 Rudolf Hausherr & Soehne G M B Handgefuehrtes Geraet zum Hereingewinnen von Kohle od. dgl.

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