DE229636C - - Google Patents

Info

Publication number
DE229636C
DE229636C DENDAT229636D DE229636DA DE229636C DE 229636 C DE229636 C DE 229636C DE NDAT229636 D DENDAT229636 D DE NDAT229636D DE 229636D A DE229636D A DE 229636DA DE 229636 C DE229636 C DE 229636C
Authority
DE
Germany
Prior art keywords
turbine
conical
compressed air
pressure medium
helical
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
DENDAT229636D
Other languages
German (de)
English (en)
Publication of DE229636C publication Critical patent/DE229636C/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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling

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)
DENDAT229636D Active DE229636C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE229636C true DE229636C (enrdf_load_stackoverflow)

Family

ID=489919

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT229636D Active DE229636C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE229636C (enrdf_load_stackoverflow)

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