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SE397563B - Bergborrmaskin - Google Patents

Bergborrmaskin

Info

Publication number
SE397563B
SE397563B SE7502838A SE7502838A SE397563B SE 397563 B SE397563 B SE 397563B SE 7502838 A SE7502838 A SE 7502838A SE 7502838 A SE7502838 A SE 7502838A SE 397563 B SE397563 B SE 397563B
Authority
SE
Sweden
Prior art keywords
mountain drill
mountain
drill
Prior art date
Application number
SE7502838A
Other languages
English (en)
Other versions
SE7502838L (sv
Inventor
S Granholm
Original Assignee
Linden Alimak Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Linden Alimak Ab filed Critical Linden Alimak Ab
Priority to SE7502838A priority Critical patent/SE397563B/sv
Publication of SE7502838L publication Critical patent/SE7502838L/sv
Publication of SE397563B publication Critical patent/SE397563B/sv

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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
    • E21B6/08—Separate drives for percussion and rotation

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)
SE7502838A 1975-03-13 1975-03-13 Bergborrmaskin SE397563B (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7502838A SE397563B (sv) 1975-03-13 1975-03-13 Bergborrmaskin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7502838A SE397563B (sv) 1975-03-13 1975-03-13 Bergborrmaskin

Publications (2)

Publication Number Publication Date
SE7502838L SE7502838L (sv) 1976-09-14
SE397563B true SE397563B (sv) 1977-11-07

Family

ID=20323948

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7502838A SE397563B (sv) 1975-03-13 1975-03-13 Bergborrmaskin

Country Status (1)

Country Link
SE (1) SE397563B (sv)

Also Published As

Publication number Publication date
SE7502838L (sv) 1976-09-14

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