ZA716172B - An independently rotated pneumatic rock drill - Google Patents

An independently rotated pneumatic rock drill

Info

Publication number
ZA716172B
ZA716172B ZA716172A ZA716172A ZA716172B ZA 716172 B ZA716172 B ZA 716172B ZA 716172 A ZA716172 A ZA 716172A ZA 716172 A ZA716172 A ZA 716172A ZA 716172 B ZA716172 B ZA 716172B
Authority
ZA
South Africa
Prior art keywords
rock drill
independently rotated
pneumatic rock
rotated pneumatic
independently
Prior art date
Application number
ZA716172A
Inventor
R Lindquist
G Ekwall
E Ahlberg
Original Assignee
Atlas Copco 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 Atlas Copco Ab filed Critical Atlas Copco Ab
Publication of ZA716172B publication Critical patent/ZA716172B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/11—Arrangements of noise-damping means
    • 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
    • E21B1/00—Percussion drilling
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
    • E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
    • 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

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)
ZA716172A 1970-10-01 1971-09-14 An independently rotated pneumatic rock drill ZA716172B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7723370A 1970-10-01 1970-10-01

Publications (1)

Publication Number Publication Date
ZA716172B true ZA716172B (en) 1972-05-31

Family

ID=22136859

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA716172A ZA716172B (en) 1970-10-01 1971-09-14 An independently rotated pneumatic rock drill

Country Status (2)

Country Link
US (1) US3659657A (en)
ZA (1) ZA716172B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642949A (en) * 1921-07-12 1927-09-20 George H Gilman Drilling machine
US3332502A (en) * 1965-01-28 1967-07-25 Kh I Gornogo Mash Avtomatiki I Rockdrilling device
US3385378A (en) * 1966-06-22 1968-05-28 Robert D. Weber Automatic air operated installation gun

Also Published As

Publication number Publication date
US3659657A (en) 1972-05-02

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