FR807270A - Perforatrice de roche - Google Patents

Perforatrice de roche

Info

Publication number
FR807270A
FR807270A FR807270DA FR807270A FR 807270 A FR807270 A FR 807270A FR 807270D A FR807270D A FR 807270DA FR 807270 A FR807270 A FR 807270A
Authority
FR
France
Prior art keywords
puncher
rock
rock puncher
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.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of FR807270A publication Critical patent/FR807270A/fr
Expired 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
    • 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

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)
FR807270D 1936-06-10 1936-06-10 Perforatrice de roche Expired FR807270A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR807270T 1936-06-10

Publications (1)

Publication Number Publication Date
FR807270A true FR807270A (fr) 1937-01-08

Family

ID=9252340

Family Applications (1)

Application Number Title Priority Date Filing Date
FR807270D Expired FR807270A (fr) 1936-06-10 1936-06-10 Perforatrice de roche

Country Status (1)

Country Link
FR (1) FR807270A (fr)

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