FR858105A - Perforatrice de roche - Google Patents

Perforatrice de roche

Info

Publication number
FR858105A
FR858105A FR858105DA FR858105A FR 858105 A FR858105 A FR 858105A FR 858105D A FR858105D A FR 858105DA FR 858105 A FR858105 A FR 858105A
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 FR858105A publication Critical patent/FR858105A/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder

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)
FR858105D 1938-07-26 1939-07-20 Perforatrice de roche Expired FR858105A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US858105XA 1938-07-26 1938-07-26

Publications (1)

Publication Number Publication Date
FR858105A true FR858105A (fr) 1940-11-18

Family

ID=22194100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR858105D Expired FR858105A (fr) 1938-07-26 1939-07-20 Perforatrice de roche

Country Status (1)

Country Link
FR (1) FR858105A (fr)

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