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FR658626A - Perfectionnements aux marteaux perforateurs pneumatiques - Google Patents

Perfectionnements aux marteaux perforateurs pneumatiques

Info

Publication number
FR658626A
FR658626A FR658626DA FR658626A FR 658626 A FR658626 A FR 658626A FR 658626D A FR658626D A FR 658626DA FR 658626 A FR658626 A FR 658626A
Authority
FR
France
Prior art keywords
pneumatic hammer
hammer drills
drills
pneumatic
hammer
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.)
ARMES LEWIS SOC D
Original Assignee
ARMES LEWIS SOC D
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 ARMES LEWIS SOC D filed Critical ARMES LEWIS SOC D
Application granted granted Critical
Publication of FR658626A publication Critical patent/FR658626A/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)
FR658626D 1928-08-06 1928-08-06 Perfectionnements aux marteaux perforateurs pneumatiques Expired FR658626A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR658626T 1928-08-06

Publications (1)

Publication Number Publication Date
FR658626A true FR658626A (fr) 1929-06-06

Family

ID=9009218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR658626D Expired FR658626A (fr) 1928-08-06 1928-08-06 Perfectionnements aux marteaux perforateurs pneumatiques

Country Status (1)

Country Link
FR (1) FR658626A (fr)

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