FR1186226A - Marteau à percussion - Google Patents

Marteau à percussion

Info

Publication number
FR1186226A
FR1186226A FR1186226DA FR1186226A FR 1186226 A FR1186226 A FR 1186226A FR 1186226D A FR1186226D A FR 1186226DA FR 1186226 A FR1186226 A FR 1186226A
Authority
FR
France
Prior art keywords
percussion hammer
percussion
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.)
Mannesmann Demag AG
Original Assignee
Demag AG
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 Demag AG filed Critical Demag AG
Application granted granted Critical
Publication of FR1186226A publication Critical patent/FR1186226A/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)
FR1186226D 1956-07-20 1957-06-17 Marteau à percussion Expired FR1186226A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1186226X 1956-07-20

Publications (1)

Publication Number Publication Date
FR1186226A true FR1186226A (fr) 1959-08-18

Family

ID=7730814

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1186226D Expired FR1186226A (fr) 1956-07-20 1957-06-17 Marteau à percussion

Country Status (1)

Country Link
FR (1) FR1186226A (fr)

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