FR1230070A - Percussion hammer drill - Google Patents

Percussion hammer drill

Info

Publication number
FR1230070A
FR1230070A FR794907A FR794907A FR1230070A FR 1230070 A FR1230070 A FR 1230070A FR 794907 A FR794907 A FR 794907A FR 794907 A FR794907 A FR 794907A FR 1230070 A FR1230070 A FR 1230070A
Authority
FR
France
Prior art keywords
hammer drill
percussion hammer
percussion
drill
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
FR794907A
Other languages
French (fr)
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.)
Rudolf Hausherr & Sohne G M B
Original Assignee
Rudolf Hausherr & Sohne G M B
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 Rudolf Hausherr & Sohne G M B filed Critical Rudolf Hausherr & Sohne G M B
Application granted granted Critical
Publication of FR1230070A publication Critical patent/FR1230070A/en
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
    • E21B6/08—Separate drives for percussion and rotation

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)
FR794907A 1958-05-19 1959-05-19 Percussion hammer drill Expired FR1230070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1230070X 1958-05-19

Publications (1)

Publication Number Publication Date
FR1230070A true FR1230070A (en) 1960-09-13

Family

ID=7734895

Family Applications (1)

Application Number Title Priority Date Filing Date
FR794907A Expired FR1230070A (en) 1958-05-19 1959-05-19 Percussion hammer drill

Country Status (1)

Country Link
FR (1) FR1230070A (en)

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