DD130737A1 - Verdrehungsmechanismus mit antriebsglied - Google Patents

Verdrehungsmechanismus mit antriebsglied

Info

Publication number
DD130737A1
DD130737A1 DD19904977A DD19904977A DD130737A1 DD 130737 A1 DD130737 A1 DD 130737A1 DD 19904977 A DD19904977 A DD 19904977A DD 19904977 A DD19904977 A DD 19904977A DD 130737 A1 DD130737 A1 DD 130737A1
Authority
DD
German Democratic Republic
Prior art keywords
drive member
rotation mechanism
rotation
drive
Prior art date
Application number
DD19904977A
Other languages
English (en)
Inventor
Mirko Lada
Vladimir Koudelka
Original Assignee
Statni Vyzkumny Ustav Pro Stav
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 Statni Vyzkumny Ustav Pro Stav filed Critical Statni Vyzkumny Ustav Pro Stav
Publication of DD130737A1 publication Critical patent/DD130737A1/de

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)
  • Earth Drilling (AREA)
DD19904977A 1976-05-21 1977-05-20 Verdrehungsmechanismus mit antriebsglied DD130737A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS340676 1976-05-21

Publications (1)

Publication Number Publication Date
DD130737A1 true DD130737A1 (de) 1978-04-26

Family

ID=5374011

Family Applications (1)

Application Number Title Priority Date Filing Date
DD19904977A DD130737A1 (de) 1976-05-21 1977-05-20 Verdrehungsmechanismus mit antriebsglied

Country Status (4)

Country Link
DD (1) DD130737A1 (de)
DE (1) DE2722753A1 (de)
PL (1) PL198295A1 (de)
SE (1) SE7705927L (de)

Also Published As

Publication number Publication date
SE7705927L (sv) 1977-11-22
DE2722753A1 (de) 1977-12-08
PL198295A1 (pl) 1978-01-30

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Legal Events

Date Code Title Description
ENJ Ceased due to non-payment of renewal fee