IT1023084B - Perfezionamento nei dispositivi di rivellazione - Google Patents

Perfezionamento nei dispositivi di rivellazione

Info

Publication number
IT1023084B
IT1023084B IT53667/74A IT5366774A IT1023084B IT 1023084 B IT1023084 B IT 1023084B IT 53667/74 A IT53667/74 A IT 53667/74A IT 5366774 A IT5366774 A IT 5366774A IT 1023084 B IT1023084 B IT 1023084B
Authority
IT
Italy
Prior art keywords
improvement
leveling devices
leveling
devices
Prior art date
Application number
IT53667/74A
Other languages
English (en)
Italian (it)
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Application granted granted Critical
Publication of IT1023084B publication Critical patent/IT1023084B/it

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/20Roller bits characterised by detachable or adjustable parts, e.g. legs or axles

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)
  • Earth Drilling (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
IT53667/74A 1973-10-24 1974-10-22 Perfezionamento nei dispositivi di rivellazione IT1023084B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40920773A 1973-10-24 1973-10-24

Publications (1)

Publication Number Publication Date
IT1023084B true IT1023084B (it) 1978-05-10

Family

ID=23619494

Family Applications (1)

Application Number Title Priority Date Filing Date
IT53667/74A IT1023084B (it) 1973-10-24 1974-10-22 Perfezionamento nei dispositivi di rivellazione

Country Status (10)

Country Link
JP (1) JPS5938395B2 (fr)
AR (1) AR209075A1 (fr)
CA (1) CA1048488A (fr)
DE (1) DE2449024C2 (fr)
FR (1) FR2249236B1 (fr)
GB (1) GB1469260A (fr)
IT (1) IT1023084B (fr)
NL (1) NL7413279A (fr)
NO (1) NO143764C (fr)
SE (1) SE410885B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414734A (en) * 1981-11-30 1983-11-15 Hughes Tool Company Triad for rock bit assembly
CN111673319B (zh) * 2020-05-22 2021-12-10 济南法瑞钠焊接器材股份有限公司 一种水钻钻头合金钢高频焊接器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831661A (en) * 1953-08-26 1958-04-22 Security Rock Bits Ltd Rock drilling bits

Also Published As

Publication number Publication date
NL7413279A (nl) 1975-04-28
SE410885B (sv) 1979-11-12
FR2249236B1 (fr) 1982-08-27
FR2249236A1 (fr) 1975-05-23
GB1469260A (en) 1977-04-06
CA1048488A (fr) 1979-02-13
AU7395774A (en) 1976-04-08
SE7413331L (fr) 1975-04-25
JPS5938395B2 (ja) 1984-09-17
NO143764B (no) 1980-12-29
AR209075A1 (es) 1977-03-31
NO143764C (no) 1981-04-08
JPS5073801A (fr) 1975-06-18
DE2449024C2 (de) 1984-06-28
DE2449024A1 (de) 1975-05-07
NO743809L (fr) 1975-05-20

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