NO865271D0 - Borovergang. - Google Patents

Borovergang.

Info

Publication number
NO865271D0
NO865271D0 NO865271A NO865271A NO865271D0 NO 865271 D0 NO865271 D0 NO 865271D0 NO 865271 A NO865271 A NO 865271A NO 865271 A NO865271 A NO 865271A NO 865271 D0 NO865271 D0 NO 865271D0
Authority
NO
Norway
Prior art keywords
drill
adapter
drill rod
longitudinal axis
drill bit
Prior art date
Application number
NO865271A
Other languages
English (en)
Other versions
NO865271L (no
Inventor
Vladimir Vancura
Original Assignee
Vladimir Vancura
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 Vladimir Vancura filed Critical Vladimir Vancura
Publication of NO865271D0 publication Critical patent/NO865271D0/no
Publication of NO865271L publication Critical patent/NO865271L/no

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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/327—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools the cutter being pivoted about a longitudinal axis
    • 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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Paper (AREA)
  • Surgical Instruments (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Eye Examination Apparatus (AREA)
NO865271A 1985-04-25 1986-12-23 Borovergang. NO865271L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/727,224 US4682662A (en) 1985-04-25 1985-04-25 Drill adapter
PCT/SE1986/000189 WO1986006435A1 (en) 1985-04-25 1986-04-24 A drill adapter

Publications (2)

Publication Number Publication Date
NO865271D0 true NO865271D0 (no) 1986-12-23
NO865271L NO865271L (no) 1987-02-19

Family

ID=24921821

Family Applications (1)

Application Number Title Priority Date Filing Date
NO865271A NO865271L (no) 1985-04-25 1986-12-23 Borovergang.

Country Status (11)

Country Link
US (1) US4682662A (no)
EP (1) EP0221948B1 (no)
JP (1) JPS62502556A (no)
KR (1) KR880700147A (no)
AT (1) ATE41468T1 (no)
AU (1) AU569658B2 (no)
DE (1) DE3662416D1 (no)
DK (1) DK626786A (no)
FI (1) FI865308A0 (no)
NO (1) NO865271L (no)
WO (1) WO1986006435A1 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460300B (sv) * 1986-10-03 1989-09-25 Loevab Loef Och Oestlund Ab Roterbart borrverktyg med upprymningsdel till en saenkborrmaskin

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1754830A (en) * 1926-11-20 1930-04-15 John W Macclatchie Underreamer
US1745650A (en) * 1927-10-19 1930-02-04 Grant John Expanding roller underreamer
GB963670A (en) * 1962-03-01 1964-07-15 Skanska Cementgjuteriet Ab Improvements in or relating to deep drills
US3277972A (en) * 1962-07-09 1966-10-11 Atlas Copco Ab Rock drilling equipment
US3416616A (en) * 1967-03-01 1968-12-17 Skanska Cementgjuteriet Ab Deep drills with eccentric bits
SE325005B (no) * 1968-10-16 1970-06-22 Atlas Copco Ab
BE795205A (fr) * 1972-02-10 1973-05-29 Atlas Copco Ab Procede et appareillage pour le forage rotatif
SE367040B (no) * 1972-05-03 1974-05-13 Stabilator Ab
SE421551B (sv) * 1980-03-26 1982-01-04 Sandvik Ab Borrverktyg for rotations- och/eller slagborrning

Also Published As

Publication number Publication date
KR880700147A (ko) 1988-02-20
ATE41468T1 (de) 1989-04-15
DE3662416D1 (en) 1989-04-20
JPS62502556A (ja) 1987-10-01
US4682662A (en) 1987-07-28
FI865308A (fi) 1986-12-23
AU569658B2 (en) 1988-02-11
DK626786D0 (da) 1986-12-23
EP0221948B1 (en) 1989-03-15
EP0221948A1 (en) 1987-05-20
WO1986006435A1 (en) 1986-11-06
NO865271L (no) 1987-02-19
AU5779486A (en) 1986-11-18
FI865308A0 (fi) 1986-12-23
DK626786A (da) 1986-12-23

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