NO771246L - Borekrone. - Google Patents

Borekrone.

Info

Publication number
NO771246L
NO771246L NO771246A NO771246A NO771246L NO 771246 L NO771246 L NO 771246L NO 771246 A NO771246 A NO 771246A NO 771246 A NO771246 A NO 771246A NO 771246 L NO771246 L NO 771246L
Authority
NO
Norway
Prior art keywords
drill crowns
crowns
drill
Prior art date
Application number
NO771246A
Other languages
English (en)
Norwegian (no)
Inventor
Carl Eric Johansson
Original Assignee
Skf Ind Trading & Dev
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 Skf Ind Trading & Dev filed Critical Skf Ind Trading & Dev
Publication of NO771246L publication Critical patent/NO771246L/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
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • E21B10/246—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant
    • 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
    • E21B10/08—Roller bits
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
    • 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
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details

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)
  • Rolling Contact Bearings (AREA)
NO771246A 1976-04-12 1977-04-06 Borekrone. NO771246L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7603835,A NL179409C (nl) 1976-04-12 1976-04-12 Boorbeitel voor gesteente.

Publications (1)

Publication Number Publication Date
NO771246L true NO771246L (no) 1977-10-13

Family

ID=19826003

Family Applications (1)

Application Number Title Priority Date Filing Date
NO771246A NO771246L (no) 1976-04-12 1977-04-06 Borekrone.

Country Status (12)

Country Link
JP (1) JPS5936076B2 (nl)
AU (1) AU514631B2 (nl)
BR (1) BR7702233A (nl)
CA (1) CA1064014A (nl)
DE (1) DE2715788C2 (nl)
FR (1) FR2348358A1 (nl)
GB (1) GB1563533A (nl)
IT (1) IT1076714B (nl)
NL (1) NL179409C (nl)
NO (1) NO771246L (nl)
SE (1) SE433958B (nl)
ZA (1) ZA772203B (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2755591C2 (de) * 1977-12-14 1985-11-07 SKF GmbH, 8720 Schweinfurt Rollenmeißel mit kegelig ausgebildeten Schneidrollen
DE2824202A1 (de) * 1978-06-02 1979-12-06 Sandvik Gmbh Rollenmeissel mit mehreren kegeligen schneidrollen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1010406A (en) * 1909-07-15 1911-11-28 Howard Robard Hughes Roller-drill.
US1973975A (en) * 1933-07-25 1934-09-18 Anthony E Carlson Rotary rock bit construction
US2292036A (en) * 1940-06-28 1942-08-04 Chicago Pneumatic Tool Co Bearing for drill bits
US2339161A (en) * 1942-07-21 1944-01-11 Reed Roller Bit Co Cone bit construction
FR1053319A (fr) * 1952-04-02 1954-02-02 Materiel De Forage Soc De Fab Dispositif de montage pour outils à molettes
US2831660A (en) * 1956-04-16 1958-04-22 Nat Oil Tool Co Inc Lubricated well drill
US3307645A (en) * 1964-10-20 1967-03-07 Exxon Production Research Co Reverse bearing bit
NL179154C (nl) 1975-02-17 1986-07-16 Skf Ind Trading & Dev Rotary boorkop.
US3921735A (en) * 1975-02-27 1975-11-25 Dresser Ind Rotary rock bit with cone mouth air screen

Also Published As

Publication number Publication date
BR7702233A (pt) 1977-12-13
SE7703246L (sv) 1977-10-13
NL179409C (nl) 1986-09-01
SE433958B (sv) 1984-06-25
AU514631B2 (en) 1981-02-19
ZA772203B (en) 1978-03-29
AU2359777A (en) 1978-09-28
JPS5936076B2 (ja) 1984-09-01
FR2348358B3 (nl) 1980-01-18
NL7603835A (nl) 1977-10-14
DE2715788C2 (de) 1986-06-26
IT1076714B (it) 1985-04-27
NL179409B (nl) 1986-04-01
FR2348358A1 (fr) 1977-11-10
GB1563533A (en) 1980-03-26
DE2715788A1 (de) 1977-10-20
CA1064014A (en) 1979-10-09
JPS52145302A (en) 1977-12-03

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