BR7702233A - ROCK DRILLING DRILL - Google Patents

ROCK DRILLING DRILL

Info

Publication number
BR7702233A
BR7702233A BR7702233A BR7702233A BR7702233A BR 7702233 A BR7702233 A BR 7702233A BR 7702233 A BR7702233 A BR 7702233A BR 7702233 A BR7702233 A BR 7702233A BR 7702233 A BR7702233 A BR 7702233A
Authority
BR
Brazil
Prior art keywords
rock drilling
drilling drill
drill
rock
drilling
Prior art date
Application number
BR7702233A
Other languages
Portuguese (pt)
Inventor
C 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 BR7702233A publication Critical patent/BR7702233A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
BR7702233A 1976-04-12 1977-04-06 ROCK DRILLING DRILL BR7702233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7603835,A NL179409C (en) 1976-04-12 1976-04-12 DRILL CHISEL FOR ROCK.

Publications (1)

Publication Number Publication Date
BR7702233A true BR7702233A (en) 1977-12-13

Family

ID=19826003

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7702233A BR7702233A (en) 1976-04-12 1977-04-06 ROCK DRILLING DRILL

Country Status (12)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2755591C2 (en) * 1977-12-14 1985-11-07 SKF GmbH, 8720 Schweinfurt Roller chisel with conical cutting rollers
DE2824202A1 (en) * 1978-06-02 1979-12-06 Sandvik Gmbh Conical cutter roller chisel for mine working - has conical roller bearing force lines converging towards cutting roller tips

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 (en) * 1952-04-02 1954-02-02 Materiel De Forage Soc De Fab Mounting device for knurled tools
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 (en) 1975-02-17 1986-07-16 Skf Ind Trading & Dev ROTARY DRILL CHUCK.
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
JPS5936076B2 (en) 1984-09-01
FR2348358A1 (en) 1977-11-10
DE2715788A1 (en) 1977-10-20
AU514631B2 (en) 1981-02-19
ZA772203B (en) 1978-03-29
JPS52145302A (en) 1977-12-03
AU2359777A (en) 1978-09-28
NO771246L (en) 1977-10-13
FR2348358B3 (en) 1980-01-18
NL179409B (en) 1986-04-01
NL179409C (en) 1986-09-01
NL7603835A (en) 1977-10-14
SE7703246L (en) 1977-10-13
IT1076714B (en) 1985-04-27
SE433958B (en) 1984-06-25
GB1563533A (en) 1980-03-26
CA1064014A (en) 1979-10-09
DE2715788C2 (en) 1986-06-26

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