SE7812674L - BERGBORR - Google Patents

BERGBORR

Info

Publication number
SE7812674L
SE7812674L SE7812674A SE7812674A SE7812674L SE 7812674 L SE7812674 L SE 7812674L SE 7812674 A SE7812674 A SE 7812674A SE 7812674 A SE7812674 A SE 7812674A SE 7812674 L SE7812674 L SE 7812674L
Authority
SE
Sweden
Prior art keywords
bergborr
Prior art date
Application number
SE7812674A
Other languages
Swedish (sv)
Other versions
SE429888B (en
Inventor
H Pietsch
K Steinkuhler
Original Assignee
Krupp Gmbh
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 Krupp Gmbh filed Critical Krupp Gmbh
Publication of SE7812674L publication Critical patent/SE7812674L/en
Publication of SE429888B publication Critical patent/SE429888B/en

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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • 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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
SE7812674A 1977-12-21 1978-12-08 MOUNTAIN DRILL WITH PROJECT DRILL HEAD SE429888B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2756990A DE2756990C2 (en) 1977-12-21 1977-12-21 Rock drill

Publications (2)

Publication Number Publication Date
SE7812674L true SE7812674L (en) 1979-06-22
SE429888B SE429888B (en) 1983-10-03

Family

ID=6026722

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7812674A SE429888B (en) 1977-12-21 1978-12-08 MOUNTAIN DRILL WITH PROJECT DRILL HEAD

Country Status (5)

Country Link
AT (1) AT383182B (en)
DE (1) DE2756990C2 (en)
FR (1) FR2412392A1 (en)
GB (1) GB2011286B (en)
SE (1) SE429888B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856205A1 (en) * 1978-12-27 1980-07-10 Hilti Ag Rock drill head assembly - has protruding steel insets in ring segments with axial grooves and central recess
SE459680B (en) * 1984-10-01 1989-07-24 Santrade Ltd BORRSTAAL
DE4102794A1 (en) * 1991-01-31 1992-08-06 Hawera Probst Kg Hartmetall Drill bit for hammer drill - has radial arms of zig-zag contour, fitted with hard metal tips
DE4236553A1 (en) * 1992-10-29 1994-05-05 Hawera Probst Kg Hartmetall Rock drill
DE4407119A1 (en) * 1993-12-11 1995-06-14 Hawera Probst Kg Hartmetall Rock drill
WO2001038684A1 (en) * 1999-11-26 2001-05-31 Anglo Operations Limited Rotary drill bit insert
GB2479146A (en) * 2010-03-30 2011-10-05 Paul James Bentley Hole cutter
EP2990589B1 (en) 2014-08-25 2017-05-03 Sandvik Intellectual Property AB Drill bit with recessed cutting face
CN108104723B (en) * 2018-02-11 2023-11-03 上海广大基础工程有限公司 Drilling tool

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1809351A (en) * 1929-06-26 1931-06-09 Roland R Crum Drilling bit
FR1154010A (en) * 1955-06-17 1958-04-01 Hellefors Bruks Aktiebolag Rock drill rigs
FR1219604A (en) * 1958-04-01 1960-05-18 Uddeholms Ab Percussion foil crown
US3074703A (en) * 1960-02-24 1963-01-22 Salem Tool Co Lump producing head for coal augering
DE2035261A1 (en) * 1970-07-16 1972-01-27 Karnebogen, Richard 5891 Vollme Impact drill bit for drilling rock and the like
DE2129913A1 (en) * 1971-06-16 1972-12-21 Hilti Ag Rock drill
AT321207B (en) * 1972-11-15 1975-03-25 Boehler & Co Ag Geb Drilling method and device for its implementation
DE2414354A1 (en) * 1974-03-26 1975-10-16 Heller Geb ROCK DRILLS
DE2423510A1 (en) * 1974-05-15 1975-11-27 Krupp Gmbh ROCK DRILLS
US3955635A (en) * 1975-02-03 1976-05-11 Skidmore Sam C Percussion drill bit
DE2528003A1 (en) * 1975-06-24 1977-01-20 Krupp Gmbh ROCK DRILLS
DE2602238A1 (en) * 1976-01-22 1977-08-04 Bosch Gmbh Robert DRILL BIT

Also Published As

Publication number Publication date
AT383182B (en) 1987-05-25
FR2412392B1 (en) 1984-09-28
SE429888B (en) 1983-10-03
DE2756990A1 (en) 1979-06-28
GB2011286B (en) 1982-02-24
FR2412392A1 (en) 1979-07-20
GB2011286A (en) 1979-07-11
DE2756990C2 (en) 1986-03-27
ATA898878A (en) 1980-08-15

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