FR2412392A1 - Fleuret a roches - Google Patents

Fleuret a roches

Info

Publication number
FR2412392A1
FR2412392A1 FR7834860A FR7834860A FR2412392A1 FR 2412392 A1 FR2412392 A1 FR 2412392A1 FR 7834860 A FR7834860 A FR 7834860A FR 7834860 A FR7834860 A FR 7834860A FR 2412392 A1 FR2412392 A1 FR 2412392A1
Authority
FR
France
Prior art keywords
cutting
wings
height
flower
cutting head
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7834860A
Other languages
English (en)
French (fr)
Other versions
FR2412392B1 (de
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of FR2412392A1 publication Critical patent/FR2412392A1/fr
Application granted granted Critical
Publication of FR2412392B1 publication Critical patent/FR2412392B1/fr
Granted legal-status Critical Current

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
FR7834860A 1977-12-21 1978-12-12 Fleuret a roches Granted FR2412392A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2756990A DE2756990C2 (de) 1977-12-21 1977-12-21 Gesteinsbohrer

Publications (2)

Publication Number Publication Date
FR2412392A1 true FR2412392A1 (fr) 1979-07-20
FR2412392B1 FR2412392B1 (de) 1984-09-28

Family

ID=6026722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7834860A Granted FR2412392A1 (fr) 1977-12-21 1978-12-12 Fleuret a roches

Country Status (5)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856205A1 (de) * 1978-12-27 1980-07-10 Hilti Ag Gesteinsbohrer
SE459680B (sv) * 1984-10-01 1989-07-24 Santrade Ltd Borrstaal
DE4102794A1 (de) * 1991-01-31 1992-08-06 Hawera Probst Kg Hartmetall Bohrwerkzeug
DE4236553A1 (de) * 1992-10-29 1994-05-05 Hawera Probst Kg Hartmetall Gesteinsbohrer
DE4407119A1 (de) * 1993-12-11 1995-06-14 Hawera Probst Kg Hartmetall Gesteinsbohrer
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 (de) 2014-08-25 2017-05-03 Sandvik Intellectual Property AB Bohrmeißel mit versenkter Schneidefläche
CN108104723B (zh) * 2018-02-11 2023-11-03 上海广大基础工程有限公司 一种钻具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1154010A (fr) * 1955-06-17 1958-04-01 Hellefors Bruks Aktiebolag Perfectionnements aux foreuses au rocher
FR1219604A (fr) * 1958-04-01 1960-05-18 Uddeholms Ab Couronne de fleuret à percussion
DE2035261A1 (de) * 1970-07-16 1972-01-27 Karnebogen, Richard 5891 Vollme Schlagbohrkrone zum Bohren von Gestein u dgl
FR2206415A1 (de) * 1972-11-15 1974-06-07 Boehler & Co Ag Geb
FR2271000A1 (en) * 1974-05-15 1975-12-12 Krupp Gmbh Masonry drill with centring bit - hardmetal studs on cutting face and bit face, angled at diameter rims
US3955635A (en) * 1975-02-03 1976-05-11 Skidmore Sam C Percussion drill bit
FR2315602A1 (fr) * 1975-06-24 1977-01-21 Krupp Gmbh Foret a roches
DE2602238A1 (de) * 1976-01-22 1977-08-04 Bosch Gmbh Robert Bohrkrone

Family Cites Families (4)

* 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
US3074703A (en) * 1960-02-24 1963-01-22 Salem Tool Co Lump producing head for coal augering
DE2129913A1 (de) * 1971-06-16 1972-12-21 Hilti Ag Gesteinsbohrer
DE2414354A1 (de) * 1974-03-26 1975-10-16 Heller Geb Gesteinsbohrer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1154010A (fr) * 1955-06-17 1958-04-01 Hellefors Bruks Aktiebolag Perfectionnements aux foreuses au rocher
FR1219604A (fr) * 1958-04-01 1960-05-18 Uddeholms Ab Couronne de fleuret à percussion
DE2035261A1 (de) * 1970-07-16 1972-01-27 Karnebogen, Richard 5891 Vollme Schlagbohrkrone zum Bohren von Gestein u dgl
FR2206415A1 (de) * 1972-11-15 1974-06-07 Boehler & Co Ag Geb
FR2271000A1 (en) * 1974-05-15 1975-12-12 Krupp Gmbh Masonry drill with centring bit - hardmetal studs on cutting face and bit face, angled at diameter rims
US3955635A (en) * 1975-02-03 1976-05-11 Skidmore Sam C Percussion drill bit
FR2315602A1 (fr) * 1975-06-24 1977-01-21 Krupp Gmbh Foret a roches
DE2602238A1 (de) * 1976-01-22 1977-08-04 Bosch Gmbh Robert Bohrkrone

Also Published As

Publication number Publication date
DE2756990C2 (de) 1986-03-27
SE7812674L (sv) 1979-06-22
GB2011286A (en) 1979-07-11
DE2756990A1 (de) 1979-06-28
FR2412392B1 (de) 1984-09-28
GB2011286B (en) 1982-02-24
SE429888B (sv) 1983-10-03
ATA898878A (de) 1980-08-15
AT383182B (de) 1987-05-25

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Legal Events

Date Code Title Description
ST Notification of lapse