FR2412392A1 - Fleuret a roches - Google Patents
Fleuret a rochesInfo
- 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
Links
- 239000002184 metal Substances 0.000 abstract 3
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)
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 (sv) | 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 (sv) |
DE (1) | DE2756990C2 (sv) |
FR (1) | FR2412392A1 (sv) |
GB (1) | GB2011286B (sv) |
SE (1) | SE429888B (sv) |
Families Citing this family (9)
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 |
AU1542601A (en) * | 1999-11-26 | 2001-06-04 | 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 (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)
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 (sv) * | 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)
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 |
-
1977
- 1977-12-21 DE DE2756990A patent/DE2756990C2/de not_active Expired
-
1978
- 1978-12-08 SE SE7812674A patent/SE429888B/sv not_active IP Right Cessation
- 1978-12-12 FR FR7834860A patent/FR2412392A1/fr active Granted
- 1978-12-15 AT AT0898878A patent/AT383182B/de active
- 1978-12-18 GB GB7848917A patent/GB2011286B/en not_active Expired
Patent Citations (8)
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 (sv) * | 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 |
---|---|
GB2011286A (en) | 1979-07-11 |
DE2756990A1 (de) | 1979-06-28 |
SE429888B (sv) | 1983-10-03 |
GB2011286B (en) | 1982-02-24 |
FR2412392B1 (sv) | 1984-09-28 |
AT383182B (de) | 1987-05-25 |
ATA898878A (de) | 1980-08-15 |
DE2756990C2 (de) | 1986-03-27 |
SE7812674L (sv) | 1979-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |