EP0004674A3 - Bohrkrone für die Herstellung von Bohrungen in Erdreich und Gestein - Google Patents
Bohrkrone für die Herstellung von Bohrungen in Erdreich und Gestein Download PDFInfo
- Publication number
- EP0004674A3 EP0004674A3 EP79101061A EP79101061A EP0004674A3 EP 0004674 A3 EP0004674 A3 EP 0004674A3 EP 79101061 A EP79101061 A EP 79101061A EP 79101061 A EP79101061 A EP 79101061A EP 0004674 A3 EP0004674 A3 EP 0004674A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill bit
- jaws
- rock
- earth
- bore holes
- 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.)
- Withdrawn
Links
- 239000011435 rock Substances 0.000 title abstract 2
- 238000005553 drilling Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
-
- 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
- E21B10/36—Percussion drill bits
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
Die Bohrkrone (4) für schlagendes und/oder drehendes
Bohren weist an einem Grundkörper (5) angelenkte schwenkbare
Backen (6, 7) mit Arbeitsflächen (9, 10) auf. Die
schwenkbaren Backen (6, 7) sind so gelagert, daß der
Schwerpunkt der Stirnflächen (11, 12) der Backen (6, 7) in der
eingeschwenkten Ausgangsstellung in Achsrichtung der
Bohrkrone (4) gesehen zwischen der Anlenkstelle der jeweiligen
Backe (6, 7) und dem äußeren Rand derselben liegt, so
daß die Backen (6, 7) durch den Gegendruck im Erdreich oder
Gestein in ihre Arbeitsstellung verschwenkt werden, in
welcher sie über den Umfang des Grundkörpers (5) bzw. die
Umhüllende der eingeschwenkten Ausgangsstellung der
Backen (6, 7) vorragen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT243578A AT354960B (de) | 1978-04-06 | 1978-04-06 | Bohrkrone fuer die herstellung von bohrungen in erdreich oder gestein |
AT2435/78 | 1978-04-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0004674A2 EP0004674A2 (de) | 1979-10-17 |
EP0004674A3 true EP0004674A3 (de) | 1979-10-31 |
Family
ID=3534299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79101061A Withdrawn EP0004674A3 (de) | 1978-04-06 | 1979-04-06 | Bohrkrone für die Herstellung von Bohrungen in Erdreich und Gestein |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0004674A3 (de) |
AT (1) | AT354960B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0358786A1 (de) * | 1988-09-13 | 1990-03-21 | Ing. G. Klemm Bohrtechnik GmbH | Überlagerungsbohrvorrichtung |
DE102014104516A1 (de) * | 2014-03-31 | 2015-10-01 | Sysbohr Gmbh - Bohrtechnik Für Den Spezialtiefbau | Bohrkrone, insbesondere zum Überlagerungsbohren, sowie Bohrvorrichtung mit einer Bohrkrone |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3971C (de) * | H. GÖTZE, Schlossermeister, in Neumünster in Holstein | Erdbohrer | ||
DE39674C (de) * | A. FAUCK und E. HASENÖRL in Wien | Freifallbohrer für Tiefbohrungen | ||
FR505941A (fr) * | 1918-11-12 | 1920-08-10 | Chas L Stickney | Perfectionnements aux dispositifs de forage |
US1428774A (en) * | 1921-09-19 | 1922-09-12 | William R Gardner | Fishtail bit |
GB297285A (en) * | 1928-03-02 | 1928-09-20 | Colon Dev Co | Improvements in well-boring apparatus |
US1733452A (en) * | 1926-12-13 | 1929-10-29 | John W Doody | Underreamer |
GB540027A (en) * | 1940-04-26 | 1941-10-02 | Percy Cox | Improvements in and relating to rock boring and like tools |
US2397652A (en) * | 1944-02-03 | 1946-04-02 | Jr Woyman B Dunlap | Underreamer |
DE830033C (de) * | 1950-01-15 | 1952-01-31 | Guenther Fluegge Dr Ing | Bohrmeissel |
US2599167A (en) * | 1946-02-23 | 1952-06-03 | Dionisotti Joseph | Scraping out device for mining boreholes |
FR2171290A1 (de) * | 1972-02-10 | 1973-09-21 | Atlas Copco Ab | |
FR2274780A1 (fr) * | 1974-06-12 | 1976-01-09 | Ugine Aciers | Taillants a boutons pour perforation au rocher au moyen d'un marteau fond de trou a soufflage lateral |
-
1978
- 1978-04-06 AT AT243578A patent/AT354960B/de not_active IP Right Cessation
-
1979
- 1979-04-06 EP EP79101061A patent/EP0004674A3/de not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3971C (de) * | H. GÖTZE, Schlossermeister, in Neumünster in Holstein | Erdbohrer | ||
DE39674C (de) * | A. FAUCK und E. HASENÖRL in Wien | Freifallbohrer für Tiefbohrungen | ||
FR505941A (fr) * | 1918-11-12 | 1920-08-10 | Chas L Stickney | Perfectionnements aux dispositifs de forage |
US1428774A (en) * | 1921-09-19 | 1922-09-12 | William R Gardner | Fishtail bit |
US1733452A (en) * | 1926-12-13 | 1929-10-29 | John W Doody | Underreamer |
GB297285A (en) * | 1928-03-02 | 1928-09-20 | Colon Dev Co | Improvements in well-boring apparatus |
GB540027A (en) * | 1940-04-26 | 1941-10-02 | Percy Cox | Improvements in and relating to rock boring and like tools |
US2397652A (en) * | 1944-02-03 | 1946-04-02 | Jr Woyman B Dunlap | Underreamer |
US2599167A (en) * | 1946-02-23 | 1952-06-03 | Dionisotti Joseph | Scraping out device for mining boreholes |
DE830033C (de) * | 1950-01-15 | 1952-01-31 | Guenther Fluegge Dr Ing | Bohrmeissel |
FR2171290A1 (de) * | 1972-02-10 | 1973-09-21 | Atlas Copco Ab | |
FR2274780A1 (fr) * | 1974-06-12 | 1976-01-09 | Ugine Aciers | Taillants a boutons pour perforation au rocher au moyen d'un marteau fond de trou a soufflage lateral |
Also Published As
Publication number | Publication date |
---|---|
AT354960B (de) | 1980-02-11 |
ATA243578A (de) | 1979-07-15 |
EP0004674A2 (de) | 1979-10-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Designated state(s): BE CH DE FR GB IT LU NL SE |
|
AK | Designated contracting states |
Designated state(s): BE CH DE FR GB IT LU NL SE |
|
17P | Request for examination filed | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19810205 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SULZER,JOSEF |