DE3851953D1 - Hohlbohrer. - Google Patents
Hohlbohrer.Info
- Publication number
- DE3851953D1 DE3851953D1 DE3851953T DE3851953T DE3851953D1 DE 3851953 D1 DE3851953 D1 DE 3851953D1 DE 3851953 T DE3851953 T DE 3851953T DE 3851953 T DE3851953 T DE 3851953T DE 3851953 D1 DE3851953 D1 DE 3851953D1
- Authority
- DE
- Germany
- Prior art keywords
- hollow drill
- drill
- hollow
- 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.)
- Expired - Lifetime
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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19880111338 EP0350526B1 (de) | 1988-07-14 | 1988-07-14 | Hohlbohrer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3851953D1 true DE3851953D1 (de) | 1994-12-01 |
Family
ID=8199119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3851953T Expired - Lifetime DE3851953D1 (de) | 1988-07-14 | 1988-07-14 | Hohlbohrer. |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0350526B1 (de) |
DE (1) | DE3851953D1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5318338B2 (ja) * | 2006-08-10 | 2013-10-16 | マックス株式会社 | ノンコアドリルビット |
DE102013106612A1 (de) * | 2013-06-25 | 2015-01-08 | Schott Ag | Werkzeugkrone und mit der Werkzeugkrone herstellbares Glaskeramik-Erzeugnis |
EP3129576A4 (de) * | 2014-04-07 | 2018-03-07 | Longyear TM, Inc. | Bohrmeissel mit einzelnem wasserweg und system zur verwendung davon |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR431787A (fr) * | 1911-06-30 | 1911-11-20 | Edmond Victor Jeanmaire | Perforatrice pour mines, carrières et autres similaires |
DE695618C (de) * | 1935-10-08 | 1940-08-29 | Paul Klee | Das gleichzeitige Herstellen einer Vielzahl von aus einem Stueck bestehenden und biszu etwa 7m langen, walzen- und roehrenfoermigen Koerpern aus Naturhartgestein oder sonstigen Hartstoffen |
US2731236A (en) * | 1953-10-05 | 1956-01-17 | Bruce Floyd | Diamond drill bit |
CH504266A (de) * | 1970-06-26 | 1971-03-15 | Uk Ni Kt I Sint Sverkhtverdykh | Diamanthohlbohrer |
SU682379A2 (ru) * | 1974-12-12 | 1979-08-30 | Ордена Трудового Красного Знамени Институт Сверхтвердых Материалов Ан Украинской Сср | Инструмент дл изготовлени мелких отверстий в твердых и хрупких материалах |
-
1988
- 1988-07-14 EP EP19880111338 patent/EP0350526B1/de not_active Expired - Lifetime
- 1988-07-14 DE DE3851953T patent/DE3851953D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0350526B1 (de) | 1994-10-26 |
EP0350526A1 (de) | 1990-01-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8332 | No legal effect for de |