CH220151A - Drilling machine. - Google Patents
Drilling machine.Info
- Publication number
- CH220151A CH220151A CH220151DA CH220151A CH 220151 A CH220151 A CH 220151A CH 220151D A CH220151D A CH 220151DA CH 220151 A CH220151 A CH 220151A
- Authority
- CH
- Switzerland
- Prior art keywords
- drilling machine
- drilling
- machine
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title 1
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
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE220151X | 1940-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH220151A true CH220151A (en) | 1942-03-31 |
Family
ID=5832914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH220151D CH220151A (en) | 1940-03-27 | 1941-03-24 | Drilling machine. |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE441002A (en) |
CH (1) | CH220151A (en) |
FR (1) | FR871080A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE924202C (en) * | 1952-10-26 | 1955-02-28 | Friedrich Heinrich Flottmann F | Hammer drill |
-
0
- BE BE441002D patent/BE441002A/xx unknown
-
1941
- 1941-03-24 CH CH220151D patent/CH220151A/en unknown
- 1941-03-26 FR FR871080D patent/FR871080A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE924202C (en) * | 1952-10-26 | 1955-02-28 | Friedrich Heinrich Flottmann F | Hammer drill |
Also Published As
Publication number | Publication date |
---|---|
FR871080A (en) | 1942-04-07 |
BE441002A (en) |
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