NL7215685A - - Google Patents
Info
- Publication number
- NL7215685A NL7215685A NL7215685A NL7215685A NL7215685A NL 7215685 A NL7215685 A NL 7215685A NL 7215685 A NL7215685 A NL 7215685A NL 7215685 A NL7215685 A NL 7215685A NL 7215685 A NL7215685 A NL 7215685A
- Authority
- NL
- Netherlands
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/06—Means for driving the impulse member
- B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/14—Control devices for the reciprocating piston
- B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
-
- 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
- E21B1/00—Percussion drilling
- E21B1/36—Tool-carrier piston type, i.e. in which the tool is connected to an impulse member
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1841371A CH540425A (de) | 1971-12-17 | 1971-12-17 | Schlag- oder Schlagbohrhammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7215685A true NL7215685A (en:Method) | 1973-06-19 |
Family
ID=4432819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7215685A NL7215685A (en:Method) | 1971-12-17 | 1972-11-20 |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS4867101A (en:Method) |
| AU (1) | AU5015672A (en:Method) |
| BE (1) | BE791962A (en:Method) |
| CH (1) | CH540425A (en:Method) |
| DE (1) | DE2253273A1 (en:Method) |
| ES (1) | ES410229A1 (en:Method) |
| FR (1) | FR2165470A5 (en:Method) |
| IT (1) | IT971733B (en:Method) |
| NL (1) | NL7215685A (en:Method) |
| ZA (1) | ZA728781B (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995700A (en) * | 1975-10-14 | 1976-12-07 | Gardner-Denver Company | Hydraulic rock drill system |
| JPS5910237Y2 (ja) * | 1976-06-07 | 1984-03-30 | 古河鉱業株式会社 | 坑内用大形さく岩機 |
-
0
- BE BE791962D patent/BE791962A/xx unknown
-
1971
- 1971-12-17 CH CH1841371A patent/CH540425A/de not_active IP Right Cessation
-
1972
- 1972-09-30 JP JP47098584A patent/JPS4867101A/ja active Pending
- 1972-10-31 DE DE2253273A patent/DE2253273A1/de active Pending
- 1972-11-20 NL NL7215685A patent/NL7215685A/xx unknown
- 1972-12-11 FR FR7244033A patent/FR2165470A5/fr not_active Expired
- 1972-12-12 IT IT32750/72A patent/IT971733B/it active
- 1972-12-12 ZA ZA728781A patent/ZA728781B/xx unknown
- 1972-12-15 AU AU50156/72A patent/AU5015672A/en not_active Expired
- 1972-12-16 ES ES410229A patent/ES410229A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT971733B (it) | 1974-05-10 |
| DE2253273A1 (de) | 1973-06-28 |
| BE791962A (fr) | 1973-03-16 |
| ES410229A1 (es) | 1975-12-01 |
| CH540425A (de) | 1973-08-15 |
| AU5015672A (en) | 1974-06-20 |
| FR2165470A5 (en:Method) | 1973-08-03 |
| ZA728781B (en) | 1973-08-29 |
| JPS4867101A (en:Method) | 1973-09-13 |