BE482965A - - Google Patents
Info
- Publication number
- BE482965A BE482965A BE482965DA BE482965A BE 482965 A BE482965 A BE 482965A BE 482965D A BE482965D A BE 482965DA BE 482965 A BE482965 A BE 482965A
- Authority
- BE
- Belgium
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
- B25D9/14—Control devices for the reciprocating piston
- B25D9/16—Valve arrangements therefor
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE560442X | 1942-01-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE482965A true BE482965A (en(2012)) |
Family
ID=20312010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE482965D BE482965A (en(2012)) | 1942-01-15 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE482965A (en(2012)) |
| GB (1) | GB560442A (en(2012)) |
-
0
- BE BE482965D patent/BE482965A/xx unknown
-
1943
- 1943-01-04 GB GB152/43A patent/GB560442A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB560442A (en) | 1944-04-04 |