BE441647A - - Google Patents
Info
- Publication number
- BE441647A BE441647A BE441647DA BE441647A BE 441647 A BE441647 A BE 441647A BE 441647D A BE441647D A BE 441647DA BE 441647 A BE441647 A BE 441647A
- Authority
- BE
- Belgium
- Prior art keywords
- foil
- hammer
- cap
- piston
- grooves
- Prior art date
Links
- 239000011888 foil Substances 0.000 claims description 39
- 239000011324 bead Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 11
- 239000011707 mineral Substances 0.000 description 11
- 239000003245 coal Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- B25D9/08—Means for driving the impulse member comprising a built-in air compressor, i.e. the tool being driven by air pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE441647A true BE441647A (OSRAM) |
Family
ID=99082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE441647D BE441647A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE441647A (OSRAM) |
-
0
- BE BE441647D patent/BE441647A/fr unknown
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