BE496755A - - Google Patents
Info
- Publication number
- BE496755A BE496755A BE496755DA BE496755A BE 496755 A BE496755 A BE 496755A BE 496755D A BE496755D A BE 496755DA BE 496755 A BE496755 A BE 496755A
- Authority
- BE
- Belgium
- Prior art keywords
- bladder
- prop
- wall
- strut
- pump
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
- E21D15/445—Hydraulic, pneumatic, or hydraulic-pneumatic props comprising a fluid cushion
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE496755A true BE496755A (enrdf_load_stackoverflow) |
Family
ID=139888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE496755D BE496755A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE496755A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995034743A1 (en) * | 1994-06-13 | 1995-12-21 | Contitech Luftfedersysteme Gmbh | Mine prop |
-
0
- BE BE496755D patent/BE496755A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995034743A1 (en) * | 1994-06-13 | 1995-12-21 | Contitech Luftfedersysteme Gmbh | Mine prop |
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