BE498234A - - Google Patents
Info
- Publication number
- BE498234A BE498234A BE498234DA BE498234A BE 498234 A BE498234 A BE 498234A BE 498234D A BE498234D A BE 498234DA BE 498234 A BE498234 A BE 498234A
- Authority
- BE
- Belgium
- Prior art keywords
- valve
- prop
- buffer
- pressure chamber
- elastic
- Prior art date
Links
- 239000007788 liquid Substances 0.000 claims description 32
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 210000002445 nipple Anatomy 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 101100005038 Penicillium decumbens calJ gene Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
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)
- Safety Valves (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE498234A true BE498234A (cs) |
Family
ID=140973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE498234D BE498234A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE498234A (cs) |
-
0
- BE BE498234D patent/BE498234A/fr unknown
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