BE520675A - - Google Patents
Info
- Publication number
- BE520675A BE520675A BE520675DA BE520675A BE 520675 A BE520675 A BE 520675A BE 520675D A BE520675D A BE 520675DA BE 520675 A BE520675 A BE 520675A
- Authority
- BE
- Belgium
- Prior art keywords
- teeth
- upright
- bearing
- pad
- housing
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 230000000284 resting effect Effects 0.000 claims description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation 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
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction
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)
- Sliding-Contact Bearings (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE520675A true BE520675A (enExample) |
Family
ID=156473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE520675D BE520675A (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE520675A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5836620A (en) * | 1996-09-10 | 1998-11-17 | Kinergy Industrial Co., Ltd. | Telescopic extension wand for vacuum cleaner |
-
0
- BE BE520675D patent/BE520675A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5836620A (en) * | 1996-09-10 | 1998-11-17 | Kinergy Industrial Co., Ltd. | Telescopic extension wand for vacuum cleaner |
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