JPH057352Y2 - - Google Patents
Info
- Publication number
- JPH057352Y2 JPH057352Y2 JP1648287U JP1648287U JPH057352Y2 JP H057352 Y2 JPH057352 Y2 JP H057352Y2 JP 1648287 U JP1648287 U JP 1648287U JP 1648287 U JP1648287 U JP 1648287U JP H057352 Y2 JPH057352 Y2 JP H057352Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- pilot
- line
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009412 basement excavation Methods 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 5
- 239000002689 soil Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1648287U JPH057352Y2 (en]) | 1987-02-06 | 1987-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1648287U JPH057352Y2 (en]) | 1987-02-06 | 1987-02-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63126487U JPS63126487U (en]) | 1988-08-18 |
| JPH057352Y2 true JPH057352Y2 (en]) | 1993-02-24 |
Family
ID=30808377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1648287U Expired - Lifetime JPH057352Y2 (en]) | 1987-02-06 | 1987-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH057352Y2 (en]) |
-
1987
- 1987-02-06 JP JP1648287U patent/JPH057352Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63126487U (en]) | 1988-08-18 |
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