JPS62172793U - - Google Patents
Info
- Publication number
- JPS62172793U JPS62172793U JP5341886U JP5341886U JPS62172793U JP S62172793 U JPS62172793 U JP S62172793U JP 5341886 U JP5341886 U JP 5341886U JP 5341886 U JP5341886 U JP 5341886U JP S62172793 U JPS62172793 U JP S62172793U
- Authority
- JP
- Japan
- Prior art keywords
- passage
- rotating body
- air
- swivel device
- fluid passages
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims 6
- 238000009412 basement excavation Methods 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 239000003566 sealing material Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5341886U JPH0455111Y2 (fr) | 1986-04-09 | 1986-04-09 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5341886U JPH0455111Y2 (fr) | 1986-04-09 | 1986-04-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS62172793U true JPS62172793U (fr) | 1987-11-02 |
JPH0455111Y2 JPH0455111Y2 (fr) | 1992-12-24 |
Family
ID=30879463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5341886U Expired JPH0455111Y2 (fr) | 1986-04-09 | 1986-04-09 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0455111Y2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01151689A (ja) * | 1987-12-08 | 1989-06-14 | Takechi Komusho Kk | 掘孔方法 |
-
1986
- 1986-04-09 JP JP5341886U patent/JPH0455111Y2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01151689A (ja) * | 1987-12-08 | 1989-06-14 | Takechi Komusho Kk | 掘孔方法 |
Also Published As
Publication number | Publication date |
---|---|
JPH0455111Y2 (fr) | 1992-12-24 |
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