JPS61125585U - - Google Patents
Info
- Publication number
- JPS61125585U JPS61125585U JP797385U JP797385U JPS61125585U JP S61125585 U JPS61125585 U JP S61125585U JP 797385 U JP797385 U JP 797385U JP 797385 U JP797385 U JP 797385U JP S61125585 U JPS61125585 U JP S61125585U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- mechanical seal
- umbrella
- rotating body
- protrudes
- 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
- 238000005553 drilling Methods 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 description 2
Landscapes
- Earth Drilling (AREA)
- Mechanical Sealing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP797385U JPH0211516Y2 (cs) | 1985-01-25 | 1985-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP797385U JPH0211516Y2 (cs) | 1985-01-25 | 1985-01-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61125585U true JPS61125585U (cs) | 1986-08-07 |
| JPH0211516Y2 JPH0211516Y2 (cs) | 1990-03-23 |
Family
ID=30486824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP797385U Expired JPH0211516Y2 (cs) | 1985-01-25 | 1985-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0211516Y2 (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01322086A (ja) * | 1988-06-23 | 1989-12-27 | Shiomigumi:Kk | アースオーガ装置に使用する掘削ヘッド |
-
1985
- 1985-01-25 JP JP797385U patent/JPH0211516Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01322086A (ja) * | 1988-06-23 | 1989-12-27 | Shiomigumi:Kk | アースオーガ装置に使用する掘削ヘッド |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0211516Y2 (cs) | 1990-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH05280273A (ja) | ラウンドピックおよび掘削工具 | |
| EP0872625A3 (en) | Rotary drill bits with nozzles | |
| JPS61125585U (cs) | ||
| US2587429A (en) | Drag bit | |
| US7278500B2 (en) | Roller cutter | |
| JPS63179013U (cs) | ||
| JP2595029Y2 (ja) | さく孔用リングビツト | |
| JPH0197848U (cs) | ||
| JPH0338319Y2 (cs) | ||
| SU389247A1 (cs) | ||
| JPS6410590U (cs) | ||
| JPS5859893U (ja) | シ−ルド掘進機の排土装置 | |
| JPH053587Y2 (cs) | ||
| JPS627314U (cs) | ||
| JPS64467Y2 (cs) | ||
| JPS6346539Y2 (cs) | ||
| JPS5876695U (ja) | 横坑掘削装置 | |
| JPH0262168U (cs) | ||
| JPS6126796U (ja) | 埋設管推進装置の掘削ヘツド | |
| JPS6197493U (cs) | ||
| JPS61148965U (cs) | ||
| JPS5836018U (ja) | 深穴切削用ドリル | |
| JPS5845799U (ja) | シ−ルド掘進機のロ−タリフイ−ダ | |
| JPS63198698U (cs) | ||
| JPS63192008U (cs) |