JPS63185897U - - Google Patents
Info
- Publication number
- JPS63185897U JPS63185897U JP572888U JP572888U JPS63185897U JP S63185897 U JPS63185897 U JP S63185897U JP 572888 U JP572888 U JP 572888U JP 572888 U JP572888 U JP 572888U JP S63185897 U JPS63185897 U JP S63185897U
- Authority
- JP
- Japan
- Prior art keywords
- drilling
- switching valve
- opening
- collapse
- drilling machine
- 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.)
- Pending
Links
- 238000005553 drilling Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 235000014036 Castanea Nutrition 0.000 description 1
- 241001070941 Castanea Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP572888U JPS63185897U (fr) | 1988-01-19 | 1988-01-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP572888U JPS63185897U (fr) | 1988-01-19 | 1988-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63185897U true JPS63185897U (fr) | 1988-11-29 |
Family
ID=30787586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP572888U Pending JPS63185897U (fr) | 1988-01-19 | 1988-01-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63185897U (fr) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5217301B1 (fr) * | 1971-05-08 | 1977-05-14 | ||
| JPS5526657B2 (fr) * | 1974-01-17 | 1980-07-15 | ||
| JPS568694B2 (fr) * | 1977-03-25 | 1981-02-25 |
-
1988
- 1988-01-19 JP JP572888U patent/JPS63185897U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5217301B1 (fr) * | 1971-05-08 | 1977-05-14 | ||
| JPS5526657B2 (fr) * | 1974-01-17 | 1980-07-15 | ||
| JPS568694B2 (fr) * | 1977-03-25 | 1981-02-25 |