JPH0376089U - - Google Patents
Info
- Publication number
- JPH0376089U JPH0376089U JP13615489U JP13615489U JPH0376089U JP H0376089 U JPH0376089 U JP H0376089U JP 13615489 U JP13615489 U JP 13615489U JP 13615489 U JP13615489 U JP 13615489U JP H0376089 U JPH0376089 U JP H0376089U
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- adapter
- cylinder
- annular groove
- tip
- 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 description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 3
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13615489U JPH0750470Y2 (ja) | 1989-11-25 | 1989-11-25 | 回転穿孔具 |
DE69007241T DE69007241T2 (de) | 1989-11-25 | 1990-11-20 | Hohlbohrer. |
EP90312600A EP0430536B1 (en) | 1989-11-25 | 1990-11-20 | Drill |
US07/616,318 US5092716A (en) | 1989-11-25 | 1990-11-21 | Drill and method for using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13615489U JPH0750470Y2 (ja) | 1989-11-25 | 1989-11-25 | 回転穿孔具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0376089U true JPH0376089U (nl) | 1991-07-30 |
JPH0750470Y2 JPH0750470Y2 (ja) | 1995-11-15 |
Family
ID=31683378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13615489U Expired - Lifetime JPH0750470Y2 (ja) | 1989-11-25 | 1989-11-25 | 回転穿孔具 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0750470Y2 (nl) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114135234A (zh) * | 2021-12-13 | 2022-03-04 | 河南黄河旋风股份有限公司 | 自适应收放水管的钻进系统 |
-
1989
- 1989-11-25 JP JP13615489U patent/JPH0750470Y2/ja not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114135234A (zh) * | 2021-12-13 | 2022-03-04 | 河南黄河旋风股份有限公司 | 自适应收放水管的钻进系统 |
CN114135234B (zh) * | 2021-12-13 | 2022-08-16 | 河南黄河旋风股份有限公司 | 自适应收放水管的钻进系统 |
Also Published As
Publication number | Publication date |
---|---|
JPH0750470Y2 (ja) | 1995-11-15 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |