JPH0220137U - - Google Patents
Info
- Publication number
- JPH0220137U JPH0220137U JP9737988U JP9737988U JPH0220137U JP H0220137 U JPH0220137 U JP H0220137U JP 9737988 U JP9737988 U JP 9737988U JP 9737988 U JP9737988 U JP 9737988U JP H0220137 U JPH0220137 U JP H0220137U
- Authority
- JP
- Japan
- Prior art keywords
- stopper
- hose
- main body
- sealing air
- expands
- 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
- 238000007789 sealing Methods 0.000 claims description 5
- 238000011056 performance test Methods 0.000 claims 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9737988U JPH0220137U (no) | 1988-07-25 | 1988-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9737988U JPH0220137U (no) | 1988-07-25 | 1988-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0220137U true JPH0220137U (no) | 1990-02-09 |
Family
ID=31322795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9737988U Pending JPH0220137U (no) | 1988-07-25 | 1988-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0220137U (no) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5339515A (en) * | 1976-09-22 | 1978-04-11 | Hitachi Ltd | Pressure proof blind structure |
| JPS5764137A (en) * | 1980-10-08 | 1982-04-19 | Tatsuo Ueda | Method and device for measuring leakage of buried pipeline |
-
1988
- 1988-07-25 JP JP9737988U patent/JPH0220137U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5339515A (en) * | 1976-09-22 | 1978-04-11 | Hitachi Ltd | Pressure proof blind structure |
| JPS5764137A (en) * | 1980-10-08 | 1982-04-19 | Tatsuo Ueda | Method and device for measuring leakage of buried pipeline |