JPS63198694U - - Google Patents
Info
- Publication number
- JPS63198694U JPS63198694U JP9021187U JP9021187U JPS63198694U JP S63198694 U JPS63198694 U JP S63198694U JP 9021187 U JP9021187 U JP 9021187U JP 9021187 U JP9021187 U JP 9021187U JP S63198694 U JPS63198694 U JP S63198694U
- Authority
- JP
- Japan
- Prior art keywords
- water
- penetrating
- joint
- ring
- chamber
- 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
- 230000000149 penetrating effect Effects 0.000 claims description 15
- 230000035515 penetration Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002250 absorbent Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 229920006311 Urethane elastomer Polymers 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9021187U JPH0423995Y2 (cs) | 1987-06-11 | 1987-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9021187U JPH0423995Y2 (cs) | 1987-06-11 | 1987-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63198694U true JPS63198694U (cs) | 1988-12-21 |
| JPH0423995Y2 JPH0423995Y2 (cs) | 1992-06-04 |
Family
ID=30949871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9021187U Expired JPH0423995Y2 (cs) | 1987-06-11 | 1987-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0423995Y2 (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02129493U (cs) * | 1989-03-31 | 1990-10-25 |
-
1987
- 1987-06-11 JP JP9021187U patent/JPH0423995Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02129493U (cs) * | 1989-03-31 | 1990-10-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0423995Y2 (cs) | 1992-06-04 |
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