JPS63115683U - - Google Patents
Info
- Publication number
- JPS63115683U JPS63115683U JP708587U JP708587U JPS63115683U JP S63115683 U JPS63115683 U JP S63115683U JP 708587 U JP708587 U JP 708587U JP 708587 U JP708587 U JP 708587U JP S63115683 U JPS63115683 U JP S63115683U
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing rib
- flanges
- synthetic resin
- vertical walls
- extending
- 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
- 230000003014 reinforcing effect Effects 0.000 claims 4
- 229920003002 synthetic resin Polymers 0.000 claims 2
- 239000000057 synthetic resin Substances 0.000 claims 2
- 239000002131 composite material Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987007085U JPH0448397Y2 (https=) | 1987-01-21 | 1987-01-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987007085U JPH0448397Y2 (https=) | 1987-01-21 | 1987-01-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63115683U true JPS63115683U (https=) | 1988-07-26 |
| JPH0448397Y2 JPH0448397Y2 (https=) | 1992-11-13 |
Family
ID=30790211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987007085U Expired JPH0448397Y2 (https=) | 1987-01-21 | 1987-01-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0448397Y2 (https=) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57110426A (en) * | 1980-12-29 | 1982-07-09 | Toyo Chem Co Ltd | Method and apparatus for preparing corrugated pipe |
| JPS61141889U (https=) * | 1985-02-25 | 1986-09-02 |
-
1987
- 1987-01-21 JP JP1987007085U patent/JPH0448397Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57110426A (en) * | 1980-12-29 | 1982-07-09 | Toyo Chem Co Ltd | Method and apparatus for preparing corrugated pipe |
| JPS61141889U (https=) * | 1985-02-25 | 1986-09-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0448397Y2 (https=) | 1992-11-13 |