JPS6126231Y2 - - Google Patents
Info
- Publication number
- JPS6126231Y2 JPS6126231Y2 JP1981068165U JP6816581U JPS6126231Y2 JP S6126231 Y2 JPS6126231 Y2 JP S6126231Y2 JP 1981068165 U JP1981068165 U JP 1981068165U JP 6816581 U JP6816581 U JP 6816581U JP S6126231 Y2 JPS6126231 Y2 JP S6126231Y2
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- lid
- unit plate
- cover
- edge
- 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.)
- Expired
Links
- 230000000630 rising effect Effects 0.000 description 9
- 239000000758 substrate Substances 0.000 description 7
- 238000012856 packing Methods 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981068165U JPS6126231Y2 (ru) | 1981-05-11 | 1981-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981068165U JPS6126231Y2 (ru) | 1981-05-11 | 1981-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57180694U JPS57180694U (ru) | 1982-11-16 |
| JPS6126231Y2 true JPS6126231Y2 (ru) | 1986-08-06 |
Family
ID=29864122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981068165U Expired JPS6126231Y2 (ru) | 1981-05-11 | 1981-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6126231Y2 (ru) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202006018244U1 (de) * | 2006-12-01 | 2008-04-10 | Thorwesten Vent Gmbh | Vorrichtung zum Ausgleich von Druckstößen in geschlossenen Systemen, wie Silos o.dgl. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55134079A (en) * | 1979-03-29 | 1980-10-18 | Shin Meiwa Ind Co Ltd | Device for hermetically sealing opening portion of tank truck* etc* |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS607417Y2 (ja) * | 1977-05-26 | 1985-03-12 | 積水工事株式会社 | マンホ−ル用単位板 |
-
1981
- 1981-05-11 JP JP1981068165U patent/JPS6126231Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55134079A (en) * | 1979-03-29 | 1980-10-18 | Shin Meiwa Ind Co Ltd | Device for hermetically sealing opening portion of tank truck* etc* |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57180694U (ru) | 1982-11-16 |
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