KR920006423U - Passhole opening and closing device for sewer manhole cover - Google Patents
Passhole opening and closing device for sewer manhole coverInfo
- Publication number
- KR920006423U KR920006423U KR2019900014833U KR900014833U KR920006423U KR 920006423 U KR920006423 U KR 920006423U KR 2019900014833 U KR2019900014833 U KR 2019900014833U KR 900014833 U KR900014833 U KR 900014833U KR 920006423 U KR920006423 U KR 920006423U
- Authority
- KR
- South Korea
- Prior art keywords
- passhole
- opening
- closing device
- manhole cover
- sewer manhole
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1436—Covers for manholes or the like; Frames for covers with overflow or explosion control means, e.g. check or relief valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019900014833U KR930001808Y1 (en) | 1990-09-24 | 1990-09-24 | Sewage manhole cover |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019900014833U KR930001808Y1 (en) | 1990-09-24 | 1990-09-24 | Sewage manhole cover |
Publications (2)
Publication Number | Publication Date |
---|---|
KR920006423U true KR920006423U (en) | 1992-04-21 |
KR930001808Y1 KR930001808Y1 (en) | 1993-04-15 |
Family
ID=19303782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019900014833U KR930001808Y1 (en) | 1990-09-24 | 1990-09-24 | Sewage manhole cover |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR930001808Y1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102391621B1 (en) * | 2021-10-29 | 2022-04-28 | 주식회사 엠스톤글로벌 | Noiseless Keyboard |
-
1990
- 1990-09-24 KR KR2019900014833U patent/KR930001808Y1/en active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102391621B1 (en) * | 2021-10-29 | 2022-04-28 | 주식회사 엠스톤글로벌 | Noiseless Keyboard |
KR102420882B1 (en) * | 2021-10-29 | 2022-07-14 | 주식회사 엠스톤글로벌 | Noiseless Keyboard |
Also Published As
Publication number | Publication date |
---|---|
KR930001808Y1 (en) | 1993-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
NORF | Unpaid initial registration fee |