KR920006423U - Passhole opening and closing device for sewer manhole cover - Google Patents

Passhole opening and closing device for sewer manhole cover

Info

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
Application number
KR2019900014833U
Other languages
Korean (ko)
Other versions
KR930001808Y1 (en
Inventor
조영순
Original Assignee
조영순
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 조영순 filed Critical 조영순
Priority to KR2019900014833U priority Critical patent/KR930001808Y1/en
Publication of KR920006423U publication Critical patent/KR920006423U/en
Application granted granted Critical
Publication of KR930001808Y1 publication Critical patent/KR930001808Y1/en

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)
KR2019900014833U 1990-09-24 1990-09-24 Sewage manhole cover KR930001808Y1 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102391621B1 (en) * 2021-10-29 2022-04-28 주식회사 엠스톤글로벌 Noiseless Keyboard

Cited By (2)

* Cited by examiner, † Cited by third party
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