KR960031612U - Opening and closing of artificial retractable lid - Google Patents

Opening and closing of artificial retractable lid

Info

Publication number
KR960031612U
KR960031612U KR2019950005089U KR19950005089U KR960031612U KR 960031612 U KR960031612 U KR 960031612U KR 2019950005089 U KR2019950005089 U KR 2019950005089U KR 19950005089 U KR19950005089 U KR 19950005089U KR 960031612 U KR960031612 U KR 960031612U
Authority
KR
South Korea
Prior art keywords
closing
opening
retractable lid
artificial retractable
artificial
Prior art date
Application number
KR2019950005089U
Other languages
Korean (ko)
Other versions
KR0123632Y1 (en
Inventor
주진도
Original Assignee
한국전기통신공사
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 한국전기통신공사 filed Critical 한국전기통신공사
Priority to KR2019950005089U priority Critical patent/KR0123632Y1/en
Publication of KR960031612U publication Critical patent/KR960031612U/en
Application granted granted Critical
Publication of KR0123632Y1 publication Critical patent/KR0123632Y1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
    • B66F19/005—Lifting devices for manhole covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F2700/00—Lifting apparatus
    • B66F2700/09—Other lifting devices

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
KR2019950005089U 1995-03-22 1995-03-22 Opening and shutting apparatus of manhole cover KR0123632Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019950005089U KR0123632Y1 (en) 1995-03-22 1995-03-22 Opening and shutting apparatus of manhole cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019950005089U KR0123632Y1 (en) 1995-03-22 1995-03-22 Opening and shutting apparatus of manhole cover

Publications (2)

Publication Number Publication Date
KR960031612U true KR960031612U (en) 1996-10-24
KR0123632Y1 KR0123632Y1 (en) 1998-10-15

Family

ID=19409663

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019950005089U KR0123632Y1 (en) 1995-03-22 1995-03-22 Opening and shutting apparatus of manhole cover

Country Status (1)

Country Link
KR (1) KR0123632Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11473701B2 (en) 2018-05-03 2022-10-18 Dasung Tech Co., Ltd. Connecting device and pipe press-fit connecting apparatus using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102230276B1 (en) * 2020-09-14 2021-03-19 더본테크(주) Leverage system for opening manhole by controlling of ratio of the distance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11473701B2 (en) 2018-05-03 2022-10-18 Dasung Tech Co., Ltd. Connecting device and pipe press-fit connecting apparatus using the same

Also Published As

Publication number Publication date
KR0123632Y1 (en) 1998-10-15

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Legal Events

Date Code Title Description
A201 Request for examination
N231 Notification of change of applicant
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20070507

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee