NL7800076A - LOCK FOR A WELL COVER OR THE LIKE. - Google Patents

LOCK FOR A WELL COVER OR THE LIKE.

Info

Publication number
NL7800076A
NL7800076A NL7800076A NL7800076A NL7800076A NL 7800076 A NL7800076 A NL 7800076A NL 7800076 A NL7800076 A NL 7800076A NL 7800076 A NL7800076 A NL 7800076A NL 7800076 A NL7800076 A NL 7800076A
Authority
NL
Netherlands
Prior art keywords
lock
well cover
cover
well
Prior art date
Application number
NL7800076A
Other languages
Dutch (nl)
Original Assignee
Dumortier Robert
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 Dumortier Robert filed Critical Dumortier Robert
Publication of NL7800076A publication Critical patent/NL7800076A/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
    • E02D29/1427—Locking devices
NL7800076A 1977-01-05 1978-01-03 LOCK FOR A WELL COVER OR THE LIKE. NL7800076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7700650A FR2376919A1 (en) 1977-01-05 1977-01-05 LOCKING DEVICE FOR PAVEMENT MANIFOLD OR OTHER

Publications (1)

Publication Number Publication Date
NL7800076A true NL7800076A (en) 1978-07-07

Family

ID=9185351

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7800076A NL7800076A (en) 1977-01-05 1978-01-03 LOCK FOR A WELL COVER OR THE LIKE.

Country Status (5)

Country Link
CH (1) CH615970A5 (en)
DE (1) DE2756511A1 (en)
FR (1) FR2376919A1 (en)
GB (1) GB1551909A (en)
NL (1) NL7800076A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2780996A1 (en) * 1998-07-10 2000-01-14 Norinco DEVICE FOR LOCKING AND UNLOCKING WITH A KEY OF A BUFFER ON A FRAME

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570106B2 (en) * 1984-09-12 1986-12-19 Dumortier Robert LOCKING DEVICE FOR PAVEMENT OF LOAD
DE3546530A1 (en) * 1985-10-25 1987-05-21 Albert Stewing Device for securing a manhole cover
DE3537956A1 (en) * 1985-10-25 1987-05-07 Albert Stewing Manhole cover in particular for cable manholes
JPS63187738U (en) * 1987-05-26 1988-12-01
NL8900378A (en) * 1989-02-16 1990-09-17 Ocra Bv ADVERTISING COVER.
GB2270342B (en) * 1992-08-03 1996-05-15 Fort Vale Eng Ltd Securing assembly for a manlid
FR2897881B1 (en) * 2006-02-28 2008-04-11 Saint Gobain Pam Sa FRAME AND CORRESPONDING ROAD DEVICE.
FR2957109A1 (en) 2010-03-03 2011-09-09 Fond De Brousseval Et Montreuil LATCHING / UNLOCKING DEVICE WITH IMPROVED INVIOLABILITY AND ITS BUFFER KEY AND OPENING FOUNDRY PART
CN113530368B (en) * 2021-08-30 2023-03-21 泉州博超实业有限公司 Rotary lock for manhole cover

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1165804A (en) * 1915-03-25 1915-12-28 Quigley Furnace And Foundry Co Manhole-cover fastening.
GB196070A (en) * 1922-01-13 1923-04-13 Edward Montague Edwards Improvements in or relating to manhole covers and frames
US1684983A (en) * 1927-11-26 1928-09-18 Horace W Clark Box or casing cover with fastener
US2693100A (en) * 1950-06-06 1954-11-02 Charles B Wiegel Safety manhole cover lock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2780996A1 (en) * 1998-07-10 2000-01-14 Norinco DEVICE FOR LOCKING AND UNLOCKING WITH A KEY OF A BUFFER ON A FRAME
WO2000003097A1 (en) * 1998-07-10 2000-01-20 Norinco Closing device with selective locking

Also Published As

Publication number Publication date
DE2756511A1 (en) 1978-07-06
FR2376919A1 (en) 1978-08-04
CH615970A5 (en) 1980-02-29
GB1551909A (en) 1979-09-05
FR2376919B1 (en) 1982-07-23

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Legal Events

Date Code Title Description
BV The patent application has lapsed
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed