GB2181474B - Self-locking manhole cover - Google Patents

Self-locking manhole cover

Info

Publication number
GB2181474B
GB2181474B GB08622677A GB8622677A GB2181474B GB 2181474 B GB2181474 B GB 2181474B GB 08622677 A GB08622677 A GB 08622677A GB 8622677 A GB8622677 A GB 8622677A GB 2181474 B GB2181474 B GB 2181474B
Authority
GB
United Kingdom
Prior art keywords
self
manhole cover
locking manhole
locking
cover
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
Application number
GB08622677A
Other versions
GB8622677D0 (en
GB2181474A (en
Inventor
Johan Refsahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FURNES HAMJERN NCC AS
Original Assignee
FURNES HAMJERN NCC AS
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 FURNES HAMJERN NCC AS filed Critical FURNES HAMJERN NCC AS
Publication of GB8622677D0 publication Critical patent/GB8622677D0/en
Publication of GB2181474A publication Critical patent/GB2181474A/en
Application granted granted Critical
Publication of GB2181474B publication Critical patent/GB2181474B/en
Expired legal-status Critical Current

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
GB08622677A 1985-01-30 1986-01-29 Self-locking manhole cover Expired GB2181474B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO850359A NO160455C (en) 1985-01-30 1985-01-30 Device for automatic locking and locking of the cowl lid

Publications (3)

Publication Number Publication Date
GB8622677D0 GB8622677D0 (en) 1986-10-22
GB2181474A GB2181474A (en) 1987-04-23
GB2181474B true GB2181474B (en) 1988-08-03

Family

ID=19888087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08622677A Expired GB2181474B (en) 1985-01-30 1986-01-29 Self-locking manhole cover

Country Status (7)

Country Link
DE (2) DE3690048T (en)
DK (1) DK154519C (en)
FI (1) FI83983C (en)
GB (1) GB2181474B (en)
NO (1) NO160455C (en)
SE (1) SE450713C (en)
WO (1) WO1986004624A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2032874T3 (en) * 1987-02-02 1993-03-01 Von Roll Ag SYSTEM TO SECURE A COVER THAT CLOSES AN OPENING.
GB2218054A (en) * 1988-05-06 1989-11-08 George Watkins Removable aperture closing plate
GB8907060D0 (en) * 1989-03-29 1989-05-10 Craig Philip Chamber and method of making same,liner and cover therefor
DE3925317A1 (en) * 1989-07-31 1991-02-07 Dallmer Gmbh & Co FLOOR DRAIN
FR2667889A1 (en) * 1990-10-15 1992-04-17 Pont A Mousson (EN) PAVEMENT LOOP BUFFER, LOOK COMPRISING THIS BUFFER AND LOCKING RING FOR SUCH A BUFFER.
GB2265649B (en) * 1992-04-02 1996-03-13 Colin Edward Staggs A manhole cover
NZ247626A (en) * 1992-05-18 1994-12-22 Grahame George Kermonde Manhole or pit cover secured by spring latch arms retained under compression
DE20204108U1 (en) * 2002-03-14 2003-07-24 Hydrotec Technologies Gmbh & C Cover of a manhole cover and manhole cover
WO2004085754A1 (en) 2003-03-25 2004-10-07 Aco Severin Ahlmann Gmbh & Co. Kg Cover arrangement
DE10356168B4 (en) * 2003-12-02 2007-04-12 Aco Severin Ahlmann Gmbh & Co. Kg Manhole cover with lifting protection
CN107675726A (en) * 2016-08-01 2018-02-09 先源开 A kind of synchronous adjustable safety inspection well cover
RU2702791C1 (en) * 2018-12-13 2019-10-11 Государственное Унитарное Предприятие "Водоканал Санкт-Петербурга" Manhole cover with retainer and damping lining of manhole cover

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1693190A (en) * 1925-08-29 1928-11-27 Elsa D Theobald Guenther Manhole cover
US1988360A (en) * 1932-10-28 1935-01-15 Lenape Hydraulic Pressing & Fo Manhole frame cover
GB521309A (en) * 1938-11-15 1940-05-17 Augustine Joseph Hartley Improvements in cast iron covers and frames for gullies, manholes, hydrants and the like openings in roads or footpaths
US2535275A (en) * 1946-01-28 1950-12-26 Dixon Frank Thomas Manhole lid clamp
DE820553C (en) * 1948-10-02 1951-11-12 Daimler Benz Ag Door lock
DE7029833U (en) * 1970-08-07 1970-12-17 Passavant Werke LOCKABLE MANHOLE COVER.
US4142329A (en) * 1977-10-25 1979-03-06 Williams Robert C Catch basin grate and receiving frame locking assembly
SE416483B (en) * 1978-08-25 1981-01-05 Varnesforetagen Ab Tierps Jern Cover device for a manhole, a gutter inlet or the like
NL7905854A (en) * 1979-07-30 1981-02-03 Raatjes Egbertus Sijbolt COVER.
GB2085946A (en) * 1980-10-17 1982-05-06 British Steel Corp Locking manhole covers and gully grids
GB2119836A (en) * 1982-01-29 1983-11-23 Brickhouse Dudley Mfg Manhole cover or grating and frame assemblies
SE436050B (en) * 1983-03-22 1984-11-05 Uponor Ab Locking apparatus for drain cover

Also Published As

Publication number Publication date
FI83983B (en) 1991-06-14
DK154519C (en) 1989-04-10
FI863887A (en) 1986-09-26
NO160455C (en) 1995-04-25
SE8604068D0 (en) 1986-09-25
GB8622677D0 (en) 1986-10-22
SE450713C (en) 1991-06-25
DE3690048C2 (en) 1996-03-28
NO160455B (en) 1989-01-09
NO850359L (en) 1986-07-31
DE3690048T (en) 1987-03-12
FI83983C (en) 1991-09-25
DK460886A (en) 1986-09-26
WO1986004624A1 (en) 1986-08-14
SE450713B (en) 1987-07-20
FI863887A0 (en) 1986-09-26
GB2181474A (en) 1987-04-23
DK154519B (en) 1988-11-21
SE8604068L (en) 1986-09-25
DK460886D0 (en) 1986-09-26

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20060128