GB2257735B - Improvements relating to access covers - Google Patents

Improvements relating to access covers

Info

Publication number
GB2257735B
GB2257735B GB9214497A GB9214497A GB2257735B GB 2257735 B GB2257735 B GB 2257735B GB 9214497 A GB9214497 A GB 9214497A GB 9214497 A GB9214497 A GB 9214497A GB 2257735 B GB2257735 B GB 2257735B
Authority
GB
United Kingdom
Prior art keywords
improvements relating
access covers
covers
access
relating
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 - Fee Related
Application number
GB9214497A
Other versions
GB2257735A (en
GB9214497D0 (en
Inventor
Ivan Lee Robins
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.)
Glynwed Consumer and Building Products Ltd
Original Assignee
Glynwed Consumer and Building Products Ltd
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 Glynwed Consumer and Building Products Ltd filed Critical Glynwed Consumer and Building Products Ltd
Priority to AU21016/92A priority Critical patent/AU658426B2/en
Publication of GB9214497D0 publication Critical patent/GB9214497D0/en
Publication of GB2257735A publication Critical patent/GB2257735A/en
Application granted granted Critical
Publication of GB2257735B publication Critical patent/GB2257735B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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)
  • Automotive Seat Belt Assembly (AREA)
GB9214497A 1991-07-09 1992-07-08 Improvements relating to access covers Expired - Fee Related GB2257735B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21016/92A AU658426B2 (en) 1991-08-15 1992-08-14 Substituted heterocycles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919114821A GB9114821D0 (en) 1991-07-09 1991-07-09 Access covers

Publications (3)

Publication Number Publication Date
GB9214497D0 GB9214497D0 (en) 1992-08-19
GB2257735A GB2257735A (en) 1993-01-20
GB2257735B true GB2257735B (en) 1995-01-11

Family

ID=10698077

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919114821A Pending GB9114821D0 (en) 1991-07-09 1991-07-09 Access covers
GB9214497A Expired - Fee Related GB2257735B (en) 1991-07-09 1992-07-08 Improvements relating to access covers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919114821A Pending GB9114821D0 (en) 1991-07-09 1991-07-09 Access covers

Country Status (1)

Country Link
GB (2) GB9114821D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2308858A (en) * 1995-12-30 1997-07-09 Richard James Vince Fillingham Manhole cover keyway plug
GB201507852D0 (en) * 2015-05-07 2015-06-17 Wrekin Holdings Ltd Ground surface access assembly covers
CN105402231B (en) * 2015-12-14 2018-03-09 山东俊强五金股份有限公司 A kind of pressure automatic locking mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB463885A (en) * 1936-01-20 1937-04-08 Henry Brown Improvements in and relating to covers for manholes and the like
GB2017198A (en) * 1977-12-10 1979-10-03 Jones & Son Ltd Fredrick An Improved Locking Device
GB2170846A (en) * 1985-02-07 1986-08-13 Duct & Access Covers Ltd Seal for the lifting eye of an access cover unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB463885A (en) * 1936-01-20 1937-04-08 Henry Brown Improvements in and relating to covers for manholes and the like
GB2017198A (en) * 1977-12-10 1979-10-03 Jones & Son Ltd Fredrick An Improved Locking Device
GB2170846A (en) * 1985-02-07 1986-08-13 Duct & Access Covers Ltd Seal for the lifting eye of an access cover unit

Also Published As

Publication number Publication date
GB9114821D0 (en) 1991-08-28
GB2257735A (en) 1993-01-20
GB9214497D0 (en) 1992-08-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970708