DK44691A - DEVICE FOR FRAME COVER FRAME - Google Patents

DEVICE FOR FRAME COVER FRAME Download PDF

Info

Publication number
DK44691A
DK44691A DK044691A DK44691A DK44691A DK 44691 A DK44691 A DK 44691A DK 044691 A DK044691 A DK 044691A DK 44691 A DK44691 A DK 44691A DK 44691 A DK44691 A DK 44691A
Authority
DK
Denmark
Prior art keywords
frame
cover
ribs
depressions
interact
Prior art date
Application number
DK044691A
Other languages
Danish (da)
Other versions
DK172425B1 (en
DK44691D0 (en
Inventor
Per T Westheim
Original Assignee
S D Cappelen Ulefos Jernvaerk
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 S D Cappelen Ulefos Jernvaerk filed Critical S D Cappelen Ulefos Jernvaerk
Publication of DK44691D0 publication Critical patent/DK44691D0/en
Publication of DK44691A publication Critical patent/DK44691A/en
Application granted granted Critical
Publication of DK172425B1 publication Critical patent/DK172425B1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Paleontology (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Body Structure For Vehicles (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Sewage (AREA)
  • Closures For Containers (AREA)
  • Wing Frames And Configurations (AREA)
  • Projection Apparatus (AREA)

Abstract

Rotation lock for well cover in a frame consisting of one or more locking devices 8 in the form of depressions or mutually separate ribs arranged in pairs, which ribs are arranged to interact with a resilient lock mechanism 6 and a projection 9 on this to prevent the cover 3 from rotating within the frame 2. <IMAGE>
DK199100446A 1990-03-16 1991-03-12 Well cover frame device DK172425B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO901228A NO177577B (en) 1990-03-16 1990-03-16 Device by frame for cowl lid
NO901228 1990-03-16

Publications (3)

Publication Number Publication Date
DK44691D0 DK44691D0 (en) 1991-03-12
DK44691A true DK44691A (en) 1991-09-17
DK172425B1 DK172425B1 (en) 1998-06-08

Family

ID=19892998

Family Applications (1)

Application Number Title Priority Date Filing Date
DK199100446A DK172425B1 (en) 1990-03-16 1991-03-12 Well cover frame device

Country Status (3)

Country Link
DK (1) DK172425B1 (en)
NO (1) NO177577B (en)
SE (1) SE502935C2 (en)

Also Published As

Publication number Publication date
NO901228L (en) 1991-09-17
DK172425B1 (en) 1998-06-08
SE9100728L (en) 1991-09-17
SE9100728D0 (en) 1991-03-11
SE502935C2 (en) 1996-02-26
DK44691D0 (en) 1991-03-12
NO177577B (en) 1995-07-03
NO901228D0 (en) 1990-03-16

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PPF Opposition filed
PUG Patent revoked