EP 1025317 A1 20000809 - LOCKING DEVICE FOR WELL COVERS
Title (en)
LOCKING DEVICE FOR WELL COVERS
Title (de)
VERSCHLUSSVORRICHTUNG FÜR BRUNNENABDECKUNGEN
Title (fr)
DISPOSITIF DE VERROUILLAGE POUR COUVERCLES DE PUITS
Publication
Application
Priority
- SE 9801576 W 19980907
- SE 9703258 A 19970908
Abstract (en)
[origin: WO9913170A1] The invention relates to a locking device to be mounted in the space between a cover (11) or grate and a surrounding frame (12) in openings in water and sewage systems and that prevents unauthorised opening. The locking device comprises two first elements (1), identical and put inverted to each other and on one side provided with friction element (5) of resilient material. In their lower edge the metal elements have outwardly bent flanges (3), extending to half the width of the element, which catch under the lower edge of respective elements when they are put together and inserted in the space. The upper part of the elements is bent outwardly to a second flange (4) in the opposite direction to the first flange (3). A second metal element (6) is inserted between the two first elements and expands the device, whereby the friction elements are compressed and cause extensive friction force against the walls of the space (11, 12).
IPC 1-7
IPC 8 full level
E02D 29/14 (2006.01); E03F 5/06 (2006.01)
CPC (source: EP)
E02D 29/1427 (2013.01); E03F 5/06 (2013.01); E03F 2005/065 (2013.01)
Citation (search report)
See references of WO 9913170A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT
DOCDB simple family (publication)
WO 9913170 A1 19990318; AU 9100498 A 19990329; EP 1025317 A1 20000809; SE 509291 C2 19990111; SE 9703258 D0 19970908; SE 9703258 L 19990111
DOCDB simple family (application)
SE 9801576 W 19980907; AU 9100498 A 19980907; EP 98943149 A 19980907; SE 9703258 A 19970908