EP 2225418 A4 20120314 - METHOD OF MANUALLY RESTORING AN INNER SURFACE OF A CORRUGATED STEEL TUBE
Title (en)
METHOD OF MANUALLY RESTORING AN INNER SURFACE OF A CORRUGATED STEEL TUBE
Title (de)
VERFAHREN ZUM MANUELLEN WIEDERHERSTELLEN EINER INNENFLÄCHE EINES ROHRS AUS GEWELLTEM STAHL
Title (fr)
PROCÉDÉ DE REMISE EN ÉTAT MANUELLE D'UNE SURFACE INTERNE D'UN TUBE D'ACIER ONDULÉ
Publication
Application
Priority
- SE 2008051447 W 20081212
- SE 0702779 A 20071212
Abstract (en)
[origin: WO2009075647A1] The invention relates to a method of manually restoring an inner surface (10) of a corrugated steel tube (1) forming part of a system for guiding water in association with an infrastructure, such under as roads, bridges and railroads.The method includes the steps of cleaning, finishing, repairing and coating. The inner surface (10) of the corrugated tube (1)is cleaned from remaining water and sediments, whereafter the inner surface (10)is finished to remove surface roughness created by ferrous corrosion(6). The occurring cavities, created by the ferrous corrosion, on the inner surface is repaired with a filler material and/or steel sheets and/or wire netting, whereafter the inner surface (10) is covered with a coating to create long time corrosion protection and restore the structural integrity.
IPC 8 full level
E01F 5/00 (2006.01); F16L 55/164 (2006.01)
CPC (source: EP SE)
E01F 5/00 (2013.01 - SE); E01F 5/005 (2013.01 - EP); F16L 55/164 (2013.01 - SE); F16L 2101/12 (2013.01 - EP); F16L 2101/16 (2013.01 - EP)
Citation (search report)
[X] US 5405218 A 19950411 - HYDE-SMITH PETER K [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009075647 A1 20090618; EP 2225418 A1 20100908; EP 2225418 A4 20120314; RU 2010128533 A 20120120; SE 0702779 L 20090613; SE 531827 C2 20090818
DOCDB simple family (application)
SE 2008051447 W 20081212; EP 08859845 A 20081212; RU 2010128533 A 20081212; SE 0702779 A 20071212