EP 0850381 A1 19980701 - PIPE REHABILITATION
Title (en)
PIPE REHABILITATION
Title (de)
SANIERUNG VON ROHRLEITUNGEN
Title (fr)
RENOVATION DE CONDUITES
Publication
Application
Priority
- AU 9600538 W 19960828
- AU PN511095 A 19950829
Abstract (en)
[origin: WO9708487A1] A method for rehabiliting existing pipelines in-situ is disclosed. A tubular liner (5) of a generally absorbent material is formed and at least one expandable bladder (7) is fed into the liner (5). The liner (5) is impregnated with a cold curable resin. The external surface of the liner and/or the internal surface of the pipeline (8) to be rehabilited is coated with a water resistant adhesive coating (16) prior to being fed into the pipeline (8) to be rehabilited together with its associated bladder (7). The bladder (7) is then inflated with a gaseous fluid to force the liner (5) against the internal wall (19) of said pipeline; and the inflation is maintained until the resin impregnated liner (5) has cured. The bladder (7) may then be removed from the cured liner (5).
IPC 1-7
IPC 8 full level
F16L 55/165 (2006.01)
CPC (source: EP)
F16L 55/1654 (2013.01)
Citation (search report)
See references of WO 9708487A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9708487 A1 19970306; AU PN511095 A0 19950921; CA 2230538 A1 19970306; EP 0850381 A1 19980701; NZ 315541 A 19990830
DOCDB simple family (application)
AU 9600538 W 19960828; AU PN511095 A 19950829; CA 2230538 A 19960828; EP 96927455 A 19960828; NZ 31554196 A 19960828