(19)
(11)
EP 0 556 236 A1
(12)
(43)
Date of publication:
25.08.1993
Bulletin 1993/34
(21)
Application number:
91919447.0
(22)
Date of filing:
06.11.1991
(51)
International Patent Classification (IPC):
F16L
55/
165
( . )
(86)
International application number:
PCT/GB1991/001948
(87)
International publication number:
WO 1992/008922
(
29.05.1992
Gazette 1992/12)
(84)
Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
(30)
Priority:
08.11.1990
GB 19900024273
(71)
Applicant:
INSITUFORM GROUP LIMITED
Douglas Isle of Man (GB)
(72)
Inventor:
WOOD, Eric
Castletown, Isle of Man (GB)
(74)
Representative:
Denmark, James, et al
Bailey, Walsh & Co. 5 York Place
Leeds LS1 2SD Yorkshire
Leeds LS1 2SD Yorkshire (GB)
(54)
IMPROVEMENTS RELATING TO THE LINING OF PIPELINES OR PASSAGEWAYS