(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