(19)

(11)

EP 0 328 599 A1

(12)

(43) Date of publication: 23.08.1989 Bulletin 1989/34 (21) Application number: 88907156.0 (22) Date of filing: 21.07.1988

(51) International Patent Classification (IPC):  F16L 3/ 10( . ) (86) International application number: PCT/AU1988/000262 (87) International publication number: WO 1989/001106 (09.02.1989 Gazette 1989/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 27.07.1987 AU 19870003351 (71) Applicants: MATTHEWS, Graham Harold Panorama, S.A. 5041 (AU) MATTHEWS, Ian Kent Panorama, S.A. 5041 (AU)	(72) Inventors: MATTHEWS, Graham Harold Panorama, S.A. 5041 (AU) MATTHEWS, Ian Kent Panorama, S.A. 5041 (AU) (74) Representative: Denmark, James  Bailey, Walsh & Co. 5 York Place Leeds LS1 2SD Yorkshire Leeds LS1 2SD Yorkshire (GB)