(19)

(11)

EP 0 171 421 A1

(12)

(43) Date of publication: 19.02.1986 Bulletin 1986/08 (21) Application number: 85900951.0 (22) Date of filing: 13.02.1985

(51) International Patent Classification (IPC):  F16L 11/ 12( . ) F16L 33/ 22( . ) F16L 33/ 01( . ) (86) International application number: PCT/AU1985/000024 (87) International publication number: WO 1985/003756 (29.08.1985 Gazette 1985/19)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 14.02.1984 AU 19840003620 (71) Applicant: TAIT, Cyril Stephen Oakleigh, VIC 3166 (AU)	(72) Inventor: TAIT, Cyril Stephen Oakleigh, VIC 3166 (AU)