(19)

(11)

EP 0 850 381 A1

(12)

(43) Date of publication: 01.07.1998 Bulletin 1998/27 (21) Application number: 96927455.0 (22) Date of filing: 28.08.1996

(51) International Patent Classification (IPC):  F16L 55/ 165( . ) (86) International application number: PCT/AU1996/000538 (87) International publication number: WO 1997/008487 (06.03.1997 Gazette 1997/11)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 29.08.1995 AU 1995PN05110 (71) Applicant: Barry, Kevin, Francis, Patrick, Jr. Turramurra, NSW 2074 (AU)	(72) Inventor: Barry, Kevin, Francis, Patrick, Jr. Turramurra, NSW 2074 (AU) (74) Representative: Woodcraft, David Charles  BROOKES & MARTIN High Holborn House 52/54 High Holborn London, WC1V 6SE London, WC1V 6SE (GB)