(19)

(11)

EP 0 713 568 A1

(12)

(43) Date of publication: 29.05.1996 Bulletin 1996/22 (21) Application number: 94922202.0 (22) Date of filing: 08.08.1994

(51) International Patent Classification (IPC):  F16K 17/ 28( . ) F17C 13/ 12( . ) (86) International application number: PCT/AU1994/000453 (87) International publication number: WO 1995/005554 (23.02.1995 Gazette 1995/09)

(84) Designated Contracting States: AT BE DE DK ES FR GB IT NL SE (30) Priority: 09.08.1993 AU 1929PM00043 12.07.1994 AU 1989PM00674 (71) Applicants: Esplin, Trevor Thomas Cremorne Point, NSW 2090 (AU) Morrison, Walter Belmore NSW 2195 (AU) Morrison, Jean Belmore NSW 2195 (AU)	(72) Inventors: Esplin, Trevor Thomas Cremorne Point, NSW 2090 (AU) Morrison, Walter Belmore NSW 2195 (AU) Morrison, Jean Belmore NSW 2195 (AU) (74) Representative: Coyle, Philip Aidan, et al  F. R. KELLY & CO. 27 Clyde Road Ballsbridge Dublin 4 Dublin 4 (IE)