(19)

(11)

EP 0 180 605 A1

(12)

(43) Date of publication: 14.05.1986 Bulletin 1986/20 (21) Application number: 85901944.0 (22) Date of filing: 10.05.1985

(51) International Patent Classification (IPC):  F04B 53/ 10( . ) F16K 15/ 02( . ) (86) International application number: PCT/AU1985/000104 (87) International publication number: WO 1985/005409 (05.12.1985 Gazette 1985/26)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 11.05.1984 AU 19840004946 (71) Applicant: MONTGOMERY, Peter Ross Mortlake, NSW 2137 (AU)	(72) Inventor: MONTGOMERY, Colin, Robert, Lister Mortlake, NSW 2137 (AU) (74) Representative: Senior, Alan Murray  J.A. KEMP & CO., 14 South Square, Gray's Inn London WC1R 5LX London WC1R 5LX (GB)