(19)

(11)

EP 0 105 895 A1

(12)

(43) Date of publication: 25.04.1984 Bulletin 1984/17 (21) Application number: 83901307.0 (22) Date of filing: 24.03.1983

(51) International Patent Classification (IPC):  F15B 13/ 04( . ) F16K 27/ 04( . ) F16K 11/ 07( . ) (86) International application number: PCT/AU1983/000036 (87) International publication number: WO 1983/003455 (13.10.1983 Gazette 1983/24)

(84) Designated Contracting States: DE FR GB SE (30) Priority: 24.03.1982 AU 19820003280 (71) Applicants: JOHNSON, Garrick Ross Christchurch 4 (NZ) Scalzo, Joseph Kew Melbourne Victoria 3101 (AU) STECKI, Jacek Stanislav North Balwyn VIC 3104 (AU)	(72) Inventors: JOHNSON, Garrick Ross Christchurch 4 (NZ) STECKI, Jacek Stanislav North Balwyn, VIC 3104 (AU) (74) Representative: Bowman, Paul Alan  LLOYD WISE, TREGEAR & CO. Norman House 105-109 Strand London WC2R OAE London WC2R OAE (GB)