(19)

(11)

EP 0 088 080 A1

(12)

(43) Date of publication: 14.09.1983 Bulletin 1983/37 (21) Application number: 82900011.0 (22) Date of filing: 11.12.1981

(51) International Patent Classification (IPC):  F03B 13/ 14( . ) (86) International application number: PCT/AU1981/000189 (87) International publication number: WO 1983/000889 (17.03.1983 Gazette 1983/07)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (30) Priority: 04.09.1981 AU 19810000588 18.11.1981 AU 19810001601 (71) Applicant: FLEAY, William Arnold Rossmoyne, W.A. 6155 (AU)	(72) Inventor: FLEAY, William Arnold Rossmoyne, W.A. 6155 (AU)