(19)

(11)

EP 0 028 622 A1

(12)

(43) Date of publication: 20.05.1981 Bulletin 1981/20 (21) Application number: 80900974.0 (22) Date of filing: 15.05.1980

(51) International Patent Classification (IPC):  F02B 57/ 08( . ) F02B 75/ 18( . ) F02D 15/ 02( . ) (86) International application number: PCT/AU1980/000013 (87) International publication number: WO 1980/002584 (04.12.1980 Gazette 1980/27)

(84) Designated Contracting States: CH DE FR GB LI SE (30) Priority: 15.05.1979 AU 19790008818 (71) Applicant: PRICE BATTEN PTY. LTD. State of South Australia (AU)	(72) Inventor: GALL, Ricahrd Batten South Australia 5061 (AU)