(19)

(11)

EP 0 257 043 A1

(12)

(43) Date of publication: 02.03.1988 Bulletin 1988/09 (21) Application number: 87900789.0 (22) Date of filing: 28.01.1987

(51) International Patent Classification (IPC):  F02B 53/ 00( . ) F01C 3/ 06( . ) F04C 2/ 36( . ) F04C 3/ 06( . ) F02B 75/ 02( . ) F01C 1/ 22( . ) F02B 53/ 02( . ) F04C 3/ 00( . ) F04C 18/ 36( . ) (86) International application number: PCT/AU1987/000021 (87) International publication number: WO 1987/004495 (30.07.1987 Gazette 1987/17)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 28.01.1986 AU 19860004345 (71) Applicant: THOMPSON, Glenn A. Whittlesea, VIC 3757 (AU)	(72) Inventor: THOMPSON, Glenn A. Whittlesea, VIC 3757 (AU) (74) Representative: Newby, Martin John, et al  J.Y. & G.W. Johnson Furnival House 14-18 High Holborn London WC1V 6DE London WC1V 6DE (GB)