(19)

(11)

EP 0 890 017 A1

(12)

(43) Date of publication: 13.01.1999 Bulletin 1999/02 (21) Application number: 97906263.0 (22) Date of filing: 06.03.1997

(51) International Patent Classification (IPC):  F01C 1/ 063( . ) F01C 9/ 00( . ) (86) International application number: PCT/GB1997/000621 (87) International publication number: WO 1997/033073 (12.09.1997 Gazette 1997/39)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 07.03.1996 GB 19960004818 (71) Applicant: Seal, Edward Epping, Essex CM 16 7QZ (GB)	(72) Inventor: Seal, Edward Epping, Essex CM 16 7QZ (GB) (74) Representative: Suèr, Steven Johannes, et al  Ablett & Stebbing, Caparo House, 101-103 Baker Street London W1M 1FD London W1M 1FD (GB)