(19)

(11)

EP 0 597 855 A1

(12)

(43) Date of publication: 25.05.1994 Bulletin 1994/21 (21) Application number: 91914458.0 (22) Date of filing: 06.08.1991

(51) International Patent Classification (IPC):  F02B 53/ 00( . ) F01C 9/ 00( . ) (86) International application number: PCT/GB1991/001365 (87) International publication number: WO 1993/003257 (18.02.1993 Gazette 1993/05)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (71) Applicant: GOODMAN, William A. Houston, TX 77058 (US)	(72) Inventor: GOODMAN, William A. Houston, TX 77058 (US) (74) Representative: Jones, William  Willow Lane House Willow Lane Norwich Norfolk, NR2 1EU Norwich Norfolk, NR2 1EU (GB)