(19)

(11)

EP 1 088 162 A1

(12)

(43) Date of publication: 04.04.2001 Bulletin 2001/14 (21) Application number: 99926630.7 (22) Date of filing: 16.06.1999

(51) International Patent Classification (IPC)7: F03B 17/00 (86) International application number: PCT/GB9901/917 (87) International publication number: WO 9966/199 (23.12.1999 Gazette 1999/51)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE (30) Priority: 18.06.1998 GB 9813173 (71) Applicant: KENNEY, Alan David Marford,Wrexham,Clwyd LL12 8YA (GB)	(72) Inventor: KENNEY, Alan David Marford,Wrexham,Clwyd LL12 8YA (GB) (74) Representative: Lyons, Andrew John et al ROYSTONS,Tower Building,Water Street Liverpool L3 1BA,Merseyside Liverpool L3 1BA,Merseyside (GB)