(19)

(11)

EP 0 931 223 A1

(12)

(43) Date of publication: 28.07.1999 Bulletin 1999/30 (21) Application number: 97941098.0 (22) Date of filing: 22.09.1997

(51) International Patent Classification (IPC):  F04D 29/ 60( . ) F16M 11/ 04( . ) (86) International application number: PCT/GB1997/002562 (87) International publication number: WO 1998/014706 (09.04.1998 Gazette 1998/14)

(84) Designated Contracting States: DE FR IT SE (30) Priority: 30.09.1996 GB 19960020378 (71) Applicant: Woods Air Movement Limited Colchester, Essex C04 5AR (GB)	(72) Inventors: GOWER, Douglas, Lindsay Essex CO4 4RH (GB) COWLIN, Phillip, Sydney Essex CO6 1PQ (GB) (74) Representative: Camp, Ronald  GEC Patent Department, Waterhouse Lane Chelmsford, Essex CM1 2QX Chelmsford, Essex CM1 2QX (GB)