(19)

(11)

EP 0 434 748 A1

(12)

(43) Date of publication: 03.07.1991 Bulletin 1991/27 (21) Application number: 89910902.0 (22) Date of filing: 18.09.1989

(51) International Patent Classification (IPC):  F15B 13/ 043( . ) F15B 13/ 044( . ) F16K 31/ 04( . ) F15B 13/ 04( . ) F15B 18/ 00( . ) (86) International application number: PCT/GB1989/001088 (87) International publication number: WO 1990/002884 (22.03.1990 Gazette 1990/07)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 16.09.1988 GB 19880021724 (71) Applicant: FAIREY HYDRAULICS LIMITED Middlesex, TW5 9NQ (GB)	(72) Inventor: FUELL, Frederick, James Avon (GB) (74) Representative: Maggs, Michael Norman, et al  Kilburn & Strode 30 John Street London WC1N 2DD London WC1N 2DD (GB)