(19)

(11)

EP 0 680 577 A1

(12)

(43) Date of publication: 08.11.1995 Bulletin 1995/45 (21) Application number: 92918681.0 (22) Date of filing: 22.07.1992

(51) International Patent Classification (IPC):  F16K 24/ 04( . ) (86) International application number: PCT/SE1992/000527 (87) International publication number: WO 1993/005325 (18.03.1993 Gazette 1993/08)

(84) Designated Contracting States: BE DE DK FR GB (30) Priority: 28.08.1991 SE 19910002468 (71) Applicant: ISRAELSSONS MEKANISKA VERKSTAD AB S-772 00 Grängesberg (SE)	(72) Inventor: ISRAELSSON, Roger S-772 00 Grängesberg (SE) (74) Representative: Bjellman, Lennart Olov Henrik, et al  DR. LUDWIG BRANN PATENTBYRA AB Box 1344 S-751 43 Uppsala S-751 43 Uppsala (SE)