(19)

(11)

EP 0 670 968 A1

(12)

(43) Date of publication: 13.09.1995 Bulletin 1995/37 (21) Application number: 92904126.0 (22) Date of filing: 20.12.1991

(51) International Patent Classification (IPC):  F15B 15/ 22( . ) (86) International application number: PCT/SE1991/000898 (87) International publication number: WO 1992/014934 (03.09.1992 Gazette 1992/23)

(84) Designated Contracting States: DE FR GB (30) Priority: 20.02.1991 SE 19910000511 (71) Applicant: AKTIEBOLAGET REXROTH MECMAN S-125 81 Stockholm (SE)	(72) Inventor: HEDLUND, Staffan S-127 36 Skärholmen (SE) (74) Representative: Modin, Jan, et al  c/o Axel Ehrners Patentbyra AB Box 10316 S-100 55 Stockholm S-100 55 Stockholm (SE)