(19)

(11)

EP 0 577 691 A1

(12)

(43) Date of publication: 12.01.1994 Bulletin 1994/02 (21) Application number: 92907733.0 (22) Date of filing: 01.04.1992

(51) International Patent Classification (IPC):  B65G 65/ 32( . ) (86) International application number: PCT/SE1992/000205 (87) International publication number: WO 1992/017390 (15.10.1992 Gazette 1992/26)

(84) Designated Contracting States: BE DE ES FR GB NL (30) Priority: 03.04.1991 SE 19910000970 (71) Applicant: SPIRAC ENGINEERING AB S-200 61 Malmö (SE)	(72) Inventor: BRUKE, Richard S-230 44 Bunkeflostrand (SE) (74) Representative: Magnusson, Gustav  MAGNUPATENT AB P.O. Box 6207 S-200 11 Malmö 6 S-200 11 Malmö 6 (SE)