(19)

(11)

EP 0 906 457 A1

(12)

(43) Date of publication: 07.04.1999 Bulletin 1999/14 (21) Application number: 97916606.0 (22) Date of filing: 30.04.1997

(51) International Patent Classification (IPC):  D01G 15/ 46( . ) (86) International application number: PCT/IB1997/000454 (87) International publication number: WO 1997/042362 (13.11.1997 Gazette 1997/49)

(84) Designated Contracting States: DE GB IT (30) Priority: 09.05.1996 DE 19961018702 (71) Applicant: MASCHINENFABRIK RIETER AG 8406 Winterthur (CH)	(72) Inventors: WÜEST, Oliver CH-8472 Seuzach (CH) BOSSHARD, Marcel CH-8360 Wallenwil (CH)