(19)

(11)

EP 0 426 743 A1

(12)

(43) Date of publication: 15.05.1991 Bulletin 1991/20 (21) Application number: 89908886.0 (22) Date of filing: 27.07.1989

(51) International Patent Classification (IPC):  A47C 3/ 03( . ) A47C 1/ 027( . ) (86) International application number: PCT/NO1989/000078 (87) International publication number: WO 1990/000871 (08.02.1990 Gazette 1990/04)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL SE (30) Priority: 27.07.1988 NO 19880003319 (71) Applicant: RING MEKANIKK A.S. N-2391 Moelv (NO)	(72) Inventor: HOLSTENSSON, Lars S-571 39 Nassjö (SE) (74) Representative: Rostovanyi, Peter, et al  AWAPATENT AB, Box 5117 S-200 71 Malmö S-200 71 Malmö (SE)