(19)

(11)

EP 0 532 574 A1

(12)

(43) Date of publication: 24.03.1993 Bulletin 1993/12 (21) Application number: 91910357.0 (22) Date of filing: 04.06.1991

(51) International Patent Classification (IPC):  A62B 9/ 04( . ) A62B 18/ 02( . ) (86) International application number: PCT/FI1991/000175 (87) International publication number: WO 1991/018647 (12.12.1991 Gazette 1991/28)

(84) Designated Contracting States: DE FR GB (30) Priority: 04.06.1990 FI 19900002777 (71) Applicant: AIR-ACE OY SF-40320 Jyväskylä (FI)	(72) Inventor: INKINEN, Hannu SF-40950 Muurame (FI) (74) Representative: Gahlert, Stefan, Dr.-Ing., et al  Witte, Weller, Gahlert & Otten Patentanwälte Rotebühlstrasse 121 D-70178 Stuttgart D-70178 Stuttgart (DE)