(19)

(11)

EP 0 777 841 A1

(12)

(43) Date of publication: 11.06.1997 Bulletin 1997/24 (21) Application number: 95932281.0 (22) Date of filing: 13.09.1995

(51) International Patent Classification (IPC):  F24F 13/ 068( . ) F24F 13/ 08( . ) (86) International application number: PCT/SE1995/001033 (87) International publication number: WO 1996/008682 (21.03.1996 Gazette 1996/13)

(84) Designated Contracting States: BE DE DK GB NL (30) Priority: 14.09.1994 SE 19940003089 (71) Applicant: SOFTAIR AB 602 23 Norrköping (SE)	(72) Inventor: ANDERSSON, Sören S-603 75 Norrköping (SE) (74) Representative: Willquist, Bo, et al  Willquist & Partners Patentbyra AB, S:t Larsgatan 23 582 24 Linköping 582 24 Linköping (SE)