(19)

(11)

EP 0 621 939 A1

(12)

(43) Date of publication: 02.11.1994 Bulletin 1994/44 (21) Application number: 93902627.0 (22) Date of filing: 20.01.1993

(51) International Patent Classification (IPC):  F24F 1/ 02( . ) F24F 12/ 00( . ) (86) International application number: PCT/SE1993/000028 (87) International publication number: WO 1993/014354 (22.07.1993 Gazette 1993/18)

(84) Designated Contracting States: DE DK GB SE (30) Priority: 20.01.1992 SE 19920000148 (71) Applicant: Persson, Sixten S-113 23 Stockholm (SE)	(72) Inventor: Persson, Sixten S-113 23 Stockholm (SE) (74) Representative: Nyberg, Bengt  CARMINGER, UUSITALO & NYBERG Patentbyra AB P.O. Box 7274 S-103 89 Stockholm S-103 89 Stockholm (SE)