(19)

(11)

EP 0 401 317 A1

(12)

(43) Date of publication: 12.12.1990 Bulletin 1990/50 (21) Application number: 89912016.0 (22) Date of filing: 23.10.1989

(51) International Patent Classification (IPC):  F26B 21/ 06( . ) (86) International application number: PCT/SE1989/000581 (87) International publication number: WO 1990/004747 (03.05.1990 Gazette 1990/10)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 25.10.1988 US 19880261848 (71) Applicant: CEDERSTROM, Rolf V S-116 51 Stockholm (SE)	(72) Inventor: CEDERSTROM, Rolf V S-116 51 Stockholm (SE) (74) Representative: Moberg, Sture  STURE V MOBERG AB Kungstensgatan 48 S-113 59 Stockholm S-113 59 Stockholm (SE)