(19)

(11)

EP 0 591 215 A1

(12)

(43) Date of publication: 13.04.1994 Bulletin 1994/15 (21) Application number: 91920508.0 (22) Date of filing: 18.11.1991

(51) International Patent Classification (IPC):  F28F 19/ 00( . ) (86) International application number: PCT/SE1991/000782 (87) International publication number: WO 1992/008942 (29.05.1992 Gazette 1992/12)

(84) Designated Contracting States: BE CH DE DK ES FR GB IT LI NL (30) Priority: 16.11.1990 SE 19900003669 (71) Applicant: VATTENFALL AB S-162 87 Vällingby (SE)	(72) Inventor: WEISS, Josef S-432 32 Varberg (SE) (74) Representative: Hedefält, Dag, et al  Försvarets Materielverk Patentenheten S-115 88 Stockholm S-115 88 Stockholm (SE)