(19)

(11)

EP 0 680 594 A1

(12)

(43) Date of publication: 08.11.1995 Bulletin 1995/45 (21) Application number: 94905894.0 (22) Date of filing: 24.01.1994

(51) International Patent Classification (IPC):  F28D 7/ 02( . ) F28F 13/ 12( . ) F28F 1/ 00( . ) (86) International application number: PCT/SE1994/000048 (87) International publication number: WO 1994/017355 (04.08.1994 Gazette 1994/18)

(84) Designated Contracting States: AT BE CH DE DK IT LI LU NL SE (30) Priority: 23.01.1993 SE 19930000209 (71) Applicant: SOLVIS Solarsysteme GmbH D-38122 Braunschweig (DE)	(72) Inventors: LORENZ, KLAUS S-793 31 Leksand (SE) BROMAN, LARS S-791 74 Falun (SE) (74) Representative: Einsel, Martin  Patentanwalt Dipl.-Phys. M. Einsel Jasperallee 1A D-38102 Braunschweig D-38102 Braunschweig (DE)