(19)

(11)

EP 0 390 861 A1

(12)

(43) Date of publication: 10.10.1990 Bulletin 1990/41 (21) Application number: 89901105.0 (22) Date of filing: 21.12.1988

(51) International Patent Classification (IPC):  F26B 11/ 06( . ) (86) International application number: PCT/DK1988/000214 (87) International publication number: WO 1989/005950 (29.06.1989 Gazette 1989/14)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 21.12.1987 DK 19870006718 (71) Applicant: HOLT, Torben DK-9800 Hjorring (DK)	(72) Inventor: HOLT, Torben DK-9800 Hjorring (DK) (74) Representative: Smulders, Theodorus A.H.J., Ir., et al  Vereenigde Octrooibureaux Nieuwe Parklaan 97 NL-2587 BN 's-Gravenhage NL-2587 BN 's-Gravenhage (NL)