(19)

(11)

EP 1 180 232 A1

(12)

(43) Date of publication: 20.02.2002 Bulletin 2002/08 (21) Application number: 00927950.6 (22) Date of filing: 03.05.2000

(51) International Patent Classification (IPC)7: F28F 1/32, F28F 9/013 (86) International application number: PCT/NL0000/288 (87) International publication number: WO 0068/629 (16.11.2000 Gazette 2000/46)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 11.05.1999 NL 1012029 (71) Applicant: Bloksma B.V. 1332 AB Almere (NL)	(72) Inventor: BLOKSMA, Walter NL-1332 AB Almere (NL) (74) Representative: De Hoop, Eric et al Octrooibureau Vriesendorp & Gaade P.O. Box 266 2501 AW Den Haag 2501 AW Den Haag (NL)