(19)

(11)

EP 1 169 533 A1

(12)

(43) Date of publication: 09.01.2002 Bulletin 2002/02 (21) Application number: 00914128.4 (22) Date of filing: 30.03.2000

(51) International Patent Classification (IPC)7: E04H 3/16, E04B 7/16 (86) International application number: PCT/EP0002/205 (87) International publication number: WO 0060/192 (12.10.2000 Gazette 2000/41)

(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: 31.03.1999 NL 1011710 (71) Applicant: Rovero Systems B.V. 4941 VW Raamsdonksveer (NL)	(72) Inventor: VERMEULEN, Arnoldus, Henricus, Antonius NL-4844 EZ Terheijden (NL) (74) Representative: Hoorweg, Petrus Nicolaas et al Arnold & Siedsma, Advocaten en Octrooigemachtigden, Sweelinckplein 1 2517 GK Den Haag 2517 GK Den Haag (NL)