(19)

(11)

EP 1 144 770 A1

(12)

(43) Date of publication: 17.10.2001 Bulletin 2001/42 (21) Application number: 00900959.8 (22) Date of filing: 04.01.2000

(51) International Patent Classification (IPC)7: E04C 2/32, E04D 3/32 (86) International application number: PCT/NL0000/001 (87) International publication number: WO 0040/819 (13.07.2000 Gazette 2000/28)

(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: 05.01.1999 NL 1010954 (71) Applicant: Tinga Research & Development B.V. 8831 XC Winsum (NL)	(72) Inventor: TINGA, Jippe Nl-8831 ZD Winsum Fr. (NL) (74) Representative: Jorritsma, Ruurd  Nederlandsch OctrooibureauScheveningseweg 82P.O. Box 29720 2502 LS Den Haag 2502 LS Den Haag (NL)