(19)

(11)

EP 1 047 850 A1

(12)

(43) Date of publication: 02.11.2000 Bulletin 2000/44 (21) Application number: 99901049.9 (22) Date of filing: 15.01.1999

(51) International Patent Classification (IPC)7: E04C 5/16 (86) International application number: PCT/GB9900/132 (87) International publication number: WO 9936/642 (22.07.1999 Gazette 1999/29)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 15.01.1998 GB 9800858 (71) Applicant: Amorntatkul, Noppadol Prakanong Bangkok 10260 (TH)	(72) Inventors: AMORNTATKUL, Noppadol,53 Sukhumvit 101/1 Prakanong Bangkok 10260 (TH) BÜHLER, Rainer D-72649 Wolfschlugen (DE) (74) Representative: Johnson, Terence Leslie  Edward Evans & Co.,Clifford's Inn,Fetter Lane London EC4A 1BX London EC4A 1BX (GB)