(19)

(11)

EP 1 190 143 A1

(12)

(43) Date of publication: 27.03.2002 Bulletin 2002/13 (21) Application number: 00930885.9 (22) Date of filing: 07.06.2000

(51) International Patent Classification (IPC)7: E01F 9/012, E01F 9/013, E01F 13/02 (86) International application number: PCT/AU0000/640 (87) International publication number: WO 0075/432 (14.12.2000 Gazette 2000/50)

(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: 07.06.1999 AU PQ081899 (71) Applicant: Evans, Peter Eric Bruce,Australian Capital Territory 2617 (AU)	(72) Inventor: Evans, Peter Eric Bruce,Australian Capital Territory 2617 (AU) (74) Representative: Bohmann, Armin K., Dr.  Bohmann & Loosen,Anwaltssozietät,Sonnenstrasse 8 80331 München 80331 München (DE)