(19)

(11)

EP 1 373 641 A1

(12)

(43) Date of publication: 02.01.2004 Bulletin 2004/01 (21) Application number: 02718136.1 (22) Date of filing: 15.02.2002

(51) International Patent Classification (IPC)7: E01C 9/08 (86) International application number: PCT/EP2002/001619 (87) International publication number: WO 2002/066742 (29.08.2002 Gazette 2002/35)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 19.02.2001 DE 10108033 08.12.2001 DE 10160444 (71) Applicant: Hess, Wilhelm 51379 Leverkusen (DE)	(72) Inventor: Hess, Wilhelm 51379 Leverkusen (DE) (74) Representative: Freischem, Stephan, Dipl.-Ing.  Patentanwälte FreischemAn Gross St. Martin 2 50667 Köln 50667 Köln (DE)