(19)

(11)

EP 1 028 878 A1

(12)

(43) Date of publication: 23.08.2000 Bulletin 2000/34 (21) Application number: 99969070.4 (22) Date of filing: 14.09.1999

(51) International Patent Classification (IPC)7: B61B 10/02 (86) International application number: PCT/US9918/855 (87) International publication number: WO 0015/481 (23.03.2000 Gazette 2000/12)

(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: 14.09.1998 US 100117 P (71) Applicant: JERVIS B. WEBB INTERNATIONAL COMPANY Farmington Hills,Michigan 48331-5624 (US)	(72) Inventor: STEWART, Brian, G. Farmington Hills, MI 48333 (US) (74) Representative: Crouch, David John et al Bromhead & Co.19 Buckingham Street London WC2N 6EF London WC2N 6EF (GB)