(19)

(11)

EP 0 150 182 A1

(12)

(43) Date of publication: 07.08.1985 Bulletin 1985/32 (21) Application number: 83903021.0 (22) Date of filing: 18.07.1983

(51) International Patent Classification (IPC):  G01N 27/ 409( . ) G01N 27/ 413( . ) G01N 27/ 27( . ) G01N 27/ 417( . ) (86) International application number: PCT/US1983/001098 (87) International publication number: WO 1985/000659 (14.02.1985 Gazette 1985/04)

(84) Designated Contracting States: DE GB NL (71) Applicants: Ford Motor Company Dearborn, MI 48121 (US) FORD MOTOR COMPANY LIMITED Brentwood, Essex CM13 3BW (GB) FORD-WERKE AKTIENGESELLSCHAFT D-50725 Köln (DE)	(72) Inventors: HETRICK, Robert, E. Dearborn Heights, MI 48127 (US) LOGOTHETIS, Eleftherios, M. Birmingham, MI 48009 (US) (74) Representative: Messulam, Alec Moses, et al  A. Messulam & Co. 24 Broadway Leigh on Sea Essex SS9 1BN Leigh on Sea Essex SS9 1BN (GB)