(19)

(11)

EP 0 693 191 A1

(12)

(43) Date of publication: 24.01.1996 Bulletin 1996/04 (21) Application number: 94913384.0 (22) Date of filing: 07.04.1994

(51) International Patent Classification (IPC):  G03G 9/ 107( . ) G03G 9/ 113( . ) (86) International application number: PCT/US1994/003843 (87) International publication number: WO 1994/024613 (27.10.1994 Gazette 1994/24)

(84) Designated Contracting States: DE FR GB NL (30) Priority: 09.04.1993 US 19930045379 (71) Applicant: POWDERTECH CORPORATION Valparaiso, IN 46383 (US)	(72) Inventors: SUKOVICH, Alan Valparaiso, IN 46383 (US) HUTCHESON, William, R. Valparaiso, IN 46383 (US) (74) Representative: Woodman, Derek, et al  Frank B. Dehn & Co. European Patent Attorneys Imperial House 15-19 Kingsway London WC2B 6UZ London WC2B 6UZ (GB)