(19)

(11)

EP 0 610 477 A1

(12)

(43) Date of publication: 17.08.1994 Bulletin 1994/33 (21) Application number: 93918579.0 (22) Date of filing: 02.08.1993

(51) International Patent Classification (IPC):  C23G 1/ 28( . ) C23G 3/ 02( . ) (86) International application number: PCT/US1993/007253 (87) International publication number: WO 1994/003651 (17.02.1994 Gazette 1994/05)

(84) Designated Contracting States: BE DE ES FR GB IT SE (30) Priority: 05.08.1992 US 19920926528 08.04.1993 US 19930044946 (71) Applicant: Kolene Corporation Detroit Michigan 48223 (US)	(72) Inventors: COLE, John M. White Lake, MI 48386 (US) BESSEY, Charles M. Plymouth Township, MI 48105 (US) (74) Representative: Paget, Hugh Charles Edward, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)