(19)

(11)

EP 0 879 407 A1

(12)

(43) Date of publication: 25.11.1998 Bulletin 1998/48 (21) Application number: 96906498.0 (22) Date of filing: 09.02.1996

(51) International Patent Classification (IPC):  G01N 1/ 20( . ) (86) International application number: PCT/US1996/002145 (87) International publication number: WO 1997/029353 (14.08.1997 Gazette 1997/35)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (71) Applicants: C.H. & I. Technologies, Inc. Santa Paula, CA 93060 (US) Clark, James E., II Ojai, CA 93023 (US)	(72) Inventor: CLARK, James, E. Ojai, CA 93023 (US) (74) Representative: Casey, Lindsay Joseph, et al  F. R. Kelly & Co. 27 Clyde Road Ballsbridge Dublin 4 Dublin 4 (IE)