(19)

(11)

EP 0 858 605 A1

(12)

(43) Date of publication: 19.08.1998 Bulletin 1998/34 (21) Application number: 97922544.0 (22) Date of filing: 28.04.1997

(51) International Patent Classification (IPC):  G01R 31/ 08( . ) (86) International application number: PCT/US1997/007217 (87) International publication number: WO 1997/042514 (13.11.1997 Gazette 1997/49)

(84) Designated Contracting States: AT CH DE DK ES FR GB IT LI NL SE (30) Priority: 08.05.1996 US 19960016834P 02.12.1996 US 19960759297 (71) Applicant: Global Atmospherics, Inc. Tucson, AZ 85706-7155 (US)	(72) Inventor: CUMMINS, Kenneth, L. Tucson, AZ 85715 (US) (74) Representative: Liesegang, Roland, Dr.-Ing., et al  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 80801 München 80801 München (DE)