(19)

(11)

EP 0 719 440 A1

(12)

(43) Date of publication: 03.07.1996 Bulletin 1996/27 (21) Application number: 94929094.0 (22) Date of filing: 12.08.1994

(51) International Patent Classification (IPC):  G21B 3/ 00( . ) (86) International application number: PCT/US1994/009125 (87) International publication number: WO 1995/005665 (23.02.1995 Gazette 1995/09)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 12.08.1993 US 19930105793 (71) Applicant: The Exzite Corporation Stamford, CT 06901 (US)	(72) Inventors: TAPLIN, Harry, R. Thousand Oaks, CA 91360 (US) TALBERT, William, L. York, PA 17402 (US) (74) Representative: VOSSIUS & PARTNER  Postfach 86 07 67 81634 München 81634 München (DE)