(19)

(11)

EP 0 919 002 A1

(12)

(43) Date of publication: 02.06.1999 Bulletin 1999/22 (21) Application number: 97938355.0 (22) Date of filing: 15.08.1997

(51) International Patent Classification (IPC):  G01V 3/ 10( . ) G08B 13/ 24( . ) (86) International application number: PCT/US1997/014441 (87) International publication number: WO 1998/007052 (19.02.1998 Gazette 1998/07)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 16.08.1996 US 19960699880 18.06.1997 US 19970878239 (71) Applicant: Weaver, Jon Neal Gainesville, FL 32605 (US)	(72) Inventor: Weaver, Jon Neal Gainesville, FL 32605 (US) (74) Representative: Perry, Robert Edward  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)