(19)

(11)

EP 0 907 807 A1

(12)

(43) Date of publication: 14.04.1999 Bulletin 1999/15 (21) Application number: 97930177.0 (22) Date of filing: 26.06.1997

(51) International Patent Classification (IPC):  E04H 12/ 02( . ) E04H 12/ 22( . ) (86) International application number: PCT/US1997/010794 (87) International publication number: WO 1998/000615 (08.01.1998 Gazette 1998/01)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.06.1996 US 19960020753P (71) Applicant: Advanced Metals Technology Corp. Walkersville, MD 21793 (US)	(72) Inventors: STANLEY, Earl, K. Naples, FL 33942-1066 (US) MOTT, John, R. Walkersville, MD 21793 (US) (74) Representative: Crouch, David John, et al  Bromhead & Co. 19 Buckingham Street London WC2N 6EF London WC2N 6EF (GB)