(19)

(11)

EP 1 222 500 A2

(12)

(88) Date of publication A3: 07.09.2001 (43) Date of publication: 17.07.2002 Bulletin 2002/29 (21) Application number: 00973373.4 (22) Date of filing: 20.09.2000

(51) International Patent Classification (IPC)7: G05B 19/00 (86) International application number: PCT/US0025/802 (87) International publication number: WO 0129/624 (26.04.2001 Gazette 2001/17)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 18.10.1999 US 420360 (71) Applicant: Xygent, Inc. Warwick, RI 02886 (US)	(72) Inventors: TORNQUIST, Clay East Greenwich, RI 02818 (US) CASWELL, Paul, F. Providence, RI 02909-1232 (US) TURCOTTE, Donald, G. Tiverton, RI 02878-3203 (US) (74) Representative: HOFFMANN - EITLE  Patent- und RechtsanwälteArabellastrasse 4 81925 München 81925 München (DE)