(19)

(11)

EP 1 173 875 A2

(12)

(88) Date of publication A3: 15.03.2001 (43) Date of publication: 23.01.2002 Bulletin 2002/04 (21) Application number: 00923616.7 (22) Date of filing: 25.04.2000

(51) International Patent Classification (IPC)7: H01J 9/24, H01J 17/16, H01J 17/48 (86) International application number: PCT/US0011/103 (87) International publication number: WO 0065/629 (02.11.2000 Gazette 2000/44)

(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: 26.04.1999 US 299370 26.04.1999 US 299350 26.04.1999 US 299371 26.04.1999 US 299372 26.04.1999 US 299394 01.03.2000 US 186025 P 01.03.2000 US 186024 P 02.03.2000 US 517353 02.03.2000 US 517759 (71) Applicant: Moore, Chad Byron Corning, NY 14830 (US)

(72) Inventor: Moore, Chad Byron Corning, NY 14830 (US) (74) Representative: Jones, Graham Henry et al Graham Jones & Company 77 Beaconsfield Road Blackheath, London SE3 7LG Blackheath, London SE3 7LG (GB)