(19)

(11)

EP 1 502 162 A1

(12)

(43) Date of publication: 02.02.2005 Bulletin 2005/05 (21) Application number: 02731985.4 (22) Date of filing: 31.05.2002

(51) International Patent Classification (IPC)7: G04C 17/00, G04B 37/00 (86) International application number: PCT/US2002/017063 (87) International publication number: WO 2003/102703 (11.12.2003 Gazette 2003/50)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 30.05.2002 US 384243 P (71) Applicant: Hourpower LLC Shaker Heights, OH 44120 (US)	(72) Inventors: ELLNER, Brenda Shaker Heights, OH 44120 (US) NANCE, Paulette Moreland Hills, OH 44022 (US) (74) Representative: Hofer, Dorothea, Dipl.-Phys. et al Prüfer & Partner GbRPatentanwälteHarthauser Strasse 25 d 81545 München 81545 München (DE)