(19)

(11)

EP 1 373 754 A2

(12)

(88) Date of publication A3: 21.08.2003 (43) Date of publication: 02.01.2004 Bulletin 2004/01 (21) Application number: 02736524.6 (22) Date of filing: 29.03.2002

(51) International Patent Classification (IPC)7: F16F 9/14 (86) International application number: PCT/US2002/009904 (87) International publication number: WO 2002/079021 (10.10.2002 Gazette 2002/41)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 29.03.2001 US 280551 P (71) Applicant: Sram Corporation Chicago,Illinois 60622 (US)	(72) Inventor: OLDS, Steven, J. Colorado Springs, CO 80919 (US) (74) Representative: Prechtel, Jörg, Dipl.-Phys. Dr. et al Weickmann & WeickmannPatentanwältePostfach 86 08 20 81635 München 81635 München (DE)