(19)

(11)

EP 1 257 327 A1

(12)

(43) Date of publication: 20.11.2002 Bulletin 2002/47 (21) Application number: 00908734.7 (22) Date of filing: 21.02.2000

(51) International Patent Classification (IPC)7: A63B 22/02 (86) International application number: PCT/US0004/260 (87) International publication number: WO 0106/2351 (30.08.2001 Gazette 2001/35)

(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 (71) Applicants: Shafer, Terry The Woodlands, TX 77381 (US) White, Mark E. The Woodlands, TX 77380 (US)	(72) Inventors: Shafer, Terry The Woodlands, TX 77381 (US) White, Mark E. The Woodlands, TX 77380 (US) (74) Representative: Grubert, Andreas  Baker Botts99 Gresham Street London EC2V 7BA London EC2V 7BA (GB)