(19)

(11)

EP 2 731 688 A1

(12)

(43) Date of publication: 21.05.2014 Bulletin 2014/21 (21) Application number: 13738080.4 (22) Date of filing: 18.01.2013

(51) International Patent Classification (IPC):  A63B 51/12(2006.01) (86) International application number: PCT/US2013/022141 (87) International publication number: WO 2013/109887 (25.07.2013 Gazette 2013/30)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 19.01.2012 US 201261588483 P (71) Applicant: Revolutionary Tennis Innovations, LLC New York, NY 10014 (US)	(72) Inventors: BRANDT, Richard, A. New York, NY 10011 (US) SCEPANOVIC, Dragoslav New York, NY 10065 (US) (74) Representative: Regimbeau  20, rue de Chazelles 75847 Paris Cedex 17 75847 Paris Cedex 17 (FR)