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(11)

EP 2 820 357 A2

(12)

(88) Date of publication A3: 31.10.2013 (43) Date of publication: 07.01.2015 Bulletin 2015/02 (21) Application number: 13716838.1 (22) Date of filing: 13.02.2013

(51) International Patent Classification (IPC):  F24H 1/20(2006.01) F24D 17/00(2006.01) F28D 20/00(2006.01) F24H 9/20(2006.01) F24D 19/10(2006.01) (86) International application number: PCT/IB2013/051174 (87) International publication number: WO 2013/121361 (22.08.2013 Gazette 2013/34)

(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 Designated Extension States: BA ME (30) Priority: 13.02.2012 PT 12106156 14.06.2012 PT 12106380 (71) Applicants: Marques Dias Pinto, João Paulo 2410-371 Leiria (PT) Marques Dias Pinto, Pedro Emanuel 3030-491 Coimbra (PT) Silva De Carvalho, João Pedro 3830-052 Ílhavo (PT)

(72) Inventors: Marques Dias Pinto, João Paulo 2410-371 Leiria (PT) Marques Dias Pinto, Pedro Emanuel 3030-491 Coimbra (PT) Silva De Carvalho, João Pedro 3830-052 Ílhavo (PT) (74) Representative: Ferreira, Maria Silvina  Clarke, Modet & Co. Rua Castilho, 50-9° 1269-163 Lisboa 1269-163 Lisboa (PT)