(19)

(11)

EP 3 803 239 A1

(12)

(43) Date of publication: 14.04.2021 Bulletin 2021/15 (21) Application number: 19727033.3 (22) Date of filing: 03.06.2019

(51) International Patent Classification (IPC):  F25D 25/04(2006.01) (86) International application number: PCT/EP2019/064305 (87) International publication number: WO 2019/233932 (12.12.2019 Gazette 2019/50)

(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 Designated Validation States: KH MA MD TN (30) Priority: 07.06.2018 IT 201800006126 (71) Applicant: B.S. Service S.r.l. 60044 Fabriano (AN) (IT)	(72) Inventor: BIAGINI, Lorenzo 60044 FABRIANO (AN) (IT) (74) Representative: Baldi, Claudio  Ing. Claudio Baldi S.r.l. Viale Cavallotti, 13 60035 Jesi (Ancona) 60035 Jesi (Ancona) (IT)