(19)

(11)

EP 3 145 639 A1

(12)

(43) Date of publication: 29.03.2017 Bulletin 2017/13 (21) Application number: 15733896.3 (22) Date of filing: 20.05.2015

(51) International Patent Classification (IPC):  B05B 7/16(2006.01) B05B 15/06(2006.01) F16L 53/00(2006.01) F16L 37/00(2006.01) (86) International application number: PCT/IB2015/053716 (87) International publication number: WO 2015/177739 (26.11.2015 Gazette 2015/47)

(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: MA (30) Priority: 23.05.2014 IT FI20140032 (71) Applicant: HPM Engineering S.r.l. 27023 Cassolnovo (Pavia) (IT)	(72) Inventor: GROHOVA, Marcela I-50031 Barberino di Mugello (Firenze) (IT) (74) Representative: Soldatini, Andrea et al Società Italiana Brevetti S.p.A. Corso dei Tintori, 25 50122 Firenze 50122 Firenze (IT)