(19)

(11)

EP 2 160 544 A2

(12)

(88) Date of publication A3: 26.02.2009 (43) Date of publication: 10.03.2010 Bulletin 2010/10 (21) Application number: 08762740.2 (22) Date of filing: 29.05.2008

(51) International Patent Classification (IPC):  F25B 39/02(2006.01) F25B 40/06(2006.01) (86) International application number: PCT/IB2008/001371 (87) International publication number: WO 2009/004422 (08.01.2009 Gazette 2009/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 03.07.2007 IT VI20070187 (71) Applicant: WTK S.R.L. 36045 Lonigo (VI) (IT)	(72) Inventors: BENETTON, Bruno I-37047 S.Bonifacio (VR) (IT) GOLIN, Renzo I-36045 Lonigo (VI) (IT) (74) Representative: Bonini, Ercole  Studio Bonini Srl Corso Fogazzaro, 8 36100 Vicenza 36100 Vicenza (IT)