(19)

(11)

EP 2 919 635 A1

(12)

(43) Date of publication: 23.09.2015 Bulletin 2015/39 (21) Application number: 12801443.8 (22) Date of filing: 19.11.2012

(51) International Patent Classification (IPC):  A47L 11/40(2006.01) (86) International application number: PCT/CH2012/000256 (87) International publication number: WO 2014/075196 (22.05.2014 Gazette 2014/21)

(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 (71) Applicant: Wetrok AG 8302 Kloten (CH)	(72) Inventor: LISCIO, Michele I-20146 Milano (IT) (74) Representative: Lusuardi, Werther  Dr. Lusuardi AG Kreuzbühlstrasse 8 8008 Zürich 8008 Zürich (CH)