(19)

(11)

EP 2 914 155 A1

(12)

(43) Date of publication: 09.09.2015 Bulletin 2015/37 (21) Application number: 12791684.9 (22) Date of filing: 30.10.2012

(51) International Patent Classification (IPC):  A47L 11/293(2006.01) A47L 11/40(2006.01) A47L 11/30(2006.01) (86) International application number: PCT/CH2012/000245 (87) International publication number: WO 2014/067019 (08.05.2014 Gazette 2014/19)

(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)