(19)

(11)

EP 2 723 667 A1

(12)

(43) Date of publication: 30.04.2014 Bulletin 2014/18 (21) Application number: 11868312.7 (22) Date of filing: 21.06.2011

(51) International Patent Classification (IPC):  B66B 1/06(2006.01) B66B 1/34(2006.01) (86) International application number: PCT/US2011/041206 (87) International publication number: WO 2012/177240 (27.12.2012 Gazette 2012/52)

(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 (71) Applicant: Otis Elevator Company Farmington, CT 06032 (US)	(72) Inventor: HSU, Arthur South Glastonbury, Connecticut 06073 (US) (74) Representative: Klunker . Schmitt-Nilson . Hirsch  Patentanwälte Destouchesstrasse 68 80796 München 80796 München (DE)