(19)

(11)

EP 2 788 705 A1

(12)

(43) Date of publication: 15.10.2014 Bulletin 2014/42 (21) Application number: 12799430.9 (22) Date of filing: 28.11.2012

(51) International Patent Classification (IPC):  F28F 1/02(2006.01) F28F 13/18(2006.01) F28F 1/42(2006.01) B21C 23/08(2006.01) (86) International application number: PCT/US2012/066822 (87) International publication number: WO 2013/085771 (13.06.2013 Gazette 2013/24)

(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 (30) Priority: 08.12.2011 US 201161568424 P (71) Applicant: Carrier Corporation Farmington, CT 06034 (US)	(72) Inventors: CLAVETTE, Patrick, Louis Simsbury, CT 06070 (US) BENDAPUDI, Satyam Fayetteville, NY 13066 (US) COVINGTON, Jefferi, J. South Glastonbury, CT 06073 (US) (74) Representative: Klunker . Schmitt-Nilson . Hirsch  Patentanwälte Destouchesstraße 68 80796 München 80796 München (DE)